A long workpiece that is to be turned over the entire length? Or a sensitive surface that cannot be clamped? There are face drivers from Röhm for this.
CoAE series for turning and milling, radially free of play, hydraulic pin bearing
for turning and milling, morse taper, centering mounting, flange, cylindrical mount, manually or power operated, to 350 kg component weight, to 8 kN axial power
Constant face drivers
for efficient turning and milling of workpieces over the entire length with concentricity of 0.01 mm
