The OKUMA MULTUS B300II is an advanced multitasking CNC machine designed to combine turning and 5-axis milling operations in a single platform, enabling complex parts to be completed in one setup. Built with a rigid cast-iron slant-bed structure and advanced thermal stability design, the machine delivers exceptional rigidity, vibration damping, and long-term dimensional accuracy. Its integrated main and sub-spindles, along with a powerful B-axis milling spindle, allow for simultaneous turning and milling operations, significantly reducing setup times, part handling, and production errors. This makes the MULTUS B300II ideal for high-precision manufacturing environments where efficiency and accuracy are critical.
The machine is equipped with Okuma’s OSP-P CNC control system, which offers intuitive programming, fast processing speeds, and advanced features such as thermal compensation, collision avoidance, and automation integration. The B-axis milling spindle provides high-speed and high-torque performance for complex contouring, drilling, and tapping operations, while the turret and tool magazine systems support a wide range of tooling configurations for flexible machining. Automation-ready features such as part catchers, bar feeders, and robotic interfaces further enhance productivity and enable unattended operation in high-volume production settings.
The OKUMA MULTUS B300II is widely used in aerospace, automotive, medical, and precision engineering industries for producing complex, high-tolerance components such as shafts, housings, and intricate machined parts. Its ability to perform complete machining in a single setup improves part accuracy, reduces cycle times, and streamlines manufacturing workflows. With its combination of multitasking capability, precision, and advanced control technology, the MULTUS B300II is a powerful solution for manufacturers seeking maximum flexibility, productivity, and quality in modern CNC machining operations.
OKUMA MULTUS B300IISPECIFICATIONS
TRAVEL & CAPACITY
Max Turning Diameter: 600 mm (23.62 in)
Max Turning Length: 1,050 mm (41.34 in)
Bar Capacity: 80 mm (3.15 in)
X-Axis Travel: 630 mm (24.80 in)
Y-Axis Travel: ±100 mm (±3.94 in)
Z-Axis Travel: 1,050 mm (41.34 in)
B-Axis Rotation: 225° (–120° to +105°)
SPINDLE (MAIN)
Spindle Nose: A2-6 or A2-8 (configurable)
Max Speed: 5,000 rpm
Spindle Power: 22 kW (30 hp)
Bore Diameter: 91 mm (3.58 in)
Torque: ~400 Nm
MILLING SPINDLE (B-AXIS HEAD)
Max Speed: 12,000 rpm
Tool Taper: HSK-A63 (optional CAPTO C6)
Milling Spindle Power: 15 kW (20 hp)
TOOL MAGAZINE
Tool Capacity: 40 tools standard (expandable)
Tool Change Time: ~2.5 seconds
Max Tool Diameter: 90 mm (adjacent), 125 mm (non-adjacent)
Max Tool Length: 300 mm
Max Tool Weight: 8 kg
SUB-SPINDLE (OPTIONAL)
Speed: Up to 6,000 rpm
Power: 11 kW
Enables complete part machining (front and back)
FEEDRATES
Rapid Traverse (X/Y/Z): 40/25/40 m/min
C-Axis Resolution: 0.001°
B-Axis Positioning: 0.001°
COOLANT & CHIP CONTROL
Coolant System: Standard flood, optional high-pressure
Chip Conveyor: Optional
Mist Extractor: Optional
CONTROL SYSTEM
Okuma OSP-P300S
Touchscreen interface with conversational and G-code programming
5-Axis auto-tuning system
Thermal compensation and collision avoidance
USB, Ethernet, remote monitoring support
OKUMA MULTUS B300II – GENERAL INFORMATION
Model: Okuma MULTUS B300II
Machine Type: Multi-tasking CNC Turning & Milling Center
Configuration: B-axis head, live tooling, sub-spindle optional
Control: Okuma OSP-P300S
Structure: Box slant bed with rigid thermal-stable design
Application: High-precision, complex machining with full 5-axis capability
