562-22-50200 / 562-22-50300 Final Drive Assembly for Komatsu HD1500-8

The 562-22-50200 and 562-22-50230 Final Drive Units are heavy-duty planetary reduction assemblies engineered for the Komatsu HD1500-8 rigid frame dump truck, operating in the 140-150 ton payload class. These units integrate a high-torque hydraulic drive motor with a robust multi-stage planetary gear train housed in a thick-wall ductile iron casing, delivering reliable wheel-end propulsion and controlled retardation for severe mining haul cycle demands.

Komatsu HD1500-8 dump trucks operate across diverse mining environments, and our final drives are tailored to suit specific regional challenges:

• Chile & Peru High-Altitude Mines: Equipped with specialized seal compounds and modified breather ports to prevent pressure differential failures at elevations exceeding 4,000 meters
• Australia Hard Rock Operations: Features induction-hardened raceways and high-capacity tapered roller bearings to endure sustained high-speed loaded runs on rough haul roads
• Indonesia & Brazil Tropical Mining: Incorporates corrosion-resistant housing treatments and upgraded dual-cone seals to resist moisture ingress and acidic mud exposure in wet-season conditions

• Optimized Gear Geometry: Precision-ground planetary gears with profile modifications distribute load evenly across tooth surfaces, minimizing stress concentrations and extending operational life under fluctuating torque loads
• Direct Retrofit Compatibility: All mounting pilot diameters, bolt patterns, and hydraulic port orientations replicate original Komatsu specifications for a true bolt-on replacement with zero modifications required
• Superior Heat Dissipation: Internal oil distribution channels and a scalloped outer housing design promote efficient heat rejection during continuous high-load hauling, maintaining optimal oil viscosity and component protection
• Reinforced Planet Carrier Assembly: One-piece cast planet carrier with integrated pinion supports resists deflection and ensures consistent gear mesh alignment under peak torque conditions

• Case Drain Line Integrity: Verify the motor case drain line is routed independently with minimal back pressure. Elevated case pressure will accelerate shaft seal wear. Inspect return line filters every 250 hours and analyze oil samples for copper, iron, and silicon content.
• Gear Oil Replacement Schedule: Change final drive gear oil every 500 operating hours or semi-annually. Use extreme pressure gear oil SAE 80W-140. Examine drained oil for metallic particles and drain plug magnets for debris accumulation indicating bearing or gear distress.
• Wheel Mounting Hardware Care: Always install new mounting bolts and washers upon reassembly. Apply molybdenum disulfide anti-seize compound to bolt threads and tighten in a star pattern to the specified torque of 1,750 ± 100 N*m.
• System Priming and Air Purge: Before first operation after installation or overhaul, fill the motor housing completely with clean hydraulic oil through the uppermost port. Slowly rotate the drive unit manually to expel trapped air pockets, then operate at low RPM for several minutes before applying full load to prevent cavitation damage.

Guangzhou Tieqi Construction Machinery Co., Ltd. (IRON CAVALRY) is strategically located in Guangzhou's Huangpu District. With nearly 15 years of experience, we specialize in engineering machinery hydraulics and are committed to delivering practical solutions and upholding our responsibilities.

Our efficient execution and rigorous manufacturing approach ensure our products meet over 95% of original performance specifications. This commitment has built widespread trust in the industry.

We maintain a ready inventory of over 500 assembly types, providing access to more than 6,000 different parts. Hydraulic pump, control valve, travel, and swing assemblies are our core products, with particular expertise in large mining excavator components and hard-to-find items.

For large items, we use sturdy plywood crates secured with metal fasteners. Products are cushioned with bubble wrap and secured with wooden braces, with special attention given to protecting vulnerable parts. External reinforcement includes high-strength PET plastic strapping and waterproof wrapping.

• One-stop solution provider for all hydraulic component needs
• High-quality products at competitive prices
• Exceptional customer service and support
• Large inventory, short delivery times, and long warranty periods
• Professional expertise with accurate part number identification