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ESMSNJ03A Non-continuous Rotation Measurement Dual-Flange Static Torque Sensor

The ESMSNJ03A double-flange static torque sensor adopts a two-end flange structure design, specifically developed for precise torque measurement under stationary or low-speed conditions. The sensor integrates a high-precision strain gauge Wheatstone bridge internally. When torque is applied, the elastomer undergoes slight deformation, converting the torque signal into a standard electrical signal output. It features fast response, good stability, and strong resistance to eccentric loads. The overall structure is compact and robust, easy to install, and can be directly connected in series with the tested equipment without additional mounting bases, effectively ensuring coaxiality. The product supports multiple signal output modes, has temperature compensation and overload protection functions, and is suitable for complex industrial environments. It is widely used in valve opening-closing torque testing, bolt tightening verification, static loading tests of gear reducers, torque calibration rigs, and various static torque monitoring scenarios. It is suitable for mechanical manufacturing, assembly inspection, automated equipment, and other fields, providing reliable data support for static torque measurement.

    Working Principle

    The ESMSNJ03A Double Flange Static Torque Sensor is based on the principle of resistive strain. When torque is applied to the sensor, the internal elastic body deforms, and the strain gauges attached to the elastic body also deform, thereby changing their resistance. The Wheatstone bridge composed of the strain gauges converts the resistance change into a voltage signal, which is then amplified, filtered, and converted by the signal processing circuit, ultimately outputting an electrical signal that has a linear relationship with the torque.

    Product Features

      1. Double-flange structure, easy installation
      Both ends are directly connected in series with the equipment flanges, no base support required, good coaxiality, and small installation space.

      2. Static measurement, high stability
      Specifically designed for stationary or low-speed intermittent conditions, no slip ring leads, simple structure, long service life, and low failure rate.

      3. High precision and high signal-to-noise ratio
      Built-in high-precision strain gauge bridge with temperature compensation circuit, measurement accuracy can reach 0.1%–0.5% F.S, output signal is stable.

      4. Strong resistance to eccentric load and bending moment
      Flanges have good rigidity, insensitive to additional bending moments and lateral forces, suitable for harsh industrial installation conditions.

      5. Multiple ranges and signal outputs
      Ranges cover 10–5000 N·m and above, standard outputs such as 4–20mA, ±5/±10V, RS485/CAN available.

      6. Suitable for harsh environments
      Fully sealed housing, dustproof and moisture-proof, impact-resistant, vibration-resistant, wide temperature range -20℃ to 65℃.

      7. Comprehensive safety protection mechanism
      Built-in 120% safety overload capacity, features zero drift compensation and anti-interference design.

       application  scenarios

        1. Calibration test bench for torque wrenches / tightening tools;


        2. Static load torque detection for gearboxes, valves, and couplings;


        3. Torque verification for assembly line bolts / nuts;


        4. Material torsion testing and static torque life testing;


        5. Static torque monitoring for wind power generation and construction machinery.

        Product detail

        ESMSNJ03A (1)ESMSNJ03A (3)ESMLS01-p-2

        Technical Specifications

        ESMSNJ03A Double Flange Static Torque Sensor

        Rated load

        200,500,1000,2000,5000,10000,20000N.m

        Comprehensive precision

        0.1% (linear + hysteresis + repeatability)

        Sensitivity

        1.0~2.0±0.1mV/V

        Creep

        ±0.05 %FS/30min

        Zero output

        ±1%F·S

        Zero temperature effect

        ±0.02 %FS/10℃

        Output temperature effect

        ±0.02 %FS/10℃

        Operating temperature

        -20℃~+70℃

        input resistance

        735±35Ω

        Output impedance

        700±3Ω

        Insulation resistance

        2000MΩ

        Safety overload

        150%F·S

        Bridge voltage

        10VDC

        Material

        alloy steel

        Wiring

        Power (+) red line power (-) green line

        Output (+) yellow line output (-) white line

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