Hangkai HKVN-70 Static Torque Sensor, 100Nm / 200Nm
Hangkai HKVN-70 Static Torque Sensor, 100Nm / 200Nm
Hangkai Microelectronic
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The Hangkai Microelectronic HKVN-70 is a thin, hollow-center static torque sensor for single-axis torque measurement. Choose a nominal 100N·m or 200N·m range for mechanical testing and robotic joint torque monitoring. Its strain-sensing output is specified in mV/V and requires compatible external excitation and signal conditioning; this is not a six-axis force sensor or a complete USB measurement instrument.
Thin Stainless-Steel Structure
The supplier describes one-piece stainless-steel construction, low cross-talk and resistance to lateral loads and bending moments. Photos show front and rear faces of the sensing structure. A pair of views illustrates one product, not a two-sensor pack. The drawing shows a 70mm outer diameter and an 8.00mm overall thickness callout, with different stepped face dimensions.
Range-Dependent Specifications
| Parameter | 100N·m version | 200N·m version |
|---|---|---|
| Rated torque (N·m) | 100 | 200 |
| Bending stiffness (kN·m/rad) | 17.2 | 34.7 |
| Torsional stiffness (kN·m/rad) | 125.2 | 258 |
| Ultimate bending moment (N·m) | 62 | 131 |
| Ultimate axial force (N) | 3500 | 7000 |
| Sensor mass (g) | 110 | 120 |
Shared Supplier Specifications
| Accuracy class | 0.3 |
|---|---|
| Output sensitivity | 1.0 ± 0.2mV/V |
| Temperature effect on zero output | ±0.05% FS / 10°C |
| Input impedance | 2020 ± 20Ω |
| Output impedance | 2000 ± 20Ω |
| Operating temperature | −10 to +80°C |
| Cross-talk error | ±0.1% FS, source condition Fz = 100 / 200N |
| Ultimate torque | 200% FS |
| Excitation / working voltage | 5–12VDC |
| Protection rating | IP65, supplier stated |
| Material | Stainless steel |
FS means full scale. Ultimate load figures describe supplier limits and must not be used as continuous operating ratings. The 0.3 accuracy-class notation is reproduced from the source, which does not provide a named certification standard. The source cross-talk condition is shown exactly as Fz = 100/200N; do not interpret it as a separate force-measurement channel.
Mounting and Signal Integration
The mechanical drawing includes a central Ø21.40mm opening, outer pitch-circle and face-step dimensions, twelve Ø3.40mm through holes, eight M4 positions and two M2 positions. Additional locating-hole tolerances and angular callouts appear in the face-specific drawing. Check the actual drawing and delivered sensor before machining; do not infer all holes are interchangeable.
The source feature graphic mentions high-speed acquisition and a standard interface but gives no sample-rate value or digital protocol. The mV/V specification identifies the bridge-level sensitivity; RS485, CAN, USB and EtherCAT electronics are not established as included. Provide suitable excitation, an amplifier or acquisition input, and the correct delivered cable pinout. Avoid applying bending or axial loads beyond the selected model's limits.
Package Contents
One HKVN-70 static torque sensor in the selected 100N·m or 200N·m range. Both source options share the same sensor photo; select by the range label. External transmitter, acquisition system, mounting hardware and power supply are not listed as included.
Visual Details
