TPT November 2008

C utting, S awing & P rofiling T echnology

Plastic pipe and profile cutting

In order to avoid burr and chips in a saw cutting mode, it is necessary to use a sharp-cut thin circle blade. A burr-free cutting machine with this blade rotates around the pipe at higher speeds, avoiding burr and chips. Therefore, the circle blade in the burr-free cutting method runs at higher speeds than in planetary cutting. The difference between burr-free cutting and planetary cutting mainly involves the number of circumferential journeys around the pipe. There is only one rotation of the circumference during planetary cutting, while there are several circumferential rotations during burr-free cutting. Therefore, burr-free cutting is not suitable for pipe diameter over Ø 250mm. If the circle blade is changed into a rectangle sharp-cut blade – enabling directional cutting – then it can be applied for plastic profile burr-free cutting. Foshan Technwell Plastic Machinery Co Ltd – China Fax : +86 757 83877735 Email : overseas@technwell.com Website : www.technwell.com

Foshan Technwell Plastic Machinery Co Ltd, China, is the manufacturer of advanced cutting devices for plastic pipe and profiles. A number of methods are employed for cutting plastic pipe and profile, including

directional round plate saw cutting, planetary saw cutting and burr-free cutting. The cutting method is determined by the diameter of the saw plate. In terms of directional round plate saw cutting, the diameter of the saw needs to be larger in relation to the pipe diameter and profile width, while the cut surface is lower quality and the noise louder. Therefore, this method is limited and not suitable for pipe diameters over Ø 250mm. If the pipe diameter is over Ø 250mm, it is necessary to employ the planetary saw mode of cutting. Using a planetary cutting saw, the saw is round and operates independently at high speeds.

 Foshan Technwell offer technology for the cutting of plastic pipe and profile

It works by rotating around the pipe in one circle, in order to achieve pipe cutting with a high quality surface finish, especially suited to pipe that requires a chamfered end. It is possible to use this method with larger diameter pipe, while noise levels are decreased.

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N ovember 2008

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