Shrink-fit system is fast

The unit has the capacity for tools between 3 mm and 32 mm diameter in solid carbide and 6 mm to 32 mm diameter in high speed steel. Tools can be up to 450 mm long requiring a single heating coil. Presetting of the tool assembly can be carried out through the use of a measuring adaptor that is inserted with the toolholder. The system is able to maintain a concentricity of 0.003 mm between the tool and holder, enabling a balanced pre-set unit to be created that is ideal for high speed machining cycles and which prolongs tool life and avoids machine tool bearing damage. The machine uses an inductive heating coil with a high energy field to locally heat the toolholder in order to expand the inner diameter to accept the toolshank. Both heating and cooling are performed in the same position using the fully integrated flood cooling system to quench the tool assembly. As the complete operation is performed in a single cycle, any risk of injury associated with handling a heated tool unit is eliminated. As part of the cycle, once the specified temperature is reached, the toolshank is automatically and accurately inserted into the holder helped by a Bilz patented design of counterbore in the holder and a further patent-covered Ferrite Plate system. This system prevents heat reaching the cutting edges of the tool and any overheating of the tool body.