Questions and Answers
• Is the CoolSpeed mini damaged during a crash?
No. Normally, the CoolSpeed mini is not affected by a crush. The tool and bearings will be damaged, so replacing to a new tool
with new bearings and turbine will completely solve the problem.
• How do I know the CoolSpeed mini rotation speeds?
The CoolSpeed mini rotation speed is a function of the through-coolant (or oil) pressure. To measure the through-coolant (or
oil) pressure place the WTO Pressure Device into the sealed tool holder and place into the main spindle. Turn on the machine
through-coolant (or oil) pressure and read the gage. Now look at the CoolSpeed mini speed table and learn the rotation speed.
• How do I know the CoolSpeed mini Air rotation speeds?
The CoolSpeed mini Air operates under 5 – 7 [bar] of air pressure (mist), providing 55,000 rpm.
• Is the rotating speed calculation precise?
The CoolSpeed mini rotation speed is a function of a few parameters, as pressure, viscosity and bearing’s friction. The
calculation delivers an estimation of the no load speed. During cutting procedure, the rotating speed will be reduced according
to the cutting load. Therefore, it essential to promote optimization (few trials) in order to define the optimal cut depths and
feed rates for the specific application.
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