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The ADRI Speed Increasers - MAV, are designed for runing in vertical CNC Machining Centers and CNC Milling Machines. They can be used with ATC (Automatic Tool Changer) or manually operated. The ADRI-MAV Speed Increasers are ideal for toolshops or production runs.


5 models with 30, 40 or 50 shanks.
Integral shank/head.
Speeds upto 22.000 rpm
Heat treated precision ground gears
Tooling upto 20mm
Speed ratio 1:6
ER collets, others on request

Stop Block
The ADRI Speed Increasers-MAV require a Stop Blockfor their correct functioning. This Stop Block is fixed to the Machine Spindle, positioning the Speed Increaser and offering anti-rotational resistance.
The Block Stop may be supplied on request by Adriatica or manufactured "in loco" by the client in accordance with the Machine spindle dimensions.


Code MAV-0 MAV-1 MAV-2 MAV-3 MAV-4

  Shank 30 30 40 40/50 50
  ØD 80 80 105 125 150
  ØD1 44 44 70 85 100
  ØD2 30 30 35 40 50
  L 110 110 135 130 145
  L1 34 34 48 50 65
  L2 25 25 30 32 36
  Collet ER-16 ER-16 ER-20 ER-25 ER-32
  Max.Tool
  diameter
10 10 13 16 20
  Max Speed
  RPM
18000 18000 15000 12000 10000
  Ratio 1 : 5 1 : 5 1 : 6 1 : 6 1 : 6
  Weight w/
  shank (kg)
3,3 3,7 5,8 8,0/10,0 12,0
All dimensions are in mm
* Measurements may alter according to machine.