KMER Series Hydraulic Motor for Agricultural Machinery, 125–750 ml/r, Multiple Displacements, Low-Speed High-Torque Drive

The KMER Series hydraulic motor is designed for industrial and mobile equipment requiring hydraulic drive. For selected agricultural applications, including conveying mechanisms, harvesting auxiliaries, and other rotary drive systems, its suitability can be evaluated according to load requirements, target speed, and hydraulic system parameters.

The series features a fixed rotor design, low starting pressure characteristics, high output torque, and low-speed operating capabilities. With displacement options from 125 to 750 ml/r, the KMER Series offers equipment manufacturers flexibility when selecting a motor for specific drive requirements.

Fixed Rotor Design

The KMER Series uses a fixed rotor design and can be evaluated as a candidate for hydraulic drive systems in agricultural machinery. Actual operating performance depends on the selected model and system configuration.

Low Starting Pressure and High-Torque Drive

Its low starting pressure characteristics and high output torque design are relevant considerations for applications involving startup loads or low-speed drive mechanisms. Actual starting performance and torque must be verified using the technical data for the selected model.

Needle Roller Bearing Design

The product catalogue describes a needle roller bearing arrangement designed to withstand higher axial and radial forces. For agricultural applications, shaft loading, shock loads, and duty cycles must still be checked.

Low-Speed Operating Design

The catalogue describes the motor's distribution structure as providing strong automatic compensation and high volumetric efficiency, supporting smooth low-speed operation. Actual performance depends on operating pressure, flow rate, hydraulic fluid condition, and external load.

Agricultural Applications and Motor Selection

The KMER Series can be evaluated for the following agricultural machinery applications:

• Agricultural Conveying Mechanisms: Determine the required torque and speed based on material load, conveying speed, and starting resistance.

• Harvesting Auxiliary Equipment: Review duty cycle, load variation, operating environment, and continuous running time.

• Rotary Drive Mechanisms: Select the appropriate configuration according to target speed, transmission design, load direction, and available installation space.

Before confirming a model, verify these key parameters:

1. Required displacement and target speed.

2. Continuous system pressure and available hydraulic flow.

3. Continuous and intermittent load torque.

4. Flange dimensions, output shaft type, and port connections.

5. Operating temperature, hydraulic fluid cleanliness, and duty cycle.

Pressure, flow, speed, and torque ratings vary across KMER displacement options. The maximum rating of one model should not be applied to the entire series.

Purchasing and Model Matching

For agricultural machinery manufacturers, equipment integrators, and replacement-parts buyers in Europe and North America, hydraulic motor selection should prioritize actual operating conditions and interface compatibility rather than relying on the product series name alone.

For new equipment development, provide the target speed, load torque, system flow, operating pressure, and mounting drawings to help identify a suitable displacement and connection configuration. For replacement projects, the existing motor model, nameplate photo, or interface dimensions can help establish compatibility.

Keystone Hydraulic can assist with model matching and configuration review according to project requirements. Final model selection and supply specifications should be confirmed through the agreed technical data and ordering information.

Contact us with your agricultural machinery drive requirements to discuss a suitable KMER Series hydraulic motor configuration.