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Turning up productivity with Dugard at MACH 2022

Posted on 12 Mar 2022. Edited by: John Hunter. Read 1135 times.
Turning up productivity with Dugard at MACH 2022Hove-based C Dugard Ltd will be showing several new machines at MACH 2022 (Hall 20, Stand 640). The UK’s national show will be taking place from 4 to 8 April at the NEC, Birmingham.

Taking centre stage will be two five-axis vertical machining centres — the Kitamura MedCenter5AX and the larger Dugard GTX-620. The Kitamura is a compact machine with a work envelope of 254 x 330 x 330mm, a 170mm-diameter table, an HSK-E40 30-30,000rev/min spindle, a 40-tool ATC that can change tools in just 1.5sec, a rapid-traverse rate of 60m/min, a speed 200rev/min for the A and C axes, and a pallet change system.

Moreover, with linear and rotary scales, ‘67 million pulse encoder technology’ and 16mm-pitch ballscrews, the MedCenter5AX achieves a positional accuracy of ±2µm ‘across the full stroke’ and a repeatability of ±1µm.

For the machining of larger components, Dugard will be introducing the GTX-620. This has a work envelope of 620 x 520 x 460mm and can accommodate workpieces up to 700mm in diameter on the table; this offers a full 360deg of rotation and a resolution of 0.001deg.

Also featured are a BT40 22kW 12,000rev/min spindle, and a B axis that tilts from -50 to +110deg. Control is via a Fanuc or Siemens 840D CNC system. Dugard can equip the GTX-620 with a range of options. These include linear scales, optical encoders, laser or contact tool-length measurement, chip flushing, and direct-drive HSK63 spindles rated at 20,000rev/min or 15,000rev/min.

Meanwhile, Dugard will give a MACH premiere to the Hanwha brand of sliding-head turning centres. On display will be a Hanwha XD38R which has a 38mm bar capacity, can be switched from guide bush to non-guide bush operation, and is available with either a Fanuc 32i-B or a Siemens 828D CNC system The main spindle is rated at 6,000rev/min 5.5/7.5kW, and the sub-spindle at 6,500rev/min 2.2/5.5kW.

The machine offers a range of tooling options, including five OD turning tools, five ER20M front-spindle tools, five cross-drilling tools, plus four fixed and four driven sub-spindle tools. The Hanwha XD38R can also be specified with a range of options such as bar feeders, chip conveyors, oil mist collectors, off-centre drilling and oil chillers.

Dugard will also be demonstrating one of its most popular machine tools at MACH — the SMEC SL2000ASY Y-axis horizontal turning centre. Based on a heavily ribbed single-piece Meehanite casting and ‘torque tube design’, it features box slideways (as do all machines in the SMEC range) and offers optimised vibration dampening and thermal displacement characteristics.

Featured are a 6in chuck for both the main spindle and sub-spindle (option of 8in on the main spindle), a 650mm swing over the bed, a maximum machining diameter of 395mm and a maximum turning length of 490mm. The SMEC SL2000ASY has a bar capacity of 52mm (optional 65mm) and an 11/18.5kW main spindle. Both spindles have a maximum speed of 6,000rev/min.