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The RIVAL® adjustable calibrating sleeve was invented by the company’s founder, Knud Kristian Pedersen, in 1992. This is what he has to say:

“Throughout the 30 years or more that I had worked as a supplier to plastic pipe manufacturers, the industry had been looking for a calibrating sleeve that could be adjusted during operation to match the differences in calibration tolerances resulting from varying:

• material thicknesses
• raw materials
• extruder output
• production line speeds
• cooling
• vacuum levels

Several possible options had been devised in close collaboration with our customers, but we had never come close to finding a solution that was feasible in terms of design and production engineering. Until – and I remember it well – I was driving home after a meeting with a customer one day and the solution suddenly came to me, clear as day!

It virtually drew itself on the windscreen in front of me. I stopped the car, grabbed a piece of paper and a pencil and scribbled down the main principle of the device.

After a few hours at the drawing board, I realised that the solution was even better than I had dared hope for, since it would be possible to control and vary the diameter with a high degree of accuracy along the entire length of the calibrating sleeve, all while maintaining an accurate roundness. By the time we had produced the first ‘adjustable calibrating sleeve’ I was in no doubt whatsoever – it was indeed a revolutionary tool.”


Knud Kristian Pedersen
Founder of RIVAL

En kunde mener
Titel:
The adjustable calibrating sleeve is very precise and can give the pipe the correct diameter in the shortest possible time. This reduces excess weight and shortens the repayment period for the investment
Kilde:
Stephen Leggott, Vinidex (AUS)
Foto:
The adjustable calibrating sleeve is very precise and can give the pipe the correct diameter in the shortest possible time. This reduces excess weight and shortens the repayment period for the investment
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A/S Maskinfabrikken RIVAL

Phone: +45 86 57 71 77
E-mail: pta
@rival.dk

RIVAL • Svejstrupvej 23 • DK-8660 Skanderborg • Tel.: +45 86 57 71 77 • Fax: +45 86 57 71 33 • sales@rival.dk