Torque is simply the measure of the radial force exerted on a threaded fastener like a screw or bolt. If too little torque is applied on a fastener, then a vital component could vibrate loose. Alternatively, if too much torque is applied, the fastener or the mounting base could be damaged.
Only precision torque tools like torque wrenches and screwdrivers can give you control over assembled fasteners. Electric torque screwdrivers, such as those from Kolver, are commonly used to assemble electro-mechanical chassis, housings and components.
DIRECT PLUG-IN or SEPARATE CONTROLLER?
For simple entry-level torque control, a direct plug-in model such as Kolver’s ACC Series can be used. These screwdrivers give you a choice of push-to-start or push lever starting, along with consistent torque control. Five different torque and RPM models are available.
For optimal control, use a driver that connects to a separate controller, like Kolver’s FAB Series. The basic EDU1FR control acts as the AC to DC transformer and torque controller, cutting power to the motor as soon as the pre-set torque has been reached. EDU1FR also gives you slow start (0-2 seconds), adjustable speed (60-100%) and visual indicators (green-red) for power and clutch action.
Torque drivers with separate controllers have a longer tool life in addition to providing the level of control necessary for aerospace or critical assembly jobs.