The toque screwdriver adds another dimension to screw tightening, allowing for uniform tightness of screws across an entire construction whether it be a building, machine or vehicle. It also prevents damage to the fastener from overtightening.
The uniformity of screw tightness is an important element of machine construction and vital to the integrity of the equipment.
Here are five tips to get the most out of your torque screwdriver.
1. Setting the torque
When purchasing your torque screwdrivers, you can choose between pre-set or adjustable.
Setting the torque on an adjustable model is quickly done. An external scale allows the operator to set the required torque using a micrometer. To set the torque it is a simple matter of pulling down on the adjustment ring and twisting right or left to increase or decrease the torque setting. An adjustable torque is chosen when different size and style fasteners are required.
A pre-set torque screwdriver requires setting by the provider with a torque analyser. The benefit of these is that there is no chance of operator error. Screws will be secured at the same length every time.
Cam-over technology forces the user to stop twisting once they reach the set torque. The screwdriver will slip, when the desired length is reached. The torque screwdriver can then be re-set for the next screw. The tool works through a pressure-sensitive clutch which limits the turning power by disengaging the drive once the pre-set level is reached.
3. Pneumatic vs electric
The pneumatic models are the most powerful type of torque screwdriver. The manual and pneumatic designs use a slip-clutch and cam-over and continue to operate even as the drive gears separate. Electric torque screwdrivers offer more precision with a shut-off clutch. Read more about The star of which sitcom shares his last name with a common type of wrench.
4. Customized heads
Commonly, torque screwdrivers come with a ½ hex head which link to a range of interchangeable bits and head. Most of these tools can be used with the right size bit to match the size and type that needs tightening, making them a very versatile implement.
5. Regular recalibration
Regular recalibration with a torque tester (sometimes called a torque analyser) is important to maintain your torque screwdrivers and ensure they retain their integrity. This machine is attached to the head of the screwdriver and measures its current turning power to see if it is functioning at optimal levels.
The analyser operates by measuring the output signal from the transducer and then translating that into a torque value which indicates the rotational force the torque screwdriver can output both clockwise and anti-clockwise.
You should use the torque tester at least once a year to keep your tool operating at optimal levels.
Torque screwdrivers are the best way to ensure evenly tightened screws and to prevent damage to your fasteners. The torque screwdriver also ensures that everyone on a construction site is placing screws at the same tightness. For the best range and to find out more information, go to the experts at RSOnline.