Chiron's DZ range of twin-spindle vertical machining centres represent the ultimate in fast and flexible machining through the provision of comprehensive tooling and worktable configurations.

With up to twin 36-tool magazines available through the four-machine series, DZ models can be supplied with a fixed-table pendulum machining capability that extends the X axis travel to 8,000 mm or beyond, to suit customer specification.

Alternatively, the machines can be fitted with twin rotary tables or one fixed and one rotary table, to provide a shuttle machining envelope of four by 400 mm in X. In these cases, work can be loaded/unloaded on one side while machining is carried out on the other.

With Y and Z axes travels of 300 mm by 425 mm (on the model DZ12), the machines also boast Chiron's characteristic fast operation features. Spindle speeds are up to 15,000 revs/min, rapid traverses reach 40 m/min, while the super-fast tool change time of 1 sec is complemented by a chip-to-chip time of 2.9 secs (3.9 on the DZ28, the largest in the range). These are exceptional performance figures for a machine in this class.

Both toolchanger and tool magazine are located outside the working area, being totally suspended yet enclosed above the spindle. This prevents contamination by swarf and coolant.

Dry machining routines are accommodated by the novel bed design that has smooth, rising sides to ensure unobstructed chip flow. The mid-range DZ 18L typifies how DZ machines can be configured to suit a wide variety of machining permutations.

Powered by two 18 kW motors, spindle speed on the DZ 18L extends from 20 to 10,500 revs/min and torque is quoted as 140 Nm. Rapids across the X, Y and Z axes are 40 m/min. Toolchangers are available to carry twin sets of 12, 24 or 36 tools.

Machining capacities for both spindles are: drilling - 42 mm; tapping - M30; milling 200 cm3/min (in ST 60). Through-the-tool coolant, supplied at 70 bar, and integrated tool measurement and management are supplied as standard.

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