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DIESEL INJECTION CLEANING AND PROTECTION
Cleaning of critical threads and shafts of several sizes of diesel injector components, all badly contaminated with grinding
fluid and dust, has now been improved with the introduction of a machine manufactured by Guyson International. High volumes
of components are now thoroughly cleaned and treated with an oil based protective coating using a new four-stage conveyorised,
washing, rinsing, drying and coating system.
The Guyson Marr-Line 300/4 is built to be compatible with both in-line and cellular manufacturing systems and has a totally
enclosed conveyor path of almost five metres in length. Shafts measuring up to 150mm long and 17mm in diameter, are placed
lengthways, one at a time, across the width of the conveyor, onto nylon supports, either manually or by robot.
As they pass through the separate wash and rinse chambers the shafts are saturated by a powerful, high intensity spray from
a series of overhead and side positioned V-spray jets. Different concentrations of heated water based solutions, each pumped
through an inline 200 micron washable filter element, are used for washing and rinsing.
Optimum wash-fluid life is catered for with a weir-type oil separator, processing all the used wash tank solutions and weirs
off tramp oil for subsequent disposal. Superfine 40-micron in-line filter between the pump and spray jets helps assure a cleaner
solution for spraying. To minimise carryover of excess solution, blown air at ambient temperature is delivered throughout the
process by overhead airknives strategically positioned between each chamber.
Before entering the protective coating chamber all components pass through a drying tunnel where the air temperature is boosted
to 80°C. Inside the chamber an oil based protective coating is continuously gravity fed at ambient temperature on to the clean
and dry surface of each shaft, through a series of small bore adjustable pipes into nozzles positioned around the component path.
This gentle delivery saturates and flow coats the entire surface area of each component and minimises the risk of vapours being
caused by atomisation. As the shafts exit the system, air knives deliver a curtain of air to flash dry the coated surface to
maximises its corrosion inhibiting performance.
Free component trials
Whether your interest is in blast, wash or ultrasonic cleaning equipment, we offer FREE component trials, with no obligation to buy. To contact Guyson International, call on +44 (0)1756 799911, fax +44 (0)1756 790213, or email info@guyson.co.uk.
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