Designed for proportional/servo valve spool feedback, the HD‑180 Series LVDT features a split press‑fit pressure tube and rod for easy installation in tight valve bodies. The one‑piece machined pressure tube with press‑fit construction withstands up to 42 MPa with zero leakage risk. Stainless steel housing and built‑in shielding ensure reliable operation in harsh hydraulic environments. Available in 6–50mm strokes, <0.6% linearity, <0.1% repeatability, with standard (155°C) and high‑temperature (240°C) options. Ideal for proportional valves, servo valves, die‑casting machines, and injection molding machines.
| Code | Stroke Range (mm) | Sensitivity mV/V/(mm) |
|---|---|---|
| HD-180-060-XX-AC | 6 | 63 |
| HD-180-150-XX-AC | 15 | 60 |
| HD-180-200-XX-AC | 20 | 50 |
| HD-180-300-XX-AC | 30 | 32 |
| HD-180-400-XX-AC | 40 | 25 |
| HD-180-500-XX-AC | 50 | 20 |
All values are nominal unless otherwise noted. Dimensions are in mm unless otherwise noted.
FR: Full Range is the stroke range, end to end; FR= S for 0 to S stroke range.
FRO (Full Range Output): Algebraic difference in outputs measured at the ends of the range.
| Powers Supply | 3 V rms (1~7V rms Optional) |
| Input Frequency | 5KHz (400~10KHz Optional) |
| Zero voltage | <20mV |
| Non-linearity (maximum) | <0.6% |
| Repeatability | <0.1% |
| Operating Temperature | Common type: -50℃~ +155℃ High temperature type: -50℃~ +240℃ |
| TC of Sensitivity | <0.01%FS/℃ |
| Structure | Split Structure |
| Wiring | Teflon wire |
| Shock | 1000g@11 ms |
| Vibration | 20g@2000Hz |
| Operating Pressure | 42MPa |




WeChat