Okuma 2SP-V60

The Okuma 2SP-V60 is a twin-spindle vertical turning center designed for high-productivity chucking work on medium-to-large disc, flange, and ring-shaped parts. The machine's vertical spindle orientation uses gravity to aid workpiece seating in the chuck, eliminating the sag and deflection that horizontal turning creates on large, heavy, short parts. With a maximum turning diameter of 630 mm (24.8 in) and a maximum turning length of 460 mm (18.1 in), the 2SP-V60 is built for the brake disc, ring gear, bearing ring, and valve body segments where vertical turning delivers consistent quality at high throughput.

The twin-spindle layout is the defining characteristic of the 2SP-V60. Two opposing spindles — upper and lower — allow a workpiece to be loaded into the lower spindle, machined, automatically transferred to the upper spindle for back-face operations, and unloaded, all within a single cycle. Gantry-style loading is commonly integrated directly to the machine for fully automated cell operation. This architecture eliminates the manual flip and re-chuck step that limits horizontal turning center throughput on parts requiring both-end machining.

Each spindle runs on Okuma's direct-drive motor technology, with the main spindle rated at 1,500 RPM and substantial low-end torque for heavy facing passes on cast iron and steel. Spindle motors use Okuma's Thermo-Friendly Concept construction, which uses structural symmetry and sensor-based compensation to maintain dimensional stability as the machine warms up — critical for holding tight face runout tolerances on brake discs and bearing rings. The 8-station turrets provide tooling for standard turning and boring operations; live tooling is available on configured variants for cross-drilling and milling operations.

Control is Okuma's OSP-P300L CNC, which includes the Machining Navi vibration suppression system, Tool Life Management, and Okuma's Collision Avoidance System. OSP-P300L interfaces with standard robot loaders and gantry systems via I/O and PLC connectivity. The machine weighs approximately 14,000 kg (30,865 lb). The vertical configuration keeps the machine footprint compact relative to the chuck size — the 2SP-V60 occupies less floor area than a pair of horizontal chuck lathes producing equivalent throughput.

Competitors include the Okuma 2SP-V40 (smaller, 400 mm diameter), Mazak VRTEX series, and DMG Mori Sprint vertical turn-mill centers. The 2SP-V60 is priced between $700,000-$1,100,000 new, justified for automotive brake, transmission, and differential component lines as well as bearing, fluid power, and valve manufacturing. The twin-spindle vertical architecture is specifically designed for lights-out production with robot loading.