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 Mod. 300M 4AC  

Mod. 300M 4AC

4 NC controlled axes (Y – X – A - Z)

Automatic longitudinal and horizontal pre-programmed and reversible slot machining and automatic rotation of turntable  for any required slot depth and diameter.  Tool lift obtained by alternating table movements.  Once the pre-programmed slot depth has been reached, in automatic the machine performs a number of finishing strokes and the ram stops in its top position and  the workpiece table  in automatic returns to machining start cycle position.   Electronic turntable with central through hole to floor with possibility of programming 1500 symmetrical  and 999 asymmetrical divisions. Possibility of machining specific trapezoidal, circular and linear slots.

The incorporated NC technology provides a user friendly  operator / machine interface, the operator can call up data on the 10.4 " colour monitor utilising the keypad. The operator can store different machining programmes with zero workpiece position.  The NC system can store up to 100 programmes.

This model also incorporates the traditional ram drive assembly consisting of a NC controlled piston transforming the ram axis into a NC machining axis for machining front conical slots and for running programmes in sequence in automatic with different machining speeds.

The software offers the following standard applications:
  • slot repeat:  this function is for repeating slot machining without having to proceed with machine setup.
  • incremental tool lift:  with this function enabled the tool is completely raised out of the slot when the ram returns  and returns to zero workpiece position.
  • slot bottom finishing:  in the event the slot is widened the operator has the possibility of milling the bottom of the slot to finish.
  • slot side finishing:  this function is for widening the slot by milling and finishing the sides.
  • adjustable tool feed per sector:  this function is for running machining programmes with adjustable machining speed and tool feed across 3 levels.
  • brushless ram drive motor
  • machine software can be customised to run programmes for machining conical slots and keys without tilting the head to obtain minimum inclinations and widths.

If required and upon request, it is possible to add and incorporate  specific software functions and applications:
  • decreasing tool feed:  ideal for machining conical slots by utilising a larger initial tool feed and to end machining with a smaller tool feed value. This function is NC controlled.
  • air blow:  ideal for machining slots in blind holes. At a defined number of ram strokes a solenoid valve is activated and air is blown onto the workpiece to remove swarf during machining.  The operator also has the possibility of setting the operating duration (time).
  • chamfering:  once having machined the slot it is possible with this function to chamfer slot edges to 45° in automatic.
  • tangential slots:  this function allows the operator to machine in automatic two or more UNI 7515-76 tangential slots of any width.
20° tilting head (in both directions).  Inverter controlled  variable stepless slotting speed with potentiometer incorporated in the control panel.   The machine incorporates an electro-pump for the tool cooling system and automatic pump for ram and trolley lubrication.   Maintenance tools and machine instruction manual are provided. 
Machine designed and manufactured to EC standards and directives.


Mod. 300M 4AC
Adjustable tool travel from 0 to ( NC controlled axis Z)
Distance between column and tool holder
Distance between turntable and head
Ram vertical travel
6Measurements turntable (NC controlled axis A)Ø mm450
8Longitudinal travel (NC controlled axis Y)
9Horizontal travel (NC controlled axis X)mm
10Through holeØ mm135
N. of variable stepless strokes n.strokes/min 0 a 80
Ram drive motor (brushless)
Kw 8
Overall machine dimensions
L = 1700
P = 1750
H = 3050



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