Solution:
MicroCentric developed a self contained air chuck with a partial through hole. The chuck is mounted to an adapter plate which incorporates a manifold for the air tube assembly, which directs air into the chuck. The chuck includes a threaded centre housing onto which part stops are mounted. Hardened and ground top jaws clamp the workpieces on their OD to maintain the required concentricity for both grinding operations.
Achieved accuracy: 0,0015 mm