
The Citizen A20-VII combines modern technology and the highest precision for the efficient production of turned parts up to 20mm in diameter. This latest model now includes an additional X2 axis on the sub-spindle and an additional 4 tools available on the new back-working toolpost. This allows even greater simultaneous machining possibilities over the previous type VI model.
7 axes, 5 turning tools, 4 rotary tools and in total 12 tools for front and back machining are fitted as standard allowing great flexibility.
Maximum cutting length is 165mm in one chucking. However, with the optional long work piece unit, components up to 400 mm can be machined. Plenty of power is available with the main spindle driven by a 3.7 kW motor and the sub-spindle 1.5 kW. The rotary tool drive also has a 0.75 kW, AC spindle motor giving 6,000RPM.
Rapid traverse rate is increased to 32m/min from 18m/min for type VI for a further reduction in idle time. The latest Cincom Control technology uses special Citizen software to overlap and superimpose axis movements and tool changes.
Comprehensive standard equipment, space-saving design, easy operation, low running costs and high productivity - all at an extremely attractive price makes the A20-VII a must-have for newcomers to sliding head lathes and for replacement of cam-controlled lathes or for the production of simple turned parts.
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Vertical Tool Holder
End Working Holder 1
End Working Holder 2
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| Work Area view showing the axis configuration | ||
Sub Spindle
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Main Spindle
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The latest generation super-fast Fanuc 32i control has an NC scanning time is half that of current models. CNC processing, PLC functions and Macro execution time are also much improved.
Incorporates the latest Cincom Control technology using special Citizen software to overlap and superimpose axis movements and tool changes.
The fully positionable control console enables the operator to observe the machining area and the program on the monitor at the same time. The handwheel feature provides the operator with a safe and convenient means of proving out programs prior to selecting the automatic mode, particularly useful to newcomers to CNC operation.
The storage and input of program data is simplified by the PC memory card slot (PCMCIA aka. PC Card).
Existing users of the A20-VI can benefit from the program conversion function that automatically converts programs written for the A20-VI to the A20-VII.
Standard
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OptionalChoice of Barfeeder Coolblaster High Pressure Coolant Fume Extraction Long Parts Adaptor Swarf Conveyor
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CNC Wizard |
Low-cost Programming Aid for Citizen machines for faster and easier part-program creation. The software leads you through creation of your part-program using clear diagrams, photos and text. A simple program can be potentially be written in a matter of minutes! Full editing and communications features are built into the software along with program validation checks. Ideal for both new and experienced Citizen users. |
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Alarm alerting system |
Automatically inform designated people in your organisation if an alarm occurs on one of your Citizen machines. Up to 100 machines can be simultaneously monitored. The message delivery can be via. voice message to land-line or mobile, SMS text message to a mobile or Email. Multiple recipients can be specified for each machine. This system is ideal for those running the machine unattended overnight. |
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Technical Data |
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A20-VII |
A32-VII |
Axes |
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Number of axes |
- |
7 |
7 |
Main spindle |
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Max. turning diameter |
mm |
20 |
32 |
Max. turning length (in one chucking) |
mm |
165 |
320 |
Spindle speed |
RPM |
8,000 |
8,000 |
Drive rating |
kW |
3.7 |
5.5 |
No. of turning tools |
- |
7 |
6 |
Number of tools for front-end machining |
- |
4 |
4 |
C-Axis [°] |
° |
0.001 |
0.001 |
Sub-spindle |
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Max. workpiece diameter |
mm |
20 |
32 |
Max. workpiece length |
mm |
80 |
150 |
Drive tating |
kW |
1.5 |
2.2 |
Spindle speed |
RPM |
8,000 |
8,000 |
Number of tools for back-end machining |
- |
8 |
9 |
C-Axis |
° |
0.001 |
0.001 |
Driven Tools |
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No. of Driven Tools (transverse) |
- |
3 |
4 |
Driven Tool Motor Power |
kW |
0.75 |
1.0 |
Driven Tool Max. Speed |
RPM |
8,000 |
5,000 |
Other Information |
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Axis rapid Traverse |
m/min |
32 |
45 (X1 axis=32) |
Space Requirement |
mm |
2100x1185 |
2527x1230 |
Weight |
kg |
2400 |
2800 |
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