We have developed a B-axis ATC (Automatic Tool Changer) while keeping the operability of the best-selling L20 machine unchanged.

Citizen’s unique, compactly designed ATC tooling with B-axis can be mounted on the gang tool post to enable use of a total of 13 front machining B-axis tools, comprising 12 ATC tools and one tool built into the tooling. (L20XII dedicated option).

  • With the L20’s operability unchanged, using the ATC tooling in conjunction with existing turning tools and cross machining rotary tools combines the machining speed of a Swiss-type automatic lathe thanks to the gang tool post. With the versatility of a B-axis turning center equipped with an ATC.
  • The capability for machining complex parts like medical parts including implants, the ATC provides an environment where the tool setting for machining several types of workpieces can be completed in a single setup.
  • B-axis machining, the ATC tooling can also be used in a wide range of applications such as those with a lot of cross/ end face machining, utilizing a wealth of tool variations including slitting/hobbing.
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Max. rotary tool speed on ATC tooling 12,000 min
Motor output 2.2 kW
Tool holder type JBS -15T
Number of B-axis tools 12 (magazine) + 1 (built-in)
Total number of tools mountable on machine 34 max.(including B-axis tools)
Tool change time (chip-to-chip) 4.0 sec
Maximum tool outer diameter φ 30 mm
Maximum tool gripping diameter φ 10 mm (ER16)

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