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PROTO Electronic Torque Wrenches

Electronic torque wrenches designed for fastening nuts and bolts at accurate torque pressures for automotive, industrial machinery and hydraulic equipment calibration. Digital display with visual alerts & audible buzzer for delivering accurate torque output. Available in 0.01, 0.1 and 1 N-m graduation variants

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To avoid over-tightening or under-tightening fasteners, Proto electronic torque wrenches provide a precise torque reading on a digital display. They measure turning force electronically for greater...Read more
PROTO -

Electronic Dial Torque Wrenches

PROTO J6349A
PROTO J6351B
PROTO J6346C
PROTO J6339D
StyleModelDrive SizeGraduationsMeasurement TypeOverall LengthVisual/audible IndicatorsPrice (inc. VAT)
AJ63491"1 NmFoot-Pound/Newton-Meter77"Yellow, Green and Red Light, Beep£3,609.46
BJ63511"1 NmInch-Pound/Newton-Meter125"Yellow Light On Approach, Green and Beep at Target, Red and Intermittent Beep When Over Torqued£4,692.16
CJ63461/2"0.1 NmInch-Pound/Newton-Meter22"Yellow Light On Approach, Green and Beep at Target, Red and Intermittent Beep When Over Torqued£1,126.42
DJ63391/4"0.01 NmInch-Pound/Newton-Meter11"Yellow Light On Approach, Green and Beep at Target, Red and Intermittent Beep When Over Torqued£831.43
DJ63421/4"0.01 NmInch-Pound/Newton-Meter11"Yellow Light On Approach, Green and Beep at Target, Red and Intermittent Beep When Over Torqued£931.18
AJ63473/4"0.1 NmInch-Pound/Newton-Meter22"Yellow Light On Approach, Green and Beep at Target, Red and Intermittent Beep When Over Torqued£2,539.14
DJ6345A3/8"0.01 NmInch-Pound/Newton-Meter11"Yellow Light On Approach, Green and Beep at Target, Red and Intermittent Beep When Over Torqued£955.12
CJ6345B3/8"0.1 NmInch-Pound/Newton-Meter22"Yellow Light On Approach, Green and Beep at Target, Red and Intermittent Beep When Over Torqued£1,060.05
DJ63453/8"0.01 NmInch-Pound/Newton-Meter11"Yellow Light On Approach, Green and Beep at Target, Red and Intermittent Beep When Over Torqued£953.66
PROTO -

Electronic Torque Wrenches

Proto electronic torque wrenches are used for adjusting nuts and bolts, as well as for providing additional leverage to tighten difficult and hard-to-reach parts. These torque wrenches have an easy-to-read LCD screen with large digits that offers three operating modes: Track Mode, Peak Hold and Auto Clear. They are further equipped with an audible buzzer which helps in identifying when the desired torque target zones are approaching or met. Choose from a broad range of these wrenches avaiable in 14 inch, 16.5 inch and 20 inch overall lengths on Raptor Supplies.

PROTO J6114BTA
PROTO J6112BTB
PROTO J6020EAC
PROTO JH4-250RBD
PROTO J6012EFXE
PROTO J6014EFXF
PROTO J6014EG
PROTO J6061EFXH
StyleModelAccuracyDrive SizeHead TypeOverall LengthPower SourceVisual/audible IndicatorsPrice (inc. VAT)
AJ6114BT------£1,118.25
BJ6112BT------£980.29
CJ6020EA------£2,926.18
DJH4-250RB+/-2%1/4"Ratcheting Reversible20.5"AA BatteryYellow Light On Approach, Green and Beep at Target, Red and Intermittent Beep When Over Torqued£783.69
EJ6012EFX+/- 2%3/8"Fixed16 45/64"(2) AA BatteriesLED Lights w/Buzzer£703.08
FJ6014EFX+/- 2%1/2"Fixed25 13/16"(2) AA BatteriesLED Lights w/Buzzer£784.31
GJ6014E+/- 2%1/2"Fixed25 39/64"(2) AA BatteriesLED Lights w/Buzzer£844.03
HJ6061EFX+/- 2%1/4"Fixed15 39/64"(2) AA BatteriesLED Lights w/Buzzer£621.16

Features

  • Their extended operating range is displayed on the LCD screen in large, easy-to-read digits. The readings are measured in ft-lb and N-m units.
  • They provide +/-1% accuracy in both directions. The accuracy of some models extends to +/-2%.
  • The accuracy ranges from 10 to 100% of the full scale.
  • These units have a patented rotary bezel that allows the LCD and keypad to rotate 360 degrees for easy viewing.
  • The torque target zone, which can be adjusted from 1% to 10%, indicates when the desired torque limit is approaching.
  • They have visual and audible alerts, with the 'Yellow' light indicating the low end of the zone, the 'Green' light & buzzer sound indicating that the target has been reached and the 'Red' light with intermittent buzzer indicating over-torquing.
  • Users can target torque settings with the press of a single button.
  • These wrenches feature torsion drive strain gauge technology for improved accuracy.
  • To protect the display, the rotary dial is surrounded by metal walls.
  • These units have a fast sampling rate to maintain high accuracy.

Working Mechanism

  • These units have a digital readout screen which allows the user to program the torque limit.
  • A strain gauge attached to the torsion rod sends a signal to the transducer, which determines the force of torque per unit and displays it on the screen.
  • The LED lights & audible alert signal notify the user when the desired torque setting is approaching / has been reached.

Standards and Approvals

  • ASME B107.28
  • ISO 6789

Frequently Asked Questions

Can you calibrate a torque wrench yourself?

To calibrate a torque wrench on your own, determine the calibration ratio and multiply it by the required bolt torque.

How do you set the torque on a torque wrench?

  • Turn the knob at the wrench handle's end clockwise.
  • This tightens the wrench and sets the torque level on the wrench.
  • If you need to re-adjust the torque, loosen the knob and turn the handle to the desired torque.

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