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Hydraulic motors for medium to high pressure industrial applications.

Featuring low noise, high starting torque, stable low-speed operation, high volumetric efficiency, enhanced reliability with optimized friction pairs, and high power-to-weight ratio.

Mainly used in construction machinery, mining equipment, metallurgical machinery, marine equipment, agricultural machinery, and industrial conveying and heavy-duty transmission systems.

ITM / ITMH / ITMS · Up to 23 MPa

 
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Your Professional Hydraulic Motor Supplier

 

 

BOKIN is a high-tech company focused on R&D, manufacturing, and global trade of high-end hydraulic components and intelligent electro-hydraulic systems. We provide reliable hydraulic solutions and customized systems for industrial automation, construction machinery, precision manufacturing, and new energy applications.


Strong R&D Capability
Backed by advanced research from Zhejiang University and experienced engineers, we continuously develop stable and efficient hydraulic technologies.

 

Reliable Product Quality
We follow strict quality control standards to ensure consistent performance, durability, and safe operation in industrial environments.

 

Flexible Custom Solutions
We support OEM/ODM services including specifications, control systems, logos, and packaging to meet different project needs.

 

 

Specification

 

 

Mounting Hole Configurations

5-∅13 mm (P.C.D ∅160±0.2 mm); 2-∅11 mm (P.C.D ∅106.4±0.2 mm); 4-∅11 mm (P.C.D ∅105±0.1 mm)

Keyway Dimensions

6-30b12x25b12x6f8 (base model); customized for B/B2/B-1 variants

Shaft End Metrics

26 mm (keyway center distance), 23.5 mm (flange thickness)

Sealing Type

O-ring (mounting face)

Thread Standard

G-thread for ports and accessories

Compatible Components

ITMS, STFC, STFD series; CRM-HA/PS/HB valves; SMA6V/SMA2F accessories

 

Types of Hydraulic Motor

 

The hydraulic motor produced by our company mainly include the following types:

ITMH

The ITMH Series is a precision-engineered high-pressure hydraulic motor, ideal for industrial applications demanding stable power output and seamless system integration.

ITM

The ITM Series (63-125) is a precision-engineered high-pressure hydraulic motor, tailored for industrial applications requiring medium torque output (63-125 N·m) and stable operation.

ITMS

The ITMS Series is a super heavy-duty high-pressure hydraulic motor, engineered for industrial scenarios requiring ultra-heavy load extreme drive with ultra-high pressure resistance demands.

 

 

Advantages of Hydraulic Motor

 

 

 

High Torque at Low Speed
Hydraulic motors can provide substantial force even at relatively low operational speeds.

 
 

Durability
Designed to handle high pressures, these motors are built to last, even in challenging environments.

 
 

Compact and Efficient Design
Hydraulic motors offer a high power-to-weight ratio, making them suitable for space-constrained setups.

 
 

Bi-Directional Operation
Many motors, can spin both clockwise and counterclockwise, offering versatility for different systems.

 
 

Scalability
Motors come in various displacements and sizes, allowing engineers and technicians to find the perfect match for their specific needs.

 

 

 

Applications of Hydraulic Motor

 

 

Excavators

Excavators are a pillar of modern construction work, handling tasks such as digging, lifting, and trenching. Hydraulic motors impact excavators by:
Powering their swinging motion
Ensuring smooth and precise operation of the boom and bucket
Allowing them to handle extreme weights and tight spaces

Loaders

Loaders, which move substantial amounts of material such as soil, gravel, or debris, rely heavily on hydraulic motors to operate their lifting arms and buckets. The versatility of these motors allows loaders to efficiently manage high payloads while maintaining ease of control, which is critical on construction sites with shifting loads and uneven terrain.

Cranes

Cranes use hydraulic motors to perform intricate lifting operations, providing the torque and control needed to hoist and place heavy materials at precise locations. Hydraulic motor-driven winches and swing mechanisms make cranes indispensable for large-scale construction projects, particularly those involving skyscrapers or bridges.

Drilling Machines

Hydraulic motors also empower drilling equipment used in foundations, tunnels, and other infrastructure projects. The controlled torque output of hydraulic motors makes them suitable for handling tough ground conditions and penetrating deep into the earth.

Concrete Mixers

Concrete mixers used at job sites often employ hydraulic motors to spin their drums, which ensures even mixing of materials. This reliable rotational force is essential for delivering high-quality concrete that meets the structural standards of modern buildings and infrastructure.

 

 

Key Differences Between Hydraulic Motors and Cylinders

 

 

Feature

Hydraulic Motor

Hydraulic Cylinder

Motion Type

Rotary

Linear

Energy Conversion

Fluid → Rotation

Fluid → Straight-line force

Best For

Continuous motion (wheels, drives, mixers)

Lifting, pushing, clamping

Force Output

High torque

High linear force

Control

Speed and direction

Stroke length and position

 

Hydraulic Motor Installation Steps
ITMS30 Super Heavy Duty Ultra High Pressure Hydraulic Motor
ITMS30 ultra high pressure hydraulic motor
oil port distributor hydraulic motor
ITMS18 high torque hydraulic motor

1. Prepare for installation
Before installing the hydraulic motor, it is first necessary to ensure that all components of the hydraulic system are in good condition, especially whether the combination of the motor and the hydraulic oil circuit system meets the requirements. Carefully check the specifications of the gear motor and the plunger motor to ensure that they meet the design requirements.

 

2. Positioning and fixing
During the installation process, the hydraulic motor must be accurately positioned in strict accordance with the requirements of the design drawings. Whether it is a quantitative motor or a two-way hydraulic motor, it is necessary to ensure that the mounting base of the motor is smooth, bolted and reaches the specified torque to prevent loosening caused by vibration or long-term operation.

 

3. Connection of hydraulic system
Special attention should be paid to the connection of the oil inlet and outlet pipes of the hydraulic motor, which must be correctly connected according to the hydraulic schematic diagram to prevent wrong connection or oil leakage. When using the hydraulic drive device, special attention should be paid to the tightness of the oil circuit to ensure no leakage.

 

4. Configure the control system
The control system configuration of hydraulic motor is the key to its efficient operation. In modern industry, more and more equipment uses automatic control systems to achieve more precise operation. During the installation, ensure that the pressure compensation and flow regulation functions are correctly configured to prevent system faults caused by improper flow or pressure.

 

5. Safety braking system
In some operating environments, the brake motor function of the hydraulic motor is essential. Especially when the equipment needs to be started and stopped frequently or stopped under load, the brake motor can ensure that the equipment is stopped safely in an emergency to prevent mechanical damage or personnel injury.

 

6. Trial operation and debugging
After installation, a trial run must be carried out. In the trial operation, it is necessary to check whether the functions are normal, especially whether the link load regulation is sensitive, and whether the control system can respond to changes in the workload in time.

 

 

Customizable Options

 

 

Mounting Style

Flange / Foot / SAE

Shaft Type

Keyed / Splined / Tapered

Port Type

BSPP / NPT / SAE

Housing Material

Cast Iron / Aluminum

Seal Material

NBR / FKM / PTFE

 

 

Packaging and Shipping

 

 

Packaging

Standard export wooden cases or Customized packaging

Shipping

Shipping by sea, by air, by express are acceptable. According to your requirements.

 

 

Our Certificates

 

 

productcate-1-1

 

 

FAQ

 

 

Q: What is the fundamental operating principle of a hydraulic motor?

A: A hydraulic motor transforms hydraulic pressure or fluid energy into rotational force and angular motion, using components like rotors, pistons, and stators to generate controlled mechanical output.

Q: How do low-speed high torque (LSHT) and high-speed low torque (HSLT) hydraulic motors differ?

A: LSHT motors deliver substantial torque at low speeds, ideal for heavy-duty, precise tasks. HSLT motors operate at higher speeds with lower torque, making them suitable for rapid, lighter-load applications requiring efficiency and compact size.

Q: What are the critical considerations when selecting a hydraulic motor for industrial applications?

A: Key factors include load requirements, motor type, displacement (fixed or variable), leakage potential, noise level, reliability, control method, maintenance needs, bearing type, installation complexity, and system loop type.

Q: What maintenance steps are recommended to ensure hydraulic motor longevity?

A: Essential maintenance includes cleaning filters, regularly changing fluid, monitoring viscosity, checking for oxidation, detecting water contamination, and addressing fluid contamination to prevent wear and ensure optimal performance.

Q: What is the minimum rpm for a hydraulic motor?

A: The hydraulic motors range from high-speed motors of up to 10,000 rpm to low-speed hydraulic motors with a minimum of 0.5 rpm. Low speed hydraulic motors generate large torques at low speeds. You can find both at our Parker distributor hydraulics company.

Bokin Electro-Hydraulic Technology (Foshan) Co., Ltd. is one of the most experienced hydraulic motor manufacturers and suppliers in China, featured by quality products and good price. Please rest assured to buy bulk advanced hydraulic motor in stock here from our factory. Contact us for pricelist and customized service.

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