Wednesday, 19 January 2011
Sale on brand new Kjellberg and Thermadyne consumables
Thursday, 13 January 2011

SPT Plasmateknik AB has received several domestic inquiries lately for cutting of pipes from the inside. For this we have developed a special solution.
The problem: At construction sites the ground is stabilized by means of pipes that are hammered into the ground. These need to be cut off. Today the usual method is to dig a hole around the pipe and a worker goes down to cut the pipe off with an angle grinder. This work is loud, uncomfortable and the worker can get injured from vibrations etc.
For this SPT has developed a simple and easy to use application. A 90° plasma torch is modified with a torch handle long enough to be inserted into the pipe as far as it has to go. A triangular jig at the head end of the torch keeps the distance constant between nozzle and the inside wall.
This solution is primarily designed for pipes with inner diameter 65-105 mm and a wall thickness of up to 10 mm.
With this solution the pipe is cut off quicky and safely. Furthermore, this solution can be used in similar applications when there is a desire to avoid dross and cutting dirt inside the pipe.
The cutting is fast and cheap. With a pipe diameter of 100 mm and a wall thickness of 6 mm the pipe is cut off in under half a minute.
