OKUMA LB4000 EX II HORIZONTAL MACHINING CENTER

Technical Description

The OKUMA LB4000 EX II is a high-performance horizontal machining center designed for precision and versatility in demanding turning applications. Featuring a single main spindle with a maximum chuck diameter of 15.000", this machine delivers robust power and accuracy for a wide range of workpieces. The main spindle operates at speeds up to 4,200 RPM, supported by a 40 HP motor, ensuring efficient material removal and high-speed cutting capabilities. Engineered with a slanted box bed and advanced thermal design, the LB4000 EX II maintains dimensional stability and minimizes thermal growth, resulting in consistent machining accuracy over extended production cycles. The machine supports a maximum turning diameter of 18.90" and a turning length of up to 84.65", accommodating large and complex parts. Rapid traverse rates of 984 ipm on the X-axis and 1,181 ipm on the Z-axis enhance productivity by reducing non-cutting time. The spindle nose type is JIS A2-8, and the system is compatible with various bar capacities and optional configurations, including live tooling and Y-axis for multitasking operations. With a 12-position turret and a maximum of one simultaneous cutting tool, the LB4000 EX II is optimized for efficient, high-precision turning tasks. The machine is equipped with Okuma’s OSP control system, providing user-friendly operation and seamless integration with peripheral equipment. Its rigid construction, combined with advanced control technology, makes the LB4000 EX II a reliable solution for heavy-duty and high-speed machining requirements in modern manufacturing environments.