High Efficiency External Gear Hydraulic Gear Motor PGM350 For Track Loader

Hydraulic Gear Motor Introduction

The Parker PGM350 series hydraulic gear motors are high-performance, fixed-displacement gear motors with a robust cast iron construction, offering excellent pressure resistance and durability. These motors feature high volumetric efficiency, smooth operation, and support clockwise, counter-clockwise, and bidirectional rotation, providing reliable power output and a long service life for high-load applications.

Hydraulic Gear Motor of Cast Iron Bushing Design
1. Heavy duty, cast iron, external gear motor .
2. Standardization,universalization , serialization design.
3. Displacement range: 20.9ml/r-104.5ml/r,
4. Max rated pressure: 245bar,Intermittent:275bar,
5. Speed range: 400-2400 RPM.

PGM gear motors are a series of heavy-duty, fixed-displacement hydraulic gear motors (often used with PGP pumps). Featuring an aluminum alloy or cast iron housing, they are characterized by robust construction, high pressure resistance, low noise, and high efficiency, and support bidirectional operation. The series covers various displacements and is suitable for industrial and mobile equipment applications such as construction machinery, material handling, agricultural machinery, and hydraulic power units. They represent a reliable, economical, and widely applicable medium- and high-pressure gear motor solution.

Hebei Runhe Hydraulic Machinery Co., Ltd. is a leading manufacturer and supplier of hydraulic components. With over 12 years of experience in R&D, manufacturing, and sales, we are able to meet the diverse needs of our customers. Our products include hydraulic cylinders, hydraulic gear pumps, and hydraulic gear motors.

Hydraulic Gear Motor Parameters

Hydraulic Gear Motor Advantages

• Heavy-duty cast iron housing: All-cast iron construction, offering excellent impact and fatigue resistance.
• High-precision gear meshing: Utilizes advanced gear design and precision machining to reduce internal leakage.
• Low pulsation and smooth output: Minimal flow pulsation and uniform torque output significantly reduce system vibration and pipeline shock.
• Bidirectional rotational self-adaptation: Built-in balancing design supports rotation in any direction, eliminating directional limitations during installation.
• Excellent contamination resistance: Internal channels and sealing system have high tolerance to oil contamination, extending service life under suboptimal oil conditions.
• Modular design: Offers various shaft end, mounting flange, and port combinations for quick adaptation to different brands of pumps, valves, and equipment.
• High cost-effectiveness and low maintenance: Simple and reliable structure, easy to maintain, and low total cost of ownership.

Precautions for use

• Hydraulic Oil Requirements: 

Only clean hydraulic oil should be used. A cleanliness standard of ISO 4406 18/16/13 or higher is recommended. Change the filter and oil regularly to prevent oil contamination and premature motor wear.

• Avoid Dry Running:

After initial installation or prolonged periods of inactivity, a small amount of hydraulic oil must be added to the motor. Dry running is strictly prohibited and will cause severe internal damage.

• Pressure and Speed ​​Control:

Operating beyond the rated pressure or speed for extended periods is strictly prohibited. Overpressure and overspeed will significantly shorten motor life and may even cause direct damage.

• Temperature Management:

The operating oil temperature should be controlled within the range of -20℃ to 80℃. Prolonged exposure to high temperatures (>80℃) will accelerate seal aging and oil deterioration.