1.Introduction for Longitudinal seam welding machine:

1.1 Key-type pneumatic pressing device is applied to calmp the work piece. This device provides force evenly to work piece and prevents

deformation.

1.2 It is widely applied in high quality welding and low-deformation straight seam. Use in such fi eld: petrochemical industry, solar water

heater manufactor, pipeline and automobile industry.

1.3 Controlled by PLC, driven by DC motor, and stepless speed regulation, with control system to realize automatic welding,and equipped

with straight oscillator for optional choice.

1.4 With different protection lining on the lower side, the welding seam can be welded through. Therefore the both sides of the welding

seam can be shaped with single-side welding.

1.5 Its welding thickness is 1mm~8mm, welding speed is 0.2mm~2.2m/min.

1.6 Longitudinal automatic welding machine use several welding method, such as argon submerged welding, gas shielded welding and

plasma welding etc.

2.Technical parameter for Longitudinal seam welding machine

3.Characters for Longitudinal seam welding machine:

3.1. The welding host adopts a cantilever structure. The two cantilever beams are welded and then undergo annealing stress relief treatment to ensure that the crossbeam does not deform over a long period of time.

3.2. The pneumatic key-type clamping structure is arranged closely along both sides of the straight seam, ensuring uniform clamping of the对接 weld seam throughout the welding length； the spacing between the left and right key pressing fingers can be adjusted to adapt to the welding of different workpieces.

3.3. According to the thickness of the workpiece， an airbag type or cylinder type can be used to ensure sufficient clamping force and prevent thermal deformation during the welding process.

3.4. The welding core shaft is embedded with a copper template， providing a back gas protection function for the weld seam； different welding process slots are processed for the cylinder or flat workpiece to achieve single-sided welding and double-sided forming.

3.5. The spacing between the welding core shaft and the key pressing fingers can be adjusted to meet the welding requirements of different workpieces.

3.6. The welding gun movement is driven by a DC servo motor， with gear rack transmission. The track surface is ground for smooth movement， ensuring stable and reliable welding. All air pipes and cables are placed in the conveyor chain， maintaining a neat and beautiful appearance， while avoiding wire breakage.