Lap welding machines are extensively used in cold-rolling continuous treatment lines of strip steel. In 1998, the first lap welding machine researched and developed by the Company came on the scene, a first example of lap welding machine localization.
Thanks to years of unceasing exploration and research of core technologies for lap welding, the Company has researched, developed and produced three major types of lap welding machine: type C narrow lap welding machine, type O narrow lap welding machine, and narrow-band type C narrow lap welding machine, to meet the welding requirements of different materials of strip steel on various cold-rolling continuous production lines.
The "FMY series" single welding wheel and single roller medium frequency narrow lap welding machine and the "FMYS series" double welding wheel and double roller arrow-lap narrow lap welding machine developed and manufactured by Wuhan Kaiqi have won provincial and municipal scientific progress awards for many times with a number of national invention patents and utility model patents.