The OKUMA LB3000 EX II is a high-performance CNC turning center engineered for precision, durability, and productivity in demanding machining environments. Designed with a rigid slant-bed cast iron structure, the machine provides excellent stability, vibration damping, and thermal accuracy, ensuring consistent machining results during heavy cutting and long production cycles. Its robust construction and box guideway design make it ideal for high-load turning operations where rigidity and surface finish quality are critical.
The LB3000 EX II is equipped with a powerful spindle that delivers high torque and speed, enabling efficient machining of a wide range of materials including aluminum, steel, stainless steel, and high-strength alloys. Okuma’s proprietary OSP CNC control system offers intuitive programming, fast data processing, and advanced thermal compensation features that help maintain dimensional accuracy throughout production. The control system also integrates seamlessly with CAD/CAM software, allowing operators to optimize tool paths and reduce cycle times. A high-capacity turret system supports multiple tooling options, improving flexibility and reducing setup changes during complex turning operations.
The machine is widely used in automotive, aerospace, and general engineering industries for producing shafts, bushings, flanges, and other precision cylindrical components. Its combination of rigidity, spindle performance, and advanced control technology makes it suitable for both batch production and continuous manufacturing environments. Manufacturers choose the OKUMA LB3000 EX II for its reliability, high accuracy, and long-term operational stability, making it a dependable solution for high-precision turning applications in modern CNC machining facilities.
OKUMA LB3000 EX IISPECIFICATIONS
TRAVEL & CAPACITY
Max Turning Diameter: 410 mm (16.14 in)
Max Turning Length: Up to 1,000 mm (39.4 in) depending on bed length
Bar Capacity: 80 mm (3.15 in)
X-Axis Travel: 260 mm (10.2 in)
Z-Axis Travel: Up to 1,000 mm
Y-Axis Travel (MY): ±50 mm
SPINDLE
Spindle Nose: A2-6 or A2-8 (based on configuration)
Max Spindle Speed: 4,200 rpm (A2-6); 3,000 rpm (A2-8)
Spindle Motor Power: 22 kW (30 hp)
Spindle Bore: 91 mm (3.58 in)
Max Torque: ~350 Nm
TOOLING / TURRET
Turret Stations: 12
Tool Type: BMT or VDI (depending on model)
Live Tool Speed: Up to 6,000 rpm
Live Tool Motor: 7.1 kW (9.5 hp)
Sub-Spindle (MW): Available; 6,000 rpm max
FEEDRATES
Rapid Traverse (X/Z): 20 – 30 m/min
Y-Axis Traverse (MY): 10 m/min
C-Axis Indexing: 0.001° resolution (M/MY/MW)
COOLANT & CHIP MANAGEMENT
Coolant Pump: Standard flood
High-Pressure Coolant: Optional (up to 70 bar)
Chip Conveyor: Optional
Mist Collector and Automation Ready
CONTROL SYSTEM
Okuma OSP-P300L
Smart OSP suite with real-time diagnostics
Open-architecture interface and USB/Ethernet
Tool life monitoring, thermal compensation, load detection
POWER & AIR REQUIREMENTS
Power: ~30 – 40 kVA
Air: ~0.5 – 0.6 MPa (for chucking, tool clamping)
OKUMA LB3000 EX II – GENERAL INFORMATION
Model: Okuma LB3000 EX II
Machine Type: Horizontal CNC Turning Center
Structure: Box-way slant bed
Control: Okuma OSP-P300L
Configurations: 2-axis, M (live tooling), MY (live + Y-axis), MW (sub-spindle + Y-axis)
Application: High-precision turning and multi-operation machining
OKUMA LB3000 EX II – KEY CAPABILITIES
Heavy-duty cutting with excellent part finish
Live tooling and Y-axis for complex features
Sub-spindle for front-and-back machining
True box-way construction for stability
Integrated thermal deformation compensation
Supports automation like bar feeders and robots
INDUSTRIES THAT USE OKUMA LB3000 EX II
Automotive (suspension parts, flanges, hubs)
Aerospace (mounting rings, bushings, fittings)
Oil & Gas (pipe threads, valve components)
Medical (stainless precision parts, orthopedic components)
Heavy Equipment and Job Shops
TYPICAL PARTS OKUMA LB3000 EX II CAN PRODUCE
Rotors and hubs
Threaded connectors and couplings
Precision shafts and pins
Parts with off-center milling features
Multi-operation parts needing back-side machining
WHY CHOOSE THE OKUMA LB3000 EX II
Proven accuracy and reliability in 24/7 environments
Built-in thermal compensation for dimensional control
High-torque spindle ideal for tough materials
Modular configurations support expansion over time
Okuma OSP control offers fast response and intuitive use
Backed by strong global service network
Summary Table
PARAMETER
VALUE
Max Turning Diameter
410 mm (16.14 in)
Max Turning Length
Up to 1,000 mm (39.4 in)
Bar Capacity
80 mm (3.15 in)
Spindle Speed
Up to 4,200 rpm
Spindle Power
22 kW (30 hp)
Tool Stations
12
Live Tooling
Up to 6,000 rpm (M, MY, MW models)
Y-Axis Travel
±50 mm (MY/MW models)
Sub-Spindle
Available on MW models
Control
Okuma OSP-P300L
How much does used OKUMA LB3000 EX II cost? Used Machine Price Range (Approximate)
CONFIGURATION
ESTIMATED PRICE (USD)
Base Model (2-axis, manual tailstock)
$60,000 – $75,000
M / MY (live tooling + Y-axis)
$80,000 – $100,000
MW (Y-axis + sub-spindle + live tooling)
$100,000 – $125,000+
Prices vary depending on build year, spindle hours, tool count, and installed options.
