Hardened-Gear Reducer (helical gear, heavy-duty unit) Alloy-steel helical gears, multi-stage meshing; cast-iron housing, hardened and ground gears.

Input and output shafts arranged in parallel; grain conveyors commonly use ZLY/ZSY/R/F/K series hardened-tooth-surface reducers.

High-capacity main belt conveyors, long-distance, horizontal corn conveying, 24-hour continuous operation; main receiving and storage lines with belt widths 650–1200mm and capacities 80–500 t/h.

High transmission efficiency of 94%–97%, power-saving in continuous operation, suited to long uninterrupted production.

Impact- and heavy-load resistant, long service life (design life ≥ 30,000 hours), highly reliable in dusty environments.

Wide power range: 2–200 kW, the first choice for high-flow corn conveying. Good heat dissipation and low temperature rise, suited to continuous starch-plant production.

Common grain-industry ratios: 16–50; protection rating IP55; splash lubrication with industrial gear oil.worm gear reducer Worm (hardened alloy steel) + worm wheel (tin bronze).

With perpendicular shafts at 90°; housing of aluminum alloy or cast iron; commonly NMRV and WP series for grain conveying.

Small- and medium-sized belt conveyors, inclined feeding conveyors, auxiliary feeding conveyors, and small loading conveyors.

Power generally ≤ 15 kW. Built-in reverse self-locking holds the pulley stationary at standstill stop material back-slide on inclined conveyors.

And may remove the need for a separate brake. Compact, small, flexible installation—flange or foot-mounted. Low noise, economical.

Common grain-industry ratios: 20–80; suited to intermittent, low-to-medium capacity, inclined corn conveying.