The Okuma MULTUS B550 is a large-capacity, high-performance multi-tasking CNC machine designed for machining large-diameter and long workpieces in a single setup. As one of the most powerful models in Okuma’s MULTUS B-series, it integrates turning, milling, drilling, and boring operations into one platform, significantly reducing setup time and improving overall productivity.
The machine features a 240° B-axis milling head and a high-torque milling spindle capable of speeds up to 5,000 rpm (optional higher speeds), enabling complex multi-axis machining. The main spindle supports speeds up to approximately 3,000 rpm and can handle a maximum turning diameter of around 830 mm with turning lengths up to 2,000–3,000 mm, making it ideal for heavy industries such as oil & gas, aerospace, and energy.
The MULTUS B550 includes an automatic tool changer with 40 tools (expandable up to 160), dual spindles (optional W configuration), and full Y-axis capability for complete part machining. Equipped with Okuma’s OSP-P500 control and Collision Avoidance System, the machine ensures ease of operation and reduced risk during complex machining.
Overall, the MULTUS B550 is designed for manufacturers requiring maximum capacity, flexibility, and precision in large-part multi-tasking applications.
OKUMA MULTUS B550SPECIFICATIONS
OKUMA MULTUS B550 – AXIS
Multi-Axis CNC Turn-Mill Center
X, Z, Y Linear Axes
B-Axis (tilting milling spindle head – 240° range)
C-Axis (main and sub-spindle contouring)
Optional W-Axis (sub-spindle movement)
Up to 7-axis configuration depending on setup
OKUMA MULTUS B550 – AXIS TRAVELS
X-Axis Travel: Approx. 700–800 mm
Y-Axis Travel: Approx. ±200 mm (traveling column design)
Chip Conveyor: Standard/Optional depending on config
Efficient chip evacuation for large part machining
OKUMA MULTUS B550 – CONTROL SYSTEM
Control: Okuma OSP-P500S
Programming: IGF conversational + G-code
Collision Avoidance System (CAS)
Designed specifically for multitasking machines
OKUMA MULTUS B550 – POWER & AIR REQUIREMENTS
Power Requirement: Approx. 50–70 kVA
Voltage: 200–400V (region dependent)
Air Requirement: Clean compressed air
Air Pressure: Approx. 5–6 bar
OKUMA MULTUS B550 – DIMENSIONS
Machine Length: Approx. 8,000–9,100 mm
Machine Width: Approx. 3,200 mm
Machine Height: Approx. 3,300 mm
Machine Weight: Approx. 18,000–25,000 kg
OKUMA MULTUS B550 – GENERAL INFORMATION
Machine Type: CNC Multi-Tasking Turn-Mill Center
Manufacturer: Okuma
Designed for large, complex part machining
Combines turning, milling, and drilling in one setup
High rigidity and power for heavy-duty applications
INDUSTRIES THAT USE OKUMA MULTUS B550
Aerospace
Oil & Gas
Energy & Power Generation
Heavy Equipment
Shipbuilding
TYPICAL PARTS OKUMA MULTUS B550 CAN PRODUCE
Large shafts
Turbine components
Oilfield parts
Heavy flanges
Long cylindrical components
Complex multi-process parts
WHY CHOOSE OKUMA MULTUS B550
Designed for large-diameter and long workpieces
Complete machining in a single setup
Powerful spindle and milling capabilities
High tool capacity for complex jobs
Excellent rigidity and thermal stability
Ideal for heavy-duty, high-precision production
WHY BUY USED OKUMA MULTUS B550
Buying a used Okuma MULTUS B550 is a strategic investment for manufacturers that need high-capacity, multi-tasking machining without the cost of a new machine. These machines are engineered with heavy-duty construction, high-torque spindles, and advanced thermal stability systems, allowing them to maintain precision even after extended use in demanding environments.
A key factor when evaluating a used MULTUS B550 is cutting time (spindle hours). Machines with low cutting hours—typically under 5,000–7,000 hours—are considered lightly used and can perform close to new condition. Units with moderate usage (7,000–18,000 hours) remain highly reliable for most production environments if properly maintained. Machines exceeding 18,000–25,000 hours may require servicing of major components such as the B-axis head, milling spindle, or axis drives, but they can still offer strong value for less intensive applications.
One of the biggest advantages of the MULTUS B550 is its ability to complete complex parts in a single setup. Even older machines retain features such as dual spindles, large tool capacity, and B-axis milling, enabling full process integration and reduced labor costs.
Additionally, Okuma’s strong reputation for durability and long service life reduces the risks associated with buying used equipment. For shops handling large, complex parts, a used MULTUS B550 offers exceptional capability at a significantly reduced investment.
HOW MUCH DOES A USED OKUMA MULTUS B550COST?
The cost of a used Okuma MULTUS B550 varies significantly based on manufacturing year, configuration, condition, and especially cutting time. As a high-end, large-capacity multi-tasking machine, it commands higher prices compared to smaller MULTUS models.
For early-generation machines (2010–2014), prices typically range from $150,000 to $250,000. These machines often have higher cutting hours (15,000–30,000+) and may require refurbishment or component replacement, but they still provide full multi-tasking capability for large components.
Machines built between 2015 and 2020 generally fall in the $250,000 to $400,000 range. These represent the most active used market segment and usually include moderate cutting hours (7,000–18,000), along with updated controls and improved automation compatibility.
For newer machines from 2020 to 2025, prices can range from $400,000 to $700,000 or more depending on configuration, tooling packages, and automation systems. These machines typically have low cutting hours (under 5,000) and are close to new condition.
Cutting time is one of the most critical pricing factors—machines with lower spindle hours command significantly higher values regardless of age. Buyers should also evaluate features such as sub-spindle configuration, tool capacity, and automation integration to determine the true overall investment and long-term return.
