GF Mikron MILL S 800

The Mikron MILL S 800 is the long-travel machine of GF Machining Solutions' MILL S/X series: 800 x 600 x 500 mm, a 900 x 600 mm table rated for 1,000 kg, an 800 x 600 mm pallet clamping surface and 61 m/min rapids. Spindles are the same two the series offers at this size, 36,000 rpm HSK-E50 (33 kW) or 42,000 rpm HSK-E40 (8.8 Nm).

Set against the Mikron MILL S 600, almost everything is shared: the table, the Y and Z travel, the 9,900 kg machine weight and the spindles. Two figures change: X grows from 600 mm on the Mikron MILL S 600 to 800 mm, and the table rating from 500 kg on the Mikron MILL S 600 to 1,000 kg. For long mould plates or heavy die inserts that is the whole case for this model. The HSK-E50 magazine list also starts lower, at 15 or 30 pockets, and runs through 60, 120, 170 and 220; the HSK-E40 spindle takes 68 or 168.

The Mikron VCE 800 Pro has the same 800 mm of X but a different purpose. The Mikron VCE 800 Pro has 500 mm of Y, 540 mm of Z, a 910 x 500 mm table rated for 1,100 kg and spindles of 10,000 or 16,000 rpm. The MILL S 800 gives up some Z and load capacity for spindles that turn 36,000 or 42,000 rpm, which is what fine surface work in hardened steel calls for. The Mikron MILL E 800, with 850 x 600 x 600 mm and a 1050 x 600 mm T-slot table for 1000 kg, is the other alternative when more Z matters more than spindle speed.

Control is Heidenhain TNC 7 or Siemens SINUMERIK ONE. Combined milling and jig grinding is a feature of the MILL S/X U series, not of the MILL S 800 as listed, so ask GF which variant you are quoted.