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Citizen Machinery UK has introduced the Ocean Cincom LZ, a compact, high-production turning centre with fully integrated self-load and unload for parts requiring up to 100mm turning diameter by 80mm turning length involving billet, forged blanks or pre-machined components.

The arrangement of the loading mechanism, turret and spindle, which incorporate an in-feed and an out-feed conveyor, enable the turning centre to be very compact; this configuration also allows chips to fall directly into the machine base where they are quickly ejected.

The LZ series design incorporates an X-axis cross feed and Z-axis forward stroke of the spindle, which operates simultaneously with the integrated double-gripper load/unload units to create a faster operational sequence.

Citizen Machinery will launch the machine at its UK open house events on 9–11 October 2012.

Key specifications

  • Machine series covers two 8in chuck capacities with the option of ±35mm of Y-axis cross feed to the turret
  • LZ-01R2 and Y-axis variant 01RY2 has a 70mm maximum turning diameter as well as a 50mm collet capacity
  • The main spindle is 7.5kW, 6,000rev/min
  • A 12-station (six driven) tool position turret uses a 2.5kW, 4,000rev/min motor
  • Y-axis travel is 245mm and Z-axis travel 240mm
  • Both R2 and Y2 versions will accommodate parts weighing up to 0.7kg per gripper
  • The larger 100mm-turning-diameter LZ-02R2 and LZ-02RY2 models have a 54mm collet capacity with a 10-station (five driven) tool position turret with a 2.5kW, 4,000rev/min motor
  • The main spindle is 11kW, delivering 5,000rev/min
  • The X-axis stroke is 300mm and the Z-axis stroke 240mm with a maximum component weight of 1.5kg per gripper

Citizen Machinery

Citizen is the world leader in CNC sliding head ‘one-hit’ turn-milling technology. It has a range of machines having a maximum bar capacity between 4 mm on the compact micro-machining capable Citizen R04 to 32 mm on the top of the range Citizen M32-VII which has the added capability of two Y-axis cross-feeds.   

The M32 can carry up to 80 tools, of which 20 can be driven, and can cut with three tools simultaneously giving low cycle times and high levels of productivity.  Also, fully automated unmanned cycles can be utilised through an integrated gantry option and conveyor system that helps ensure damage free parts during uninterrupted batch production.  A high pressure 2,000 psi CoolBlaster coolant system is a further option to optimise swarf control, tool life and machining difficult materials.

Following the acquisition in Japan in 2008 of 65 per cent shares in Miyano, the fixed head turning centre specialist, the two companies are maintaining their separate high profile brand names utilising a single sales operation.  However, turn-milling solutions from bar up to 64 mm diameter can now be provided.  In addition, with the Miyano range of turning and turn-milling machines for chucking operations, cell-type applications can now be accommodated with a wide range of automation options.   

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