Industrial-grade electric screw driver mainly appears in production lines. Therefore they are a good helper for the factory to improve work efficiency. The quality of the tools will have a certain impact on the production of the factory. Therefore, it is necessary to inspect and purchase high-quality electric screwdrivers.
Torque accuracy is an important indicator to ensure the degree of screw fastening. A good electric screwdriver can automatically brake after tightening the correct number of turns, without multiple brakes.
1. The outer packaging of the electric screw driver should be clear in the pattern, not damaged. The plastic box is strong, and the buckle of the opening plastic box should be firm and durable.
2. The appearance of the electric screwdriver should be uniform in color, the surface of the plastic part has no obvious shadow and dent, there should be no scratches or bump marks. The assembly misalignment between the outer parts is ≤0.5mm, the aluminum casting paint is smooth and beautiful without defects, the whole machine surface It should be free of oil and stains. When holding with your hand, the handle of the switch should be flat. The length of the cable should generally be no less than 2 meters.
3. The nameplate parameters of the electric batch shall be the same as those on the CCC certificate. On the one hand, the manufacturer's and manufacturer's detailed address and contact details should be available on the instruction manual. On the other hand, the serial number of the product traceable should be on the nameplate or certificate.
1. Hold the electric screwdriver with your hand, turn on the power, and frequently operate the switch to make the tool start frequently. Observe whether the on/off function of the electric screwdriver switch is reliable. At the same time, observe whether there are any abnormalities in the TV sets and fluorescent lamps on the spot. In order to confirm whether there is a valid radio interference suppressor inside the electric screwdriver.
2. Start the power and handle the electric screwdriver for one minute. In principle, the hand should not feel any abnormal vibration. Observe the reversing spark. The reversing spark should not exceed 3/2, generally from the electric screwdriver. Look inside the air inlet, there should be no obvious arc on the surface of the commutator. There should be no abnormal noise during operation.
3. Repeated torque accuracy or error within 0.3%.
Other steps can be found in this article: How to Check The Electric Screw Driver
