440-6947 430-4192 433-4448 Final Drive for TQCaterpillar 6015 & 6015B | Heavy-Duty Mining Travel Reducer

The Final Drive Assembly (P/N 440-6947, 430-4192, & 433-4448) is the high-torque mechanical heart engineered for the TQCaterpillar 6015 and 6015B hydraulic mining shovels. Designed for the 140-ton class, this multi-stage planetary gearbox is built to withstand the staggering drawbar pull required for high-volume overburden removal and bulk excavation in the world's most demanding pit environments.

Maximum Tractive Effort for Ultra-Class Production Moving a 140-ton "giant" like the TQCaterpillar 6015B requires more than just hydraulic flow; it requires a gearbox capable of multiplying torque to extreme levels. The 440-6947 / 433-4448 Final Drive is precision-engineered to bridge the gap between the machine's power and the ground. It ensures synchronized tracking and powerful climbing ability, even on steep pit ramps or through deep, abrasive muck.

In a mining environment, a gearbox isn't just a part—it's a critical asset. Our premium units are manufactured to resist the extreme shock loads of heavy digging. By using induction-hardened gears and high-load bearings, this assembly prevents the internal overheating and metal spalling that typically lead to catastrophic failure. Replacing your worn drive with our precision-engineered unit restores factory-standard speed and minimizes the cost-per-ton of your operation.

• The Cat 6015 series is a staple in high-production mines globally. Our drives are optimized for these specific conditions:

  • North America & Australia: Built for the 24/7 high-uptime requirements of the Canadian Oil Sands and the Pilbara. These units handle high duty cycles with ease.

  • CIS Regions (Russia, Kazakhstan): Features metallurgical properties that maintain structural ductility in sub-zero temperatures, preventing housing cracks during high-torque cold starts.

  • South America (Chile, Peru): Equipped with high-altitude resilient seals to prevent oil thinning and maintain lubrication integrity in deep-pit copper and gold mines.

  • Africa & Middle East: Optimized for maximum heat dissipation, ensuring gear oil remains within the correct viscosity range in high-ambient desert environments.

  
  

For a 140-ton excavator, maintenance is the only insurance against a $100,000+ downtime event:

• S.O.S. (Scheduled Oil Sampling): Regularly sample the gear oil for iron, copper, and silicon. Spikes in these levels indicate internal wear that, if caught early, can save the entire 430-4192 planetary set.

• Magnetic Plug "Forensics": Clean and inspect the magnetic drain plugs at every service. Fine metallic "fuzz" is normal wear; distinct flakes or chunks mean a gear tooth or bearing is failing—stop operation immediately.

• Case Drain Line Check: Before installing the new travel motor portion, ensure the case drain line is clear. A blocked line will blow the shaft seal of a new motor within minutes of startup.

• Sprocket Bolt Torque: High-torque mining operations can stretch bolts beyond their limit. Always use new Grade 10.9 or 12.9 bolts and follow the specific multi-stage torque specs.

Guangzhou Tieqi Construction Machinery Co., Ltd. (IRON CAVALRY) is strategically located in Guangzhou's Huangpu District, approximately an hour from Baiyun International Airport. We have been a dedicated specialist in engineering machinery hydraulics for nearly 15 years.

Driven by our core values of "Pragmatism and Progress," we are committed to delivering practical solutions and upholding our responsibilities. This principle-driven approach defines all our operations and client partnerships.

In China's excavator hydraulic assembly sector, our efficient execution and rigorous approach to manufacturing every product to meet over 95% of original performance specifications have built widespread trust. This has made us a destination for industry peers and clients seeking knowledge and reliable supply.

Our capability is backed by 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 a distinct advantage in large mining excavator components and hard-to-find items.

Our 4,000-square-meter factory in Guangzhou is equipped for professional manufacturing, precision assembly, rigorous testing, and quality certification, ensuring reliable performance and timely delivery for every order.

For large items, we use sturdy plywood crates secured with metal fasteners for added stability. Inside, the products are cushioned with bubble wrap and secured with wooden braces, while special attention is given to protecting vulnerable parts. Externally, the crates are reinforced with high-strength PET plastic strapping and wrapped in highly waterproof black film.

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