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This 1000mm longitudinal straight seam welding machine is custom-made for automatic longitudinal seam welding of thin-wall cylinders, conical barrels, flat plates, and rectangular box workpieces. It features a cantilever annealing stress relief frame with pneumatic key clamping fixture, enabling one-side welding with double-side forming for stainless steel, carbon steel, and aluminum alloy materials.
Compatible with TIG/MIG/MAG welding power sources, this machine is widely used in water storage tank, pressure vessel, fire cylinder, ventilation duct, and kitchen equipment manufacturing industries. The system includes PLC intelligent control with stepless welding speed adjustment.
Technical Specifications
Item
Specification
Model
LSW-1000
Effective Welding Length
1000mm
Applicable Workpiece Inner Diameter
Φ100mm-Φ1200mm
Applicable Plate Thickness
0.5mm-3.0mm (Stainless Steel)
Welding Travel Drive
Servo Motor + Rack & Pinion
Welding Speed Range
5-15 mm/s stepless adjustment
Clamping Mode
Pneumatic Key Clamping (Optional Airbag Clamping)
Control System
PLC + Touch Screen
Support Welding Mode
TIG / MIG / MAG / Plasma Welding
Control Power Supply
220V / 380V 50Hz Customizable
Certification
CE Available
Warranty
12 Months
Core Advantages
Deformed-Free Cantilever Frame: Main beam uses integral welding with high-temperature stress relief annealing process, ensuring long-term operation without bending deformation and guaranteeing straightness for long-distance welding travel.
Pneumatic Key Type Uniform Clamping: Continuous pneumatic pressing fingers on both sides of the weld seam provide uniform compression force, preventing warping deformation during high-temperature welding. Clamping spacing is adjustable to accommodate different plate widths.
Copper Backing Gas Protection Mandrel: Built-in copper forming mold with argon back protection for weld root enables one-side welding with double-sided molding, producing smooth inner weld surfaces without oxidation and reducing post-weld grinding requirements.
Servo Travel Drive System: Servo motor with rack and pinion transmission and precision ground guide rail ensures stable, smooth torch movement with stepless adjustable welding speed (5-15mm/s), guaranteeing consistent weld beads for mass production.
Integrated Electrical Protection Design: All cables and air tubes arranged in drag chains to prevent wire breakage. Equipped with emergency stop button, overload protection, and manual/automatic dual mode switching with English operation panel for international workshop use.
Application Scope
Stainless steel water tank, solar water heater liner
Thin-wall pressure vessel, fire extinguisher cylinder
English control system, overseas voltage adaptation
Whole machine color customization
Frequently Asked Questions
Q1: Can this machine weld irregular conical cylinders?
A: Yes, we can adjust the mandrel and clamping fixture to adapt to conical and variable-diameter cylindrical workpieces.
Q2: Can you supply 250mm square clamps for fixture?
A: We have 250mm square clamps in stock, which can be equipped according to customer fixture requirements. Physical pictures can be provided for confirmation.
Q3: What welding power source is matched?
A: We can recommend brand TIG/MIG welding machines according to your workpiece material and thickness, or you can use your existing welding power source.
Q4: Is CE certificate available for EU customs clearance?
A: Complete CE certification files can be provided to meet European factory access and customs clearance requirements.
