USED OKUMA MULTUS B250II 1SW/750

The OKUMA MULTUS B250II 1SW/750 is a high-performance CNC multitasking machine designed to combine turning, milling, drilling, tapping, boring, and complex multi-axis machining operations in a single platform. Manufactured by Okuma, the MULTUS B250II series is designed to reduce setup time by allowing manufacturers to complete multiple operations without repeatedly transferring components between separate CNC machines.

The B250II provides a substantial working envelope with a maximum turning diameter of approximately 23.62 inches (600 mm) and a maximum machining length of approximately 750 mm (29.53 inches). The machine is designed around an 8-inch chuck class and can be configured with a B-axis milling spindle, Y-axis movement, C-axis contouring, live tooling, and a sub-spindle. Okuma describes the B250II as a multitasking machine combining turning-center and machining-center capabilities in one machine.

The 1SW/750 configuration is particularly attractive because it combines the B250II platform with a sub-spindle and approximately 750 mm of working length. Documented used examples include an 8-inch main chuck, 6-inch sub-spindle, 5,000 RPM main spindle, 6,000 RPM sub-spindle, Y-axis and C-axis live tooling, 60-tool automatic tool storage, and an Okuma OSP control. Exact equipment can vary according to machine year and options.

This machine is suitable for aerospace, automotive, medical, energy, oil and gas, industrial machinery, defense, precision engineering, and general contract manufacturing. Its ability to perform turning and milling operations in one setup makes it especially useful for complex parts requiring high positional accuracy.

OKUMA MULTUS B250II 1SW/750 – AXIS

The B250II uses a B-axis milling head with a wide angular range and Y-axis movement, allowing complex milling operations to be performed without removing the component from the turning setup.

OKUMA MULTUS B250II 1SW/750 – AXIS TRAVELS / WORK ENVELOPE

Okuma lists a maximum machining diameter of 600 mm and maximum work length of 750 mm for the B250II. A documented 1SW/750 machine provides approximately 500 mm X travel and 800 mm Z travel.

OKUMA MULTUS B250II 1SW/750 – MAIN SPINDLE

Okuma lists a 5,000 RPM maximum spindle speed and 22/15 kW motor rating for the B250II platform. Used 1SW/750 machines have also been documented with 30/20 HP main-spindle configurations.

OKUMA MULTUS B250II 1SW/750 – SUB SPINDLE

The 1SW configuration incorporates a sub-spindle, allowing the workpiece to be transferred between the main and secondary spindle for complete machining of multiple faces. A documented 1SW/750 configuration uses a 6-inch, 6,000 RPM sub-spindle.

OKUMA MULTUS B250II 1SW/750 – MILLING SPINDLE

The B250II combines turning and milling in a single machine. Okuma specifies a 225° B-axis range, a 12,000 RPM H1 milling spindle with an optional 20,000 RPM configuration, and Capto C6 tooling.

OKUMA MULTUS B250II 1SW/750 – TOOL CHANGER

The B250II is available with 20, 40, or 60 tools depending on configuration. Specific 1SW/750 machines have been listed with a 60-tool automatic tool changer and automatic tool presetting.

OKUMA MULTUS B250II 1SW/750 – FEEDRATES

Okuma lists rapid traverse rates of approximately 40 m/min for X and Z and 26 m/min for Y for the B250II platform.

OKUMA MULTUS B250II 1SW/750 – CONTROL SYSTEM

The MULTUS BII series incorporates Okuma’s OSP control platform and Collision Avoidance System. More recent B250II machines use OSP-P500, while documented 2022–2023 1SW/750 machines use OSP-P300SA-H.

OKUMA MULTUS B250II 1SW/750 – COOLANT / CHIP MANAGEMENT

Documented 1SW/750 machines have been equipped with chip conveyors, while coolant and chip-management equipment can vary depending on the individual machine configuration.

OKUMA MULTUS B250II 1SW/750 – MACHINE SIZE

Okuma’s published B250II dimensions are approximately 3,620 × 2,210 × 2,582 mm, although installed accessories such as chip conveyors, bar feeders, robots, and other automation can increase the required footprint.

OKUMA MULTUS B250II 1SW/750 – GENERAL INFORMATION

These specifications combine Okuma’s published B250II specifications with documented 1SW/750 machine configurations. Exact specifications should be verified against the machine serial number and build sheet.

INDUSTRIES THAT USE OKUMA MULTUS B250II 1SW/750

The OKUMA MULTUS B250II 1SW/750 is suitable for aerospace, automotive, medical, defense, energy, oil and gas, industrial machinery, robotics, precision engineering, and general contract manufacturing.

Its multitasking design is particularly valuable for manufacturers producing complex components that require turning, milling, drilling, tapping, and contouring operations.

TYPICAL PARTS OKUMA MULTUS B250II 1SW/750 CAN PRODUCE

The machine can produce shafts, flanges, housings, valve components, aerospace components, hydraulic parts, automotive components, medical components, pump parts, precision fittings, and other complex turned-and-milled components.

Typical operations include turning, facing, boring, threading, drilling, tapping, milling, contouring, slotting, keyway machining, cross-hole drilling, and complex B-axis interpolation.

The sub-spindle allows additional operations to be performed on the opposite end of a component without removing it from the machine.

WHY CHOOSE OKUMA MULTUS B250II 1SW/750

The biggest advantage of the OKUMA MULTUS B250II 1SW/750 is its ability to consolidate multiple manufacturing processes into one machine. Instead of moving a component from a CNC lathe to a machining center and then to another machine for secondary operations, the MULTUS can perform many of these operations in one setup.

The B250II provides up to 600 mm turning diameter and 750 mm work length, along with B-axis milling, Y-axis movement, C-axis turning, live tooling, and sub-spindle capability.

This can reduce setup time, work-in-process inventory, manual handling, and opportunities for errors between machining operations.

WHY BUY USED OKUMA MULTUS B250II 1SW/750

Buying a used OKUMA MULTUS B250II 1SW/750 can provide access to sophisticated multitasking capability at a significantly lower investment than purchasing comparable new equipment.

The machine’s ability to combine turning and milling is especially valuable for shops producing complex, high-value components. The B-axis milling head, Y-axis, C-axis, live tooling, and sub-spindle can allow complete or near-complete machining in a single setup.

The 1SW/750 configuration is particularly attractive for manufacturers that need both approximately 750 mm of machining length and secondary spindle operations.

Used-market examples demonstrate the range of configurations available. Recent 1SW/750 machines have been offered with 60-tool ATCs, 6-inch sub-spindles, 5,000 RPM main spindles, Y-axis live tooling, chip conveyors, probing, and even ARMROID robotic automation.

Before purchasing a used machine, inspect the main spindle, sub-spindle, B-axis head, Y-axis, ballscrews, linear guides, C-axis, tool changer, live tooling, control, coolant system, chip conveyor, and machine geometry.

HOW MUCH DOES A USED OKUMA MULTUS B250II 1SW/750 COST?

The price of a used OKUMA MULTUS B250II 1SW/750 varies substantially according to year, spindle hours, cutting hours, control generation, B-axis condition, sub-spindle configuration, tool capacity, automation, tooling, probing, and overall machine condition.

Recent market examples show that late-model machines can command substantial prices. A 2022 B250II-1SW/750 with an ARMROID robot was publicly listed at $349,500 USD, while current used listings for 2022 and 2023 machines are advertised at prices above $100,001 USD. These are late-model examples and should not be treated as direct pricing for every used B250II.

For used-equipment listing purposes, a reasonable estimated range for a used OKUMA MULTUS B250II 1SW/750 is approximately $80,000 to $350,000+ USD, depending heavily on age, hours, configuration, automation, tooling, and condition. Older standard machines without robotics or extensive options may fall toward the lower portion of this range, while newer machines with low hours, 60-tool ATC, ARMROID automation, probing, sub-spindle, and advanced control packages can command substantially more.

The machine should be evaluated under power before purchase. Buyers should verify spindle condition, B-axis accuracy, Y-axis movement, sub-spindle synchronization, tool changer operation, live tooling, control functionality, thermal stability, coolant delivery, chip management, service history, and included tooling before determining the final market value.