It is half-automated double-edge welding machine, which operation process is as follows: First, the strip was inserted the welding die by manual, then push the double-button, the machine run auto cycle, including: Heating device moving up heating the heating device return vacuuming the latitude die close thimble inserting into strip inside cooling outside cooling trimming longitude die open push out the strip with mandril, last, unloading the strip by manual.

The characteristic of this welding machine is as follows: Good flatness welding surface and reliable strength of welding joint, automatic trimming, reliable quality, less work cycle time and high finished-product rate.