China Good quality Hydraulic Motor with Good quality

Product Description

Hydraulic motor manufacturer
hydraulic motor supplier
hydraulic motor factory

We are a factory with more than 20 years’ experience in designing and manufacturing various kinds of hydraulic motors, such as piston hydraulic motor, orbital motor, bent axis hydraulic motor, high speed hydraulic motor, high torque low speed hydraulic motor.

To reaches advanced domestic level and international standards, we have developed various hydraulic motors which can be completely interchanged with Hagglund, Intermot NHM Series, Calzoni MCR Series, SAI GM Series, CHINAMFG CHINAMFG OMM, OMP, OMR, OMS, OMT, OMV, OMH Series, Eaton, Char-lynn, CHINAMFG A2FE, A2FM, A6V Series and CHINAMFG MS Series hydraulic motor.

We have strict quality control systems: all items will be tested by precision electronic instruments before packing and delivery to clients.


GM Technical Parameters


Replace for: SAI GM Series hydraulic motor
Displacement: 60-12000ml/r


Applied for:

plastics machinery, light industrial machinery, heavy type metallurgical machinery, petroleum and coal mining machinery, lifting and transportation equipment, ship’s deck machinery, geological prospecting equipments, etc.

NAM Technical Parameters.

Model: NAM Series hydraulic motor

Displacement: 213-10019ml/r


NAM series bent axle connecting rod type motor has such characteristics as:high mechanical efficiency and good reliability,

thus it can be widely applied in hydraulic and transmission systems of plastics machinery,light industrial machinery,heavy type metallurgical machinery,petroleum and coal mining machinery,lifting and transportation equipment,ship’s deck machinery,geological prospecting equipment etc.


BM Technical Parameters.


Model: BM Series hydraulic motor

Displacement:50-985 ml/r

Torque:95-1700 N.m

We are the specialized manufacture of orbital hydraulic motor.

We can provide more than 2000 kinds of motor with different models and technical parameters:the rated displacement from 50mm to 1600cc, Max.torque from 50Nm to 3300Nm,Max output power from 2 KW to 90 KW,which has provided wide choice to meet cutomer needs.


Meanwhile,Our products manufactureed can be completely interchanged with SAUER CHINAMFG OMP, OMR, OMH, OMS, OMT, AND OMV series.


A2FM / A2FE .Technical Parameters


Model: CHINAMFG A2FM A2FE Series hydraulic motor
Displacement:10-285 cm³
Torque:65-1393 N.m

Our products manufactureed can be completely interchanged with REXROTH series hydraulic motor



QJM Technical Parametes.


Model: CHINAMFG QJMSeries hydraulic motor

Displacement:63-10000 ml/r
Torque:95-15000 N.m


QJM series hydraulic motors can constitute a hydraulic actuator with different oil pumps, valves and hydraulic parts. They are able to adapt themselves to all kinds of mechanical conditions by reason of some measures taken to their designs. The motor has many advantages, e.g. light weight, small size, wide speed regulating range, capable of stepping variation, reliable performance and long useful life, etc. As this model has variable displacements dual and trial speeds, it is wider in speed regulating range. That 1 of Z series hydraulic motor can endure outside radial and axial forces. As T series hydraulic motor has a central through hole, the rotating shaft can pass through the motor.


Certification: CE, ISO9001
Excitation Mode: Hydraulic Oil
Power Rating: Hydraulic Oil
Casing Protection: Protection Type
Number of Poles: Hydraulic Oil
Speed: Low Speed
US$ 200/Piece
1 Piece(Min.Order)




hydraulic motor

How does the efficiency of hydraulic motors compare to other types of motors, such as electric motors?

The efficiency of hydraulic motors compared to other types of motors, such as electric motors, depends on various factors and the specific application. Here’s a detailed explanation of the efficiency comparison:

Hydraulic motors and electric motors both have advantages and disadvantages in terms of efficiency:

  • Hydraulic Motor Efficiency: The efficiency of hydraulic motors can vary depending on the design, operating conditions, and system configuration. Overall, hydraulic motors can achieve high efficiencies, typically ranging from 80% to 95%. However, it’s important to consider that hydraulic systems may experience energy losses due to factors such as fluid leakage, heat dissipation, and pressure drops in the system. Proper maintenance, system design, and component selection are crucial for optimizing the efficiency of hydraulic motors.
  • Electric Motor Efficiency: Electric motors are known for their high efficiency. Modern electric motors can achieve efficiency levels above 90%, with some advanced models reaching efficiencies of 95% or higher. Electric motors have improved significantly in recent years due to advancements in motor design, materials, and control systems. Additionally, electric motors have the advantage of being able to operate at variable speeds and can be precisely controlled, allowing for efficient energy management in various applications.

When comparing the efficiency of hydraulic motors and electric motors, it’s important to consider the specific requirements and characteristics of the application:

  • In applications where precise control, variable speed operation, and high efficiency are critical, electric motors are often preferred. Electric motors offer excellent controllability and can be integrated with advanced control systems, enabling efficient energy management and optimization.
  • Hydraulic motors, on the other hand, excel in applications that require high torque output, compact size, and the ability to handle heavy loads. They are commonly used in industries such as construction, agriculture, and mining, where high power density and robustness are crucial.

It’s worth noting that the efficiency comparison between hydraulic motors and electric motors is not always straightforward. The overall system efficiency also depends on other components, such as pumps, valves, and transmission systems, which may introduce additional energy losses. Additionally, the specific operating conditions, duty cycles, and maintenance practices can significantly impact the efficiency of both types of motors.

In summary, while electric motors generally have higher efficiency levels, hydraulic motors have unique advantages in terms of power density, torque capability, and suitability for heavy-duty applications. The choice between hydraulic motors and electric motors depends on the specific requirements, operating conditions, and trade-offs of each application.

hydraulic motor

What are the common challenges or issues associated with hydraulic motor operation?

Hydraulic motors are reliable and widely used in various applications. However, there are some common challenges and issues that can arise during their operation. Here are a few examples:

  • Fluid Contamination: Hydraulic systems are susceptible to fluid contamination, which can cause malfunctions and reduce the lifespan of hydraulic motors. Common contaminants include dirt, debris, water, and air. Regularly monitoring and maintaining proper fluid cleanliness through filtration and regular fluid analysis can help mitigate this issue.
  • Seal and O-ring Failure: Seals and O-rings are critical components in hydraulic motors, and their failure can lead to fluid leaks and reduced performance. Factors such as high pressures, temperature fluctuations, and inadequate lubrication can contribute to seal and O-ring degradation. Regular inspection, proper lubrication, and prompt replacement of worn or damaged seals can help prevent leaks and maintain motor efficiency.
  • Overheating: Overheating is a common issue in hydraulic motor operation. Continuous high-pressure operation or insufficient cooling can cause the motor to overheat, leading to reduced efficiency and potential damage to internal components. Proper cooling systems, monitoring operating temperatures, and avoiding excessive load demands can help prevent overheating issues.
  • System Leaks: Hydraulic motor systems can experience leaks due to various reasons, such as damaged seals, loose fittings, or worn-out hoses. Leaks not only result in fluid loss but can also create safety hazards and compromise system performance. Regular inspection, maintenance, and prompt repair of leaks are necessary to ensure the system operates reliably.
  • Cavitation: Cavitation occurs when the hydraulic fluid experiences rapid pressure changes, leading to the formation and implosion of vapor bubbles. This phenomenon can cause damage to the motor’s internal components and result in reduced performance. Proper system design, adequate fluid supply, and avoiding excessive pressure drops can help mitigate cavitation issues.
  • Excessive Wear and Tear: Hydraulic motors are subject to wear and tear due to the high-pressure and high-load environments in which they operate. Components such as bearings, gears, and shafts can experience wear over time, leading to reduced efficiency and potential failure. Regular maintenance, lubrication, and timely replacement of worn components are essential to mitigate excessive wear and ensure the motor’s longevity.
  • Improper Sizing or Selection: Choosing an incorrectly sized or incompatible hydraulic motor for a specific application can lead to suboptimal performance, inefficiency, and potential premature failure. It is crucial to consider factors such as torque requirements, speed, operating conditions, and environmental factors when selecting a hydraulic motor to ensure it is properly matched to the application’s needs.

By being aware of these common challenges and issues associated with hydraulic motor operation, implementing proper maintenance practices, and promptly addressing any problems that arise, operators can maximize the performance, reliability, and lifespan of hydraulic motor systems.

hydraulic motor

What factors should be considered when selecting a hydraulic motor for a specific application?

When selecting a hydraulic motor for a specific application, several factors need to be considered to ensure optimal performance and compatibility. Here are the key factors to consider:

  • Torque and Speed Requirements: Determine the required torque and speed for the application. This includes considering the maximum and minimum torque and speed values, as well as any variations or operating conditions that may affect the motor’s performance.
  • Power Density: Evaluate the power density requirements, considering the available space and weight limitations. Hydraulic motors offer high power density, making them suitable for applications where compact size and high power output are important.
  • Efficiency: Consider the desired efficiency of the hydraulic motor. The efficiency can impact energy consumption and overall system performance. It’s important to balance the efficiency requirements with other factors such as torque, speed, and cost.
  • Control and Controllability: Assess the control requirements of the application. Determine if precise control of speed, direction, and torque is necessary. Some hydraulic motors offer variable speed and reversible operation, allowing for flexible control options.
  • Environmental Conditions: Evaluate the environmental conditions in which the hydraulic motor will operate. Consider factors such as temperature, humidity, dust, and vibration levels. Select a motor that is suitable for the specific environmental conditions to ensure reliable and durable performance.
  • Fluid Compatibility: Ensure compatibility between the hydraulic motor and the hydraulic fluid used in the system. Consider the viscosity, temperature range, and any specific requirements or recommendations provided by the motor manufacturer.
  • Installation and Maintenance: Consider the ease of installation, maintenance requirements, and accessibility for servicing the hydraulic motor. Evaluate factors such as mounting options, alignment requirements, and access to maintenance points.
  • Cost and Budget: Consider the budget and cost constraints for the application. Evaluate the initial cost of the motor, as well as the long-term operating costs, including maintenance, energy consumption, and potential downtime.
  • Reliability and Durability: Assess the reliability and durability requirements of the application. Consider factors such as expected lifespan, duty cycle, and the reputation of the motor manufacturer.

By carefully considering these factors, you can select a hydraulic motor that meets the specific requirements of your application, ensuring optimal performance, efficiency, and longevity.

China Good quality Hydraulic Motor   with Good quality China Good quality Hydraulic Motor   with Good quality
editor by CX 2023-10-20