The HT45 for manual operation and the PT4500 for pneumatic power are both stronger, lighter, more compact and accurate than others on the market today. Norbar torque multipliers are a major aid to safety by reducing the need for long levers. Torque is also applied most accurately when it is applied smoothly and slowly and multipliers allow this by removing much of the physical effort from the tightening task. Both Norbar models come complete with an angle gauge, allowing operators to easily monitor the bending torque and angle.
All gears rotate on needle bearings about hardened and ground journal pins.
Another major benefit is that the hand and power drive modules are directly interchangeable, so it is possible to use pneumatic power in the factory but take a hand unit for use on site. There is an extensive range of extensions to allow access to difficult areas and torque transducers for accurate electrical readouts. The HT45 and PT4500 join the existing Norbar family of torque multipliers that is now the most comprehensive in the world. With developments already in hand for ultrasonic stress measurement, including the recently introduced Norbar USM-I electronic stress meter, it will not be long before Norbar will be able to introduce powered wrenches that cut off on stress rather than torque. Last updated 23rd November 1999.