Unveiled at its recent DIMF exhibition in South Korea, the new, compact DNM 350 5AX range of 5-axis machines from Doosan will be available to UK and Irish manufacturers from July 2011 via Mills CNC – Doosan’s exclusive UK and Ireland distributor in the UK.

The DNM 350 5AX is the second Doosan 5-axis machine tool range to be launched by Mills in the last 18 months – the first being the larger capacity VC 630 5AX – which, is now also available with an integrated workpiece pallet changer.

Although the machine is classed as an entry level 5-axis model, the DNM 350 5AX is designed for full simultaneous 5-axis or 4 + 1 machining. The machine is versatile and can be used for high accuracy machining, heavy metal removal and fine finishing operations.

Features include a rigid C-frame construction with excellent vibration and heat dissipation characteristics. Although the machine has a relatively small footprint it has a 350mm diameter table capable of handling workpieces up to 250kg in weight. Users can choose between Fanuc or Heidenhain control and a variety of spindle option with speeds of 12,000rpm or 20,000rpm. The machine also features the dual contact 'Big Plus' face and taper configuration for increased rigidity and machining performance.

Axis travels are 400mm x 665mm x 500mm in X, Y and Z with corresponding traverse rates of 36m/minute (X), 36m/minute (Y) and 30m/minute (Z). The machine's 5-axis capability is delivered through the use of an A- and C-axis enabling users to machine parts (simultaneous 5-axis or via 4 + 1 operations) by using the DNM 350 5AX’s trunnion (30/-120° of movement) and rotary table configuration (continuous 360° of movement in the C-axis in 0.001° increments). Rapid rates in the machine's A-axis and C-axis are 20rpm and 30rpm respectively.

The DNM 350 5AX is equipped with a 30, 40 or 60 position bidirectional ATC (BT 40) with a tool change time (T-T-T) of 1.3 seconds. Other standard features include automatic tool measurement (TS27R), a spindle head cooling system for improved thermal stability and Doosan’s Thermal Compensation function to reduce the effects of thermal growth. Options available comprise through spindle coolant capability and linear scales on the X, Y and Z axes.

Mills CNC managing director, Nick Frampton comments: “The DNM 350 5AX is a high performance machine that we believe is a logical and natural progression for those manufacturers looking to make that step up to 5-axis machining.

“Like all the Doosan machines we sell, it is reliable, competitively priced and backed by Mills’ comprehensive technical support and aftersales service.”

Mills CNC
www.millscnc.co.uk