Airless blasting: cost effective mould cleaning

Guyson believes the answer to removing solidified and burnt mould lubricants cost-effectively lies in an airless range of high speed, high velocity, 'soft' impact, mould and die cleaning systems

Specialist surface cleaning and finishing machinery manufacturers, Guyson International are aware the costs of removing solidified and burnt mould lubricants and similar encrusted deposits from the sensitive surfaces of moulds and extrusion dies without damage or dimensional change are regularly under review by most mould workshop repair and maintenance managers.

Guyson believe the answer lies in a tried and tested, cost effective, airless range of high speed, high velocity, 'soft' impact, mould and die cleaning systems.

Further information and individual applications can be discussed at the forthcoming 'Metals 2001' exhibition at the NEC in October (stand number F37) where Guyson will be exhibiting.

Each system, is based upon the use of a fully automatic, rotary table, airless feed machine from their 'Turboblast' range in combination with a specially selected dry blast cleaning medium from their 'Flexgrain' range of 'soft-impact' metallic bead.

The major advantage of a Guyson 'Turboblast' system is its low operating costs.

Manpower savings alone have been reported to be a major contributory factor in reducing the payback period of the capital cost of the machine.

Process times are pre-selected and controlled through an electrical console.

No compressed air is required.

Since all machine operations are totally enclosed, losses of cleaning medium are negligible.

A typical Guyson 'Turboblast(r)' T10 model is equipped with a 1 metre rotating table designed to process batches of components weighing up to 900kg.

As the table revolves a high speed wheeled turbine continuously propels a high velocity flow of 'soft-impact' metallic bead directly on to the rotating components.

Complete saturation coverage of the total surface area is maintained during a timed blast cycle of only two to three minutes.

All component surfaces are cleaned without damage or measurable dimensional change to any of the critical areas.

Some workshops take advantage of a much larger 1.4 metre table model whilst others with smaller outputs prefer the smaller 500mm model or alternatively use a compressed air powered, manually operated beadblasting cabinet from the Guyson 'Euroblast(r)' range.

These have proved to be particularly versatile in the use of alternative low impact blast cleaning media and have created a wider range of mould and die cleaning opportunities where several new types of soft, non-abrasive media have proved suitable for cleaning the most sensitive surfaces which include chrome plated, aluminium and steel tooling.

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