Product category:
Plant Inspection and Cleaning
News Release from: Guyson International | Subject: Guyson Multiblast RSB
Edited by the Processingtalk Editorial
Team on 16 February 2006
Automated blast removal of coating
'overspray'
A Guyson Multiblast RSB blast machine is used for cleaning off 'overspray' from drill holding fixtures which become encrusted with coating when the drills are PVD coated
One of the world's largest producers of high speed steel cutting tools recently installed a Guyson Multiblast RSB blast machine for cleaning off 'overspray' from its drill holding fixtures which become encrusted with coating when its drills are PVD coated This new blast cleaning process has the added potential advantage of removing from the workplace the less than environmentally friendly process of 'acid dipping', often employed for this coating removal
This article was originally published on Processingtalk on 16 Dec 2005 at 8.00am (UK)
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Trials on the components with various blast media were undertaken at Guyson's development workshop at Skipton and the automated Multiblast RSB (Rotating Spindle Blast) system was selected as the most appropriate machine.
This gave a perfect clean finish in the required time, with virtually no operator involvement apart from load and unloads, leaving the operator to perform other duties.
The coated fixtures are positioned manually on a specialised fixture; stacked up-to three-high for maximum throughout and located on a single rotating spindle in the centre of the rubber lined blast chamber.
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The fixtures rotate at a controlled, adjustable speed and are then grit blasted from 3 model 900 Guyson guns vertically traversing up and down the outside of the components.
These are set at a correct pre-positioned angle and distance to achieve overall coverage of the target surfaces whilst they rotate on the spindle under a constant stream of Guyson Brown Saftigrit Alumina.
This quickly and efficiently removes the coating from the fixtures and finally an automated traversing airwash, leaves them in a clean state ready for reuse.
This Multiblast system in common with most automated shot blast systems manufactured by Guyson is fitted with a PLC/HMI.
This gives full operational control over virtually all machine variables and enables through a simple menu system for a 'recipe' to be set-up with differing process requirements such as traverse, oscillation and airwash speed, start and finish gun positions etc.
These 'recipes' can be recalled and used to speedily reset-up the machine so as to enable a range of varied components to be processed in a repeatable fashion.
Completing the blast system is an efficient reverse jet pulse cleaning dust collector.
The dust collector being matched to the operational capacity anticipated and takes account of the volume of air fed into the system, the chamber dimensions, workflow, media type and break-down rate.
Prospective users of Guyson manual or automated blast systems are encouraged to submit sample components for free feasibility testing to the companies extensive development workshop at Skipton, UK. Request a free brochure from Guyson International ...
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