Magnetic bandsaw guide innovation
Friday 4 Nov 2011
In a new innovation from EWD, magnets are being used to significantly improve the performance of high speed bandsaws in busy saw mills. The ‘Flying Bandsaw’ technology has been developed over the past couple of years and successfully tested at European mills on quad bandsaws. It was introduced to Australasian sawmiller’s as part of the FIEA SawTECH 2011 series run in Brisbane and Rotorua in June 2011. It consists of a pair of electro-magnets placed either side of a saw blade and in place of the usual pressure guides. Without the pressure guides, the blades can rotate at higher speeds and deliver greater accuracy – while also reducing heat and wear.
The magnetic guides do not touch the blade and have sensors that correct the tracking of the saw and make adjustments to ensure it is running straight. These sensors can control the gap to within 1mm and runs a standard deviation of 0.28 compared to 0.4 with normal pressure guides, a reduction of 0.5mm. For full details on the story and link to the study, check out the latest R&D Works Newsletter
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