Among four new machine launches from the Citizen and Miyano camps under the ‘Innovation’ banner of Citizen Machinery Miyano Co at EMO 2011 in Hannover, will be a first-ever sliding head capacity option of 35 mm bar size on the fourth generation of top-of-the-range CNC sliding head turn-mill centre the Citizen M32.

The significance of the new M32 machine in VIII specification is the added benefit of a third Y-axis cross traverse applied to the back toolpost and an additional B-axis with rotary tools on the gang tool post. The machine will be demonstrated at the exhibition alongside the latest developments in the Citizen L20X and two fixed head turn-mill centres from Miyano, the BNA 42DHY and top-of-the-range ABX 64SYY.

Said Geoff Bryant, managing director of Citizen Machinery UK: “These machines incorporate important developments to aid productivity in sliding head and fixed head machine tool technology, hence Citizen’s use of the ‘Innovation’ theme. These machines will also be installed and demonstrated at our Bushey, Watford headquarters following the EMO exhibition for our Open House being staged between 4 and 6 October.”

Like the Citizen M32, the L20X has the added flexibility from an additional Y-axis, this time on the back spindle to provide an unrivalled increase in capability for simultaneous front and back machining with the ability to carry up to 39 tools. Most important for increased setting flexibility is the addition of two double row toolposts, operating front and back to both spindles. Each has one row with driven positions. The machine will also now accommodate the growing demand for drilling holes up to 100 mm in depth with tools up to 10 mm diameter.

The first showing of the new Miyano ABX-64SYY with 64 mm bar capacity, 6 inch chuck option, and twin spindles serviced by two 12-station, all-driven turrets each with ±40 mm of Y-axis cross travel will demonstrate Miyano’s proven capability for single cycle and fully automatic machining when used in production cells. It also has the capability to machine long shafts with its Z-axis of travel of 721 mm.

Automatic part transfer between the 15 kW main and 7.5 kW secondary spindle is carried out at 30 m/min and the inclusion of Miyano’s own ‘Stealth’ technology in the Fanuc control enables on-site fine tuning of the machine to account for individual working environments or tailoring the machine to suit specific applications.

Meanwhile, the compact six-axis Miyano BNA-42DHY features a main and secondary spindle with an eight station, all-driven Y-axis turret and a totally independent six-station sub-turret. With this added flexibility the BNA should be some 20 per cent faster in performing one-hit cycle operations compared to a single turret turning centre configuration.