Screen changers enhance the quality of the melt by trapping contaminants and solids particularly when using repro resins.  
Manual or hydraulically operated screen changers can be incorporated into the extrusion line to provide a cost-effective solution to maintain quality.
Alpha Marathon’s screen changers are machined from high grade tool steel which are thermally treated and rectified in their sliding parts.

Features & Benefits

• Manufactured from high grade tool steel
• Maximum surface area
• Two detachable breaker plates, pre-hardened and ground
• Pressure actuated sealing mechanism provides leak free contact surfaces
• Heater bands and thermocouple for temperature control
• Low maintenance design
• Minimal pressure drop
• Rated for pressures up to 10,000 psi
• Bolt on or 3-piece clamp connection to extruder and die flanges

Manual Screen Changer

Alpha Marathon's manual screen changers are lever operated. Screens can be changed by a single individual by hand with minimal disruption to the process.

Hydraulic Screen Changer

To maximize production yield, industry demands that the process continues with minimal disruption. Hydraulic screen changers are able to quickly substitute the filter media to limit the pressure drop across the screen changer