Centre through 2D CNC machinery
The latest addition to the high specification Wele range of machining centres is the HMC500 horizontal spindle version which combines high stability with positioning accuracy of +/- 0.005 mm in X, Y and Z axes and a repeatability of +/- 0.003 mm over full working strokes of 640 mm in X, 610 mm in Y and 680 mm in Z. With 60 m/min rapid traverse rates in each axis, positioning times are reduced contributing to shorter cycle times and higher levels of productivity.
Launched in the UK by 2D CNC Machinery of Hinckley, the 500 mm twin-pallet machine (with option of 400 mm pallet size) has a maximum workpiece capacity within a cylinder diameter of 750 mm by 900 mm high with a full B-axis. The B-axis has 1,600 Nm of torque and a positioning accuracy of 10 arc secs with a repeatability of 6 arc secs. It features a Zero-Clamping system via four radial pre-tensioned tapers to ensure perfect alignment. Index times are 1.5 secs with pallet interchange time within 7 secs.
The built-in 22 kW, BIG-PLUS dual-contact spindle with high rigidity and high orders of runout control has a speed range between 40 and 15,000 revs/min with up to 167 Nm of torque available through a low and high range transmission. Spindle acceleration and deceleration is with 3.3 secs. In order to minimise deformation caused through variable cutting forces or thermal effects, the spindle head is mounted between twin box-type gantry columns and the cast iron bed is supported via three point levelling to further minimise distortion.
There is a 60 tool magazine with 3 secs chip-to-chip time capable of carrying tools up to 80 mm diameter or 160 mm dia with adjacent pockets left empty. Maximum tool length is 400 mm. Control is via Fanuc 0i-MF.
