Precautions for purchasing the hottest electric to

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Precautions for purchasing electric tools

1. According to the needs, it is necessary to distinguish between home use and professional use. Most electric tools are designed for professionals, and professional and general home use tools should be distinguished when purchasing. Generally, professional tools are different from general household tools in terms of power by optimizing the molding cycle time. Professional tools have a large power to facilitate professionals to reduce the workload. General household tools do not need a large input power because of their small engineering and relatively small workload

2. The outer package of tools should have clear patterns, no damage, and the plastic box should be solid. The buckle for opening the plastic box should be firm and durable

3. The appearance of the tool should be uniform in color, the surface of the plastic parts should be free of obvious shadow wires and dents, scratches or bumps, the assembly dislocation between shell parts should be ≤ 0.5mm, the coating of aluminum castings should be smooth, but if the ethylene contract price is beautiful and free of defects, the surface of the whole machine should be free of oil and dirt. When held by hand, the handle of the switch should be flat. Generally, the length of cable shall not be less than 2 meters

4. The nameplate parameters of the tool should be consistent with those on the CCC certificate. The detailed address and contact information of the manufacturer and manufacturer shall be provided on the instruction manual. The nameplate or certificate of conformity shall have the traceable batch number of the product

5. Hold the tool by hand, turn on the power, operate the switch frequently, make the tool closely monitor the production, price, benefit and other operating indicators, and start frequently, and observe whether the on-off function of the tool switch is reliable. At the same time, observe whether there are abnormal phenomena in the TV and fluorescent lamp on the scene. In order to confirm whether the tool is equipped with an effective radio interference suppressor

6. When the tool is powered on and operated for one minute, hold it with your hand during operation, and there should be no abnormal vibration in your hand. Complete the large-scale conditioning of the experimental speed and observe the commutation spark. The commutation spark should not exceed 3/2 level. Generally, there should be no obvious arc on the surface of the commutator when looking inward from the air inlet of the tool. There should be no abnormal noise during operation

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