When you are sourcing servo drives for CNC systems, choosing the right motion-control component is critical for maintaining positioning accuracy, stable machine operation, and predictable production output. However, not every CNC application relies only on an electric servo drive. Hydraulic CNC equipment may require an electro-hydraulic servo valve to control flow, pressure, and actuator movement with an electrical command.
The Rexroth 4WRTE25R350L-44 is designed for this type of precision hydraulic control. If you need a genuine automation spare part for a CNC machine, hydraulic drive, robot, or industrial automation system, DUOMI CNC can help you source the required Rexroth component with global delivery and technical support.
A CNC machine depends on coordinated motion control. The control system sends electrical signals, while the drive or hydraulic control component converts those commands into controlled machine movement.
For hydraulic CNC equipment, the Rexroth 4WRTE25R350L-44 electro-hydraulic servo valve can regulate hydraulic flow and pressure according to an electrical control signal.
This makes the valve relevant to applications where you need:
The model is specified with a maximum pressure of 350 bar, a 0–60 L/min flow range, 24 V DC input, and IP65 protection according to the product information provided by DUOMI CNC.
The 4WRTE25R350L-44 is different from a conventional electric servo drive. Instead of directly controlling an electric motor, an electro-hydraulic servo valve manages hydraulic power within the machine.
This distinction matters when you are replacing a failed automation component. Matching only the general product category is not enough. You should verify the exact model number, control method, pressure requirements, flow requirements, and application before ordering.
| Parameter | Rexroth 4WRTE25R350L-44 |
|---|---|
| Brand | Rexroth |
| Model | 4WRTE25R350L-44 |
| Product Type | Electro-Hydraulic Servo Valve |
| Control | Electrical Signal |
| Maximum Pressure | 350 bar |
| Flow Rate | 0–60 L/min |
| Input Voltage | 24 V DC |
| Protection | IP65 |
| Typical Applications | CNC machines, hydraulic automation systems |
These specifications make the component suitable for demanding hydraulic control environments where stable response and accurate movement are important.

You may need an electro-hydraulic servo valve when your CNC or automation equipment uses hydraulic actuators rather than relying entirely on electric motor-driven axes.
Typical scenarios include:
For these applications, identifying the exact part number is particularly important because similar-looking hydraulic valves can have different control characteristics and specifications.
If you are replacing a component related to servo drives for CNC systems, use the following process before placing an order:
This approach reduces the risk of ordering a component that looks compatible but cannot be integrated correctly into your hydraulic control system.
Understanding the difference can help you select the correct spare part.
| Feature | Electro-Hydraulic Servo Valve | Conventional Electric Servo Drive |
|---|---|---|
| Main Function | Controls hydraulic flow and pressure | Controls electric motor operation |
| Power Medium | Hydraulic | Electrical |
| Typical Application | Hydraulic CNC systems and actuators | Electric CNC axes and motion systems |
| Control Input | Electrical signal | Electrical command |
| Main Component | Servo valve | Drive/amplifier |
| Maintenance Focus | Hydraulic pressure, flow, valve condition | Motor, drive, feedback, wiring |
Therefore, if your machine uses hydraulic actuation, searching only for an electric servo drive may not identify the correct replacement. The Rexroth 4WRTE25R350L-44 should be evaluated as an electro-hydraulic control component within the complete CNC motion-control system.
DUOMI CNC specializes in supplying new and discontinued automation spare parts to customers in more than 100 countries. Its portfolio covers drives, inverters, PLC modules, motors, HMIs, control systems, circuit boards, encoders, and teach pendants.
For sourcing hard-to-find automation components, DUOMI CNC provides:
The company also supplies automation brands including Rexroth, Siemens, Fanuc, Allen-Bradley, ABB, Yaskawa, Mitsubishi, Danfoss, SEW-Eurodrive, Lenze, Schneider, KUKA, IFM, Heidenhain, SICK, B&R, and Delta.
No. It is an electro-hydraulic servo valve. It uses an electrical signal to control hydraulic flow and pressure, making it suitable for hydraulic motion-control applications rather than directly driving an electric servo motor.
Yes, the supplied product specifications identify CNC machines and hydraulic automation systems as applications. Before ordering, you should verify the exact part number and system requirements of your machine.
Provide DUOMI CNC with the exact 4WRTE25R350L-44 model number and specify whether you need a new or alternative-condition component. DUOMI CNC can then confirm the available part condition, quotation, testing information, warranty, and delivery options.
When you need servo drives for CNC systems, you should first determine whether your machine uses electric motion control or hydraulic actuation. For CNC equipment that relies on hydraulic control, the Rexroth 4WRTE25R350L-44 electro-hydraulic servo valve provides a more relevant component solution for regulating hydraulic flow and pressure. With its specified 350 bar maximum pressure, 0–60 L/min flow range, 24 V DC input, and IP65 protection, it can be evaluated for demanding CNC and automation applications. DUOMI CNC supports global sourcing of genuine and replacement automation spare parts, helping you identify the correct component and reduce equipment downtime.