Mazak introduced turning capabilities into its VariAxis Series of multiple-surface, simultaneous five-axis machining centers with the VariAxis i-700T. An 18,000-rpm, 40-hp 40-taper spindle on the VariAxis i-700T features a compact nose design for better part access during side machining operations, where pallet interference might otherwise be a problem. A 30-tool automatic tool changer adds part processing flexibility and contributes to continuous non-interrupted machining operations.

With a Y-axis travel of 43.30" and X-axis of 23.62", the VariAxis i-700T easily accommodates workpieces measuring up to 28.74" in diameter and 19.69" high. Its roller gear cam-driven rotary/tilt table, with 360 degrees of rotation in the C-axis and +30 degrees through -120 degrees of tilt in the A-axis, is supported at both ends and provides stable high-accuracy five-axis machining. 

Furthermore, a direct-drive motor powers the rotary table for both C-axis positioning and turning operations with a maximum spindle speed of 1,100 rpm. The machine performs turning when the A-axis is in the 0 or 90-degree position. The A-axis rigidly clamps to a coupling in either of these positions, allowing for high-accuracy machining over extended periods of operation.  

With fast 2,362 and 2,205 rapid traverse speeds in the X, Y and Z axes, respectively, as well as the durability, reliability and speed of its MX Hybrid Roller Guide System, the VariAxis i-700T achieves an overall increase in accuracy, productivity and profitability. Mazak designed its MX Hybrid Roller Guide System to increase vibration dampening, extend tool life, handle higher load capacities and eliminate tramp oil in the coolant by utilizing a greener grease-based lubrication system.

The VariAxis i-700T sports the new Mazatrol SmoothX CNC that is a key element – along with new machine hardware and servo systems – of Mazak’s Smooth Technology, a complete process-performance platform that spans the entire part-production landscape from programming and setup to metal removal operations and automation to monitoring and data collection/transfer.

At IMTS, Mazak paired the VariAxis i-700T with an optional two-pallet changer to demonstrate how easy it is to achieve continuous part processing. This simple and efficient automation feature enhances productivity by allowing operators to load, unload and inspect a part on one pallet, while the machine continues to work on a part fixtured on the other pallet.