Hydraulic Plastic Extrusion Screen Changer for Extruder Lines
PRODUCT DESCRIPTION
A continuous screen changer is a machine that filters out impurities in the polymer extrusion process—without interrupting the process when a dirty screen needs to be changed. It's used in melt filtration processes where debris can clog up screens in a very short time and process disruptions are costly.
| Temperature °F [°C] | Up to 650 [343] |
| Max oper. pressure PSI [bar] | max. 7,500 [517] |
| Control zones (housing) | One (1) or Two (2) |
| Heating | Electric/Fluid |
Benefits of this kind of double piston type continuous screen changer with large capacity for plastic extruder
Fit for all kinds of polymers Leak-free mold of operation Flow channel geometry structure without any dead spots Several sets of screen changer can be controlled by one set of hydraulic unit Adapters are talior designed for customers Variety ways of installation to full use of the limited space Simply controll by a easy operated control handle Reasonable price and proved technology Main application fields 
Double Piston Continuous Screen Changer
1. Come with bulit-in sealing devive to ensure sound tightness and allow for mass production of any polymers. Capable of being coupled with extruders of various specifications.
2. Screen -changing time less than 2 seconds. The filtering area may vary between? 30mm--?
250mm.
3. Come with grinding--resistant, pressure--resistant and high precision filter to ensure maximized filtering area and optimized filtering results.
Its performance will not be compromised when the pressure is kept between 25--30Mpa and temperature around 300° C.
4. Nearly all the polymers are fit for screen changer, such as PC, PMMA, PET, PS, PP, PU, PE, EVA, ABS etc.
Main application fields
Main features of this plate type hydraulic screen changer 1)Quick/fast 1.1,To move from the filtering screen in the working position to the clean screen takes only a minimum time, less than 2 seconds 1.2,Extraction and replacement of the filtering screens take place very quickly and maintenance can be carried out in a short time 1.3,The speed of the change from one screen to the other means that the action of the extruder is not interrupted 2)Flexible 2.1,This kind of plate type screen changer can be installed vertically, horizontally ,or slantly, and the hydraulic cyclinder can be on the right side or left side , or vertical. 2.2,Serveral sets of screen changer can be drived by one set of hydraulic unit. 3) Safe 4)The screen changer is provided with several devices which guarantee its safe use. 5)The safety blocking system of the doors and the hydraulic unit protects from the movements of the plates and from accidental opening during maintenance
