High precision automatic longitudinal straight seam welding machine 
The longitudinal seam welding machine for the cylinder is docked with the longitudinal seam of the flat plate. Adapt to gas welding, submerged arc welding, argon arc welding, and other welding methods. Single-sided welding and two-sided forming ensure welding quality. There is a back gas protection device to protect the workpiece from deformation during the welding process and the appearance of the reverse weld. The equipment adopts PLC control to realize automatic welding operation! Widely cited in
petrochemical, pressure vessels, hot water tanks, electric power construction, stainless steel products, and other industries.FAQ
1.Are you a factory or trading company?
We are a factory and we have lots of know how knowledge.

2.Do you accept customized products? 
Yes, our machine is steady and reliable.

3.Do you have user manual book ?
Yes, user manual at present is written in English.  

4.Can you provide OEM/ODM service? 
Yes, we are factory and we have lots of OEM or ODM experience.

5.What is your packing?
 You can choose your transport and distribution by air,sea or land.Curtain rods

6.What's the package?
Film packaging+wooden case. Fumigation-free plywood case is also available.
7.How to operate this machine ?
We provide operating video, user manual or telephone calls to help you. All these is written or speaking in English at present. On site service is also available.