Stroke detection unit is the core component for precise control of hydraulic cylinders. Wujin Hydraulic's independently developed active magnetic detection stroke sensing technology, equipped with high-performance data acquisition and processing chips, delivers higher sensitivity, better temperature adaptability and frequency response than traditional Hall sensors. By designing a special structure on the piston rod surface, the sensor obtains accurate real-time position information when approaching, enabling high-precision, high-reliability monitoring of cylinder stroke.
Since the launch of the first-generation product in 2008, we have continuously iterated and launched incremental, absolute and miniaturized series. In 2012, we successfully developed the world's first stroke detection unit with power-off memory function, demonstrating our technical strength and industry leadership.
| Product |  |  |  |  |  |
Model | CPMS-I | CPMS-I (Improved) | CPMS-II | CPMS-JD | CPMS-JD-mini |
Type | Incremental | Incremental | Absolute | Absolute | |
Power-off Memory Time (h) | 0 | 360 | Permanent | Permanent | |
Detection Accuracy (mm) | ±1 | ±1 | ±0.5 | ±0.1 | |
Protection Rating | IP67 | IP68 | IP68 | IP68 | IP68 |
Anti-interference Ability | Standard | Medium | High | High | |
Cumulative Error | Yes | Yes | No | No | |
Operating Speed (m/s) | 4 | 4 | 6 | 9 | |
Output Signal / Communication Protocol | Square Wave Pulse | SSI | 4~20mA/SSI | SSI/Modbus/ | |
