KTMT Series High Pressure Hydraulic Motor for Road Construction Equipment, 315–500 ml/r Plane Flow Distribution

The KTMT Series hydraulic motor is a compact high-pressure hydraulic motor designed for hydraulic drive systems requiring high torque output.

It features an advanced plane flow distribution structure, providing precise flow distribution and automatic compensation capability after wear. Its compact overall construction helps reduce additional installation space and supports integration into different types of machinery.

The series is available in four displacement options: 315, 400, 470, and 500 ml/r. Continuous operating pressure reaches up to 31 MPa, while maximum continuous torque reaches 1,632 N·m.

For the Australian road construction and engineering machinery market, the KTMT Series can be considered as a hydraulic drive option for equipment requiring high-pressure and high-torque performance, subject to actual operating conditions and system compatibility.

The KTMT Series incorporates an advanced plane flow distribution structure, which is one of its main technical features.

Key advantages include:

• High-Pressure Capability: Continuous pressure up to 31 MPa and intermittent pressure up to 34.5 MPa.

• High Torque Output: Continuous torque up to 1,632 N·m and intermittent torque up to 2,034 N·m.

• Automatic Wear Compensation: The distribution structure provides automatic compensation capability after wear.

• Compact Design: Its compact construction helps reduce additional installation space.

• Operating Performance: Designed with a focus on long service life and stable motor and load speeds.

For road construction machinery, motor selection should consider actual drive loads and operating cycles rather than relying solely on maximum torque ratings.

The KTMT Series offers four displacement configurations, allowing equipment manufacturers to match motor performance with hydraulic flow, working pressure, and required rotational speed.

Selection Recommendations:

• 315 ml/r: Suitable for selection requirements involving relatively higher output speed.

• 400 ml/r: Provides a different balance between rotational speed and torque.

• 470 ml/r: Suitable for applications placing greater emphasis on torque output.

• 500 ml/r: Provides the highest continuous torque rating in the series.

Final selection should also consider system pressure differential, available flow, and equipment duty cycle.

When integrating a hydraulic motor into road construction machinery, displacement and torque are not the only selection factors. Mechanical dimensions and hydraulic connection compatibility must also be verified.

1. Output Shaft Configurations

The KTMT Series provides four output shaft options:

• Type A: Rectangular splined shaft, Ø42 mm diameter, 58.5 mm length.

• Type B: Rectangular splined shaft, Ø40 mm diameter, 61 mm length.

• Type C: Straight keyed shaft, Ø40 mm diameter, 79 mm length.

• Type D: Involute splined shaft, Ø38 mm diameter, 82 mm length.

2. Oil Port Options

Three oil port configurations are available:

• Type A: M33×2

• Type B: 2-G1

• Type C: 2-G3/4

3. Mounting Dimensions

• Mounting dimensions: 178 × 178 mm.

• Mounting holes: 4-Ø18.

• Mounting hole arrangement and flange details: Refer to the product engineering drawing.

4. Information Required Before Ordering

Customers are encouraged to provide equipment drawings, target rotational speed, operating pressure, required torque, and hydraulic connection specifications.

For road rollers, asphalt paving machinery, and other construction equipment, the actual drive configuration and duty cycle should be verified before confirming motor compatibility.