Features of UNITEK Crossheads for Extrusion Machines:
Product lines include:
- Fixed centre crossheads, for single layer extrusion; ensures concentric products right after start-up.
- Co-extrusion crossheads for surface colouring and stripe marking; colours only the skin and shortens the time involved in colour change.
- Co-extrusion heads for extrusion of up to 4 layers of different polymers.
- Automatic bypass systems which involve a hydraulically or pneumatically operated discharge valve for diverting material flow; assists in start-up, colour change, production change or broken wire interruption.