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CITIZEN A20-VII

The new Citizen A20-VII combines modern technology and 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 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 8,000 revs/min.

Rapid traverse rate is increased to 32m/min from 18m/min for type VI for a further reduction in idle time.

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, for replacement of cam-controlled lathes or for the production of simple turned parts.

• New high speed Fanuc 32i control with 'Streamline Machining' technology
• Special Citizen software to overlap and superimpose axis movements
• Special macros for overlapping of rapid approach of next tool over approach of previous tool.
• Higher rapid traverse
• Higher axis acceleration and deceleration

• 80% heavier construction - excellent damping of vibration.
• Higher axis acceleration and deceleration

• 165mm headstock stroke (with rotary guide bush)
• C-axis main spindle / sub spindle as standard
• 150l Coolant Tank

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.

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. This is particularly useful to newcomers to CNC operation.

The storage and input of program data us simplified by the PC memory card slot (PCMCIA aka. PC Card).

Citizen's renowned ease of use, including the program prove-out handwheel, helps operators achieve fast changeovers.

• 5 turning tools
• 4 end working tools (front)
• 8 end working tools (back)
• 4 rotary cross tools (0.75kW)