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Kreyenborg manufacture leak free screen changers as
follows:- |
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Discontinuous |
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Where it is convenient to change screens while the extruder is stopped for a few minutes. |
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These are available for capacities from 20 to 15,000 kg/hr. |
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The small ones can be mounted directly onto the extruder, whils’t the larger are usually supplied with a carriage which suits the centreline of your extruder. |
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Continuous |
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You can run your line while changing screens without pressure fluctuations or introducing air into the polymer melt. |
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No more lost strands, burst bubbles, out of gauge sheet or lost tolerance tubes and profiles. |
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Outputs from 5 to 60,000 kg/hr, with or without automatic venting control. |
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Automatic back flushing |
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Automatically extend your screen life by up to 100 times with this automated range. |
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When pressure reaches a predetermined value some polymer is diverted and flushes the dirty screen, before returning it to
production. |
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Eventually back flushing will not clear the screen sufficiently, so a signal is generated & the screen changed manually
before inducing Automatic venting and return of the screen to production. |
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In addition to these generic types are screen changers with
bigger screen areas or with 4 screens instead of two, screen
changers closely coupled to gear pumps, combination
diverter valves and screen changers, etc. |
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