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Cooling The Chuck |
In order to minimize the cooling
time, the aluminum bodies are used at the positive contact with the hot clamping
area and to transfer the energy rapidly to the surface of the ribbed cooling
area. The cooling rib causes the energy-producing surface, onto which fin
supported
housings
are directed, to expand tenfold. Theses cooling adapters can also be
supplied with seating in a material, which prevents damage to the cutting edges
on PCD tools.
The T2000 is supplied with one and
T3200 is supplied with four fan cooling points as standard. when the
cooling adapter is positioned on the coolant points, the fan unites are
activated by a light barrier and automatically switched off again after 2
minutes. After 60 seconds the chuck reaches a temperature at which the
operator can hold it again.
When the cooling adapter is moved onto the appropriate coolant points, the next tool can then be fitted during the cooling process. by using this procedure, it is quite easy to fit three or four tools per minute. In fact this number of tool changes is also essential to guarantee practical handling in line with workshop practice.
The length setting is carried out before the thermal expansion process using a measuring adapter (B). This is inserted into the chuck (A) with the tool (C); by turning the adapter, the tool length is defined with an adjustment screw, allowing for the dimension L. finally the adapter is removed and the tool fitted by thermal expansion.