A dynamic duo

The two machines – the DVF 6500 (650mm diameter table) and the larger capacity DVF 8000 (800mm diameter table) – are from the same stable as the highly-popular Doosan DVF 5000 machine successfully launched in the UK and Ireland 18 months ago.

The new DVF machines share many similarities. Both are compact and have a rigid and stable structure for increased accuracies, improved surface finishes and greater process reliability. They are also fast, with impressive 45m/minute rapid rates, and are equipped with powerful, oil-cooled, directly-driven BT40 spindles (up to 22kW/18,000rpm) that deliver excellent cutting performance, irrespective of whether 3 + 2, 4 + 1 or full 5-axis simultaneous machining is the order of the day.

The machines also feature servo-driven automatic tool changers (up to 120 tools) with a 1.3 second T-T-T changeover time that increase the machines’ flexibility, roller LM guideways that deliver increased speed, accuracy and reliability, and direct-drive rotary tilting tables (A-axis ±120°; C-axis 360°).

The DVF 6500 and DVF 8000 machines can be supplied with a choice of controls (Fanuc 31iB5, Heidenhain TNC640 or Siemens 840D with ShopMill software), and are supplied with thermal compensation systems (spindle and structure) and a long-life, grease lubrication system. A Collision Protection System can also be supplied as an option.

Both machines can also be supplied with a range of different automation solutions that increase their productivity, and enable manufacturers to take advantage of unattended and lights-out operations.

The DVF 6500 and DVF 8000 have different-sized travels (DVF 6500 = 750mm x 785mm x 600mm: X-, Y- and Z-axis; DVF 8000 = 1,000mm x 900mm x 685mm: X-, Y- and Z-axis), and different table loads – up to 1,000kg and 1,400kg respectively.

Within the DVF 8000 range a specific ‘Turning’ model can be specified. The DVF 8000T, with its integrated function, has the same technical specification as the DVF 8000 in most respects except for a lighter maximum table load (700kg), and a faster C-axis feed rate (600rpm).

Tony Dale, Mills CNC’s technical director says: “The depth and breadth of Doosan’s already highly successful 5-axis machining centre range is second to none. The introduction of these two new models will be of interest to component manufacturers looking to improve their productivity and make one-hit machining a reality.”

Mills CNC www.millscnc.co.uk