Burnishing dies

• These burnishing dies permit to smooth the diameters.

• They work without radial efforts and no pressure is exerted on the workpiece, even for small diameters.

• The three rollers will give a better surface quality, without improving the turning geometry, however.

• The rollers will just follow that geometry. It is therefore important to have a good tuning job done, as far as concentricity and cylindrical shape are concerned.

• The peripherical speed of the workpiece must be about 20 meters/minute. The speed is smaller when the material to be smoothed is very hard.

• The indicative value for the feed is 0.2 to 0.5 mm/revolution.

Die holders, adjustable

• The die holders, type R, permit to mount our adjustable rolling dies on all types of automatics.

• The assembly on the machine will be effected either with a clamping collet or directly into the collet housing with the help of a clamping cone.