Corner Seam Welding Machines CORNERWELD 300/500

Schnelldorfer CORNERWELD seam welding machines have been designed to weld sheet metal plates with a 90° joint.

  • Perfect discolouration free corners
  • Modular tooling
  • Minimal distortion of welded parts
  • Wide range of control options
  • Weld program memory storage available
  • Clamping system with adjustable jaws


CORNERWELD corner welding machines have been developed to weld sheet metal plates in 90° joints. Precise clamping technology with cooling system and inert gas supply combined with a convenient machine control to control welding cycles ensure high-quality corner welding seams.

The highly flexible clamping system is designed to clamp and weld diverse part geometries on one unit.

The maximum welding length is 300 mm or 500 mm depending on the machine model. The maximum inward return flange is 42 mm. Moreover, workpieces with max. 80 mm outward return flanges can be clamped.

Common applications for corner seam welding include control cabinets made of steel and stainless steel, catering kitchens as well as sanitary and laboratory furniture. CORNERWELD corner seam welding machines are also suitable for welding of larger rectangular tanks, such as ultrasonic cleaning tanks.


Technical Data




Welding length up to

300 mm

500 mm

Component dimensions min.

more information in our data-sheet

Component dimensions max.

more information in our data-sheet

Clamping height above ground

1220 mm

Material Type

Stainless Steel, Mild Steel, Galvanised Steel, Aluminium

Material Thickness

0,4 mm – 3,0 mm

Inward return flange max.

42 mm

Outward return flange max.

80 mm

Internal clamping Tool

Hard Wearing Copper (CuCrZr), Stainless steel (Option)

Clamping Finger

Hard Wearing Copper (CuCrZr), Stainless steel (Option)

Clamping System

Pneumatic, Pre-clamp feature

Arc Length

Constant (over whole welding length)

Welding process


Welding direction

free selectable


Torch Gas, Backing Gas, Trailing Gas

Cooling Circuit

Mandrel (Internal clamping tool), Torch


Siemens S7-ET 200S

Operator Panel

Siemens Comfort-Panel 7,0ʺ TFT colour display, touch operation


Siemens Simodrive Posmo

Welding Interface

Roboterinterface, Profibus


CE-Mark or UL-Standard (Option)

Electric Supply/ Input

400/230 Volt / 3 / N / PE; 50/60 Hz; TN-grid

Air Supply

6 bar, dry, filtered

Ambient Temperature

+ 10°C to + 35°C


RAL 4006 / 7015 or to customer requirements

Dimensions (W x L x H)

800 mm x 1200 mm x 1800 mm

800 mm x 1400 mm x 1800 mm


860 kg

980 kg


Corner Welding of a Stainless Steel Cover on a Corner Seam Welder




We welcome you to visit our test centre to witness the continuous improvement of our welding machines. After purchase our competent and highly trained service personnel will be pleased to support you.

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If you have any questions about our welding machines, or any of our services, please do not hesitate to contact our sales representatives

Phone: +49 (0) 7950 9889-0

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