TPT November 2007

C utting, S awing & P rofiling T echnology

Cutting and bevelling prep for orbital tube welding

High quality range of saw blades

Protem is the manufacturer of a range of advanced machinery for tube cutting and bevelling, and other operations such as drilling, facing, threading, boring, core drilling and stud removal. The company’s equipment is often used for high-quality end preparation before orbital welding of tubes. There are a range of different pipe end preparation methods for metal tube and pipe. These methods vary from the simplest, eg the flawed hacksaw and file method, through grinding and flame/plasma cutting, to the high-end of CNC production machinery, which can turn out hundreds of finished tubes or pipes per hour. Dedicated end preparation machinery can prove invaluable in certain areas. The first is at the end of a tube or pipe production line. A customised end preparation system, matched to the speed of a line, can give the manufacturer a better finish than a saw cut end. On occasion, end preparations have to be created in an environment that precludes normal methods. This may be underwater

or in an irradiated area, or possibly in a situation where a human operator cannot be employed due to inaccessibility or danger to life. For such difficult applications remote-control machines are needed. In situations where it is not permitted to touch the inside of the tube, for example with an electrochemically polished tube, portable machines employ special clamping collets to grip the workpiece. Others might use a system of jaws similar to a chuck. For smaller sizes the collet system is the optimal solution. fi The CTA cutting and bevelling machine range from Protem

SW Wil, Germany, is a market leader in the technology of sawing and cutting techniques. The company has one of the most powerful and largest ranges of circular saw blades to cut almost any object or surface. The company’s range includes HSS blades from Ø 40-700mm, HSS- segmental blades from Ø 400- 1,800mm, TCT-tipped blades from Ø 250-2,000mm, and friction blades from Ø 300-2,000mm. Highlights of the SW Wil range are the SwissCut HR friction saw blades, TCT blades and the new SwissCut T, the world’s biggest solid HSS (700mm).

SW Wil – Germany Fax : +41 71 911 49 32 Email : swwil@sw-wil.com Website : www.sw-wil.com

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N ovember /D ecember 2007