Chiron FZ 15W

The Chiron FZ 15W is a compact, single-spindle 5-axis machining center equipped with an integrated workpiece changer that drives spindle utilization above 90% in well-planned production environments. The "W" in the designation stands for Werkstuckwechsler (workpiece changer) — the defining feature that separates it from the swivel-head FZ 15S. While the spindle is cutting one part, the operator loads and unloads the next part outside the machining zone, eliminating load/unload downtime from the cycle.

The FZ 15W shares the 15 Series platform with X/Y/Z travels of 430 x 400 x 400 mm (16.9 x 15.7 x 15.7 in), mineral-cast bed, and linear direct drives on all linear axes. The integrated pallet changer swings parts into the machining zone with a change time of just a few seconds, keeping the spindle productive. Spindle options include HSK-A63 configurations up to 20,000 RPM standard and high-speed options up to 40,000 RPM. The basket-type tool changer holds up to 55 tools.

The workpiece changer transforms the FZ 15W from a flexible machining center into a production cell. In a typical setup, the operator has a comfortable window to load the next part while the current part is being machined. For longer cycle times, the operator can tend multiple machines. For shorter cycles, the pallet change speed ensures minimal gap between parts. The machine handles workpieces up to 350 mm diameter and 150 kg per pallet position.

New FZ 15W machines price between $350,000 and $500,000, with the workpiece changer adding roughly $30,000-$50,000 over the comparable FZ 15S. The ROI comes from the elimination of load/unload downtime — in an 8-hour shift, a well-utilized FZ 15W can produce 10-15% more parts than an FZ 15S, with the advantage growing on shorter cycle time parts. Competitors include the DMG Mori DMU 50 with pallet changer and the Hermle C 250 with workpiece handling. Used FZ 15W units from 2018-2023 trade between $175,000 and $325,000.