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Tech.Comp+PC /PMMA	PA-Fibre+PE Stretch	PE-Drums+EPS	Retrospect K07 +Screenchanger

General News:   

   The basics
For almost 35 years  PLASTMACHINES International GmbH has successfully  supplied recycling machinery for plastics materials throughout the world.
More than 500 lines in more than 30 countries are operated by satisfied customers in demonstration of our reputation.
PLASTMACHINES have been the first to implement many technical innovations, well before competing companies have considered those developments. 
One only has to consider the computer based control system, or  the specification of the reprocessing equipment to see why PLASTMACHINES regards themselves as innovators in the domain of recycling technology.
 

  The concept
 This future-oriented program is a revolutionary development in the field of recycling plastic materials. The flexible modular system achieves cost-effictive recycling of regrind and also of thin-walled waste material in its original  state, such as plastic sheet, fibre, foamed material, all  in a single plant.
The waste material  can be fed manually or automatically into the main cutting chamber. Control of feeding is by sensing the load  on the main cutting drive motor. When a pre-set load is reached, the in-feed conveyor pauses until the cutting drive motor load is again within the normal operating range.

The cutting unit consists of an open easily accessible drum with rotating cutting elements that cut, densify and impel the material into the intermediate screw. A range of cutting rotors is available for different applications. The intermediate screw acts as a  stuffing device for the extruder, and is 
selected for the material  being reprocessed. For satisfactory processing of thin- and thick-walled film  the intermediate screw can be supplied with a variable speed drive motor.
The densified material is passed through a standard extruder for further gentle plastification. The continuous screenchanger  filters the polymer flow,  and at the die face the polymer is cut into pellets.
Since waste materials are liable to contain a certain amount of contaminants,  the filtration system is of critical  importance.  Plastmachines offer a  screenchanger for continuous operation which is equipped with two flow channels. This allows continuation of extrusion  whilst one of the filters is exchanged. 
The filters are  cylindrical in form, which gives a very large screen area, consequently a proportionately increased operating time,  reduced frequency of screen changes and reduced labour costs. A further benefit is that the screen mesh   is  in a rectangular form, so it is easily prepared and avoids the off-cuts necessary for circular screens.

A higher screen area means lower pressure can be maintained, therefore enabling higher output and higher purity of pellets. Typically the screen area is seven times greater than for conventional sliding screens. Since moreover there is no  moving  and rubbing face, the wear on the Plastmachines screenchanger is absolutely minimal. For a large number of applications, the continuously operating screenchanger is   much  more suitable  than the sliding plate type (manual or hydraulic), and gives optimum output and profitablilty.

The ZT/E offers either air or water as the means of cooling the pellets that are produced. When water cooling is employed, the pellets are separated from the water by means of a vibrating table, which has two vibratory motor drives and is inclined so as to transport the pellets into a centrifugal blower for final drying.  The blower conveys the pellets into a discharge pipe, which the customer can connect to a silo or to a bagging unit. 
 

  The result
The exact adjustable conditions guarantee the production of a competitive and high quality pellet. The complete unit consists of components which have been approved troublefree for many years.
Regrind and additives can be fed straight into  the extrusion hopper and thus be directly compounded with the film waste to a quality like virgin material.
The optimum processing of waste material is achieved with  minimum investment and production costs using these highly competitive COMBI-UNIT.