Crown Machine UWP, Inc.
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Crown - Single Bolt Hydraulic Screen Changer (Polymer Filtration)
Single bolt hydraulic screen changers use two working filter screen and are used in compounding, masterbatch, recycling, sheet extrusion, profile extrusion, pipe production, pipe coating, and biaxial orientation.
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screen changer
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water cooling
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polymer flow
security system
security seal
screen filtration
- Hydraulic cyclinder moves the bolt (piston) out of the housing and polymer melt begins to flow through the second screen
- After replacing the filter screen, bolt (piston) can be returned to production position when the other screen needs cleaning
- Since polymer melt flows through second screen while other screen is changed, production does not need to stop
- Works well under high temperatures of 300°C
- Works well at high pressures of 25MPa - 30MPa
- Uses two working filter screens, which provide greater production efficiency and maintenance
- Filter screens are design has an elliptical bore, which doubles filter quantity while ensuring high output
- Uses a a precise electrical ruler controller system
- Hydraulic system provides secure operation
- Dual sealing system of a bronze ring and water cooling at the top and bottom of screen changer body
- Screen changing is less than 2 seconds
- Unique sealing system ensures operation without leaks
- Short residence time for materials
