News & Technicals

Installation Requirement of Resistance Welding Machine

Installation
The Resistance Welding Machine should be installed near by the substation (power transformer), on a flat ground with little wet dust and no harmful gas, and must be fixed with anchor bolts. When the welding machine and welding tool are combined and installed, the welding tool must be completely insulated from the welding machine body. In order to meet the requirements of the welding machine, users need to provide corresponding technical conditions according to the requirements of various types of equipment
Power supply connection
Connect the power supply switch to the power terminal on the back of the welder.
The selection of power supply capacity and connecting wire should be guaranteed: when welding, the voltage drop of the primary voltage does not exceed 10% of the normal rated primary voltage.
Each welding machine must be equipped with a power switch and a corresponding capacity fuse.
Cooling water piping
Connect the water supply and drainage rubber pipes to the water supply and drainage ports on the side of the machine body, and connect them firmly to prevent water leakage. Please use high-quality water (electrical resistivity above 5kΩ.cm) that does not contain impurities (especially high salt and calcium) to avoid scale formation in the water pipe for a long time and cause electric leakage accidents. In particular, the groundwater near the coast has a high salt content, so full attention should be paid.
Piping for compressed air
After thoroughly removing the chips and dust on the piping, connect the air inlet rubber tube to the air inlet on the side of the welder body to prevent air leakage. Please use a rubber hose for compressed air with a pressure resistance of 0.7 MPa or more. The air supply pressure must be between 0.5 and 0.7 MPa. If the air compressor capacity or piping size is too small, insufficient air supply will cause the pressure head to move slowly.
Foot switch connection
Insert the foot switch plug into the socket under the front of the body, and tighten it to fix it.
Grounded
To prevent the operator from getting an electric shock when the insulation resistance is reduced, grounding is very important. Use a ground wire of 14mm2 or more to effectively ground the electric resistance welding machine.