Cast Iron Hydraulic Gear Motor PGM 75 Series Bulldozer Part

Product Introduction

The PGM75 series hydraulic gear motor is a heavy-duty cast iron external hydraulic gear motor designed as a direct replacement for Parker original units. Built-in balanced thrust plates automatically compensate gear wear to cut internal leakage and running noise for steady torque output. It supports multiple SAE flanges, splined/keyed shafts and various port types, with optional integrated relief and anti-cavitation valves. Bi-directional rotation and full interchangeability with original parts make it ideal for heavy-duty harsh environments, with every unit fully pressure-tested for long service life and stable performance.

Product Summary

Hydraulic gear motors are fixed-displacement hydraulic actuators that convert hydraulic energy into rotational mechanical energy via a pair of meshing gears, mainly divided into external and internal meshing types. Featuring compact structure, lightweight design, high cost performance and easy maintenance, they boast strong resistance to hydraulic oil contamination and fit medium-high pressure high-speed working conditions perfectly. Compared with piston motors, gear motors have lower costs and flexible installation compatibility, supporting clockwise and counter-clockwise rotation. Equipped with pressure-compensated flow distribution plates, they reduce internal leakage and deliver stable torque output. Classified by housing material into lightweight aluminum alloy and heavy-duty cast iron versions, they are widely adopted in construction, agricultural, sanitation and vehicle-mounted machinery, ranking among the most popular power motors for mobile hydraulic systems.

Specification

Application

With high pressure, large torque, strong anti-contamination capacity and outstanding durability, the PGM75 hydraulic gear motor is widely matched with mobile heavy machinery. In agriculture, it serves hydraulic drive systems of harvesters, seeders and tractors. For construction machinery, it is applied to wheel loaders, mini excavators, aerial work platforms and winch power units. Sanitation vehicles including salt spreaders, garbage trucks and road sweepers also adopt this motor for hydraulic driving. Besides, it fits vehicle-mounted hydraulic equipment, oilfield service trucks and small port handling machinery. Acting as the core power for traveling, slewing, winching and conveying mechanisms, it is extensively used for equipment maintenance replacement and OEM supporting of brand-new hydraulic systems thanks to its excellent interchangeability.

Our Company

Hebei Runhe Hydraulic Machinery Co., Ltd. is a leading manufacturer specializing in hydraulic system solutions. We are also one of the most recognized suppliers of large OEM equipment manufacturers in Hydraulic Gear Motor. With more than 12 years of industry experience.

Our products include hydraulic cylinder, hydraulic pump, hydraulic motor, widely used in automation equipment, agricultural machinery, lifting machinery, engineering vehicles, printing machinery, intelligent storage system, port ships and many other industries.In addition to the standard series of hydraulic cylinders, we can also provide customized production services according to customer drawings. Our non-standard customization capabilities meet the special needs of customers, such as special port forms, special materials, special installation, special performance, stacked hydraulic valves, etc. 

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