testa_M5A70 pages
M5A/7
Continuous bi-rotary head
The main feature of this continuous bi-rotary head is its reduced size making it particularly suitable for
mounting on small or medium-sized machines for high-speed milling.
Continuous control of the axes in RTCP makes the M5A head ideal for 5 axis machining, including undercut
machining.
To obtain the maximum possible accuracy, the B and C axes are both driven by brushless motors and the
transducers are mounted directly on the axes. In addition, the axis kinematic chains have a crown gear
- worm screw system with a variable pitch for compensation of backlash.
The M5A/7 head is equipped with a spindle that rotates up to 32000 1/min and develops power of 7.5 kW.
The head uses ceramic ball bearings and the housing incorporating the motor-cartridge is maintained at a
controlled temperature by means of the continuous re-circulation of coolant.
The minimum tool lubrication device is incorporated in the head.