Name: REXROTH MKD025B-144-KP0-UN Compact Servo Motor | Qiming Automation
Brand: Rexroth
Price: 39693.00 CNY
Availability: InStock

Description

The REXROTH MKD025B-144-KP0-UN is a compact servo motor from Bosch Rexroth’s MKD series, engineered to be the workhorse of small to medium-sized motion control systems. As a key component in decentralized automation setups, it converts electrical signals into precise mechanical motion, working alongside Rexroth’s IndraDrive Micro controllers to execute intricate movement profiles. Unlike larger servo motors, it’s designed for applications where space is constrained—its compact footprint allows integration into machinery where traditional motors would be too bulky. It fits seamlessly into Rexroth’s modular automation ecosystem, compatible with both centralized control architectures and distributed I/O systems. For engineers designing space-constrained equipment, the REXROTH MKD025B-144-KP0-UN offers a rare combination of small size, high torque, and dynamic response, making it a versatile choice for precision-critical applications.

MKD025B-144-KP0-UN

Main features and advantages:

The REXROTH MKD025B-144-KP0-UNstands out for its impressive torque density—delivering robust performance in a compact package. With a high torque-to-size ratio, it excels in applications like robotic grippers, where limited space requires a motor that can generate sufficient force to handle varying loads without adding excess weight. Its low inertia rotor design enables rapid acceleration and deceleration, crucial for pick-and-place mechanisms in electronics assembly that need to switch between positions in milliseconds.

In terms of hardware, the motor features a durable aluminum housing that balances lightweight construction with industrial ruggedness, weighing in at just 2.8 kg. It operates reliably in temperatures ranging from 0°C to 40°C (with derating up to 60°C) and carries an IP65 protection rating, making it suitable for use in cleanrooms and lightly contaminated environments, such as pharmaceutical packaging areas. The integrated single-turn encoder provides precise position feedback, ensuring that even the smallest movements are tracked with accuracy—essential for applications like 3D printing extruders where layer consistency depends on motor precision.

Compatibility is another key strength. The REXROTH MKD025B-144-KP0-UN integrates smoothly with Rexroth’s IndraDrive Micro and IndraDrive Cs controllers, supporting communication protocols like PROFINET and EtherCAT for seamless integration into Industry 4.0 systems. This flexibility allows it to work alongside other components in the MKD series, creating scalable motion control solutions that grow with application needs.

MKD025B-144-KP0-UN

Technical specifications:
Model MKD025B-144-KP0-UN
Brand REXROTH
Type Compact Servo Motor
Rated Power 0.4 kW
Rated Torque 1.4 Nm
Rated Speed 2800 rpm
Maximum Speed 4500 rpm
Voltage 230 V AC (single-phase)
Protection Rating IP65
Encoder Type Single-turn incremental
Mounting Flange (IEC 72, 40 mm)
Weight 2.8 kg
Operating Temperature 0°C to 40°C (derated up to 60°C)
CoolingNatural convection
CertificationsCE, UL, CSA

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MKD025B-144-KP0-UN

Application areas:

In the world of precision automation, where space is as critical as performance, small-scale motion control presents unique challenges. Think of medical device manufacturing, where tiny components like syringe pumps require motors that can rotate with sub-millimeter precision in tight equipment enclosures. Or consider laboratory automation systems, where robotic pipettes need to move with delicate force to avoid damaging samples—any excess bulk in the motor would limit the system’s ability to handle multiple stations. Even in electronics assembly, where circuit board testers navigate dense component layouts, a compact motor with reliable torque is essential to fit within the machine’s confined workspace. This is where the REXROTH MKD025B-144-KP0-UN shines. Used in industrial automation across these niche applications, it delivers the power-to-size ratio needed for small-scale motion tasks, from precise positioning in diagnostic equipment to synchronized movements in miniature conveyor systems. Whether integrated into handheld tools or benchtop machinery, the REXROTH MKD025B-144-KP0-UN proves that compact design doesn’t have to compromise on performance.

MKD025B-144-KP0-UN

Related products:

REXROTH IndraDrive Micro CMM01.1-040-300-NNN-220-PE – Acts as the ideal drive controller for the REXROTH MKD025B-144-KP0-UN, optimizing its performance in small-scale automation systems through precise current regulation.

REXROTH MKD041B-144-KP0-KN – A higher-torque sibling in the MKD series, offering 2.8 Nm for applications needing more power than the REXROTH MKD025B-144-KP0-UN but still requiring a compact design.

REXROTH R911310569 – A shielded servo cable designed to connect the REXROTH MKD025B-144-KP0-UN to its drive, minimizing signal interference in tight cable runs common in compact machinery.

REXROTH MHD115C-058-PG1-BA – A larger MHD series motor often paired with the REXROTH MKD025B-144-KP0-UN in hybrid systems, handling heavy loads while the MKD manages precision tasks.

REXROTH R900052575 – A miniature coupling designed to connect the REXROTH MKD025B-144-KP0-UN to small-diameter shafts, ensuring efficient power transmission in compact gearboxes.

MKD025B-144-KP0-UN

Installation and maintenance:

Before installing the REXROTH MKD025B-144-KP0-UN, ensure the mounting surface is flat and rigid enough to support its 2.8 kg weight without flexing—even minor vibrations can affect positioning accuracy. Alignment with the driven load is critical; use a dial indicator to check for parallelism within 0.05 mm per 100 mm of shaft length to prevent premature bearing wear. The motor’s IP65 rating allows for use in dusty environments, but ensure cable glands are properly tightened to maintain protection—over-tightening can damage the housing threads. In systems with multiple compact motors, label encoder and power cables clearly to avoid misconnections during maintenance.

Maintenance for the REXROTH MKD025B-144-KP0-UN focuses on preserving its precision in confined spaces. Conduct bi-monthly visual inspections to check for dust buildup around the encoder connector, which can interfere with signal transmission—use compressed air at low pressure (max 2 bar) to clean if needed. The motor’s bearings are lifetime-lubricated, but unusual noise during operation may indicate misalignment or excessive load, which should be addressed promptly. Verify encoder calibration quarterly using the drive’s diagnostic tools to ensure position feedback remains within 0.01 mm tolerance. Avoid using harsh chemical cleaners near the motor, as they can degrade the housing’s protective coating over time.

MKD025B-144-KP0-UN

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