Intelligent Multitasking Machines MULTUS U series
Flexible machining from all directions
  • Tough cutting in entire Y-axis range
    With the ideal, large work envelope for lots of milling of complex parts. The class best Y-axis travel is fully utilized with a highly rigid traveling column, for powerful cutting along the entire Y axis.
    Y軸全域で強靭な削り
    DBC 1500 illustration
    ( ) figures for the MULTUS U4000/U5000
  • Wide B-axis swing: 240°
    The wide 240-degree swing of the B axis spindle allows it to have equivalent machining areas for both the main and opposing spindle. With the NC-B axis, roller gears are used to achieve “0” backlash during B-axis drive, and highly accurate 5-axis machining.
    広いB軸旋回範囲 240°
Superb C-axis positioning accuracy: 0.0001°control
As an option*, a highly accurate C-axis function is used for both the main and opposing spindles. This will support end-users requiring very accurate machining of component shapes that are quite complex.
Moreover, heavy-duty milling, with a solid retention mechanism, makes possible applications that require both high accuracy and high efficiency.

* Standard in certain markets.

Maximum milling or turning performance
Achieving highly efficient cutting of difficult-to-machine materials
  • End milling
    604cm3/min(S45C)
    ø20-mm end mill 7-flute
    Cutting Speed:
    192m/min
    Cutting depth:
    6.5×20mm
    Feed rate:
    1.52mm/rev

    (MULTUS U3000)

  • OD Turning
    5.0mm2(S45C)
    Cutting Speed:
    150m/min
    Cutting depth:
    8mm
    Feed rate:
    0.625mm/rev

    (MULTUS U4000 big bore ø160)

難削材の高能率加工も可能な高い加工能力

Note: The “actual data” referred to above represent examples, and may not be obtained due to differences in specifications, environmental conditions during measurement, tooling, cutting, and other conditions.

An array of extended specs to match user workpiece applications
Selections designed to match user workpiece applications

29 diverse variations in all

An assortment of variations are available for every possible requirement. You can choose the right solution that matches your application needs.

全29種類の多彩なバリエーション
Achieves process-intensive machining beyond
the framework of multitasking machines
Sloped axis turning
Turn-Cut
Turn-Cut is an original Okuma technology that enables turning on a milling spindle. The circular turning of the feed shaft and the spindle indexing angle are simultaneously controlled so that the tool edge is always facing the center of the milling spindle circular turning.
Sloped axis turning can be done by sloping the B axis. Moreover, machining of any diameter can be done with a single tool. Inside and outside diameter machining that is larger than the maximum tool diameter can be done. In setting cutting conditions, the Turn-Cut Guide (Optional) advises the best turning speed when the diameter and roundness of the machining area are designated.
  • Sloped axis turning Turn-Cut
  • Sloped axis turning Turn-Cut

Turning can be done on a sloped axis

High accuracy gear cutting with a multitasking machine
Gear Machining Package (Optional)
Gear cutting that previously required complex programming can now be done with ease. With easy programming, simply input the tool type, gear data, and cutting conditions to achieve highly accurate machining, reducing programming time to about one-tenth that of manual input. Process-intensive machining is achieved, including the gear cutting that used to be done on expensive special-purpose machines.
  • Skiving (OD/ID splines)
    Skiving (OD/ID splines)
  • Hobbing
    Hobbing
  • Input screen
    Input screen

Click here for details on the
Gear Machining Package

Machine Specifications

Item MULTUS U3000
1SC 1SW 2SC 2SW
1000 1500 1000 1500 1000 1500 1000 1500
Capacity Swing over saddle mm (in.) ø650 (25.59) Upper: ø650 (25.59), Lower: ø320 (12.60)
Distance between centers mm (in.) 1,000 (39.37) 1,500 (59.06) 1,000 (39.37) 1,500 (59.06) 1,000 (39.37) 1,500 (59.06) 1,000 (39.37) 1,500 (59.06)
Max machining dia mm (in.) ø650 (25.59) Upper: ø650 (25.59)*1, Lower: ø320 (12.60)
Max machining length mm (in.) 1,000 (39.37) 1,500 (59.06) 1,000 (39.37) 1,500 (59.06) 1,000 (39.37) 1,500 (59.06) 1,000 (39.37) 1,500 (59.06)
Travels X axis mm (in.) 645 (25.39) Upper: 645 (25.39), Lower: 235 (9.25)
Z axis Upper: mm (in.) 1,100 (43.31) 1,600 (62.99) 1,100 (43.31) 1,600 (62.99) 1,100 (43.31) 1,600 (62.99) 1,100 (43.31) 1,600 (62.99)
Lower: mm (in.) - 961 (37.83) 1,461 (57.52) 1,100 (43.31) 1,584 (62.36)
Y axis mm (in.) 250 (9.84) (±125 (4.92))
W axis mm (in.) - 1,325 (52.17) 1,594 (62.76) - 1,100 (43.31) 1,584 (62.36)
B-axis / indexing angle degree -30 to 210 (min controlled angle 0.001)
C-axis / indexing angle degree 360 (min controlled angle 0.0001)
Spindle Spindle speed min-1 50 to 5,000
Spindle speed ranges 2 auto ranges (2-speed motor coil switching)
Spindle nose shape JIS A2-6
Taper bore mm (in.) ø80 (3.15)
Bearing dia mm (in.) ø120 (4.72)
Opposing spindle *2 Spindle speed min-1 − 50 to 5,000 − 38 to 5,000
Spindle speed ranges   − 2 auto ranges (2-speed motor coil switching) − 2 auto ranges (2-speed motor coil switching)
Spindle nose shape   − JIS A2-6 − JIS A2-6
Taper bore mm (in.) − ø80 (3.15) − ø62 (2.44)
Bearing dia mm (in.) − ø120 (4.72) − ø100 (3.94)
Turret
(tool spindle)		 Type   H1 Upper: H1, Lower: V12
No. of tools L / M: 1 Upper: L / M: 1, Lower: 12
Tool shank dimensions mm (in.) □25(1 × 1)
ID tool shank diameter mm (in.) ø40 (1.57)
Milling tool spindle min-1 50 to 12,000
Milling tool spindle speed ranges 2 auto ranges (2-speed motor coil switching)
Feedrates Feedrates
X, Z, Y axes		 Upper: m/min X：50, Z：50, Y：40
lower: m/min − X: 25, Z: 40
Feedrates W-axis m/min 20
(tailstock)		 12
(tailstock)		 30 20
(tailstock)		 12
(tailstock)		 30
Feedrates C, B axis min-1 C: 200, B: 30
Cutting feedrate mm/rev 0.001 to 1,000.000
Tailstock Tapered bore MT. No.5
(revolving center)		 - MT. No.5
(revolving center)		 -
Quill travel mm (in.) 1,186
(46.69)		 1,594
(62.76)		 - 961
(37.83)		 1,359.5
(53.52)		 -
ATC Tool shank HSK-A63
No. of tools tools 40
Max tool dia mm (in.) ø90 (3.54) (w/o adjacent tools: ø130 (5.12))
Max tool length mm (in.) 400 (15.75) (from gauge line)
Max tool weight kg (lb) 10 (22)
Motor Main spindle motor kW (hp) 22/15 (30/20) (30 min/cont)
Opposing spindle motor kW (hp) − 22/15 (30/20)
(30 min/cont)		 − 22/15 (30/20)
(20 min/cont)
Milling tool spindle motor kW(hp) 22/15/11 (30/20/15)
(3 min/15 min/cont)		 22/15/11 (30/20/15)
(3 min/15 min/cont)
X, Z, Y, B axis motor kW(hp) X: 5.2, Z: 4.6, Y: 3.5, B: 3.0
(X: 6.9, Z: 6.1, Y: 4.7, B: 4.0)		 XA: 5.2, XB: 3.5, ZA:4.6, ZB: 3.5
(XA: 6.9, XB: 4.7, ZA:6.1, ZB: 4.7)(DBC 1,000)
/4.6 (6.1) (DBC 1,500), Y: 3.5, B: 3.0
(Y: 4.7, B: 4.0)
W-axis motor kW(hp) 2.8 (3.7) (tailstock) 3.5 (4.7) 4.6 (6.1) 2.8 (3.7) (tailstock) 3.5 (4.7) 4.6 (6.1)
Coolant motor (50Hz/60Hz) kW(hp) 0.25/0.25 (0.33/0.33) × 1 , 0.55/0.75(0.73/1) × 3
Machine size Height mm (in.) 2,955 (116.34) 3,030 (119.29)
Floor space
W × D
(tank included)		 mm × mm (in.) DBC 1,000: 4,925 × 2,995
(193.90 × 117.91)
DBC 1,500: 5,425 × 2,995
(213.58 × 117.91)		 DBC 1,000: 4,925 × 3,018
(193.90 × 118.82)
DBC 1,500: 5,425 × 3,082
(213.58 × 121.34)
Weight kg(lb) DBC 1,000: 15,500 (34,100)
DBC 1,500: 16,500 (36,300)		 DBC 1,000: 16,500 (36,300)
DBC 1,500: 17,500 (38,500)
CNC OSP-P300SA

*1.ø320 (swing over lower turret) during shaft work and when machining with opposing spindles.
*2.The opposing spindle capacity and working range near the opposing spindle differ with 1SW and 2SW specifications.

Item MULTUS U4000
1SC 1SW 2SC 2SW
1500 2000 1500 2000 1500 2000 1500 2000
Capacity Swing over saddle mm (in.) ø650 (25.59) Upper: ø650 (25.59), Lower: ø320 (12.60)
Distance between centers mm (in.) 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)
Max machining dia mm (in.) ø650 (25.59) Upper: ø650 (25.59)*1, Lower: ø320 (12.60)
Max machining length mm (in.) 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)
Travels X axis mm (in.) 695 (27.36) Upper: 695 (27.36), Lower: 235 (9.25)
Z axis upper: mm (in.) 1,600
(62.99)		 2,100
(82.68)		 1,600
(62.99)		 2,100
(82.68)		 1,600
(62.99)		 2,100
(82.68)		 1,600
(62.99)		 2,100
(82.68)
lower: mm (in.) - 1,461
(57.52)		 1,961
(72.20)		 1,524*2
(60.00)		 2,045*3
(80.51)
Y axis mm (in.) 300 (11.81) (±150 (5.91))
W axis mm (in.) - 1,554
(61.18)		 2,054
(80.87)		 - 1,524*2
(60.00)		 2,024*3
(79.69)
B-axis / indexing angle degree −30 to +210 (min controlled angle 0.001)
C-axis / indexing angle degree 360 (min controlled angle 0.0001)
Spindle Spindle speed min-1 45 to 4,200
Spindle speed ranges 2 auto ranges (2-speed motor coil switching)
Spindle nose shape JIS A2-8
Taper bore mm (in.) ø91 (3.58)
Bearing dia mm (in.) ø140 (5.51)
Opposing spindle*4 Spindle speed min-1 − 45 to 4,200 − 38 to 3,800
Spindle speed ranges   − 2 auto ranges
(2-speed motor coil switching)		 − 2 auto ranges
(2-speed motor coil switching)
Spindle nose shape   − JIS A2-8 − JIS A2-8
Taper bore mm (in.) − ø91 (3.58) − ø80 (3.15)
Bearing dia mm (in.) − ø140 (5.51) − ø120 (4.72)
Turret
(tool spindle)		 Type   H1 H1, Lower: V12 Upper: H1, Lower: V12
No. of tools L / M: 1 Upper: L / M: 1, Lower: 12
Tool shank dimensions mm (in.) □25 (1 × 1)
ID tool shank diameter mm (in.) ø40 (1.57)
Milling tool spindle min-1 50 to 12,000
Milling tool spindle speed ranges 2 auto ranges (2-speed motor coil switching)
Feedrates Feedrates
X, Z, Y axes		 upper: m/min X: 50, Z: 50,Y: 40 X: 50, Z: 40,Y: 40 X: 50, Z: 50,Y: 40 X: 50, Z: 40,Y: 40 X: 50, Z: 50,Y: 40 X: 50, Z: 40,Y: 40 X: 50, Z: 50,Y: 40 X: 50, Z: 40,Y: 40
lower: m/min − X: 25, Z: 40 X: 25, Z: 30 X: 25, Z: 40 X: 25, Z: 30
Feedrates W-axis m/min 12
(tailstock)		 30 20 12
(tailstock)		 30 20
Feedrates C, B axis min-1 C: 200, B: 30
Cutting feedrate mm/rev 0.001 to 1,000.000
Tailstock Tapered bore MT. No.5
(revolving center)		 - MT. No.5
(revolving center)		 -
Quill travel mm (in.) 1,594
(62.76)		 2,094
(82.44)		 - 1,359.5
(53.52)		 1,961
(77.20)		 -
ATC Tool shank HSK-A63
No. of tools tools 40
Max tool dia mm (in.) ø90 (3.54) (w/o adjacent tools: ø130 (5.12))
Max tool length mm (in.) 400 (15.75) (from gauge line)
Max tool weight kg (lb) 10 (22)
Motor Main spindle motor kW (hp) 22/15 (30/20) (30 min/cont)
Opposing spindle motor kW (hp) − 22/15 (30/20)
(30 min/cont)		 − 22/15 (30/20)
(20 min/cont)
Milling tool spindle motor kW (hp) 22/15/11 (30/20/15)
(3 min/15 min/cont)		 22/15/11 (30/20/15)
(3 min/15 min/cont)
X, Z, Y, B axis motor kW (hp) X: 5.2, Z: 4.6 (X: 6.9, Z: 6.1) (DBC 1,500)/
5.2 (6.9) (DBC 2,000),Y: 3.5 (4.7), B: 3.0 (4.0)		 XA: 5.2, XB: 3.5, ZA:4.6
(XA: 6.9, XB: 4.7, ZA:6.1) (DBC 1,500),
5.2 (6.9) (DBC 2,000), ZB: 4.6, Y: 3.5, B: 3.0
(ZB: 6.1, Y: 4.7, B: 4.0)
W-axis motor kW (hp) 2.8 (3.7) (tailstock) 4.6 (6.1) 2.8 (3.7) (tailstock) 4.6 (6.1)
Coolant motor (50Hz/60Hz) kW (hp) 0.25/0.25 (0.33/0.33) × 1 , 0.55/0.75(0.73/1) × 3
Machine size Height mm (in.) 2,955 (116.34) 3,030 (119.29)
Floor space
W × D
(tank included)		 mm × mm (in.) DBC 1,500: 5,425 × 2,995
(213.58 × 117.91)
DBC 2,000: 6,175 × 2,995
(243.11 × 117.91)		 DBC 1,500: 5,425 × 3,082
(213.58 × 385.25)
DBC 2,000: 6,175 × 3,082
(243.11 × 121.34)
Weight kg (lb) DBC 1,500: 17,000 (37,400)
DBC 2,000: 19,000 (41,800)		 DBC 1,500: 18,000 (39,600)
DBC 2,000: 20,000 (44,000)
CNC OSP-P300SA

*1.ø320 (swing over lower turret) during shaft work and when machining with opposing spindles.
*2.In the main Big-Bore spindle, it will be 1,500.
*3.In the main Big-Bore spindle, it will be 2,000.
*4.The opposing spindle capacity and working range near the opposing spindle differ with 1SW and 2SW specifications.

Item MULTUS U5000
1SC 1SW 2SC 2SW
1500 2000 1500 2000 1500 2000 1500 2000
Capacity Swing over saddle mm (in.) ø650 (25.59) Upper: ø650 (25.59), Lower: ø320 (12.60)
Distance between centers mm (in.) 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)
Max machining dia mm (in.) ø650 (25.59) Upper: ø650 (25.59)*1, Lower: ø320 (12.60)
Max machining length mm (in.) 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)		 1,500
(59.06)		 2,000
(78.74)
Travels X axis mm (in.) 695 (27.36) Upper: 695 (27.36), Lower: 235 (9.25)
Z axis upper:mm (in.) 1,600
(62.99)		 2,100
(82.68)		 1,600
(62.99)		 2,100
(82.68)		 1,600
(62.99)		 2,100
(82.68)		 1,600
(62.99)		 2,100
(82.68)
lower:mm (in.) - 1,461
(57.52)		 1,961
(72.20)		 1,524
(60.00)		 2,024
(79.69)
Y axis mm (in.) 300 (11.81) (±150 (5.91))
W axis mm (in.) - 1,554
(61.18)		 2,054
(80.87)		 - 1,500
(59.06)		 2,000
(78.74)
B-axis / indexing angle degree -30 to +210 (min controlled angle 0.001)
C-axis / indexing angle degree 360 (min controlled angle 0.0001)
Spindle Spindle speed min-1 30 to 3,000
Spindle speed ranges 2 auto ranges (2-speed motor coil switching)
Spindle nose shape JIS A2-11
Taper bore mm (in.) ø112 (4.41)
Bearing dia mm (in.) ø160 (6.30)
Opposing spindle*2 Spindle speed min-1 − 30 to 3,000 − 38 to 3,800
Spindle speed ranges   − 2 auto ranges
(2-speed motor coil switching)		 − 2 auto ranges
(2-speed motor coil switching)
Spindle nose shape   − JIS A2-11 − JIS A2-8
Taper bore mm (in.) − ø112 (4.41) − ø80 (3.15)
Bearing dia mm (in.) − ø160 (6.30) − ø120 (4.72)
Turret
(tool spindle)		 Type   H1 H1, Lower: V12
No. of tools L / M: 1 Upper: L / M: 1, Lower: 12
Tool shank dimensions mm (in.) □25 (1 × 1)
ID tool shank diameter mm (in.) ø40 (1.57)
Milling tool spindle min-1 50 to 12,000
Milling tool spindle speed ranges 2 auto ranges (2-speed motor coil switching)
Feedrates Feedrates
X, Z, Y axes		 upper: m/min X: 50, Z: 50, Y: 40 X: 50, Z: 40, Y: 40 X: 50, Z: 50, Y: 40 X: 50, Z: 40, Y: 40 X: 50, Z: 50, Y: 40 X: 50, Z: 40, Y: 40 X: 50, Z: 50, Y: 40 X: 50, Z: 40, Y: 40
lower: m/min − X: 25, Z: 40 X: 25, Z: 30 X: 25, Z: 40 X: 25, Z: 30
Feedrates W-axis m/min 8 (tailstock) 30 20 8 (tailstock) 30 20
Feedrates C, B axis min-1 C: 200, B: 30
Cutting feedrate mm/rev 0.001 to 1,000.000
Tailstock Tapered bore MT. No.5 (Built-in) - MT. No.5 (Built-in) -
Quill travel mm (in.) 1,554
(61.18)		 2,054
(80.87)		 - 1,359.5
(53.52)		 1,961
(77.20)		 -
ATC Tool shank HSK-A63
No. of tools tools 40
Max tool dia mm (in.) ø90 (3.54) (w/o adjacent tools: ø130 (5.12))
Max tool length mm (in.) 400 (15.75) (from gauge line)
Max tool weight kg (lb) 10 (22)
Motor Main spindle motor kW (hp) 37/30 (49/40) (30 min/cont)
Opposing spindle motor kW (hp) − 32/22 (42/30)
(20 min/cont)		 − 22/15 (30/20/17)
(20 min/cont)
Milling tool spindle motor kW (hp) 22/15/11 (30/20/15)
(3 min/15 min/cont)		 22/15/11 (30/20/15)
(3 min/15 min/cont)
X, Z, Y, B axis motor kW (hp) X: 5.2, Z: 4.6 (X: 6.9, Z: 6.1) (DBC 1,500)/
5.2 (6.9) (DBC 2,000),
Y: 3.5 (4.7), B: 3.0 (4.0) 		XA: 5.2, XB: 3.5, ZA:4.6
(XA: 6.9, XB: 4.7, ZA:6.1) (DBC 1,500),
5.2 (6.9) (DBC 2,000), ZB: 4.6, Y: 3.5, B: 3.0
(ZB: 6.1, Y: 4.7, B: 4.0)
W-axis motor kW (hp) 2.8 (3.7) (tailstock) 4.6 (6.1) 2.8 (3.7) (tailstock) 4.6 (6.1)
Coolant motor (50Hz/60Hz) kW(hp) 0.25/0.25 (0.33/0.33) × 1 , 0.55/0.75(0.73/1) × 3
Machine size Height mm (in.) 2,955 (116.34) 3,030 (119.29)
Floor space
W × D
(tank included)		 mm × mm (in.) DBC 1,500: 5,530 × 2,995
(217.72 × 117.91)
DBC 2,000: 6,280 × 2,995
(247.24 × 117.91)		 DBC 1,500: 5,530 × 3,082
(217.72 × 385.25)
DBC 2,000: 6,280 × 3,082
(247.24 × 121.34)
Weight kg (lb) DBC 1,500: 17,300 (38,060)
DBC 2,000: 19,300 (42,460)		 DBC 1,500: 18,300 (40,260)
DBC 2,000: 20,300 (44,660)
CNC OSP-P300SA

*1.ø320 (swing over lower turret) during shaft work and when machining with opposing spindles.
*2.The opposing spindle capacity and working range near the opposing spindle differ with 1SW and 2SW specifications.

MULTUS U3000 (PDF 112KB)

MULTUS U4000 (PDF 112KB)

MULTUS U5000 (PDF 112KB)