{"id":1775,"date":"2026-09-08T05:24:32","date_gmt":"2026-09-08T05:24:32","guid":{"rendered":"https:\/\/metalite.net\/?post_type=product&#038;p=1775"},"modified":"2026-09-08T05:28:59","modified_gmt":"2026-09-08T05:28:59","slug":"crane-outrigger-extension-hydraulic-cylinder-hcyy11112022-%cf%8670x%cf%8650-20mpa","status":"publish","type":"product","link":"https:\/\/metalite.net\/ko\/product\/crane-outrigger-extension-hydraulic-cylinder-hcyy11112022-%cf%8670x%cf%8650-20mpa\/","title":{"rendered":"Crane Outrigger Extension Hydraulic Cylinder \u2014 HCYY11112022 (\u03a670\u00d7\u03a650, 20MPa)"},"content":{"rendered":"<div style=\"font-family: 'Segoe UI', Arial, sans-serif; color: #1a1a1a; max-width: 1100px; margin: 0 auto; padding: 0 16px; line-height: 1.7;\">\n<p><!-- SEO Keywords for this page: Core: crane outrigger extension hydraulic cylinder Related: outrigger beam cylinder, crane stabilizer extension cylinder, hydraulic outrigger actuator, crane support leg cylinder Long-tail: crane outrigger extension hydraulic cylinder \u03a670 bore 20MPa | hydraulic cylinder for crane outrigger beam extension | mobile crane outrigger extension cylinder manufacturer --><\/p>\n<p><!-- Product Hero Section --><\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 32px; margin-bottom: 48px; align-items: flex-start;\">\n<div style=\"flex: 1 1 340px; min-width: 280px;\">\n<h2 style=\"font-size: 28px; font-weight: bold; color: #0d2d52; margin: 0 0 16px 0; line-height: 1.3;\">Crane Outrigger Extension Hydraulic Cylinder<\/h2>\n<p style=\"font-size: 16px; color: #333; margin: 0 0 24px 0;\">The <strong>crane outrigger extension hydraulic cylinder<\/strong> HCYY11112022 drives the lateral deployment of the outrigger beam \u2014 the horizontal telescoping structure that widens the crane&#8217;s effective base footprint before a lift begins. With a \u03a670mm bore, a 1,237mm stroke, and a compact installation distance of just 140mm at full retraction, this cylinder is engineered for the tight packaging constraints inside folded outrigger box beams while delivering the extension force needed to slide heavy steel beams outward under loaded conditions.<\/p>\n<div style=\"background: #f0f4fa; border-left: 4px solid #1a5fa8; padding: 16px 20px; border-radius: 0 6px 6px 0; margin-bottom: 24px;\">\n<p style=\"margin: 0; font-size: 15px; color: #1a5fa8; font-weight: 600;\">Key Specifications at a Glance<\/p>\n<ul style=\"margin: 10px 0 0 0; padding-left: 18px; color: #333; font-size: 14px;\">\n<li style=\"margin-bottom: 4px;\">Bore \u00d7 Rod \u00d7 Stroke: \u03a670 \u00d7 \u03a650 \u00d7 1237 mm<\/li>\n<li style=\"margin-bottom: 4px;\">Working Pressure: 20 MPa<\/li>\n<li style=\"margin-bottom: 4px;\">Max Withstand Pressure: 30 MPa<\/li>\n<li style=\"margin-bottom: 4px;\">Installation Distance: 140 mm<\/li>\n<li>Weight: 48 kg<\/li>\n<\/ul>\n<\/div>\n<p><a style=\"display: inline-block; background: #1a5fa8; color: #fff; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: 600; font-size: 15px;\" href=\"#contact-cta\">Request a Quote or Technical Drawing<\/a><\/p>\n<\/div>\n<\/div>\n<div id=\"attachment_1752\" style=\"width: 610px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-1752\" class=\"wp-image-1752\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112022-Crane-Outrigger-Extension-Hydraulic-Cylinder-1024x1024.webp\" alt=\"\" width=\"600\" height=\"600\" title=\"\"><p id=\"caption-attachment-1752\" class=\"wp-caption-text\">Model: HCYY11112022<\/p><\/div>\n<p><!-- Section 1: Product Overview --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">How the Outrigger Beam Extension Cylinder Determines Crane Stability Before a Lift<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Before any crane lift begins, the outrigger system must be fully deployed. The outrigger consists of two sequential motions: the beam extends horizontally outward to increase the support base width, and then the vertical jack cylinder drives the pad into the ground to transfer load off the wheels. The HCYY11112022 handles the first of those two motions \u2014 the lateral beam extension.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">What makes this cylinder&#8217;s engineering task non-trivial is the packaging constraint. The 140mm installation distance \u2014 pin-to-pin at full retraction \u2014 means the cylinder must fit inside a folded outrigger beam structure with almost no clearance to spare. Yet once extended, it must push the outrigger beam outward 1,237mm against the combined resistance of beam weight, sliding friction in the box section, and any accumulated debris in the guide track. In wet or muddy field conditions, that friction load can be significantly higher than on a clean test rig.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">At 20MPa working pressure with a \u03a670mm bore, the HCYY11112022 generates approximately <strong>77 kN of push force<\/strong> \u2014 sufficient to overcome beam sliding friction with an adequate force reserve for real-world contaminated conditions. The 30MPa maximum withstand pressure provides a safety margin for pressure spikes that can occur when the beam reaches end-of-travel and the operator has not yet released the control input.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">At 48kg, this is a practically sized component \u2014 heavy enough to be structurally robust but light enough for a two-person replacement in the field without specialist lifting equipment.<\/p>\n<p><!-- Installation Diagram --><\/p>\n<div style=\"background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px; margin: 32px 0;\">\n<p style=\"margin: 0 0 12px 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Installation Position Diagram \u2014 HCYY11112021 \/ 22 \/ 23 on Crane<\/p>\n<p><img decoding=\"async\" style=\"width: 100%; border-radius: 4px; display: block;\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112021-2-3-Crane-Hydraulic-Cylinder-Location-Diagram-scaled.webp\" alt=\"HCYY11112022 crane outrigger extension hydraulic cylinder installation location diagram\" title=\"\"><\/p>\n<p style=\"margin: 12px 0 0 0; font-size: 13px; color: #666;\">The diagram shows the mounting positions of the main boom lift cylinder (HCYY11112021), outrigger extension cylinder (HCYY11112022), and outrigger jack cylinder (HCYY11112023) within the crane chassis structure.<\/p>\n<\/div>\n<p><!-- Section 2: Technical Specs Table --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Full Technical Specifications for the Hydraulic Cylinder for Crane Outrigger Beam Extension<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 20px 0;\">The specification values for the HCYY11112022 reflect a design optimized for longitudinal push force over a long stroke within a very compact retracted envelope. Each parameter is explained in context below.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-1767\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112022.webp\" alt=\"\" width=\"705\" height=\"426\" title=\"\" srcset=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112022.webp 705w, https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112022-480x290.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 705px, 100vw\" \/><\/p>\n<div style=\"overflow-x: auto; margin-bottom: 28px;\">\n<table style=\"width: 100%; border-collapse: collapse; font-size: 14px; min-width: 600px;\">\n<thead>\n<tr style=\"background: #0d2d52; color: #fff;\">\n<th style=\"padding: 12px 14px; text-align: left; font-weight: 600;\">Parameter<\/th>\n<th style=\"padding: 12px 14px; text-align: left; font-weight: 600;\">Value<\/th>\n<th style=\"padding: 12px 14px; text-align: left; font-weight: 600;\">Engineering Significance<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Model<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">HCYY11112022<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Unique product identifier for procurement, spare parts ordering, and service records.<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fc;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Specifications<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">\u03a670 \u00d7 \u03a650 \u00d7 1237 mm<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Bore \u00d7 Rod diameter \u00d7 Stroke. The \u03a650mm rod is 71% of bore diameter \u2014 appropriate for a primarily push-load application where rod buckling over 1,237mm stroke must be within Euler limits.<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Working Pressure<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">20 MPa<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Rated operating pressure. At \u03a670mm bore (effective area \u2248 3,848 mm\u00b2), this produces approximately 77 kN of extension force \u2014 more than adequate for beam extension against field friction loads.<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fc;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Max Withstand Pressure<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">30 MPa<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Proof pressure \u2014 1.5\u00d7 working pressure safety factor. This generous ratio reflects the end-of-stroke pressure spike risk when the beam contacts its travel stop.<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Stroke<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">1,237 mm<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Total beam travel distance. This determines the maximum outrigger spread width achievable, which directly sets the crane&#8217;s rated lifting capacity at a given radius.<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fc;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Installation Distance<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">140 mm<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Pin-to-pin dimension at full retraction. At only 140mm, this cylinder is designed to sit almost entirely within the outrigger box section when stowed \u2014 a critical packaging requirement.<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; font-weight: 600; color: #0d2d52;\">Weight<\/td>\n<td style=\"padding: 11px 14px;\">48 kg<\/td>\n<td style=\"padding: 11px 14px; color: #555;\">Manageable by a two-person maintenance crew for field replacement. Weight is consistent with the structural requirements of a \u03a670mm bore long-stroke cylinder.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><!-- Section 3: Why Installation Distance Matters --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Why the 140mm Installation Distance Is the Critical Dimension for Mobile Crane Outrigger Extension Cylinder Selection<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Most procurement engineers focus on bore, stroke, and pressure when selecting a replacement outrigger extension cylinder. The installation distance \u2014 specifically the retracted pin-to-pin dimension \u2014 is the parameter that most frequently causes fitment failures in the field.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">At 140mm retracted installation distance, the HCYY11112022 has an unusually compact footprint relative to its 1,237mm stroke. The ratio of stroke to retracted length is approximately 8.8:1 \u2014 this is achieved through a combination of precise bore-to-wall-thickness engineering and the mounting geometry that allows the cylinder to nest inside the outrigger beam profile. If a replacement cylinder has a retracted installation distance even 20\u201330mm longer than the original, it may prevent the outrigger beam from fully retracting into the transport position, which creates a road width violation in jurisdictions with strict vehicle width regulations.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Conversely, a cylinder with a significantly shorter installation distance may not locate correctly in the mounting bracket geometry, creating bending moments at the pin eyes that the cylinder was not designed to sustain. Always verify the retracted installation distance \u2014 not just the stroke \u2014 when specifying an outrigger extension cylinder replacement.<\/p>\n<p><!-- Section 4: Stroke-to-Stability Relationship --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">How a 1,237mm Stroke Outrigger Extension Cylinder Affects Rated Crane Lift Capacity<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Crane capacity charts (load charts) are based on outrigger spread width as one of the primary input variables. A wider outrigger spread increases the effective tipping fulcrum distance, which allows the crane to carry a heavier load at a given radius before the tipping moment is reached. The 1,237mm stroke of the HCYY11112022 directly determines how wide the outrigger beam can extend beyond the crane chassis.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">In practice, crane operators are often required to work with partially extended outriggers when space constraints prevent full spread \u2014 in urban worksites, inside buildings, or adjacent to excavations. Each partial extension position has its own rated capacity listed in the load chart. A cylinder that cannot reach its full stroke due to seal degradation, contamination, or internal scoring effectively de-rates the crane&#8217;s capacity without any visible indication to the operator. This is why regular function testing of outrigger extension cylinders \u2014 confirming full stroke is achievable under working pressure \u2014 is a standard part of crane pre-use inspection.<\/p>\n<p><!-- Section 5: Applications --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Typical Applications for Crane Stabilizer Extension Cylinders in Mobile and Truck-Mounted Cranes<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">The HCYY11112022 is applicable across the range of mobile cranes that use H-frame or X-frame outrigger configurations. Common deployment scenarios include:<\/p>\n<ul style=\"padding-left: 20px; color: #333; font-size: 15px; margin: 0 0 20px 0;\">\n<li style=\"margin-bottom: 10px;\"><strong>Truck-mounted hydraulic cranes (25t\u2013160t):<\/strong> The outrigger extension cylinder is one of four identical units (or two distinct pairs for front and rear outriggers) that must deploy reliably before every lift cycle. High cycle frequency makes seal durability a top priority.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>All-terrain cranes:<\/strong> Outrigger extension in these machines occurs on uneven terrain where the beam may be partially loaded during extension, increasing the required extension force beyond theoretical calculations.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>City cranes and compact pick-and-carry cranes:<\/strong> Where outrigger spread is restricted by job site geometry, full and partial extension positions must be reliably repeatable. Seal integrity and consistent stroke are critical.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>OEM crane manufacturing:<\/strong> For crane builders sourcing outrigger system components, consistent dimensional accuracy and batch-to-batch traceability are required for production line assembly.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Crane fleet MRO (Maintenance, Repair &amp; Overhaul):<\/strong> Replacement of cylinders with scored bores, worn rod seals, or bent rods caused by off-centre loading during beam extension in contaminated conditions.<\/li>\n<\/ul>\n<p><!-- Section 6: Construction Details --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Construction and Quality Standards for Long-Stroke Outrigger Extension Cylinders<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Outrigger cylinders operate in particularly harsh conditions compared to boom lift cylinders: they are closer to the ground, exposed to road spray, mud, and debris, and typically stowed in positions where contamination can accumulate around the rod wiper seal during transit. Construction standards must address these environmental factors directly.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 28px;\">\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Rod Wiper Seal<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">A heavy-duty polyurethane or NBR wiper seal is fitted at the gland exit to scrape particulate contamination from the rod surface before it reaches the primary rod seal. For outrigger cylinders exposed to mud and road debris, a double-wiper configuration is preferable and available on request.<\/p>\n<\/div>\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Chrome Rod Surface<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">The \u03a650mm rod receives a hard chrome plating of 20\u201325\u03bcm on a polished substrate. Chrome hardness (HV 800\u20131000) resists the abrasive scoring that occurs when the rod is retracted with surface contamination present \u2014 the single most common cause of premature outrigger cylinder failure.<\/p>\n<\/div>\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Cylinder Barrel Honing<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Internal bore honed to Ra 0.2\u20130.4\u03bcm. At \u03a670mm bore, maintaining roundness and cylindricity within 0.02mm tolerance along the 1,237mm cylinder length requires precision honing equipment \u2014 not achievable with basic boring operations.<\/p>\n<\/div>\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Pin Eye Design<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Clevis or spherical bearing eye ends are machined and heat-treated for wear resistance at the pivot pin interface. Spherical bearing eyes allow \u00b13\u00b0 angular misalignment, accommodating the slight geometric variation that occurs as the outrigger beam extends and the cylinder angle shifts minutely.<\/p>\n<\/div>\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">External Coating<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Exterior surfaces primed and topcoated with industrial epoxy. Colour can be matched to crane OEM specification. The coating system is selected for resistance to hydraulic oil, diesel, and road salt \u2014 the typical chemical exposure for vehicle-mounted crane components.<\/p>\n<\/div>\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Pressure Test<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Each cylinder is tested at 30MPa (max withstand pressure) with a minimum 5-minute hold at full extension and full retraction. Both positions are tested because seal loading differs between extended and retracted configurations in long-stroke cylinders.<\/p>\n<\/div>\n<\/div>\n<p><!-- Section 7: Ordering Guidance --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">What to Confirm When Ordering a Replacement Crane Outrigger Extension Cylinder for Your Machine<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Outrigger extension cylinders are frequently ordered as replacement parts rather than OEM first-fits. To confirm the HCYY11112022 matches your application or to specify a custom variant, the following information is required:<\/p>\n<ul style=\"padding-left: 20px; color: #333; font-size: 15px; margin: 0 0 20px 0;\">\n<li style=\"margin-bottom: 10px;\"><strong>Retracted installation distance:<\/strong> Measure pin-centre to pin-centre with the cylinder fully retracted. For this model it is 140mm \u2014 confirm your chassis bracket spacing matches.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Pin bore diameter and style:<\/strong> Clevis width, pin diameter, and whether spherical bearings are used at the pin eyes. Mismatched pin geometry causes fretting and accelerated wear at the mounting interface.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Port location and thread type:<\/strong> On outrigger extension cylinders, port location relative to the cylinder body affects hose routing inside the beam section. Confirm port position (head end \/ rod end) and thread specification (SAE, BSP, metric).<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Hydraulic fluid type:<\/strong> Standard mineral oil seals are fitted as default. If the crane uses fire-resistant hydraulic fluid, specify fluid type for alternative seal material selection.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Crane make, model, and outrigger position:<\/strong> This allows cross-reference with known dimensional data and helps avoid specification errors before manufacturing.<\/li>\n<\/ul>\n<p><!-- CAD Drawing --><\/p>\n<div style=\"background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px; margin: 32px 0;\">\n<p style=\"margin: 0 0 12px 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">HCYY11112022 CAD Drawing Reference<\/p>\n<p><img decoding=\"async\" style=\"width: 100%; border-radius: 4px; display: block;\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112022-Crane-Outrigger-Extension-Hydraulic-Cylinder-CAD.webp\" alt=\"HCYY11112022 crane outrigger extension hydraulic cylinder CAD technical drawing\" title=\"\"><\/p>\n<p style=\"margin: 12px 0 0 0; font-size: 13px; color: #666;\">Full-dimension CAD drawing available in DXF and PDF format. Contact us with your crane model and application details to receive the drawing package for dimensional verification.<\/p>\n<\/div>\n<p><!-- FAQ --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Frequently Asked Questions \u2014 HCYY11112022 Crane Outrigger Extension Hydraulic Cylinder<\/h2>\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: The outrigger beam on my crane extends slowly only on one side \u2014 is this a cylinder issue?<\/p>\n<\/div>\n<div style=\"background: #fff; padding: 14px 18px;\">\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Slow extension on one side with normal speed on the other usually indicates either internal bypassing (worn piston seal allowing fluid to bypass around the piston) or a partial blockage in the supply circuit to that cylinder. Internal bypassing will also cause the beam to slowly retract under gravity when the control valve is in neutral \u2014 if you observe drift, the piston seal is the likely cause. A cylinder with a scored bore (visible as longitudinal scratches) cannot be resealed reliably and should be replaced.<\/p>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: What is the theoretical push force of this cylinder at 20MPa?<\/p>\n<\/div>\n<div style=\"background: #fff; padding: 14px 18px;\">\n<p style=\"margin: 0; font-size: 14px; color: #444;\">\u03a670mm bore gives an effective area of approximately 3,848 mm\u00b2. At 20MPa, theoretical push force is approximately 76.9 kN (\u22487.8 tonnes-force). Actual usable force after accounting for seal friction is typically 3\u20135% lower, approximately 73\u201374 kN. Retraction force (pull stroke) is lower due to the reduced annular area with the rod present: approximately 53 kN at 20MPa.<\/p>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: Can we order matched pairs of cylinders for simultaneous front and rear outrigger extension?<\/p>\n<\/div>\n<div style=\"background: #fff; padding: 14px 18px;\">\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Yes. For applications where matched performance across multiple outrigger cylinders is important, we can supply cylinders from the same production batch with matched internal geometry tolerances. This minimises synchronisation discrepancy when the outrigger circuits are operated simultaneously from a single control valve. Specify &#8220;matched set&#8221; when ordering and confirm the quantity required.<\/p>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: Is the 140mm installation distance a standard figure or application-specific?<\/p>\n<\/div>\n<div style=\"background: #fff; padding: 14px 18px;\">\n<p style=\"margin: 0; font-size: 14px; color: #444;\">The 140mm retracted installation distance is the designed specification for this cylinder model. Custom installation distances can be manufactured if your application requires a different retracted pin-to-pin dimension \u2014 provide your required value and we will advise on feasibility and lead time.<\/p>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: How should the outrigger extension cylinder be maintained to maximise service life?<\/p>\n<\/div>\n<div style=\"background: #fff; padding: 14px 18px;\">\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Three practices have the greatest impact: (1) wipe the rod clean before retraction if the cylinder has been deployed in muddy or dusty conditions \u2014 this is the single most effective way to extend wiper and rod seal life; (2) check for any rod surface pitting or scoring at each pre-lift inspection, and address it before it progresses; (3) inspect the rod wiper seal for cracking or distortion at each periodic service interval \u2014 a degraded wiper allows abrasive contamination past the seal stack and accelerates bore wear.<\/p>\n<\/div>\n<\/div>\n<p><!-- CTA Section --><\/p>\n<div id=\"contact-cta\" style=\"background: linear-gradient(135deg, #0d2d52 0%, #1a5fa8 100%); color: #fff; border-radius: 8px; padding: 36px 32px; margin: 48px 0 32px 0; text-align: center;\">\n<p style=\"font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; margin: 0 0 10px 0; opacity: 0.8;\">B2B Procurement &amp; OEM Supply<\/p>\n<h2 style=\"font-size: 26px; font-weight: bold; color: #fff; margin: 0 0 16px 0; border: none; padding: 0;\">Ready to Order or Verify Fit for the HCYY11112022?<\/h2>\n<p style=\"font-size: 15px; opacity: 0.9; max-width: 620px; margin: 0 auto 28px auto; line-height: 1.7;\">Share your crane make and model, the retracted installation distance of your existing cylinder, and your required quantity. We will confirm dimensional compatibility, supply a CAD drawing for engineering review, and issue a formal quotation within 24\u201348 business hours.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;\"><a style=\"display: inline-block; background: #fff; color: #0d2d52; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: bold; font-size: 15px;\" href=\"mailto:sales@metalite.net\">Request a Quote<\/a><br \/>\n<a style=\"display: inline-block; background: transparent; color: #fff; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: 600; font-size: 15px; border: 2px solid rgba(255,255,255,0.6);\" href=\"#contacts\">Request CAD Drawing<\/a><br \/>\n<a style=\"display: inline-block; background: transparent; color: #fff; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: 600; font-size: 15px; border: 2px solid rgba(255,255,255,0.6);\" href=\"\/ko\/contact\/\">Bulk Order Enquiry<\/a><\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>HCYY11112022 outrigger extension cylinder: \u03a670mm bore, 20MPa, 1237mm stroke, 140mm retracted. OEM &amp; MRO supply. CAD drawings available. Request a quote.<\/p>","protected":false},"featured_media":1752,"template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"<div style=\"font-family: 'Segoe UI', Arial, sans-serif; color: #1a1a1a; max-width: 1100px; margin: 0 auto; padding: 0 16px; line-height: 1.7;\">\r\n\r\n<!-- SEO Keywords for this page: Core: crane outrigger extension hydraulic cylinder Related: outrigger beam cylinder, crane stabilizer extension cylinder, hydraulic outrigger actuator, crane support leg cylinder Long-tail: crane outrigger extension hydraulic cylinder \u03a670 bore 20MPa | hydraulic cylinder for crane outrigger beam extension | mobile crane outrigger extension cylinder manufacturer -->\r\n\r\n<!-- Product Hero Section -->\r\n<div style=\"display: flex; flex-wrap: wrap; gap: 32px; margin-bottom: 48px; align-items: flex-start;\">\r\n<div style=\"flex: 1 1 340px; min-width: 280px;\">\r\n<h2 style=\"font-size: 28px; font-weight: bold; color: #0d2d52; margin: 0 0 16px 0; line-height: 1.3;\">Crane Outrigger Extension Hydraulic Cylinder<\/h2>\r\n<p style=\"font-size: 16px; color: #333; margin: 0 0 24px 0;\">The <strong>crane outrigger extension hydraulic cylinder<\/strong> HCYY11112022 drives the lateral deployment of the outrigger beam \u2014 the horizontal telescoping structure that widens the crane's effective base footprint before a lift begins. With a \u03a670mm bore, a 1,237mm stroke, and a compact installation distance of just 140mm at full retraction, this cylinder is engineered for the tight packaging constraints inside folded outrigger box beams while delivering the extension force needed to slide heavy steel beams outward under loaded conditions.<\/p>\r\n\r\n<div style=\"background: #f0f4fa; border-left: 4px solid #1a5fa8; padding: 16px 20px; border-radius: 0 6px 6px 0; margin-bottom: 24px;\">\r\n<p style=\"margin: 0; font-size: 15px; color: #1a5fa8; font-weight: 600;\">Key Specifications at a Glance<\/p>\r\n\r\n<ul style=\"margin: 10px 0 0 0; padding-left: 18px; color: #333; font-size: 14px;\">\r\n \t<li style=\"margin-bottom: 4px;\">Bore \u00d7 Rod \u00d7 Stroke: \u03a670 \u00d7 \u03a650 \u00d7 1237 mm<\/li>\r\n \t<li style=\"margin-bottom: 4px;\">Working Pressure: 20 MPa<\/li>\r\n \t<li style=\"margin-bottom: 4px;\">Max Withstand Pressure: 30 MPa<\/li>\r\n \t<li style=\"margin-bottom: 4px;\">Installation Distance: 140 mm<\/li>\r\n \t<li>Weight: 48 kg<\/li>\r\n<\/ul>\r\n<\/div>\r\n<a style=\"display: inline-block; background: #1a5fa8; color: #fff; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: 600; font-size: 15px;\" href=\"#contact-cta\">Request a Quote or Technical Drawing<\/a>\r\n\r\n<\/div>\r\n<\/div>\r\n\r\n[caption id=\"attachment_1752\" align=\"aligncenter\" width=\"600\"]<img class=\"wp-image-1752\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112022-Crane-Outrigger-Extension-Hydraulic-Cylinder-1024x1024.webp\" alt=\"\" width=\"600\" height=\"600\" \/> Model: HCYY11112022[\/caption]\r\n\r\n<!-- Section 1: Product Overview -->\r\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">How the Outrigger Beam Extension Cylinder Determines Crane Stability Before a Lift<\/h2>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Before any crane lift begins, the outrigger system must be fully deployed. The outrigger consists of two sequential motions: the beam extends horizontally outward to increase the support base width, and then the vertical jack cylinder drives the pad into the ground to transfer load off the wheels. The HCYY11112022 handles the first of those two motions \u2014 the lateral beam extension.<\/p>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">What makes this cylinder's engineering task non-trivial is the packaging constraint. The 140mm installation distance \u2014 pin-to-pin at full retraction \u2014 means the cylinder must fit inside a folded outrigger beam structure with almost no clearance to spare. Yet once extended, it must push the outrigger beam outward 1,237mm against the combined resistance of beam weight, sliding friction in the box section, and any accumulated debris in the guide track. In wet or muddy field conditions, that friction load can be significantly higher than on a clean test rig.<\/p>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">At 20MPa working pressure with a \u03a670mm bore, the HCYY11112022 generates approximately <strong>77 kN of push force<\/strong> \u2014 sufficient to overcome beam sliding friction with an adequate force reserve for real-world contaminated conditions. The 30MPa maximum withstand pressure provides a safety margin for pressure spikes that can occur when the beam reaches end-of-travel and the operator has not yet released the control input.<\/p>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">At 48kg, this is a practically sized component \u2014 heavy enough to be structurally robust but light enough for a two-person replacement in the field without specialist lifting equipment.<\/p>\r\n<!-- Installation Diagram -->\r\n<div style=\"background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px; margin: 32px 0;\">\r\n<p style=\"margin: 0 0 12px 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Installation Position Diagram \u2014 HCYY11112021 \/ 22 \/ 23 on Crane<\/p>\r\n<img style=\"width: 100%; border-radius: 4px; display: block;\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112021-2-3-Crane-Hydraulic-Cylinder-Location-Diagram-scaled.webp\" alt=\"HCYY11112022 crane outrigger extension hydraulic cylinder installation location diagram\" \/>\r\n<p style=\"margin: 12px 0 0 0; font-size: 13px; color: #666;\">The diagram shows the mounting positions of the main boom lift cylinder (HCYY11112021), outrigger extension cylinder (HCYY11112022), and outrigger jack cylinder (HCYY11112023) within the crane chassis structure.<\/p>\r\n\r\n<\/div>\r\n<!-- Section 2: Technical Specs Table -->\r\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Full Technical Specifications for the Hydraulic Cylinder for Crane Outrigger Beam Extension<\/h2>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 20px 0;\">The specification values for the HCYY11112022 reflect a design optimized for longitudinal push force over a long stroke within a very compact retracted envelope. Each parameter is explained in context below.<\/p>\r\n<img class=\"aligncenter size-full wp-image-1767\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112022.webp\" alt=\"\" width=\"705\" height=\"426\" \/>\r\n<div style=\"overflow-x: auto; margin-bottom: 28px;\">\r\n<table style=\"width: 100%; border-collapse: collapse; font-size: 14px; min-width: 600px;\">\r\n<thead>\r\n<tr style=\"background: #0d2d52; color: #fff;\">\r\n<th style=\"padding: 12px 14px; text-align: left; font-weight: 600;\">Parameter<\/th>\r\n<th style=\"padding: 12px 14px; text-align: left; font-weight: 600;\">Value<\/th>\r\n<th style=\"padding: 12px 14px; text-align: left; font-weight: 600;\">Engineering Significance<\/th>\r\n<\/tr>\r\n<\/thead>\r\n<tbody>\r\n<tr style=\"background: #fff;\">\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Model<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">HCYY11112022<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Unique product identifier for procurement, spare parts ordering, and service records.<\/td>\r\n<\/tr>\r\n<tr style=\"background: #f7f9fc;\">\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Specifications<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">\u03a670 \u00d7 \u03a650 \u00d7 1237 mm<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Bore \u00d7 Rod diameter \u00d7 Stroke. The \u03a650mm rod is 71% of bore diameter \u2014 appropriate for a primarily push-load application where rod buckling over 1,237mm stroke must be within Euler limits.<\/td>\r\n<\/tr>\r\n<tr style=\"background: #fff;\">\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Working Pressure<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">20 MPa<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Rated operating pressure. At \u03a670mm bore (effective area \u2248 3,848 mm\u00b2), this produces approximately 77 kN of extension force \u2014 more than adequate for beam extension against field friction loads.<\/td>\r\n<\/tr>\r\n<tr style=\"background: #f7f9fc;\">\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Max Withstand Pressure<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">30 MPa<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Proof pressure \u2014 1.5\u00d7 working pressure safety factor. This generous ratio reflects the end-of-stroke pressure spike risk when the beam contacts its travel stop.<\/td>\r\n<\/tr>\r\n<tr style=\"background: #fff;\">\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Stroke<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">1,237 mm<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Total beam travel distance. This determines the maximum outrigger spread width achievable, which directly sets the crane's rated lifting capacity at a given radius.<\/td>\r\n<\/tr>\r\n<tr style=\"background: #f7f9fc;\">\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Installation Distance<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">140 mm<\/td>\r\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Pin-to-pin dimension at full retraction. At only 140mm, this cylinder is designed to sit almost entirely within the outrigger box section when stowed \u2014 a critical packaging requirement.<\/td>\r\n<\/tr>\r\n<tr style=\"background: #fff;\">\r\n<td style=\"padding: 11px 14px; font-weight: 600; color: #0d2d52;\">Weight<\/td>\r\n<td style=\"padding: 11px 14px;\">48 kg<\/td>\r\n<td style=\"padding: 11px 14px; color: #555;\">Manageable by a two-person maintenance crew for field replacement. Weight is consistent with the structural requirements of a \u03a670mm bore long-stroke cylinder.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n<!-- Section 3: Why Installation Distance Matters -->\r\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Why the 140mm Installation Distance Is the Critical Dimension for Mobile Crane Outrigger Extension Cylinder Selection<\/h2>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Most procurement engineers focus on bore, stroke, and pressure when selecting a replacement outrigger extension cylinder. The installation distance \u2014 specifically the retracted pin-to-pin dimension \u2014 is the parameter that most frequently causes fitment failures in the field.<\/p>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">At 140mm retracted installation distance, the HCYY11112022 has an unusually compact footprint relative to its 1,237mm stroke. The ratio of stroke to retracted length is approximately 8.8:1 \u2014 this is achieved through a combination of precise bore-to-wall-thickness engineering and the mounting geometry that allows the cylinder to nest inside the outrigger beam profile. If a replacement cylinder has a retracted installation distance even 20\u201330mm longer than the original, it may prevent the outrigger beam from fully retracting into the transport position, which creates a road width violation in jurisdictions with strict vehicle width regulations.<\/p>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Conversely, a cylinder with a significantly shorter installation distance may not locate correctly in the mounting bracket geometry, creating bending moments at the pin eyes that the cylinder was not designed to sustain. Always verify the retracted installation distance \u2014 not just the stroke \u2014 when specifying an outrigger extension cylinder replacement.<\/p>\r\n<!-- Section 4: Stroke-to-Stability Relationship -->\r\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">How a 1,237mm Stroke Outrigger Extension Cylinder Affects Rated Crane Lift Capacity<\/h2>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Crane capacity charts (load charts) are based on outrigger spread width as one of the primary input variables. A wider outrigger spread increases the effective tipping fulcrum distance, which allows the crane to carry a heavier load at a given radius before the tipping moment is reached. The 1,237mm stroke of the HCYY11112022 directly determines how wide the outrigger beam can extend beyond the crane chassis.<\/p>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">In practice, crane operators are often required to work with partially extended outriggers when space constraints prevent full spread \u2014 in urban worksites, inside buildings, or adjacent to excavations. Each partial extension position has its own rated capacity listed in the load chart. A cylinder that cannot reach its full stroke due to seal degradation, contamination, or internal scoring effectively de-rates the crane's capacity without any visible indication to the operator. This is why regular function testing of outrigger extension cylinders \u2014 confirming full stroke is achievable under working pressure \u2014 is a standard part of crane pre-use inspection.<\/p>\r\n<!-- Section 5: Applications -->\r\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Typical Applications for Crane Stabilizer Extension Cylinders in Mobile and Truck-Mounted Cranes<\/h2>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">The HCYY11112022 is applicable across the range of mobile cranes that use H-frame or X-frame outrigger configurations. Common deployment scenarios include:<\/p>\r\n\r\n<ul style=\"padding-left: 20px; color: #333; font-size: 15px; margin: 0 0 20px 0;\">\r\n \t<li style=\"margin-bottom: 10px;\"><strong>Truck-mounted hydraulic cranes (25t\u2013160t):<\/strong> The outrigger extension cylinder is one of four identical units (or two distinct pairs for front and rear outriggers) that must deploy reliably before every lift cycle. High cycle frequency makes seal durability a top priority.<\/li>\r\n \t<li style=\"margin-bottom: 10px;\"><strong>All-terrain cranes:<\/strong> Outrigger extension in these machines occurs on uneven terrain where the beam may be partially loaded during extension, increasing the required extension force beyond theoretical calculations.<\/li>\r\n \t<li style=\"margin-bottom: 10px;\"><strong>City cranes and compact pick-and-carry cranes:<\/strong> Where outrigger spread is restricted by job site geometry, full and partial extension positions must be reliably repeatable. Seal integrity and consistent stroke are critical.<\/li>\r\n \t<li style=\"margin-bottom: 10px;\"><strong>OEM crane manufacturing:<\/strong> For crane builders sourcing outrigger system components, consistent dimensional accuracy and batch-to-batch traceability are required for production line assembly.<\/li>\r\n \t<li style=\"margin-bottom: 10px;\"><strong>Crane fleet MRO (Maintenance, Repair &amp; Overhaul):<\/strong> Replacement of cylinders with scored bores, worn rod seals, or bent rods caused by off-centre loading during beam extension in contaminated conditions.<\/li>\r\n<\/ul>\r\n<!-- Section 6: Construction Details -->\r\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Construction and Quality Standards for Long-Stroke Outrigger Extension Cylinders<\/h2>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Outrigger cylinders operate in particularly harsh conditions compared to boom lift cylinders: they are closer to the ground, exposed to road spray, mud, and debris, and typically stowed in positions where contamination can accumulate around the rod wiper seal during transit. Construction standards must address these environmental factors directly.<\/p>\r\n\r\n<div style=\"display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 28px;\">\r\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\r\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Rod Wiper Seal<\/p>\r\n<p style=\"margin: 0; font-size: 14px; color: #444;\">A heavy-duty polyurethane or NBR wiper seal is fitted at the gland exit to scrape particulate contamination from the rod surface before it reaches the primary rod seal. For outrigger cylinders exposed to mud and road debris, a double-wiper configuration is preferable and available on request.<\/p>\r\n\r\n<\/div>\r\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\r\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Chrome Rod Surface<\/p>\r\n<p style=\"margin: 0; font-size: 14px; color: #444;\">The \u03a650mm rod receives a hard chrome plating of 20\u201325\u03bcm on a polished substrate. Chrome hardness (HV 800\u20131000) resists the abrasive scoring that occurs when the rod is retracted with surface contamination present \u2014 the single most common cause of premature outrigger cylinder failure.<\/p>\r\n\r\n<\/div>\r\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\r\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Cylinder Barrel Honing<\/p>\r\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Internal bore honed to Ra 0.2\u20130.4\u03bcm. At \u03a670mm bore, maintaining roundness and cylindricity within 0.02mm tolerance along the 1,237mm cylinder length requires precision honing equipment \u2014 not achievable with basic boring operations.<\/p>\r\n\r\n<\/div>\r\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\r\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Pin Eye Design<\/p>\r\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Clevis or spherical bearing eye ends are machined and heat-treated for wear resistance at the pivot pin interface. Spherical bearing eyes allow \u00b13\u00b0 angular misalignment, accommodating the slight geometric variation that occurs as the outrigger beam extends and the cylinder angle shifts minutely.<\/p>\r\n\r\n<\/div>\r\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\r\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">External Coating<\/p>\r\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Exterior surfaces primed and topcoated with industrial epoxy. Colour can be matched to crane OEM specification. The coating system is selected for resistance to hydraulic oil, diesel, and road salt \u2014 the typical chemical exposure for vehicle-mounted crane components.<\/p>\r\n\r\n<\/div>\r\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\r\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Pressure Test<\/p>\r\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Each cylinder is tested at 30MPa (max withstand pressure) with a minimum 5-minute hold at full extension and full retraction. Both positions are tested because seal loading differs between extended and retracted configurations in long-stroke cylinders.<\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n<!-- Section 7: Ordering Guidance -->\r\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">What to Confirm When Ordering a Replacement Crane Outrigger Extension Cylinder for Your Machine<\/h2>\r\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Outrigger extension cylinders are frequently ordered as replacement parts rather than OEM first-fits. To confirm the HCYY11112022 matches your application or to specify a custom variant, the following information is required:<\/p>\r\n\r\n<ul style=\"padding-left: 20px; color: #333; font-size: 15px; margin: 0 0 20px 0;\">\r\n \t<li style=\"margin-bottom: 10px;\"><strong>Retracted installation distance:<\/strong> Measure pin-centre to pin-centre with the cylinder fully retracted. For this model it is 140mm \u2014 confirm your chassis bracket spacing matches.<\/li>\r\n \t<li style=\"margin-bottom: 10px;\"><strong>Pin bore diameter and style:<\/strong> Clevis width, pin diameter, and whether spherical bearings are used at the pin eyes. Mismatched pin geometry causes fretting and accelerated wear at the mounting interface.<\/li>\r\n \t<li style=\"margin-bottom: 10px;\"><strong>Port location and thread type:<\/strong> On outrigger extension cylinders, port location relative to the cylinder body affects hose routing inside the beam section. Confirm port position (head end \/ rod end) and thread specification (SAE, BSP, metric).<\/li>\r\n \t<li style=\"margin-bottom: 10px;\"><strong>Hydraulic fluid type:<\/strong> Standard mineral oil seals are fitted as default. If the crane uses fire-resistant hydraulic fluid, specify fluid type for alternative seal material selection.<\/li>\r\n \t<li style=\"margin-bottom: 10px;\"><strong>Crane make, model, and outrigger position:<\/strong> This allows cross-reference with known dimensional data and helps avoid specification errors before manufacturing.<\/li>\r\n<\/ul>\r\n<!-- CAD Drawing -->\r\n<div style=\"background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px; margin: 32px 0;\">\r\n<p style=\"margin: 0 0 12px 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">HCYY11112022 CAD Drawing Reference<\/p>\r\n<img style=\"width: 100%; border-radius: 4px; display: block;\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112022-Crane-Outrigger-Extension-Hydraulic-Cylinder-CAD.webp\" alt=\"HCYY11112022 crane outrigger extension hydraulic cylinder CAD technical drawing\" \/>\r\n<p style=\"margin: 12px 0 0 0; font-size: 13px; color: #666;\">Full-dimension CAD drawing available in DXF and PDF format. Contact us with your crane model and application details to receive the drawing package for dimensional verification.<\/p>\r\n\r\n<\/div>\r\n<!-- FAQ -->\r\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Frequently Asked Questions \u2014 HCYY11112022 Crane Outrigger Extension Hydraulic Cylinder<\/h2>\r\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\r\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\r\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: The outrigger beam on my crane extends slowly only on one side \u2014 is this a cylinder issue?<\/p>\r\n\r\n<\/div>\r\n<div style=\"background: #fff; padding: 14px 18px;\">\r\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Slow extension on one side with normal speed on the other usually indicates either internal bypassing (worn piston seal allowing fluid to bypass around the piston) or a partial blockage in the supply circuit to that cylinder. Internal bypassing will also cause the beam to slowly retract under gravity when the control valve is in neutral \u2014 if you observe drift, the piston seal is the likely cause. A cylinder with a scored bore (visible as longitudinal scratches) cannot be resealed reliably and should be replaced.<\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\r\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\r\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: What is the theoretical push force of this cylinder at 20MPa?<\/p>\r\n\r\n<\/div>\r\n<div style=\"background: #fff; padding: 14px 18px;\">\r\n<p style=\"margin: 0; font-size: 14px; color: #444;\">\u03a670mm bore gives an effective area of approximately 3,848 mm\u00b2. At 20MPa, theoretical push force is approximately 76.9 kN (\u22487.8 tonnes-force). Actual usable force after accounting for seal friction is typically 3\u20135% lower, approximately 73\u201374 kN. Retraction force (pull stroke) is lower due to the reduced annular area with the rod present: approximately 53 kN at 20MPa.<\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\r\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\r\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: Can we order matched pairs of cylinders for simultaneous front and rear outrigger extension?<\/p>\r\n\r\n<\/div>\r\n<div style=\"background: #fff; padding: 14px 18px;\">\r\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Yes. For applications where matched performance across multiple outrigger cylinders is important, we can supply cylinders from the same production batch with matched internal geometry tolerances. This minimises synchronisation discrepancy when the outrigger circuits are operated simultaneously from a single control valve. Specify \"matched set\" when ordering and confirm the quantity required.<\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\r\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\r\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: Is the 140mm installation distance a standard figure or application-specific?<\/p>\r\n\r\n<\/div>\r\n<div style=\"background: #fff; padding: 14px 18px;\">\r\n<p style=\"margin: 0; font-size: 14px; color: #444;\">The 140mm retracted installation distance is the designed specification for this cylinder model. Custom installation distances can be manufactured if your application requires a different retracted pin-to-pin dimension \u2014 provide your required value and we will advise on feasibility and lead time.<\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\r\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\r\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: How should the outrigger extension cylinder be maintained to maximise service life?<\/p>\r\n\r\n<\/div>\r\n<div style=\"background: #fff; padding: 14px 18px;\">\r\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Three practices have the greatest impact: (1) wipe the rod clean before retraction if the cylinder has been deployed in muddy or dusty conditions \u2014 this is the single most effective way to extend wiper and rod seal life; (2) check for any rod surface pitting or scoring at each pre-lift inspection, and address it before it progresses; (3) inspect the rod wiper seal for cracking or distortion at each periodic service interval \u2014 a degraded wiper allows abrasive contamination past the seal stack and accelerates bore wear.<\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n<!-- CTA Section -->\r\n<div id=\"contact-cta\" style=\"background: linear-gradient(135deg, #0d2d52 0%, #1a5fa8 100%); color: #fff; border-radius: 8px; padding: 36px 32px; margin: 48px 0 32px 0; text-align: center;\">\r\n<p style=\"font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; margin: 0 0 10px 0; opacity: 0.8;\">B2B Procurement &amp; OEM Supply<\/p>\r\n\r\n<h2 style=\"font-size: 26px; font-weight: bold; color: #fff; margin: 0 0 16px 0; border: none; padding: 0;\">Ready to Order or Verify Fit for the HCYY11112022?<\/h2>\r\n<p style=\"font-size: 15px; opacity: 0.9; max-width: 620px; margin: 0 auto 28px auto; line-height: 1.7;\">Share your crane make and model, the retracted installation distance of your existing cylinder, and your required quantity. We will confirm dimensional compatibility, supply a CAD drawing for engineering review, and issue a formal quotation within 24\u201348 business hours.<\/p>\r\n\r\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;\"><a style=\"display: inline-block; background: #fff; color: #0d2d52; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: bold; font-size: 15px;\" href=\"mailto:sales@metalite.net\">Request a Quote<\/a>\r\n<a style=\"display: inline-block; background: transparent; color: #fff; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: 600; font-size: 15px; border: 2px solid rgba(255,255,255,0.6);\" href=\"#contacts\">Request CAD Drawing<\/a>\r\n<a style=\"display: inline-block; background: transparent; color: #fff; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: 600; font-size: 15px; border: 2px solid rgba(255,255,255,0.6);\" href=\"\/contact\/\">Bulk Order Enquiry<\/a><\/div>\r\n<\/div>\r\n<\/div>","_et_gb_content_width":""},"product_brand":[],"product_cat":[106,103,21],"product_tag":[],"class_list":["post-1775","product","type-product","status-publish","has-post-thumbnail","product_cat-crane-hydraulic-cylinder","product_cat-engineering-vehicles-hydraulic-cylinders","product_cat-hydraulic-cylinders","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/product\/1775","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/media\/1752"}],"wp:attachment":[{"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/media?parent=1775"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/product_brand?post=1775"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/product_cat?post=1775"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/product_tag?post=1775"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}