Parker TG Series Hydraulic Motor | TG0475 TG0625 Motor Replacement

Genlu Hydraulic proudly introduces our precision-engineered TG Series low-speed, high-torque (LSHT) hydraulic motors, the ultimate power solution for heavy-duty travel and industrial rotary drive applications. This series serves as a precise match for Parker TG technical specifications, encompassing models including TG0475, TG0625, and complex configurations such as TG0530MS851AAAA, TG0625EW440AAAB, TG0625HV450AAAB, TG0625MV460AAAB, and TG0475US030AAAB. Genlu unequivocally guarantees 100% Drop-in Interchangeability in mounting flanges, output shafts (splined/keyed), port configurations, and internal flow characteristics. Backed by our uncompromising 100% Simulation Load Testing, each motor is validated for volumetric efficiency, startup torque performance, and extreme load durability before dispatch, ensuring relentless, stable, and high-performance power delivery for your heavy-duty hydraulic circuits.

Technical Specifications 

• Product Series: Parker TG Series LSHT Gerotor Hydraulic Motor

• Representative Models: TG0475, TG0625 (including custom configurations)

• Displacement Range: 475 cc/rev to 625 cc/rev

• Rated Operating Pressure: 175 bar (2500 psi)

• Max Peak Pressure: 250 bar (3600 psi)

• Max Output Torque: Approx. 1200 – 1600 Nm (Model-dependent)

• Max Speed: 160 – 250 rpm (Displacement-dependent)

• Structural Configuration: Gerotor-style, high-pressure reinforced shaft seal

Key Technical Advantages:

• Advanced Gerotor Power Element: Utilizing high-precision CNC gear-form processing, we ensure minimal mesh clearances. This results in superior mechanical and volumetric efficiency, providing smooth operation even at extremely low speeds and high loads.

• High-Pressure Shaft Seal System: Equipped with reinforced high-pressure shaft seals, our motors can withstand backpressure without the need for external case drain lines, simplifying installation and reducing potential leak points.

• Heavy-Duty Tapered Bearing Support: The output shaft utilizes heavy-duty tapered roller bearings, offering exceptional radial and axial load-bearing capacity. This allows for direct driving of heavy sprockets or rotary tables without auxiliary gearboxes.

• Impact Resistance: Critical components, including the valve plate and gerotor set, undergo specialized heat treatment for superior corrosion and impact resistance, maintaining structural integrity during frequent stop-start cycles or sudden pressure spikes.

Application Areas:

• Construction Machinery: Excavator travel drives, rotary drill drive heads, and road roller vibration/propulsion systems.

• Agricultural Equipment: Auxiliary drives for combine harvesters and travel mechanisms for large-scale planters.

• Material Handling: Forklift rotary systems, container handler chassis drives, and forestry grab-arm rotation.

Expert Maintenance Tips:

• System Flushing Protocol: Due to the precision clearances within the gerotor set, perform a thorough system flush before installation to remove installation debris. We strongly recommend a 20μm precision return-line filter.

• Case Pressure Monitoring: For high-load or high-frequency stop-start applications, monitor the case pressure to ensure it does not exceed the seal’s pressure rating.

• Cold Start Protection: When operating in temperatures below 0°C, perform a 5-10 minute low-speed, no-load warm-up. This ensures lubricant flowability is restored, preventing surface scoring within the gerotor set due to poor lubrication.