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Since the foundation in 1963, Uhrhan & Schwill manufacture and assembly of welding systems for large diameter pipe mills worldwide.
Products categories:
• Pipe manufacturing processes
• Welding processes
• 1-arc tack welding machines
• Multiple-arc internal welding systems
• Multiple-arc external welding systems
Pipe manufacturing
Uhrhan & Schwill has specialised in two different welding techniques:
• Longitudinal welding
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In a longitudinal pipe mill, pipes with diameters ranging from 16'' (406 mm) to 64'' (1625 mm) and with wall thicknesses ranging from 6.4 mm to 38.0 mm are produced. Pipe lengths vary between 12 and 18 meters. In longitudinal pipe production, rolled plates are used as base metal. The base metal varies depending on wall thickness, pipe dimensions and intended application. The physical characteristics or surface conditions of the final product are defined by the base metal. |
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• Spiral pipe welding
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In a spiral pipe mill, pipes with diameters ranging from 20'' (508 mm) to 100'' (2540 mm) and with wall thicknesses ranging from 6.4 mm to 30.0 mm are produced. Pipe lengths vary between 12 and 24 meters. In spiral pipe production, hot rolled wide strip or plates are used as base metal. The base metal varies depending on wall thickness, pipe dimensions and intended application. The physical characteristics or surface conditions of the final product are defined by the base metal. |
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