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Citizen Machinery provided Machined Components Systems (MCS) with eight Miyano fixed head mill-turn centres for the production of parts and components for the automotive, petro-chemical, environmental, transport, marine, health care and white goods sectors.

Citizen Machinery supplied Machined Components Systems (MCS) with eight Miyano fixed head mill-turn centres over a number of years.

MCS manufactures a range of turned, milled and drilled parts and machine components for applications within the automotive, petro-chemical, environmental, transport, marine, health care and white goods sectors. Its long-term supply agreements often involve product development and input, and sometimes open book costing.

A Miyano ABX-64TH2 was bought to machine a casing for a product that helps to determine leaks in pipework and was able to complete the part in one cycle, thereby halving the time taken compared to MCS’ previous method.

For the production of a Jaguar Land Rover steering column sleeve — which incorporates an internal taper and is produced in volumes of 5,000 per week — a Miyano BNJ-51SY2 was purchased. The machine incorporates a 11kW spindle, a 5.5kW secondary spindle with two turrets and Y-axis.

Key information

  • The Miyano ABX-64TH2 features two spindles and three turrets and is available with a range of 36 tools.
  • A Miyano LZ-02RY2, which includes an 8in chuck and 100mm turning diameter, halved the cycle times for the production of components originally produced using a fixed-head lathe.
  • This year, MCS purchased a Miyano BNA-42S fixed-head turning centre for manufacturing EN16 taper rings for Jaguar XF suspension arms.
  • The bar-fed BNA-42S combines back and front machining to complete the single-cycle task, and uses up to 16 tool positions on the eight-station turret.
  • It features 7.5kW power to the main spindle, which gives 5,000revs/min and 5.5kW, 5,000 revs/min for the sub-spindle.
  • Each of the tool positions on the Miyano BNA-42S is powered by 2.8kW, 5,000 revs/min motors.
  • Its Fanuc control includes software with the ability to overlap different functions.

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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