Remanufacturing

Rebuilding screws and relining barrels are more than cost saving services. They often provide better wear resistance than when the components were new.

Screw flights are repaired and rebuilt to SPI standards. A variety of hard surfacing materials are available. Broken drive end can be replaced and new hot ends can be installed should the tip threads be damaged. The screw’s compression ratio can be modified for specific processing applications. Mixing sections can be added or modified. Concor rebuilds CPM 9V through hardened tool steel screws.

Barrel relining eliminates the need for a new replacement barrel. Most barrels can be relined full length or partially relined. Several liner grades are available. Barrels can be modified to accept a bolt on end cap should the thread on design become a problem.

End caps can be "rebuilt" by inserting a through-hardened tool steel insert that provides a wear resistant surface on the ID angle and through hole.

A tip assembly can have its sealing surfaces reground if the valve is through hardened and the check ring OD is still to size. In addition, the valve is cleaned and polished. There is a minimal cost associated with valve resurfacing.

Concor rebuilds extruder gearboxes and relines extruder feed throats.

Additional services:

• Tie bar repair – new ends, re-chroming.
• Piston and cylinder repair.
• Drive quill repair.
• Drive bushings and retainers.
• Auger repair.
• Plunger repair.
• Carbide coating and surface treatments.
• Hard surfacing.
• Stuffer repair.