Slewing Mechanism
Delivers high torque output and minimal backlash for smooth 360-degree boom rotation and precise load holding.
Heavy Crane Transmission Series
High-torque planetary transmission drives custom-engineered for mobile and crawler crane slewing, hoisting, and travel mechanisms. Built to withstand continuous shock loads, harsh outdoor weather, and severe dynamic duty cycles, our gearboxes deliver exceptional torque density and precise positioning control for lifting capacities ranging from 10 to 300+ tons.
Each unit features carburized high-strength alloy gearing, heavy-duty spherical roller bearings, and integrated multi-disc fail-safe hydraulic brakes to eliminate boom drift and cable slipping. Designed with standardized SAE and DIN mounting flanges for seamless integration with variable displacement hydraulic motors — supported by full 2D/3D CAD engineering and 100% pre-delivery load testing.
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View Winch Series >>Winch Reducer
Engineered with high-density planetary gearing and integrated multi-disc wet brakes for steady, smooth load hoisting.
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Planetary Gear Winch
Features a dynamic free-fall function designed for high-efficiency pile driving, duty-cycle clamshell, and rapid lowering tasks.
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Crawler Travel Reducer
Heavy-duty planetary travel drives built to withstand severe ground impact, mud, and continuous tracking torque.
Heavy-Duty Gearboxes for Crawler Cranes
Engineered for continuous heavy lifting and rough-terrain tracking. Features 20CrMnTi alloy planetary gearing and multi-disc hydraulic brakes to ensure steady 360° rotation and zero load drift.
Compact Reducers for Light & Medium Truck Cranes
High power-density planetary drives designed for compact mounting spaces. Offers fast line speeds, smooth hoisting control, and direct OEM mounting compatibility.
High-Torque Drives for Heavy-Duty Mobile Cranes
Built for high-tonnage mobile cranes operating under peak shock loads. Every unit undergoes 100% pre-delivery static torque and hydraulic seal leakage inspection to eliminate field downtime.
What Our Customers Say
Proven reliability in truck crane and crawler crane transmission applications worldwide.
Field-Tested Precision for Crawler Crane Duty Cycles
Watch our hoist and travel reducers in real-world crawler crane operations. Engineered with multi-axis CNC machining, carburized alloy steel (20CrMnTi), and integrated wet braking, ZHIHE planetary drives deliver whisper-quiet mesh accuracy, high shock resistance, and 100% pre-tested hoisting reliability under severe lifting conditions.
Diverse Crane Applications & Equipment Integration
Crawler Cranes (Lattice Boom)
Heavy-duty slew drives and hydraulic track travel gearboxes
All-Terrain & Mobile Cranes
High-speed hydraulic hoist winches and precision slewing reducers
Foundation & Heavy-Duty Crawler Units
Continuous duty cycle drives designed for severe shock loads
Telescopic Truck Cranes
Compact planetary solutions with dynamic multi-disc wet brakes
Frequently Asked Questions
Crane reducers (gearboxes) convert high-speed hydraulic motor power into high output torque across three critical mechanisms:
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Slewing Gearbox: Deliver smooth, drift-free 360° boom and superstructure rotation;
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Hoist Winches: Provide accurate, fail-safe load lifting and lowering with zero slippage;
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Travel Reducer: Ensure powerful track or chassis traction for rough-terrain mobility.
Built-in multi-disc wet brakes guarantee absolute holding safety under heavy dynamic duty cycles.
Key selection factors include rated lifting capacity (from 10T to 300+ tons), maximum dynamic output torque, and required line pull or swing speeds. Mounting patterns must align with standard SAE/DIN hydraulic motor flanges. ZHIHE provides tailored ratio calculations, spline design, and 2D/3D CAD drawings to ensure smooth OEM chassis integration.
Perform the initial gear oil change after 100 operating hours, followed by routine fluid service every 1,000 to 2,000 hours using extreme-pressure (EP) industrial lubricants.
Inspect radial shaft and mechanical face seals regularly to prevent abrasive dust ingress.Periodically verify the hydraulic opening pressure of the integrated wet brake to prevent overheating.
Yes. ZHIHE specializes in custom planetary gear engineering as well as drop-in aftermarket replacements for international crane equipment.
We configure custom gear reduction ratios, specialized housing dimensions, output pinions, and custom mounting flanges to fit specific boom and chassis configurations.
All units undergo 100% pre-delivery load testing.
