Spot Welding Machine Spiro Spotwelder

Spot Welding Machine Spiro Spotwelder


SPIRO Spotwelder is a stationary/semi-mobile spot welding machine designed for welding fittings where standard stitch-welding (continuous seam welding) cannot be applied. The machine enables spot joints on cylindrical and flat parts with diameters ranging from 75 mm to 1000 mm. It features an adjustable throat depth and electrode stroke, making it ideal for serial production with a capacity of up to 200 segments per hour (for a 315 mm / 90° elbow).

Features and Advantages

Feature Advantage
Powerful Welding Unit Maximum power of 55 kW provides sufficient energy for reliable spot joints on thin-walled fittings.
Wide Diameter Range Handles workpieces from 75 mm to 1000 mm—suitable for small fittings as well as large ducts and housing fragments.
Adjustable Geometry Electrode stroke of 10–60 mm and throat depth of 380–700 mm provide access to hard-to-reach zones and adapt to various product shapes.
Efficient Pneumatics Low compressed air consumption at a standard 6 bar connection ensures stable pneumatic operation.
High Throughput Practical productivity of approximately 200 segments/hour (for Ø 315 mm / 90°) is an excellent benchmark for line capacity planning.

Standard Equipment

  • Welding Transformer/Unit: Power capacity up to 55 kW.

  • Electrode Movement System: Mechanical/pneumatic system with a 10–60 mm stroke.

  • Adjustable Arm/Frame: Throat depth range of 380–700 mm.

  • Initiation: Foot pedal or button start (depending on order configuration).

  • Basic Electrodes: Standard set for typical operations and an operating manual.

Options

  • Deburring / Cleaning Device: For cleaning or removing burrs after the welding process.

  • Specialized Electrodes: Various materials and geometries for specific flanges or material thicknesses.

  • Automated Positioners: Clamps for serial feeding and better centering of fittings to increase productivity.

  • Spiro® Connect Integration: Computer connection for diagnostics, service, and Industry 4.0 functions.

Technical Specifications

Parameter Value
Max. Welding Power 55 kW
Workpiece Diameter Range 75 – 1000 mm
Pneumatic Pressure 6 bar (≈ 0.6 MPa)
Electrode Stroke 10 – 60 mm
Throat Depth (Arm Reach) 380 – 700 mm
Maximum Productivity 200 segments/hour (for Ø 315 mm / 90°)
Compatible Materials Galvanized steel, Stainless steel, other thin-sheet metals
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