Experience prevails

The new Vturn-A26 CNC range includes a number of innovative new features including the upgraded structural rigidity of the range's headstocks, box slideways, turrets and carriages. Based on a one piece slant bed design, a Meehanite casting distributes stress throughout the Vturn-A26 structure. Enhanced accuracy and accurate alignment is ensured by each lathe's structure being precision machined in a single set-up, on a large five face machining centre.

Designed to increase loading capacity and to facilitate heavy cutting, NN type roller bearing are used throughout and to help prolong bearing service life, spindle oil coolers are included as standard, whilst a four layer labyrinth cover further protects spindle bearings.

Employing advanced Direct Drive Spindle technology (DDS), the Vturn-A26's spindle motor is integrated inside the headstock, eliminating the problematic vibrations that occur within belt or gear drives systems. This advancement is said to substantially improve spindle run-out, resulting in enhanced surface finish, good component roundness and prolonged consumable tooling life.

The A26's integral unit creates lower inertia than traditional drives, allowing faster acceleration time, further improving overall efficiency. A dual winding spindle motor gives similar operational characteristics to a two step gearbox, offering additional torque output at low spindle speed, when compared to conventional belt driven spindles.

A maximum milling speed of 4,000rpm, delivered by a servo motor, maintains a near constant torque output over the Vturn-A26's complete speed range whilst a VDI-40 milling turret, with coupling specifications of either DIN 5480 or DIN 1809, enables the quick tool changeover of commercially available VDI tool holders.

The proven reliability of Fanuc's 0i-TD controller is combined with Victor's custom designed PLC, to offer Vturn-A26 customers an efficient, integral control system with absolute reliability. A remote manual pulse generator (handwheel) is also provided as standard for easy tool calibration.

Victor Europe
www.victoreurope.com