A20-VII, Citizen Machinery CNC Lathes

A20-VII - Citizen Machinery

A20-VII LFV Technology
Sliding Head LFV Technology

The Citizen A20, an evolving 5-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.

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ItemA20VIII
Maximum machining diameterø20mm / ø25mm option
Maximum machining lengthGuide-bush200mm
Guide-bush-less2.5D(Max. 55mm)
Maximum drilling diameter for main spindleø10mm
Maximum tapping diameter for main spindle (tap,die)M8
Spindle speedMax.10,000min-1
Maximum drilling diameter for rotary toolø7mm
Maximum tapping diameter for rotary toolM6
Spindle speed of the gang rotary toolMax.6,000min-1(rating4,800min-1)
Maximum chuck diameter of back spindleø20mm
Maximum protrusion length of the back spindle workpiece50mm
Maximum drilling diameter in back machining processø8mm
Maximum tapping diameter in back machining processM10
Back spindle speedMax.8,000min-1
Number of tools to be mounted21
Tool sizeTurning tool□12mm (□13mm, □16mm)
Rapid feed rateX1 axis18m/min
X2 axis32m/min
Y axis32m/min
Z1 axis32m/min
Z2 axis32m/min
MotorsFor spindle drive2.2/3.7kW
For tool spindle drive0.75kW
For back spindle drive1.1/1.5kW
For cutting coolant oil0.25kW
Input power capacity6kVA
Center height1,050mm
Weight2,550kg

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