The range of Wele MG and MG-U (universal) high capacity, moving gantry multi-purpose machining centres have a working volume up to 20,000 mm in X, 5,000 mm in Y and a Z-axis of 1,400 mm. Tables are up to 16,000 mm by 4,800 mm and are well able to accept loads up to 2,500kg/m² of area.

Available through EDM Shop, the two largest variants of MG and MG-U, designated 1650, have a high rigidity build standard with a shipping weight of some 148 tons. While the MG has an automatic multi-head exchange capability, able to store up to five units on the machine, the MG-U incorporates an AC tilting head giving full 5-axis simultaneous operation.

Key in the machine’s heritage is its development through Wele Mechatronic that forms a strategic alliance company within the JTEK Group, a subgroup within car maker Toyota. JTEK also owns the high specification machine, cell and system builders Mitsui Seiki and Toyoda Machine Tool.

The standard BT50 spindle is 35kW with 740Nm of torque available through a two-stage gearbox giving 10 to 6,000rpm. There are further speed options of 4,000 or 8,000rpm or a direct drive Fanuc built 23kW unit having a maximum speed of 10,000rpm.

Each slideway is equipped with ultra-heavy precision roller linear guideways and the use of twin synchronised servo motor drives on the X-axis incorporate a Wele patented backlash elimination system. Linear scales ensure positioning accuracy of ±0.025 mm over the full travel with a repeatability of ±0.010 mm. Rapid traverse rates in X are 10m/minute and 12m/minute in Y and Z.

Control options are Fanuc 18iM or Heidenhain iTNC 530 with fourth axis preparation and CNC rotary table options. Key as a setting aid over such a large machining volume is the choice of a swing type or hanging style operator panel with the addition of a portable 3-axis remote unit with handwheel. The tool magazine has 32 pockets as standard taking tools up to 215 mm diameter by 400 mm long.

For more information contact EDM Shop on TEL: 011 762 5231 or visit www.edmshop.co.za