Burkhardt+Weber MCX 800

The Burkhardt+Weber MCX 800 is a pallet machining center for heavy cutting on mid-size parts: 1,250 x 1,000 x 1,250 mm of X, Y and Z travel, an 800 x 800 mm standard pallet carrying up to 2,500 kg, and a geared spindle rated 41 kW and 1,220 Nm at 100% duty.

The spindle figures explain the machine. A torque of 1,220 Nm at a continuous rating is roughing torque for steel and cast iron, and it comes through 2 gear steps over a speed range of 20-5,500 min-1 (revolutions per minute). Burkhardt+Weber gives 10,000 min-1 in brackets, which reads as an alternative top speed, without stating what torque goes with it, so a shop that needs both heavy roughing and fast finishing should ask for the torque curve of each spindle. Maximum tool weight follows the same pattern: 60 kg, with 75 kg in brackets.

The work envelope is larger than the pallet suggests. Workpiece swing is 1,500 mm in diameter and 1,300 mm high, nearly twice the pallet width, so fixtures and tombstones can overhang the pallet as long as the 2,500 kg load limit is respected. An optional working range of 1,400 x 1,200 x 1,500 mm in X, Y and Z is listed for parts that need more travel. Rapid traverse is 65 m/min on all three linear axes, quick for a machine built around torque.

Tool storage is given as 128-800 tool pockets, a span that implies several magazine sizes; which one is quoted matters for unattended running with duplicate tools. The table does not list a spindle taper, a control or a machine weight, so those belong on the list of questions for the quotation. Next to the MC Series Horizontal Boring Mill, whose optional rotary tables start at 1,400 × 1,400 mm, the MCX 800 is the choice for work that fits a pallet.