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A20

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The Citizen A20, an evolving 7-Axis CNC sliding head machine, furthers the quest for cost and performance, featuring the ability to switch between guide bush and non-guide bush types.

  • New capability to switch between guide bush and none-guide bush operating modes.
  • A20 is capable of machining bar stock up to ø25mm by installing the optional 25mm size chuck device.

Acclaimed for its excellent cost to performance ratio, the A20 has evolved as a 7-axis machine for ø20 mm applications with the advantage that it can be used with or without a guide bush. It can be used as a regular guide bush automatic lathe when machining long slender work pieces, and without a guide bush for shorter parts with minimal bar end remnants.

The guide bush can be quickly and simply mounted and removed.
The performance of the machine has been improved too. The high speed 10,000 rpm spindle enables optimised machining operations on smaller diameter bar material. The machining length per chucking is now extended to 200 mm enabling the number of re-chuckings and therefore cycle times to be reduced when machining long work pieces. As an option, bar material of up to φ25 mm can also be machined extending the range of work-pieces.

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Machine Specification

Item A20VII
Maximum machining diameter ø20mm / ø25mm option
Maximum machining length Guide-bush 200mm
Guide-bush-less 2.5D(Max. 55mm)
Maximum drilling diameter for main spindle ø10mm
Maximum tapping diameter for main spindle (tap,die) M8
Spindle speed Max.10,000min-1
Maximum drilling diameter for rotary tool ø7mm
Maximum tapping diameter for rotary tool M6
Spindle speed of the gang rotary tool Max.6,000min-1(rating4,800min-1)
Maximum chuck diameter of back spindle ø20mm
Maximum protrusion length of the back spindle workpiece 50mm
Maximum drilling diameter in back machining process ø8mm
Maximum tapping diameter in back machining process M10
Back spindle speed Max.8,000min-1
Number of tools to be mounted 21
Tool size Turning tool □12mm (□13mm, □16mm)
Rapid feed rate X1 axis 18m/min
X2 axis 32m/min
Y axis 32m/min
Z1 axis 32m/min
Z2 axis 32m/min
Motors For spindle drive 2.2/3.7kW
For tool spindle drive 0.75kW
For back spindle drive 1.1/1.5kW
For cutting coolant oil 0.25kW
Input power capacity 6kVA
Center height 1,050mm
Weight 2,550kg

Work Area

Hover on one of the items below to see more information about the work area.


work-area-a20

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Product Matrix

Here you can access information on any products you are looking for by bar or chuck size, by machine type, or by other particular specifications.

Product Matrix

Our Range

Our machines cover 1mm to 64mm and above. Fast to set, quick to changeover and easy to use our technology represents a sound investment. We invite you to take a look at our range.

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