Product category:
Mixers, Blenders, Grinders and Mills
News Release from: Hosokawa Micron | Subject: Clean room granulator
Edited by the Processingtalk Editorial
Team on 02 November 2007
Granulators for plastic recycling in
clean-rooms
A significant range of plastic injection and blow moulded parts are manufactured under clean-room conditions, particularly for medical, pharmaceutical, optical and electronic applications
Grinding the plastic waste at the point of production is not only the most cost effective method of recycling this waste but also the most direct way Hosokawa Micron are now able to offer a granulation system to help manufacturers achieve in-situ recycling benefits without compromising the cleanroom environment
This article was originally published on Processingtalk on 13 Nov 2003 at 8.00am (UK)
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With a range of grinder options to suit throughput capacities, feed materials and end product fineness requirements, Hosokawa Micron work in partnership with customers to determine the most appropriate waste reduction and handling solution.
Because the acceptable particle emission rates for the manufacture of plastic parts under cleanroom conditions are particularly low, a unique system has been developed by Hosokawa, with the granulator installed inside a dust protection cabin which is kept under constant negative pressure.
This prevents particles escaping into the clean-room environment.
The same negative pressure is utilised in the discharge of the re-grind product at an FIBC filling station or alternative.
The complete mill unit can be wheeled out of the cleanroom for cleaning and maintenance.
The selection of the granulation system is dependent on the size of the cleanroom and air suction tolerances within the cleanroom.
In larger cleanrooms, where space allows, the granulator can be arranged directly beside the production machine however for smaller cleanrooms where this is not possible a distant granulator can be utilised.
By incorporating a pneumatic product transportation system from the point of production, waste plastic can be transferred from the blow moulder or plastic injection machine to the granulator.
This system can be adapted to handle the waste plastic from several smaller cleanrooms with waste transferred pneumatically to a centrally placed granulator.
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