Yokota introduces E-Wrenches: Hybrid Technology for tightening threaded fasteners

The range consists of three different sizes of tools, with a total torque range between 7,5 Nm and 90 Nm.

Yokota impulse wrenches are widely used for tightening jobs in the assembly industry, where accurate torque tolerances are necessary. Impulse tools are light, powerful, small and very importantly, have no kick-back. Product liability is essential to carmakers. All tightened joints have to be correct. For this reason all bolted joints must be counted, documented and, of course, tightened with the right clamping force. In order to do this, you need an impulse wrench (with a built-in torque transducer and angle-encoder on the main shaft) connected to a controller. If the controller establishes that the tightened joints do not meet the specifications, it can give a line-stop signal and the joints can be checked manually.

Characteristics:

• Very low weight / torque ratio

• High speed fastening

• Acoustic and LED signals for tightening status indication

• No Kickback

• Electric (brushless) servo drive, freely RPM adjustable in the controller

• Hybrid technology

• 100% check on tightening abnormalities like cross thread, double hit, etc.