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The basics of preset torque wrench


Release Time:

Apr 01,2021

One. Torque board-also called torque board or torque board. Torque is the product of force and distance. When tightening ribbed fasteners such as screws, bolts and nuts, it is required to control the applied torque to ensure that the ribbed is fastened and not The rib is damaged due to excessive torque, so the torque board is used to operate. First set the maximum limit of a required torque value. When the applied torque reaches the set value, the board will snap the "card" or bend a little angle at the board connection, which means that it has been tightened and no more force is applied.

One. Torque board-also called torque board or torque board. Torque is the product of force and distance. When tightening ribbed fasteners such as screws, bolts and nuts, it is required to control the applied torque to ensure that the ribbed is fastened and not The rib is damaged due to excessive torque, so the torque board is used to operate. First set the maximum limit of a required torque value. When the applied torque reaches the set value, the board will snap the "card" or bend a little angle at the board connection, which means that it has been tightened and no more force is applied.

Features of the preset torque wrench

1. With preset torque data and dynamic and static installation. When the tightening torque of the fastener reaches the preset data, it can automatically send a signal "click"(click), accompanied by obvious hand stroke feeling oscillation, prompting the end of the operation. After the utility force is removed, the relevant parts of the board can be automatically reset.

2. can switch two directions. Toggle the ratchet steering switch, the board can be counter-clockwise force.

3. male and imperial (N.m, lbf.ft) double scale marks; Handle differential scale line. Readings are clear and precise.

4, boron steel materials forging, perseverance, long life. Calibration is traced back to the National Technical Standards Institute (NBS) of the Western Powers.

5. The accuracy conforms to ISO 6789:1992. ASME B107.14, GGG-W-686. 4%. The use method of preset torque board

1. Determine the preset torque value according to the required torque value of the workpiece.

When the preset torque value is 2., pull down the determination ring on the board handle, rotate the handle together, and schedule the main scale line and differential scale line data of the scale to the required torque value. After scheduling, loosen the determination ring and the handle will be automatically determined.

3. Install a response standard sleeve on the square tenon of the board, cover the fastener, and then slowly exert force on the handle. External force must be applied in the direction of the arrow indicated. When the tightening signal "click" (has reached the preset torque value), intermittent force. One job ends.

4. When the large standard torque board is used, a long sleeve rod can be added to save effort.

5. If it is not necessary for a long time, schedule the scale line to return to the minimum torque data.

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