A German customer needs an automatic welder to weld automotive exhaust hot-end sensing nuts. Initially they searched suppliers in Germany and other European countries. They got equipment quotations too high for them to bear. Then the customer started to look for suppliers in China which have good technology and reputation to offer them a customized welding equipment. This way they can reduce purchase costs and labor costs, while improve welding efficiency.
At that time, in China, the welding of hot end of exhaust gas was mainly carried out by robot gas shielded welding. After welding, it is easy to have problems of blowhole and welding slag, followed by low efficiency. And the appearance of the products is not good-looking, with bulges and even deformation. If a heat shield is required at the hot end, it is difficult to control the flanging of the heat shield.
The German customer found HAIFEI company. HAIFEI understood clearly the specific requirements of the customer through patient and deep communication, and issued a technical proposal. HAIFEI company specially designed a dual head energy storage spot welder, which can be used to weld different types of oxygen sensing nuts in hot end exhaust system of commercial vehicles and passenger cars. Through the field test of German customers, the stable and efficient welding effect has been fully affirmed by German customer. The welding efficiency of this energy storage spot welding machine is 30% higher than it of other welding methods.
