Okuma MU-5000V LL
Key Specifications
Max Spindle
Spindle Taper
Tool Capacity
Table Size
Rapid Traverse
Spindle Power
Overview
The Okuma MU-5000V LL is a vertical 5-axis machining center using a trunnion-style tilting rotary table (A/C or B/C axes) to provide full 5-axis simultaneous machining capability within a compact vertical machine layout. The 'LL' designation indicates an extended longitudinal table configuration, providing a larger fixturing footprint than the standard MU-5000V while retaining the trunnion design's advantages of simple workpiece access and high-accuracy rotary motion.
The MU-5000V LL accepts workpieces up to 650 mm diameter and 350 mm tall on the trunnion table, with a maximum payload of 300 kg. The 15,000 RPM No. 40 spindle delivers 18.5/15 kW of power appropriate for aluminum aerospace work, medical implant machining, and precision mold production where 5-sided or full 5-axis simultaneous paths eliminate multiple setups. The trunnion configuration provides inherent accuracy advantages over head-tilting (swivel-head) designs because the rotary motion occurs close to the workpiece, minimizing lever-arm positioning error.
Okuma's MU-series 5-axis machines incorporate the full suite of OSP intelligent technologies: Thermo-Friendly Concept for thermal stability, Anti-Crash System for collision prevention during complex 5-axis program verification, Machining Navi for chatter detection and correction, and 5-axis Auto-Tuning for rotary axis calibration. The OSP-P500M control handles simultaneous 5-axis interpolation with NURBS surface interpolation support for smooth aerospace and medical surface programs generated by premium CAM systems.
The MU-5000V LL competes with the Mazak Variaxis i-500T, DMG Mori DMU 50, Makino D200Z, and Hermle C 400 in the vertical trunnion 5-axis class. New MU-5000V LL machines typically price between $400,000 and $600,000 depending on options and automation. Specs sourced from Okuma Corporation published data.
Full Specifications
| Parameter | Value |
|---|---|
| Max Workpiece Diameter | ø650 mm (ø25.6 in) |
| Max Workpiece Height | 350 mm (13.8 in) |
| Max Table Load | 300 kg (661 lb) |
| X Y Z Travel | 730 x 550 x 460 mm (28.7 x 21.7 x 18.1 in) |
| Rotary Axes | A-axis: ±120°; C-axis: 360° (continuous) |
| Max Spindle Speed | min⁻¹ |
| Spindle Taper | No. 40 (BT40 / CAT40) |
| Spindle Motor Power | kW |
| Tool Capacity | 40 tools (standard); 80 tools (optional) |
| Rapid Traverse Rate | 50 |
| CNC Control | Okuma OSP-P500M |
| Thermo Friendly Concept | Standard |
| Anti Crash System | Standard |
| Machining Navi | Standard |
| Max Machining Volume | Ø700 x 500 |
| Table Size | Ø500 |
| Okuma Global Repair Center | Charlotte, North Carolina |
| Inches | Metric |
| Spindle Speed | 10,000 |
| Spindle Motor Power | 11/7.5 |
| Magazine Capacity | 32 [48, 64, matrix] |
Specifications sourced from okuma.com — verified 2026-03-28
Strengths & Limitations
Strengths
- Trunnion table design positions rotary motion close to the workpiece, minimizing lever-arm error and providing higher absolute 5-axis positioning accuracy than swivel-head alternatives
- Anti-Crash System and Machining Navi provide critical protection during complex 5-axis programs, reducing costly crashes and chatter-related scrap
- 15,000 RPM spindle with NURBS interpolation support enables smooth surface finishing for aerospace and medical parts directly from premium CAM output
- Full Okuma intelligent technology suite (Thermo-Friendly, 5-axis Auto-Tuning) maintains accuracy and rotary axis calibration across production shifts
Limitations
- Trunnion table limits workpiece height to 350 mm — tall parts that would exceed the trunnion envelope require a different machine configuration or reduced table elevation
- 300 kg table load capacity is limiting for heavier workpieces common in steel aerospace and heavy equipment work at this table size
- No. 40 taper with 18.5 kW constrains aggressive roughing in hard metals; shops machining titanium or Inconel at high material removal rates may need the MU-8000V with No. 50 taper
Best For
Frequently Asked Questions
01
The 'LL' (Long Longitudinal) version of the MU-5000V provides an extended table layout that accommodates larger fixturing footprints and longer workpieces in the Y direction compared to the standard MU-5000V. The trunnion rotary axes, spindle specifications, and OSP control are common to both variants. The LL is preferred when workpiece length or complex fixture arrangements exceed the standard table's footprint.
02
5-axis Auto-Tuning is an Okuma cycle that automatically measures the geometric relationship between the rotary axes (A and C) and the linear axes using a probing routine. The measurement data updates machine compensation parameters to correct for any geometric deviations that accumulate from thermal effects, wear, or after maintenance. Running the tuning cycle periodically — typically monthly or after major temperature changes — maintains 5-axis positioning accuracy without manual calibration.
03
Yes, the MU-5000V LL machines titanium effectively. The 15,000 RPM spindle is de-rated for titanium work, with optimum cutting speeds typically in the 3,000–6,000 RPM range depending on tool diameter. Through-spindle coolant at high pressure (optional) is strongly recommended for titanium to clear chips and control heat at the cutting edge. The trunnion table's rigidity under the workpiece provides better stability for titanium roughing than swivel-head alternatives.
04
All major 5-axis CAM systems support the MU-5000V LL via Okuma OSP post processors: Hypermill, Mastercam, NX CAM, Catia, and Siemens NX are common in aerospace and medical production shops. Hypermill is particularly popular for Okuma 5-axis machines due to mature post processor support and solid aerospace surface strategies. Okuma also provides its own CAM-style conversational programming for simpler 5-axis parts directly at the OSP-P500M control.
05
Okuma offers the Armroid (internal robot) option for the MU series — a robot arm mounted inside the machine enclosure that handles part loading and in-process gauging without an external robot. For larger automation cells, the MU-5000V LL integrates with external 6-axis robots (Fanuc, KUKA, YASKAWA), gantry loaders, and pallet systems. The machine's OSP control supports standard automation interface protocols for cell integration.
Videos
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