Manual arc welding machine with simple structure, cheap price have wide application in industry. Manual arc welding machine is most widely used in China. Following is a few tips for purchase arc welding machine:
1. Weight determines the price
Manual arc welding machine is a relatively mature technology and the structure is relatively simple product, its main manufacturing cost is its transformer and shell. So heavy BX3 is expensive than the BX1. Copper wire, aluminum wire, copper clad aluminum wire machine in weight can also do stick out a mile!
2. Model parameter is just a reference index
The parameter behind the BX1 represents the maximum welding current value. Such as BX1-500 says that the maximum current is 500A, but some manufacturers through a very simple way to make 400A welding machine display 500A. But you can not use the clamp to measure the actual current. Therefore, in comparison with same model welding machine, please refer to the first tips: the heavy weight welding machine is expensive than light!
3. Look transformer materials and processes with same weight welding machine
Materials used in transformer is silicon steel, just open the cover to see if the transformer has scar or not.
4. Brand and price
If as temporary welding, due to use frequency is not high, temporary load rate of transformer requirements are not high, as long as good insulation and safe. Selection of manual arc welding machine, as long as the 3C security marking. As long as production in the factory, especially in the steel plant with the proposed national comprehensive strength, or choose the top ten manufacturers of welding products!