Characteristics

The ECOROLL internal roller burnishing tool type GZ is used together with the SK peeling head for finish machining cylinder liners.
Skiving and burnishing are separate processes.
For use on deep-hole boring machines with BTA boring systems.
After machining the roller head automatically collapses; the tool can be retracted quickly without damaging the work piece.
For short cylinders (L/Ø ≤ 15) complete machining with SKOC and GZC tools on CNC-lathes and machining centers possible.
All plastically shapeable metals up to a hardness of 42 up to 45 HRC are capable being burnished.

Advantages

Diametrical tolerances of IT8 or IT9 and surface finish of Rz < 1 micron attainable.
Push or drag machining possible.
Short primary machining time.
Convenient adjustment of diameter.
Reliable method; great precision.
Simple replacement of wear parts.