Tajmac-ZPS MCH1000i

Largest of the three ZPS horizontals, the MCH1000i works on 1,000 × 1,000 mm pallets and swings workpieces up to ø 1,400 × 1,300 mm (55.1 × 51.2 in). The column travels 1,400 mm in X; the spindle head moves 1,050 mm in Y and the rotary table 1,200 mm in Z.

Pallet area grows on this model, but the rated load does not. The maximum is 2,500 kg including the clamping fixture, the same figure the smaller MCH800i carries on 800 × 800 mm pallets. So the MCH1000i is the choice for wide, bulky parts such as large fabricated housings, frames and big aluminium castings, more than for denser ones. If your heaviest part already fits an 800 mm pallet, the extra X travel buys clearance, not capacity.

The maker stresses damping here. Its description of the MCH1000i speaks of outstanding damping and absorption of mechanical vibrations along with rigidity and thermal stability, on a T-shape bed with the column sliding in X. Feed forces are 20 kN in X and Z and 10.5 kN in Y, with 50 m/min rapids and 5 m/s2 acceleration. Listed accuracy to ISO 230-2 is 0.008 mm positioning error on the linear axes and 6 arc sec on B, measured directly.

For the B axis the table gives 11.1 min-1 with the standard worm gear and 43 min-1 with the optional torque motor; torque is 2,250 Nm and 2,440 Nm, and locking torque 5,800 Nm. The spindle nose reaches from 200 to 1,400 mm from the table axis.

Plan the building around it. The layout is 8,500 × 5,100 × 3,650 mm and the weight 33,500 kg. Two spiral conveyors and a central rake-type chip conveyor are standard, as are the 60-tool magazine and the two-pallet changer with its 20 s change time.