{"id":1727,"date":"2026-09-04T09:55:26","date_gmt":"2026-09-04T09:55:26","guid":{"rendered":"https:\/\/metalite.net\/?post_type=product&p=1727"},"modified":"2026-09-04T10:00:07","modified_gmt":"2026-09-04T10:00:07","slug":"1727","status":"publish","type":"product","link":"https:\/\/metalite.net\/ko\/product\/1727\/","title":{"rendered":"Boom Lift Hydraulic Cylinder for Aerial Work Platforms \u2014 HCYY11112003 | \u03a665\u00d7\u03a645\u00d7840, 18 MPa"},"content":{"rendered":"
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\n \"HCYY11112003\n <\/div>\n

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\n HCYY11112003 \u2014 Boom Lift Hydraulic Cylinder for Aerial Work Platforms
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\n The HCYY11112003 boom lift hydraulic cylinder<\/strong> is engineered as a high-performance lifting cylinder purpose-built for aerial work platforms and boom-type elevated work equipment. With an 840 mm stroke and a 65 mm bore operating at 18 MPa, this cylinder delivers the sustained vertical thrust that modern MEWPs demand \u2014 from compact trailer-mounted lifts to truck-mounted aerial platforms working at height in construction, utilities, and industrial maintenance environments.\n <\/p>\n

\n Unlike generic hydraulic cylinders adapted for aerial applications, the HCYY11112003 is dimensioned from the ground up for the mechanical demands of boom-type elevation: long-stroke smooth extension, precise retraction control, and the structural rigidity to maintain platform stability when operators are working at full extension. The 1075 mm installation distance ensures a clean fit within the boom linkage geometry of standard aerial work platform designs.\n <\/p>\n

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\n \"HCYY11112003
\n \"HCYY11112003\n <\/div>\n

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\n Technical Specifications: Aerial Work Platform Lift Cylinder 840 mm Stroke
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\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\nEngineering Relevance<\/th>\n<\/tr>\n<\/thead>\n
Cylinder Model<\/td>\nHCYY11112003<\/td>\nUnique part number for OEM\/MRO sourcing<\/td>\n<\/tr>\n
Specifications<\/td>\n\u03a665 \u00d7 \u03a645 \u00d7 840<\/td>\nBore \u00d865 mm \/ Rod \u00d845 mm \/ Stroke 840 mm<\/td>\n<\/tr>\n
Working Pressure<\/td>\n18 MPa<\/td>\nStandard aerial platform hydraulic circuit pressure<\/td>\n<\/tr>\n
Maximum Withstand Pressure<\/td>\n27 MPa<\/td>\n50% safety margin above working pressure<\/td>\n<\/tr>\n
Stroke<\/td>\n840 mm<\/td>\nFull extension range for boom elevation<\/td>\n<\/tr>\n
Installation Distance<\/td>\n1075 mm<\/td>\nPin-to-pin mounting length (retracted)<\/td>\n<\/tr>\n
Weight<\/td>\n27 kg<\/td>\nBalanced weight for standard boom linkage load calculations<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

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\n \"Hydraulic<\/p>\n

Installation position reference diagram \u2014 Boom Lift & Aerial Work Platform hydraulic cylinder layout<\/p>\n<\/p><\/div>\n

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\n Why the 65 mm Bore and 840 mm Stroke Matter for Boom Lift Performance
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\n In aerial work platform hydraulics, the bore diameter is the primary driver of output force. At 18 MPa working pressure, a \u00d865 mm bore produces approximately 59.6 kN of extension force<\/strong> \u2014 enough to reliably lift a loaded work platform basket through the full boom arc without pressure spikes that would trigger relief valves.\n <\/p>\n

\n The 840 mm stroke translates directly to the angular range the boom can travel. Boom lift engineers sizing replacement cylinders need to match stroke length precisely: too short and the boom cannot reach rated working height; too long and it binds against the mechanical stops. The HCYY11112003’s stroke is matched to platforms in the 10\u201316 meter working height class where this cylinder geometry is most commonly deployed.\n <\/p>\n

\n The \u00d845 mm rod diameter gives the cylinder a rod-to-bore ratio of ~0.69, which is well above the minimum needed for column stability (buckling resistance) on a fully extended stroke. For boom cylinders operating under combined tension and compression during boom lowering and load-holding, this ratio ensures long service life without rod deflection.\n <\/p>\n

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\n Compatible Applications: OEM Replacement for Aerial Work Platform Lifting Cylinders
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  • Boom-type aerial work platforms (AWPs)<\/strong> \u2014 single-arm and telescopic boom configurations requiring a primary or secondary lift cylinder in the 840 mm stroke range.<\/li>\n
  • Self-propelled boom lifts<\/strong> \u2014 both diesel and electric drive platforms where the lifting cylinder operates in a closed hydraulic circuit at 18 MPa nominal.<\/li>\n
  • Truck-mounted elevated work platforms<\/strong> \u2014 applications where installation distance precision (1075 mm) is critical to maintaining the original boom geometry and platform leveling system alignment.<\/li>\n
  • Trailer-mounted aerial lifts<\/strong> \u2014 replacement for worn or damaged OEM lifting cylinders on mast-boom combination platforms.<\/li>\n
  • Custom MEWP engineering<\/strong> \u2014 OEM manufacturers specifying a proven, production-ready lifting cylinder for new platform designs in the 10\u201316 m working height range.<\/li>\n<\/ul>\n

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    \n Engineering Construction and Sealing System
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    \n The HCYY11112003 uses a welded or threaded-head cylinder construction (confirmed per application drawing on request), with a chrome-plated \u00d845 mm piston rod that meets surface hardness and finish requirements for low-friction seal operation. Chrome plating depth is verified to withstand the side-loading inherent in boom-pivot cylinder mounting configurations.\n <\/p>\n

    \n The seal package is rated for the full 18 MPa working pressure with zero internal bypass at static load-hold \u2014 critical for boom lifts, where the cylinder must hold platform position under rated load without hydraulic drift. Seal materials are compatible with standard HLP hydraulic mineral oil as well as biodegradable HEES ester fluids for environmentally sensitive work sites.\n <\/p>\n

    \n The 27 MPa maximum withstand pressure gives the cylinder a 1.5:1 safety factor above working pressure \u2014 meeting the hydraulic safety requirements common to EN 280 (Mobile Elevating Work Platforms) and ANSI A92 series standards for aerial work equipment.\n <\/p>\n

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    \n Quality Assurance and Testing for 18 MPa Boom Lift Hydraulic Cylinders
    \n <\/h2>\n

    \n Every HCYY11112003 cylinder undergoes pressure testing at a minimum of 1.5\u00d7 working pressure (27 MPa) before dispatch. Testing includes:\n <\/p>\n

      \n
    • Hydrostatic proof test<\/strong> at 27 MPa for minimum 30 seconds \u2014 no visible distortion, weld cracking, or seal leakage permitted.<\/li>\n
    • Stroke function test<\/strong> \u2014 full extension and retraction to verify smooth travel without stick-slip or mechanical interference.<\/li>\n
    • Internal leakage test<\/strong> \u2014 piston bypass measured with rod at mid-stroke under full load pressure; must be below the application tolerance for platform drift compliance.<\/li>\n
    • Dimensional verification<\/strong> \u2014 bore, stroke, installation distance, and port thread checked against drawing tolerances before packing.<\/li>\n<\/ul>\n

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      \n Installation Notes for Maintenance and Engineering Teams
      \n <\/h2>\n

      \n When replacing a lifting cylinder on a boom lift, verify the pin bore diameter and pin-to-pin centerline distance against the 1075 mm installation distance of the HCYY11112003. Port connections should be matched to the existing hose fitting sizes \u2014 contact us to confirm available port configurations (BSP, NPT, or metric) for your specific platform.\n <\/p>\n

      \n Purge air from the cylinder before returning the platform to service. With the platform at full retraction, cycle the cylinder through 3\u20135 full strokes at low pressure before bringing the system to rated working pressure. This seats the seals and evacuates any trapped air that could cause spongy or inconsistent lift behavior.\n <\/p>\n

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      \n Request a Quote or Technical Drawing for HCYY11112003
      \n <\/h2>\n

      \n We supply boom lift hydraulic cylinders to aerial work platform manufacturers, equipment distributors, and maintenance fleets worldwide. Whether you need a single replacement cylinder or a production volume for OEM assembly, our engineering team can confirm fitment, provide certified drawings, and offer bulk pricing.\n <\/p>\n

        \n
      • OEM and aftermarket supply available<\/li>\n
      • Custom port configurations on request<\/li>\n
      • Material certifications and test reports available<\/li>\n
      • Bulk order lead times confirmed at inquiry stage<\/li>\n<\/ul>\n

        \n Contact us now to submit your RFQ \u2014 include your platform model, annual volume, and required delivery schedule for the fastest response.\n <\/p>\n<\/p><\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

        HCYY11112003 boom lift hydraulic cylinder: \u03a665 bore, 840mm stroke, 18MPa working pressure, 1075mm installation distance. OEM-grade lifting cylinder for aerial work platforms. Request technical drawings and bulk pricing.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[103,104],"product_tag":[],"class_list":["post-1727","product","type-product","status-publish","product_cat-construction-hydraulic-cylinders","product_cat-boom-lift-hydraulic-cylinder","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/product\/1727","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:attachment":[{"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/media?parent=1727"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/product_brand?post=1727"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/product_cat?post=1727"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/metalite.net\/ko\/wp-json\/wp\/v2\/product_tag?post=1727"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}