Overview
The MK921 is an industrial torque sensor that turns the twisting load on rotating or stationary shafts into a precise electrical signal for control, efficiency monitoring, and fault warning. Its high-accuracy, stable output supports real-time torque tracking across automated systems and demanding test and production environments.
Key Features
- Converts torque to high-accuracy electrical signal
- Real-time monitoring for automation and fault warning
- Suits rotary and non-rotary measurement
- High accuracy (±0.1%F.S.) for precise measurement
- Stainless steel elastic element for durability and corrosion resistance
- Sealed to IP65 for reliable operation in harsh environments
Applications
Applied on EV motor and gearbox test benches, robot joints and automated tightening, wind-turbine main shafts and gearboxes, and CNC machine spindles.
| Technical Parameters | |||
|---|---|---|---|
| Rated capacity | 10N.m, 20N.m, 30N.m, 50N.m, 100N.m | Output sensitivity | 0-10mV/V |
| Temperature compensated range | -10°C~60°C | Nonlinearity | ±0.1%F.S. |
| Operating temperature range | -20°C~60°C | Repeatability | ±0.1%F.S. |
| Temperature Effect on Output | ±0.1%F.S./10°C | Hysteresis | ±0.1%F.S. |
| Temperature Effect on Zero | ±0.1%F.S./10°C | Creep (30 min) | ±1%F.S./30min |
| Input impedance | 370±30Ω | Zero balance | ±1%F.S. |
| Output impedance | 350±10Ω | Recommended excitation voltage | 24V DC |
| Insulation resistance | ≥2000MΩ 50VDC | Maximum speed | 3000r/min |
| Material | Stainless steel | Safe overload | 120%F.S. |
| Protection class | IP65 | Cable connection | Input: Red / Power + (E+), Black / Power – (E-); Output: Green / Signal + (S+), White / Signal – (S-) |
Dimension Drawing
Frequently Asked Questions
What are the typical applications of the MK921?
Applied on EV motor and gearbox test benches, robot joints and automated tightening, wind-turbine main shafts and gearboxes, and CNC machine spindles.
Which indicator, transmitter or system works with the MK921?
It outputs a standard mV/V strain signal, so it connects to most weighing indicators and transmitters — including those in our Sensor Accessories range.
