Miyano benefits from Citizen software to slash cycle times

The Miyano 42 mm bar diameter BNJ-42SY3 is the first of the new Series 3 turn-mill centres that will provide greater power and rigidity for high productivity turn-milling of harder materials and features a compact footprint.

The new range has the advantages gained from the latest Fanuc control integrated with a Miyano interface, the company's 'Stealth' thermal tuning technology for maximising stability in the working environment and Citizen software, which will reduce idle time, and takes the BNJ machine into a different league of price-per-part-performance. Requiring a floor space of just 2.7 by 1.5 m, the machine is the first from the fixed-head turn-mill specialist to feature Citizen software. This significantly improves cycle times, through combined and overlapped movements. A 5 inch chuck can be mounted on both the main and sub-spindle, enabling larger billet-type work to be machined up to 90 mm turning diameter. The machine has a main 11 kW spindle, giving 6,000 rpm, and a 5.5 kW, 5,000 rpm sub-spindle. Both are serviced by an all-driven main 12-station and a six-station back-working turret. Driven tools offer 20 Nm of torque via the 2.5 kW, each capable of 6,000 rpm. The turret will accommodate drills up to 13 mm dia and taps up to M8x1.25p. Two mechanical and operational elements support reduced idle time, with the introduction of two concave sections in the backworking turret and the ability to install an off-centre collet in the rear spindle. As the back-working turret finishes an operation and indexes, the concave section immediately vacates the working zone, allowing the rear spindle to simultaneously feed forward to gain access to any rearward facing tools mounted on the main turret, while its forward facing tools are still engaged with the main spindle. By installing the off-centre collet in the rear spindle and executing an up to 70 mm X-axis shift, off-centre machining, contouring and parting-off using an endmill, rather than conventional blade can be performed. The Y-axis with + 40 mm of stroke can be 'de-specified' from the machine as an option, which enables enhanced side milling, large diameter planetary threading and the effective machining of features such as flats, pockets and bosses on the outside of the component, using circular and linear interpolation.