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Hand Torque Multiplier (Square drive)


   



WREN wrench LogoHT Series:HT-3 Norbar highwayman Hand torque Multiplier

Torque 100 to over 6,000 Nm
Square Drive sizes:
1/2", 3/4",  1",  1-1/2"

hydralic wrench tool

Hand torque multipliers offers torque multiplication using standard hand torque-wrenches, with great accuracy at a budget price.

The Norbar Hand Torque Multiplier offers the workshop serious torque solutions for the Heavy Maintenance Industry.


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Norbar Highwayman Hand Multiplier
Download Norbar HT-3 Flyer

The HT-5 Hand Torque Multiplier

is a good alternative for applications where standard wrenches can't gain correct torque due to space restrictions. Usage is simple:Input to the multiplier is via a ratchet torque wrench set to one fifth of the desired output torque.
  • Accuracy better than ±4%
  • HT3 supplied with two reaction bar styles for maximum versatility
  • Robust industrial tool equals low maintenance & long life
  • Supplied in a carrying case
  • 1300 N.m version has a spare 3/4" output square included in the kit.

Norbar HAND TORQUE MULTIPLIER - 5:1 Ratio HT-3
Model Torque Output Max Gear
Ratio		 Square Drive Size Dimensions Weight Kg
Ft Lbs Nm Input Output A (mm) B (mm) C (mm) D (mm)
HT3 - 1300 100 to 960 130 to 1,300 5:1 1⁄2" 3⁄4" 108 126 210 180 4.3
HT3- 2700 200 to 2,000 270 to 2,700 5:1 3⁄4" 1" 108 128 210 186 4.3
torque multiplier in box

illustration of dimensions
The HT-5 Hand Torque Multiplier comes complete with 2 Reaction Arms.
One standard dog-leg bar generally used to locate against the nut next to the nut being tightened.

The other , a longer bar type arm for locating against a housing or any Reaction Point near the Nut being tighened.


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Norbar Torque Multiplier
Download Norbar HT-4 Flyer

The Norbar Torque Multiplier HT4

series offers the workplace serious torque solutions. Higher ratios means even smaller torque wrenches can be used. The HT-4 also features a Anti Backlash pawl to retain any wind-up. Available in 15:1 or 25:1 gear ratios more torque is for less effort. Supplied in lockable carry case.
  • Guaranteed accuracy of better than +/-4%,
  • High ratios allow use of a small torque wrench.
  • Minimal maintenance and long life due to the robust construction.
  • Supplied in a carry case with replacement square drive.
  • Anti Wind-Up Ratchet (Anti Backlash) fitted - safer and practical operation.
  • Angle protractor for easy torque and angle tightening.

Norbar HAND TORQUE MULTIPLIERS - High Ratio HT-4
Model Torque Output Max Ratio Square Drive Size Dimensions Weight Kg

Ft Lbs
Nm		 Input
Output
A (mm) B (mm) C (mm) D (mm)
HT4-15.5 220 to 2,200 300 to 3,000 15.5:1 1⁄2" 1" 108 156 450 n/a 8
HT4-26 330 to 3,300 450 to 4,500 26:1 1⁄2" 1" 108 173 450 n/a 8.9
multiplier wrenchThe high-efficiency planetary gear-sets achieve high output torque from low input torque. The operator is protected by an anti-backlash (anti-windup) mechanism within the device. These multipliers have a torque multiplier accuracy of ± 4%. The torque multipliers are reversible - can tighten or loosen bolts. Single reaction bar.
Download Norbar HT-4 Flyer


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Norbar Standard Range Multiplier Download
Norbar Standard Series Flyer

Norbar Standard Series MULTIPLIERS - High Torque Ratios

  • Electronic torque transducers can be fitted for precise torque monitoring.
  • True torque multiplication guaranteed better than +/-4%.
  • High ratios allow the use of a small torque wrench, multipliers can be used where access is limited.
  • Anti Wind-Up Ratchet available on models of 25:1 ratio and above.

Norbar Standard Series MULTIPLIERS - High Torque Ratios
Model Torque Max Ratio Square Drive Size Dimensions Tool
Weight
Kg		 Reaction
Arm Weight
Kg
Nm Ft Lb Input Output A B C Min C max
1 1700 1250 5:1 1⁄2" 3⁄4" 108 106 83 217 3 2.2
2/5 1700 1250 5:1 3⁄4" 1" 108 126 83 217 3 2.2
2/25
Fitted with AWUR 		1700 1250 25:1 1⁄2" 1" 108 141.5 83 217 5.6 2.2
5/5 3400 2500 5:1 3⁄4" 1" 119 142.1 86 264 4.7 2.5
5/25
Fitted with AWUR 		3400 2500 25:1 1⁄2" 1" 119 167.6 86 264 7.5 2.5
6/5 3400 2500 5:1 3⁄4" 1-1⁄2" 119 144.7 86 264 4.7 2.5
6/25
Fitted with AWUR 		3400 2500 25:1 1⁄2" 1-1⁄2" 119 172 86 264 7.5 2.5

AWUR = Anti Wind-Up Ratchet

Norbar 'Handtorque' multipliers employ multiple stages of epicyclic gearing to give a wide range of torque outputs and ratios to suit most applications. Ratios quoted are always the torque multiplication ratio, not the velocity ratio as given for some competitor's products. For example, the velocity ratio may be 29.8:1 to give a torque multiplication of 25:1 +/-4%.

 Multiplier Standard Range illustration



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Entry Level . . . The Norbar Highwayman Series

Entry Level . . . The Norbar highwayman series Torque Multipliers offer handy solutions for general engineering. Driven by a hand torque wrench the 5:1 gear ratio provides a multiplying torque gain. Perfect for hard to get to areas and to improve torque accuacy when doing up bolting. Also ideal for non powered sites or workshops.
Supplied as a kit. Included is a lockable black case, drop down dog leg reaction arm and a straight bar reaction arm. Hand Torque wrench not included. Impact Sockets should be used.

multiplier application
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The Norbar Highwayman Series (HT) Torque Multipliers utilise Impact sockets plus in-Hex Drivers.
Hire Torque Tools Aust can supply all Tooling overnight via Road Express to QLD Queensland Brisbane Mackay, Perth, Western Australia Karratha, VIC, Victoria, Melbourne and Geelong, Tasmania Hobart Burnie Launceston, SA South Australia Roxby Downs and Whyalla .

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