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Product Introduction:
Unlike conventional welding methods that require the operator to continuously move a welding torch along the joint, the seam welding machine concentrates the circumferential welding operation within a dedicated electrode assembly. The workpiece is rotated through the welding position while the upper and lower copper electrode wheels work together to process the circular seam. This configuration is particularly suitable for stainless steel ducts and formed components with regular circumferential joints. The vertical layout integrates pneumatic pressure, copper electrodes, transmission components and welding controls into one working area, leaving the operator mainly responsible for workpiece handling and rotation. For 0.5+0.5 mm stainless steel duct fabrication, this dedicated welding concept can be readily incorporated into repetitive production processes.
Features:
1.Optimized for Circumferential Joints: The core working area is designed around circular seams, making the machine suitable for continuous seam processing of duct-shaped workpieces.
2.Copper Electrode Wheel Structure: Copper electrode wheels form the primary welding contact area and provide a dedicated welding zone.
3.Workpiece Rotation During Welding: The operator rotates the duct so that the circumferential joint passes through the electrode area during the welding process.
4.Pneumatically Driven Electrode Movement: The upper cylinder works with the welding assembly to provide the vertical movement required for circumferential seam welding.
5.Dedicated Secondary Circuit and Transformer: The machine incorporates a secondary welding circuit and welding transformer as part of the complete resistance welding system.
6.Suitable for Thin Stainless Steel Ducts: Primarily developed for circumferential welding of 0.5+0.5 mm stainless steel ducts in professional fabrication environments.
Welding Test:



Welding Workpiece: Suitable for stainless steel ducts, straight tubes, reducers, elbows and other cylindrical workpieces with circumferential seams.
Detailed Images:

Upper & Lower Electrode Wheels: The upper and lower copper electrode wheels form the main welding contact area as the duct rotates through the welding position.

Upper Pneumatic Actuator: The top pneumatic cylinder drives the welding assembly vertically and provides the required movement for the upper electrode wheel.

Gas Storage Tanks: Stores and buffers compressed air to provide a stable air supply for the pneumatic system.

Water Circuit Components: Equipped with flow monitors, water pipes, valves and fittings for monitoring and controlling the cooling water circulation.
General Structures:


Technical Parameters:
|
Model Item |
Unit
|
FN-80-H
|
FN-100-H
|
FN-160-H
|
FN-100-E
|
FN-160-E
|
|
Rated power |
KVA
|
80
|
100
|
160
|
100
|
160
|
|
Voltage input |
V
|
380
|
380
|
380
|
380 |
380
|
|
Frequency |
Hz
|
50
|
50
|
50
|
50
|
50
|
|
Max. short circuit current |
KA
|
26
|
30
|
40
|
30
|
40
|
|
Working stroke |
mm |
100 |
100
|
100 |
100 |
100
|
|
Welding efficiency |
m/min
|
0.7-3.9
|
0.7-3.9
|
0.7-3.9
|
0.7-3.9
|
0.7-3.9
|
|
Max. force |
N
|
6000
|
6000
|
7800
|
6000
|
7800
|
|
Max. welding capacity |
mm
|
1.2+1.2
|
1.5+1.5
|
2.0+2.0
|
1.5+1.5
|
2.0+2.0
|
|
Motor Power |
W
|
550
|
750
|
750
|
750
|
400
|
|
Cooling consumption |
L/min
|
8
|
8
|
10
|
8
|
10
|
|
Weight
|
Kg
|
380
|
510
|
630
|
530
|
700
|
Scene Images:


Multi Types of Seam Welders:
Ring Seam Welding Machine
The seam welding machine is designed for circumferential seam welding of corrugated stainless steel pipe fittings, widely used in appliance connectors such as dishwashers and washing machines. It features automatic clamping and rotary welding, offering stable welding, easy operation, and efficient performance for continuous mass production.
Automatic Filter Drum Longitudinal Seam Welding Machine
The seam welding machine is designed for automatic rolling and longitudinal seam welding of low-carbon steel filter drums. Suitable for 0.5–1.5 mm steel sheets, it features pneumatic pressurization and servo-driven roller welding for stable, efficient, and automated production.
Horizontal Automatic Seam Welding Machine
The seam welder is mainly designed for welding shock absorbers or piston cylinder tubes. It is an automatic welding equipment used for welding circular and annular welds, widely used for welding various metal materials with sealing requirements, including stainless steel, low-alloy steel, aluminum, iron, and other alloys. It mainly completes welding by rotating the electrode to drive the workpiece to rotate.
FAQ:
1. When can you arrange shippment?
The shippment is 15 days after getting deopsit, but customized machines should be more than 25 days.









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