Automatic Cylinder Barrel Seam Welding Equipment

The MAG cylinder circumferential welding machine is a semi-automatic or fully automatic specialized welding equipment, primarily used for welding circumferential welds on cylinders and components (such as end caps, guide sleeves, lugs, flanges, etc.). It achieves uniform formation of one or more weld rings or multiple layers by rotating the workpiece and fixing (or oscillating) the welding torch position. This equipment is widely used in the manufacturing of hydraulic cylinders and pneumatic cylinders in fields such as engineering machinery, mining machinery, hydraulic systems, and automotive parts.

1.Headstock and Tailstock

• Headstock: Includes the spindle, variable frequency motor, and conductive mechanism, driving the workpiece rotation.
• Tailstock: Hydraulically clamps the workpiece to ensure coaxiality.

2.Welding torch adjustment and oscillation mechanism

• Three-dimensional fine-tuning slide (up/down, left/right, forward/backward).
• Oscillator (stepper or servo drive) to achieve weld seam coverage.

3.Control System

• PLC (Siemens, Mitsubishi, Omron, etc.) controls rotation, clamping, welding start/stop, oscillation, and other actions.
• Touchscreen is used for parameter setting and monitoring.

• 4.Auxiliary institutions
• Protective cover: It can effectively block the arc light generated by welding, and at the same time form a semi-enclosed space to prevent welding fumes from escaping, thereby protecting the operator from radiation and dust hazards.
• The suppoter :Equipped with universal ball bearings, it enables flexible multi-directional feeding and positioning, effectively reducing workpiece friction and improving the convenience and efficiency of welding operations. It can also adapt to workpieces of different lengths.

• High efficiency: A single clamping operation completes the entire circumference welding, significantly reducing manual spot welding and repair welding time.
• Stable weld quality: Uniform rotation speed and controllable oscillation trajectory avoid the pauses or arc deviations common in manual welding.
• High adaptability: Adaptable to cylinders of different diameters and lengths by changing fixtures or adjusting the tailstock.
• Multi-layer welding capability: Programmable multi-layer, multi-pass welding meets the welding requirements of thick-walled cylinders.
• Good gas shielding: MAG welding (typically using an Ar+CO₂ mixture) produces minimal spatter and deep penetration, suitable for medium-thick carbon steel and low-alloy steel plates.
• Simple operation: Ordinary welders can operate the system after short-term training, reducing reliance on highly skilled welders.

Automatic cylinder seam welding machine 

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