More in the bore

MAG is an established machine tool and systems company offering a comprehensive line of equipment and technologies including process development, automated assembly, turning, milling, automotive powertrain production, composites processing, maintenance, automation and controls, and core components. It serves a number of key markets including aerospace, automotive and truck, heavy equipment, rail, solar energy, wind turbine production and general machining, but its new VDF 800 DUS Big Bore CNC lathe, with 365mm spindle diameter, 820mm swing over the bed, 8,000kg part capacity and 20kN Z axis cutting force, has been designed specifically for oil and gas applications. Ideal for drill string parts and pipes, the machine has a main drive rated at 37kW (50hp) continuous, 55kW (74hp) maximum, with 7,200Nm maximum torque. A 900rpm top speed – nearly twice as fast as comparable lathes according to MAG – gives the machine the flexibility to handle a wide range of smaller diameter parts by maintaining the tool surface speeds needed to produce required finishes. The two speed automatic transmission is mounted behind the headstock to eliminate thermal effects caused by the gearing, with a backlash free overload coupling to protect the gearbox. The machine's A20 spindle is supported with a thermally optimised arrangement of lifetime lubricated bearings that includes a 460mm diameter front bearing to comfortably withstand maximum loads and speeds. The VDF 800 DUS is available with a Siemens or Heidenhain CNC, which is supplemented with an operator panel and ergonomically designed handwheels for setup or teach type programming. For optimum shopfloor flexibility in running small batches of different parts, the CNC can be taught a cutting routine using the handwheels, with the CNC replicating that routine on subsequent parts. The machine is built on a torsionally stiff, box type Meehanite cast iron bed, 560mm wide that retains its core sand to enhance vibration damping for longest tool life and smooth part finishes. Hardened double ‘V' guideways and an oversized cross slide provide high stability for the tool carrier and distribute high axial cutting forces to prevent skewing. Large chip chutes in the bed ensure smooth flow of swarf to the chip pan at the rear, preventing heating of the bed, while sliding doors on the rear of the machine allow easy access for chip disposal. The machine's power supply, electric cables, power tracks and coolant pump are all located outside the workzone to simplify maintenance and protect them from coolant and chips. The VDF 800 DUS Big Bore is available with turning length sizes of 1m, 2m, 3m and 4m as standard, and up to 20m optional. MAG
www.mag-ias.com