MKD025B-144-KP0-UN Rexroth”s full range of motors

MKD025B-144-KP0-UN Rexroth”s full range of motors

Introduction to MKD025B-144-KP0-UN Motor

I. General Overview

The MKD025B-144-KP0-UN is a high-performance synchronous servo motor produced by Bosch Rexroth, belonging to the IndraDyn S series. This motor is widely used in industrial automation due to its high torque, high speed, high precision, and excellent environmental adaptability.

II. Key Features

1. High Torque Output:
   • The maximum torque can reach 631Nm, meeting the needs of various high-load applications.
   • Smooth torque output with minimal fluctuations ensures stable equipment operation.
2. Wide Speed Range:
   • The maximum speed can reach 9000rpm, suitable for applications requiring high-speed operation.
   • A wide speed adjustment range allows for flexible adjustments based on actual needs.
3. High-Precision Control:
   • Equipped with a multi-turn absolute Hiperface encoder with an increment of 128, providing high-precision position feedback.
   • High encoder resolution ensures precise and stable motor movement.
4. Excellent Environmental Adaptability:
   • High protection class, typically IP65 or above, enabling stable operation in harsh environments.
   • Optional liquid cooling system available to handle heat dissipation in high-power applications.
5. Compact Structure:
   • The motor is designed to be compact, with a small size and light weight, facilitating easy installation and maintenance.
   • Flat shaft design with shaft sealing rings prevents dust and moisture from entering the motor interior.

III. Application Scenarios

The MKD025B-144-KP0-UN motor is widely used in various industrial automation fields requiring high precision and high torque, including but not limited to:

1. Robot Arms:
   • Provides high torque and precise position control, ensuring flexible movement and accurate positioning of robot arms.
2. Automated Production Lines:
   • Used to drive various automated equipment, such as conveyors and assembly machines, improving production efficiency and product quality.
3. Packaging Machinery:
   • Suitable for high-speed packaging machinery, such as filling machines and sealing machines, ensuring stable and accurate packaging processes.
4. Conveyor Systems:
   • Used to drive conveyor belts, rollers, and other conveying equipment, enabling fast and accurate material transportation.

IV. Technical Parameters

• Rated Power: Varies depending on the specific model and application scenario, but typically meets the needs of high-load applications.
• Rated Voltage: Usually an AC voltage, with the specific value determined by the motor model and配套 (matching) drive.
• Rated Current: Determined based on the motor power and voltage, ensuring stable motor operation under rated conditions.
• Encoder Type: Multi-turn absolute Hiperface encoder, providing high-precision position feedback.
• Protection Class: Typically IP65 or above, ensuring stable motor operation in harsh environments.
• Cooling Method: Natural convection cooling or optional liquid cooling system, selected based on application scenario and power requirements.

This introduction provides a comprehensive overview of the MKD025B-144-KP0-UN motor, highlighting its key features, application scenarios, and technical parameters.

Stepper motor Brushed motor Brushless motor
Rotating method Throughdriving circuitthe armature winding phases (two-phase, three-phase, five-phase)

are excited in the order decided. By the sliding contact type of rectifying mechanism through the brush and commutator,

switch the armaturecurrent. by using magnetic pole positionsensorsandsemiconductorswitches instead

of brushes and commutators to achieve brushless.

Driving circuit Need Not needed Need
Torque The torque is relatively large. (Especially the torque at low speeds) Large starting torque, torque is proportional to

armature current. (The torque is relatively large at medium to high speeds)

Rotating speed Proportional to the frequency of the input pulse. There are slip zones in the low-speed range.

Proportional to the voltage applied to the armature. The speed decreases as the load torque increases.

High-speed rotation High-speed rotation is difficult (need to slow down). limited by the commutator and brush

rectifying mechanism, it can reach several thousand rpm High speeds of thousands to tens of thousands of rpm possible

Rotating life Determined by bearing life. Thousands of hours Limited by the wear of the commutator and brushes.

Hundreds to thousands of hours. Determined by bearing life. Thousands to hundreds of thousands of hours.
Forward and reverse method The order of the excitation phase of the drive circuit needs to be changed

Reversing the polarity of the input voltage to the pin The order of the excitation phase of the drive

circuit needs to be changed
Control; The rotation speed and position (rotation amount) can be controlled by command pulses

in open loop (but there is a problem of loss of steps). Constant-speed rotation requires speed

control (feedback control using a speed sensor). Since torque is proportional to current, torque control is straightforward.

Difficulty of obtaining Easy: There are many varieties. Easy: Many manufacturers and varieties,

many options. Difficulties: mainly dedicated motors for specific applications
Price The price is more expensive if the drive circuit is included. Cheaper than brushless motors.

Relatively cheap, brushless motors are a bit more expensive because of the upgrade of the magnets.

If the drive circuit is included, the price is more expensive