1. Explosion -proof electric gourd signs or tonnage cards are made of brass or stainless steel. The thickness should not be less than 1mm.                                                                                                                                        2. When the explosion -proof level is IIC, the wheel pedal and margin part should be made of copper alloys or other sparkless materials that do not ignite the explosive gas mixture due to impact and friction.3. Explosion -proof electric gourd cable rolling wheels and running -and -the -operated stroke -limited switches shall be made of engineering plastics with bronze, brass or surface resistance than 109Ω. When the explosion -proof level is IIC, the traction line of the cable should be Use stainless steel wire rope.

4. Rubber buffer shall comply with the regulations of JB/T8110.2, polyurethane buffer shall comply with the regulations of JB/T1.833, and the surface resistance shall not be greater than 109Ω.

5. For explosion -proof electric gourds running manually by running cars, the chain or sprockets should be used for no spark materials, such as stainless steel and other materials.

Explosion -proof electric gourd has a compact structure, a small weight, a small volume, and a large lifting ability. When the factory is full of explosive mixtures, under the premise of ensuring safety, it is a favorable tool for improving labor conditions and increasing labor productivity. Therefore, it becomes a reasonable process process.