The E21 and E200P press brake controllers are both products of Estun, a company based in China. The following are the differences between these two controllers:
| Comparison Parameter | E21 | E200P |
|---|---|---|
| Display Screen | Monocolor | Multicolour |
| X, Y Axis Positioning | Manual | Auto |
| X, Y Axis Control | 1. Ordinary Motor, poor positioning accuracy; | 1. Servo motor, the high positioning accuracy of 0.05mm; |
| 2. Positioning accuracy: 0.1mm at most; | 2. Repositioning accuracy: 0.02mm | |
| 3. Repositioning accuracy: 0.1mm; | ||
| X-axis Transmission | Round chrome-coated rod | Precise linear guide rail with more stable motion |
| X-axis Positioning Speed | 1. Ordinary Motor; | 1. Servo motor; |
| 2. Max speed: 40mm/s; | 2. Max speed: 200mm/s; | |
| Y-axis Positioning Speed | 1. Step Motor; | 1. Servo motor |
| 2. Max rotating speed: 500r/min | 2. Max speed: 1500r/min | |
| Wiring Assembly Function | None | 1. Built-in PLC to change the motion of valve in time; |
| 2. Setting of pressure-adding, pressure-holding & off-load time; | ||
| 3. Convenient for maintenance; | ||
| Stroke Return Distance Adjustment | None | 1. Adjustable return stroke height, no need back to the up dead point every time; |
| 2. Improve the efficiency |
