HFS-ST3
Static Torque Sensor
The HFS-ST3 measures static torque in non-continuous rotation applications. Its keyed shafts provide the mechanical connection, with an analogue voltage signal expressed relative to the excitation voltage.
- Nonlinearity configurations
- ±0.3–±0.5% FS
- Output type
- Analogue voltage
- Output-resistance configurations
- 350 ±5 Ω / 700 ±5 Ω
Supplied by WKSENSOR. Ask us about pricing, availability and delivery.
Product overview
Keyed-shaft torque sensor
Opposing shaft keyways, a cylindrical body and a circular connector on the top mounting plate.
- Static measurement
- Torque measurement for static, non-continuous rotation duty.
- Mechanical connection
- Single-key, double-key and spline connection configurations.
Shaft and key sizes by torque capacity
Key dimensions are width × height × length. Dimensional units require confirmation. Confirm the shaft, key and mounting dimensions for your selected torque capacity before specifying couplings.
1–10 N·m
- ØA / ØD
- Ø40 / Ø10
- L / L1
- 75 / 20
- Single key
- 3×3×16
20–100 N·m
- ØA / ØD
- Ø58 / Ø18
- L / L1
- 120 / 30
- Single key
- 6×6×25
200–300 N·m
- ØA / ØD
- Ø65 / Ø28
- L / L1
- 130 / 35
- Double key
- 8×7×30
500–700 N·m
- ØA / ØD
- Ø75 / Ø38
- L / L1
- 140 / 40
- Double key
- 10×8×35
1 kN·m
- ØA / ØD
- Ø85 / Ø48
- L / L1
- 175 / 58
- Double key
- 14×9×50
2–3 kN·m
- ØA / ØD
- Ø98 / Ø60
- L / L1
- 205 / 73
- Double key
- 18×11×65
5–7 kN·m
- ØA / ØD
- Ø114 / Ø75
- L / L1
- 270 / 95
- Double key
- 20×12×95
10 kN·m
- ØA / ØD
- Ø135 / Ø100
- L / L1
- 330 / 135
- Double key
- 28×16×125
Configuration and selection
- Rated torque
- 1 N·m–10 kN·m configurations, with load-dependent shaft and body geometry.
- Connection
- Single key, double key or spline.
- Signal
- Analogue voltage with 1.5–2.0 ±0.05 mV/V sensitivity configurations and 5–12 V excitation.
- Material and cable
- Alloy steel or stainless steel; 3 m cable option.
Technical reference
Specifications and options
| Parameter | Specification or option |
|---|---|
| Model | HFS-ST3 |
| Measurement duty | Static torque; non-continuous rotation |
| Rated-torque configurations | 1 N·m–10 kN·m |
| Output type | Analogue voltage |
| Sensitivity configurations | 1.5–2.0 ±0.05 mV/V |
| Nonlinearity configurations | ±0.3–±0.5% FS |
| Hysteresis error | ±0.03% FS |
| Repeatability error | ±0.03% FS |
| Creep | ±0.2% FS |
| Zero-temperature coefficient | ±0.1% FS / 10 °C |
| Sensitivity-temperature coefficient | ±0.1% FS / 10 °C |
| Input-resistance configurations | 380 ±30 Ω / 750 ±30 Ω |
| Output-resistance configurations | 350 ±5 Ω / 700 ±5 Ω |
| Excitation voltage | 5–12 V |
| Operating temperature | −20–70 °C |
| Safe overload | 150% FS |
| Insulation resistance | ≥2000 MΩ |
| Material options | Alloy steel / stainless steel |
| Enclosure protection | IP65 |
| Mechanical connection options | Single key / double key / spline |
| Cable option | 3 m |
| Brand | WKSENSOR |
| Product reference | HH-759239007592 |
Application scenarios
Static torque measurement for non-continuous rotation duty, with robotics, injection moulding, automotive equipment, water conservancy, batching and lifting among the applications.
Lifting equipment
Crane and suspended lifting hook.
