Heavy-Duty Final Drives & Swing Drives for Mining Excavators

Product Description

Yile Machinery is an expert manufacturer of high-torque planetary gearboxes designed for the demanding applications of excavator final drives (travel motors) and swing drives. We produce complete, fully assembled gearbox units that serve as direct OEM replacements or high-quality aftermarket solutions for a wide range of mining and construction excavators.

Our gearboxes are engineered to deliver reliable power and withstand the extreme shock loads and continuous duty cycles found in mining, quarrying, and heavy construction environments.

The Powerhouse of Your Excavator's Movement

The final drive and swing drive are the critical components that convert hydraulic power into mechanical motion.

  • Final Drive / Travel Motor: This planetary gearbox assembly provides the high torque and low speed required to propel the excavator's tracks, enabling powerful and precise movement across rugged terrain.

  • Swing Drive / Swing Motor: This unit powers the rotation of the excavator's upper structure (the house) on its undercarriage, allowing for efficient digging, loading, and material placement.

Engineering & Manufacturing Excellence

Every gearbox we produce is built for maximum durability and performance. We control the entire manufacturing process, from raw material to final testing.

1. Advanced Planetary Gear Design

  • Our gearboxes utilize a multi-stage planetary gear system, which is the industry standard for its ability to handle immense torque within a compact design.

  • Gears are precision-cut from high-strength, case-hardened alloy steels (e.g., 20CrMnTi) for exceptional wear resistance and load-bearing capacity.

2. Precision Machining & Assembly

  • All components, including the main housing, carriers, and shafts, are precision-machined on CNC equipment to ensure perfect alignment and interchangeability.

  • Gear teeth are finished using gear shaping, hobbing, and grinding processes to achieve a smooth, quiet, and efficient power transmission.

  • Units are assembled in a clean environment and fitted with high-quality bearings and seals to prevent contamination and ensure a long service life.

3. Rigorous Quality Assurance & Testing

  • Before shipment, each final drive and swing drive assembly undergoes comprehensive testing to verify performance under simulated load conditions.

  • We check for proper gear meshing, torque output, and operational smoothness to guarantee the unit is ready for immediate installation and reliable service.

OEM & Aftermarket Solutions for Major Brands

We have the capability to manufacture final drives and swing drives that are compatible with excavators from all major manufacturers. Whether you need a direct replacement part identified by a part number or require a custom-engineered solution, we are your trusted manufacturing partner.

  • Excavators

  • Bulldozers

  • Drill Rigs

  • Other Tracked Heavy Machinery


Get a Quote for Your Gearbox Needs

Contact us with your machine model, original part number, or technical drawings. Our engineering team can provide a competitive quote for a high-performance final drive or swing drive built to meet or exceed OEM specifications.


Contact us

Custom Integral Pinion Shafts – Forged, Hardened, and Precision Ground

Custom Helical Gears for High-Torque Industrial Applications

Custom Worm Gear Sets

Large Custom High Torque Reduction Gear Box

High Series Shaft Mounted Gearbox Driving Unit

Chinese Supplier Reducer Mining Excavator Mechanical Gearbox Cylindrical Gear Reducer

Custom Fabricated Housings for Speed Reducers & Transmissions

Custom Steel & Iron Castings via the Lost Foam Process

Custom Fabricated Steel Housings for Gearboxes & Heavy Machinery

Custom Heavy-Duty Bevel Gearboxes for Industrial Applications

Heavy-Duty Excavator Track Rollers (Bottom Rollers)

Grade 80 & Grade 100 Alloy Steel Master Link Assemblies

Heavy-Duty Hydraulic Cylinders for Mining & Construction Equipment

Custom Steel Castings for OEM & Heavy Equipment

High Manganese Steel Castings for Extreme Wear & Impact

Custom Steel Casting Services for Heavy-Duty Applications

Custom Closed Die Forging Services

Heavy-Duty & Large-Bore Hydraulic Cylinders

Heavy-Duty Forged Steel Track Wheels for Mining & Bulk Handling

Heavy-Duty Brake Drum Couplings for Power Transmission and Safety Braking