HD820 Swing Motor Hydraulic Slew Drive Assy + Planetary Gearbox Spare Parts for Kato Excavator Planet Carrier Assy HD820 Swing Motor Hydraulic

HD820 slew motor assembly is a heavy-duty hydraulic rotary drive unit engineered exclusively for Kato HD820 crawler excavator. Built with axial piston motor paired with heavy-load planetary reduction gearbox, integrated counterbalance valve and spring-applied parking brake. It transfers hydraulic energy into high torque rotation to swing the upper carriage 360 degrees. Ideal aftermarket replacement component for field overhaul and equipment maintenance.

Advantages

1. 1. Heavy Load High Torque Performance Customized piston motor structure, robust torque output, strong overload resistance. Reliable performance under heavy digging, rock handling and long-hour continuous operation.
   2. Built-in Safety Brake & Anti-Slip Control Spring engaged, hydraulically released parking brake. Auto lock when hydraulic signal cuts off, prevents upper structure sliding on slope. Soft start & stop, minimizes impact shock to the whole machine.
   3. Rugged Build & Premium Sealing System High tensile cast housing, carburized & hardened planetary gears, high quality sealing components. Low internal leakage, extended service life, stable performance in dusty, muddy, wet construction environments.
   4. Drop-in Aftermarket Replacement Matches original mounting dimension of Kato HD820. Direct fit without machining modification, cuts down machine downtime and repair cost.
   5. Full Factory Quality Inspection Every unit undergoes hydraulic pressure testing before packing. Test records and inspection videos can be provided upon request.