120 Reaction Torque Sensor for Torque Wrench-Motor-Engine

120 Reaction Torque Sensor is made of stainless steel or alloy steel. Used for Torque Wrench-Motor-Engine static torque measurement, 0-30-150N.m optional. Sino-Inst supplies various reaction torque sensors and supports customization.

Features of 120 Reaction Torque Sensor

  • The resistance strain is an integrated product composed of sensitive components and integrated circuits. High precision and stable performance
  • Small size, suitable for small and compact spaces
  • Static torque measurement, 0-30-150N.m optional
  • Torque can be measured in both positive and negative directions
  • Both ends are keyway links, easy to install
  • Support customization

Technical Parameters

ParametersTechnical indicators
Range0~30,50,100 150 Nm
Snsitivity1.5±10% mV/V
Zero output±1%F.S.
Non-linear±0.1, 0.3% F.S.
Hysteresis≤±0.05% F.S.
Repeatability≤±0.05% F.S.
Creep≤±0.03% F.S/30min
Temperature Sensitivity Drift0.03% F.S. / 10℃
Zero temperature drift0.03% F.S. / 10℃
Input resistance350,750±10Ω
Input resistance350,700±5Ω
Response frequency100μS
Insulation resistance≥5000MΩ/100VDC
Excitation voltage10VDC (9-15VDC)
Temperature Compensation Range-10 ~ 60℃
Range of working temperature-20 ~ 65℃
Safety overload150% F.S.
Extreme overload200% F.S.
Cable sizeØ5.2×3m
Electrical connectionsRed/E+, Black/E-, Green/S+, White/S-
MaterialAluminum, stainless steel or alloy steel
Other requestcustomizable


120 Reaction Torque Sensor Dimensions

Learn More About 120 Reaction Torque Sensor for Torque Wrench-Motor-Engine

Static torque: After the bolt being tightened stops, the maximum torque achieved by overcoming static friction along the tightening direction is the static torque. Generally, the peak torque we measure with a pointer manual wrench is the static torque.

Typically in an assembly plant, dynamic torque is used during assembly using tool power tools. The torque set on constant torque tools and nutrunners is dynamic torque. The torque measured by the pointer wrench is the static torque. The static torque is generally the basis for the quality inspection department to inspect the assembly quality.

Static Torque: Torque at which the load on the motor shaft does not change as the system accelerates or decelerates.

Torque sensor, also known as torque sensor, torque sensor, torque sensor, torque meter. It is divided into static and external categories. Static torque sensor can also be called torque sensor, torque speed sensor, non-contact torque sensor, rotational torque sensor, etc. .

The static torque sensor is a device that converts the strain caused by the twisting torque into a linearly related electrical signal based on the internal resistance and strain mechanism. Smooth and reliable.

This external point in the static torque sensor means that the controller does not participate in the determination of the relative velocity of the TPU. It is used in testing systems such as testing instruments and uniform motion torque testing. It is praised by customers for its excellent reliability, high measurement precision and high price.

One side of the reaction torque sensor (shaft or union or square head) has no relative speed to the other. When the torque is released, the controller structure will have a relative speed tendency, causing the beam to bend. Facilitating the strain gauges attached to the beam in accordance with It must be bent relative to the number, and then the internal resistance of the strain gauge increases or decreases linearly.

After there is external power distribution, and the full bridge formed inside the controller performs compensation for parameters such as temperature, zero point, and sensitivity, it outputs differential mv (millivolt) current signals. The signal size follows the linear change of the torque size.

Read more about: Torque Transducer Measurement Principle

Torque wrench can detect bolt torque by tightening method and loosening method.
Set the value of the torque wrench according to the technical requirements, and then use the torque wrench to tighten the nut.
When the preset value is reached, a click will be heard. It proves that the fastening force has been reached.

The following is the specific information of the torque wrench to detect the bolt torque:

  1. Tightening method: Use a torque wrench to continue tightening. The instantaneous reading of the bolt movement is the instantaneous reading as the bolt changes from static friction to kinetic friction. This method takes a little training.
  2. Loosening method: Draw a line between the bolt and the mechanism, loosen the bolt about 90 degrees with a torque wrench, and then tighten the bolt so that it is aligned with the marked line for instant reading.

When the existing torque sensor is used, it is mostly used for precision torque measurement. After long-term use, mechanical fatigue often occurs. Therefore, calibration and testing must be carried out.

Calibration method and steps of torque sensor:

  1. Calibration preparation: Calibration tools (weight assembly, torque connector (for folding testing machine), enamel plate (for automatic torque machine), rotating testing machine, torque handle).
  2. Turn on the industrial control host. Open the test software. Make sure the connection between the pressure sensor and the motion card is stable. The value jumps within the error range (0.01gf.cm-0.03gf).
  3. Assemble the auxiliary connector.
  4. Open the software and select the range corresponding to the sensor. Then open the calibration sensor interface and clear the value when the sensor has no load.
  5. Select the appropriate weight according to the range of the sensor. Select a small weight for a sensor with a small range, and a large weight for a large range. For example, 2N.m chooses 200g, 100g weights, 50N.m chooses 500g, 1kg weights. Tie the weights to one end of the connecting piece. Hang the rope on one end of the pulley along the groove circle of the standard piece. Keep it free The external contact state is stable.
  6. Click Calibrate on the software calibration interface, enter the torque value of the calibration weight (gravity*arm), and click OK.
  7. Change the direction to wind the weight, and check the reverse force value. If the difference is large (>0.5gf.cm), take the mean value of the positive and negative force values.
  8. Record the calibration date, and the tool fills in the device sensor calibration record form.
  9. The calibration cycle is generally one year. If it is repaired or adjusted during use, it must be recalibrated.

If you cannot find an answer to your question in our 120 Reaction Torque Sensor for Torque Wrench-Motor-Engine, you can always contact us and we will be with you shortly.

What is the relationship and difference between bolt dynamic torque and static torque?

Anyone who understands the bolt fastening assembly process knows that torque is divided into dynamic torque and static torque. For parts assembly, the dynamic torque is the process input of the engineering R&D department to the manufacturing process. It is not a requirement for the tightening result. The manufacturing process department sets the parameters of the electric tightening gun according to the torque value on the drawing. The peak value displayed on the electric tightening gun at the end of tightening is the dynamic torque.

So the question is, when the electric gun reaches the set torque, how do we know that the bolt or nut has been really tightened and meets the requirements? At this time, the concept of static torque appeared, and regular spot checks should be done during the production process.

For power battery products, this static torque is particularly important. Especially the high-voltage connection part inside the power battery. If the tightening is not in place, it will cause excessive contact internal resistance. During the high-power charging and discharging process of the battery, the contact part will generate a lot of heat. likely to cause thermal runaway. Cause the battery and even the vehicle to burn.

Therefore, the use of dynamic torque and static torque can classify and accurately control torque. The professional explanation of dynamic torque and static torque is as follows:

Dynamic torque is the torque value (range) given by the designer from a technical point of view. Install a dynamic torque transducer on the assembly tool. The peak torque measured by the torque sensor while the bolt is being tightened is the measurement of dynamic torque. For example, the torque at stop set by the electric screwdriver and the fixed torque air trigger and the torque when the preset torque wrench makes a “click” sound after rotating more than 270°.

Static Torque (Static Torque) is the frictional torque when the threaded fasteners in the tightened state continue to be tightened and the rotation between the threaded surfaces has just occurred. To measure, place a direct-reading torque wrench on the freshly tightened fastener. Move smoothly, continuously and evenly in the tightening direction. Apply torque to the torque wrench. until the fastener just begins to turn. The maximum torque indicated during the first few degrees of rotation is a static torque measurement. For example, when using a dial-type torque wrench or a digital-display torque wrench to check the tightening degree of threaded fasteners, memorize the torque indicated by the pointer or the display.

There is a regular mathematical model relationship between dynamic torque and static torque, which varies depending on the connection state. According to statistical laws and years of experience in the automotive industry, the following three relationships are summarized.

a. Soft connection: Static torque is lower than dynamic torque.
b. Hard coupling: Static torque is higher than dynamic torque.
c. Joint joint: Static torque approaches dynamic torque.

The difference between dynamic torque and static torque is mainly in the purpose of measurement. In general, the purpose of dynamic torque measurement is to ensure that the torque during the tightening process is qualified. The purpose of the static torque measurement is to verify whether the dynamic process is subject to variation. At the same time, it ensures the reliability of the clamping force after tightening.

More Featured Torque Sensors For Sale

Sino-Inst is a manufacturer of 120 Reaction Torque Sensor for Torque Wrench-Motor-Engine. We offer more than 20 types of Reaction Torque Sensors. Reaction Torque Sensors can measure a variety of different mechanical power, rotational speed and torque measuring devices.

Reaction Torque Sensor is also called reaction static torque sensor, torque transducer. Mainly used for torque measurement in Static situations. Reaction Torque Sensor, with key shaft connection at both end; suitable for static torque measurement.

Sino-Inst’s Reaction Torque Sensors, made in China, have good quality, with better prices. Our Reaction Torque Sensors are widely used in China, India, Pakistan, USA and other countries.

Sino-Inst’s entire team is well trained, so we can ensure that each customer’s needs are met. If you need any help with your product requirements, whether it is a Reaction Torque Sensor, level sensors, or other equipment, please give us a call.

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120 Reaction Torque Sensor for Torque Wrench-Motor-Engine

120 Reaction Torque Sensor is made of stainless steel or alloy steel. Used for Torque Wrench-Motor-Engine static torque measurement, 0-30-150N.m optional. Sino-Inst supplies various reaction torque sensors and supports customization.

Product SKU: 120 Reaction Torque Sensor for Torque Wrench-Motor-Engine

Product Brand: Sino-Inst

Product Currency: USD

Product Price: 170

Price Valid Until: 2029-09-09

Product In-Stock: InStock

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