Servo Motors And Drives in CNC Press Brake
Product Description
Servo Motors and Drives in CNC Press Brake
Servo motors and drives are critical components in a CNC press brake, enabling precise and repeatable motion control of key axes such as the ram (Y1/Y2) and backgauge (X, R, Z1, Z2, etc.).
⚙️ What They Do
Servo Motors convert electrical signals into high-precision mechanical motion.
Servo Drives process control signals from the CNC controller and regulate power to the motors.
Functions in a Press Brake
| Axis / Component | Controlled by Servo? | Description |
|---|---|---|
| Y1 / Y2 (Ram cylinders) | ✅ | Controls the vertical stroke, ensures synchronized movement. |
| X-axis (Backgauge) | ✅ | Controls the forward/backward position of the material stop. |
| R-axis (Backgauge) | ✅ | Controls the vertical position of the backgauge fingers. |
| Z1 / Z2 (Backgauge) | ✅ | Controls left and right finger movement for part alignment. |
| Crowning System | ✅ (optional) | Adjusts table deflection for consistent angles across parts. |
✅ Advantages of Servo Systems
High positioning accuracy (typically ±0.01 mm)
Fast response and repeatability
Energy efficient – power only used during motion
Maintenance-friendly – fewer mechanical components than hydraulic drives
Smooth and quiet operation
Brands Commonly Used
Yaskawa
Delta
Siemens
Panasonic
Beckhoff
Mitsubishi
Each brand offers different levels of integration with CNC controllers (like Delem, ESA, CybTouch).