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2120272
CAT
2120272
This Hydraulic Motor is a core power output component designed for the travel mechanisms or slewing mechanisms of heavy-duty tracked construction machinery, including excavators, loaders, and bulldozers. As the executive terminal of the hydraulic system, it efficiently converts hydraulic energy into mechanical energy, providing stable and robust torque and speed for equipment actions such as traveling and slewing. It ensures reliable operation under heavy-duty and harsh working conditions, such as those found in mining and construction sites.
High-Strength Cast Iron Housing:
The motor housing is precision-cast from high-strength cast iron with a dense, defect-free internal structure. This material offers excellent compressive strength and rigidity, enabling it to withstand high-frequency pressure shocks from the hydraulic system and alternating loads during equipment start-stop cycles. This ensures the housing remains deformation-free and crack-free under long-term heavy loads, maintaining precise alignment of internal components.
Premium Alloy Steel Core Components:
Critical moving parts, including the rotor, valve plate, and output shaft, are manufactured from high-quality alloy steel. They undergo multiple heat treatment processes—including forging, quenching, tempering, and high-frequency quenching—to achieve high surface hardness while retaining a tough core. This "hard shell, tough core" structure provides exceptional wear resistance and fatigue strength, allowing the motor to endure prolonged wear and impact under high-pressure, high-speed conditions.
Precision Grinding & Optimized Design:
Key mating surfaces, such as journals and flow channels, are precision ground and polished to achieve high dimensional accuracy and low surface roughness. The rationally designed fit clearances effectively reduce internal friction resistance, enhancing hydraulic transmission efficiency and reducing energy consumption (fuel savings), while minimizing system failures caused by frictional overheating.
Integrated High-Pressure Sealing System:
The motor integrates high-quality, pressure-resistant oil seals and sealing rings with excellent tolerance to hydraulic oil and strong anti-aging properties. This effectively prevents internal and external leakage of high-pressure oil, ensuring stable system pressure, improving action precision and controllability, and significantly reducing hydraulic oil consumption and maintenance frequency.
Black Anti-Corrosion Coating:
The exterior surface is treated with black anti-corrosion spray paint, offering strong adhesion, weather resistance, and corrosion protection. It effectively resists moisture, mud, and chemical media in mining environments, preventing housing corrosion and ensuring long-term service performance.
Standard Fit – Direct Replacement:
Mounting flanges, shaft diameters, port sizes, and bolt hole patterns conform to industry-standard specifications. This allows for a direct replacement without requiring on-site drilling, hose modifications, or bracket adjustments, drastically shortening repair time and reducing downtime costs.
Parameter | Specification |
|---|---|
Product Type | Travel Hydraulic Motor / Slew Hydraulic Motor |
Housing Material | High-Strength Cast Iron |
Core Component Material | Premium Alloy Steel (Heat Treated) |
Surface Treatment | Black Anti-Corrosion Paint |
Key Process | Precision Grinding (Journals / Valve Surfaces) |
Key Properties | High Torque, High Efficiency, Pressure Resistant, Long Life |
Travel Drive: Final drive motors for crawler excavators, bulldozers, and rotary drilling rigs.
Slew Drive: Input motors for the swing reduction units of excavators and cranes.
Winch Systems: Hoisting and luffing motors for crawler cranes and foundation machinery.
Industrial Equipment: Hydraulic drive units for heavy conveyors and mining crushers.
We strictly adhere to manufacturing standards for heavy-duty hydraulic components. Every motor undergoes rigorous bench testing for performance and pressure endurance before dispatch to ensure qualified flow, pressure, torque, and speed metrics, with zero leakage or abnormal noise. We are committed to providing robust and reliable power solutions for equipment maintenance in mining, construction, and water conservancy.
Installation Recommendation:
Thoroughly clean hydraulic line ports before installation to prevent welding slag or debris from entering the motor. Ensure proper clearance in couplings or gear meshes to avoid radial loads acting directly on the motor shaft. Before initial startup, bleed all air from the hydraulic system to prevent cavitation damage to the valve plate.
