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Aquaculture & Fishing Industry \u00b7 Winch Drive Engineering<\/p>\n
Right Angle Planetary Gearbox for Aquaculture Feeding Winches and Fishing Vessel Haulers<\/h2>\n
Aquaculture and commercial fishing winch drives occupy a niche where moderate torque, corrosion resistance, and operational reliability matter far more than peak power output. This article examines the specific mechanical requirements of feeding system winches, net haulers, and cage-lifting drives \u2014 and why a compact right angle planetary gearbox outperforms conventional drives in these applications.<\/p>\n<\/div>\n
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NB300R Series right angle gearbox on a salmon farm feeding barge winch \u2014 3,500 Nm, electric motor input, stainless output shaft<\/p>\n<\/div>\n<\/div>\n
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Aquaculture Winch Loads: Smaller Than Marine but Just as Demanding<\/h2>\n
Aquaculture winch drives occupy a torque range of 1,000\u201312,500 Nm \u2014 modest by offshore standards, but the duty cycle and environmental demands are equally challenging. A salmon farm feeding barge may run its feed-distribution winch 8\u201312 hours per day, 300+ days per year, with constant exposure to seawater, fish slurry, and cleaning chemicals (typically sodium hypochlorite at 200\u2013500 ppm).<\/p>\n
Net-hauling winches on tuna or cod farms operate at lower frequency but significantly higher peak loads \u2014 lifting a full net pen containing 50\u2013150 tonnes of fish imposes torque spikes on the drum drive during the initial lift phase that can reach 3\u20134\u00d7 the steady-state hauling torque. The gearbox must handle this without the benefit of a torque-limiting clutch in most farm installations.<\/p>\n
Three characteristics define the ideal gearbox for aquaculture service: corrosion resistance<\/strong> across the full housing and external fastener set; shock load tolerance<\/strong> for net-hauling and feeding drum engagement events; and low maintenance frequency<\/strong>, because most aquaculture sites have limited access to qualified mechanical technicians between seasonal service visits.<\/p>\n <\/p>\n Related application:<\/strong> For high-torque dredging and aquaculture pulling applications, see our technical reference on <\/p>\n Aquaculture winch gearbox selection follows the same torque-at-drum calculation used for marine winches, but with two adjustments specific to fish farming: a higher service factor for chemical exposure (1.15\u20131.25 over the standard marine factor), and a corrosion allowance that requires either stainless steel output shaft options or protective plating on standard steel shafts.<\/p>\n
\nmarine winch gearbox for aquaculture and dredging<\/a> \u2014 including wire rope sizing, drum geometry, and gearbox selection for subsea line pull up to 500 kN.<\/p>\n<\/div>\nSelecting the Correct Frame for Aquaculture and Fishing Winch Drives<\/h2>\n