Horizontal Machining Centers MA-HⅡ series
Machine structure for high speed feed and high rigidity
  • Highly rigid 3-point supported bed
    • Easy installation thanks to bed that does not twist.
    • Supporting stable, high accuracy over a long period.
  • Ball screw bracket
    • The ball screw brackets at both ends of the X-Y-Z axes are reinforced and combined for highly accurate drive and positioning.
  • Ball screw cooling
    • X-Z axis ball screw cooling and Y-axis motor bracket cooling are standard. Assuring stable accuracy during high rates of operation.
  • Indexing table, pallet
    • Indexing table uses curvic coupling for high-accuracy indexing.
      • Std: 1 degree
      • Opt: NC 0.001°
    • Pallet seating surface uses a taper cone system for high accuracy positioning and high durability.
Machine structure for high speed feed and high rigidity
High-speed operation that reduces non-cutting time
  • Rapid traverse:
    60 m/min (X-Y-Z axes)
  • Rapid acceleration:
    0.7G (maximum)
  • Tool change:
    2.0 sec (T-T)
    4.4 sec (C-C)
  • Table indexing:
    2.0 sec (MA-600HⅡ 1 degree indexing 90 degrees)
    2.5 sec (MA-600HⅡ 0.001 degree indexing 90 degrees)
  • APC time:
    12 sec (MA-600HⅡ)
Ideal performance levels from a variety of
spindles for a wide range of applications
Highly efficient production with high machining capacity
  • Highly efficient production with high machining capacity
Machining capacity

901cm3/min (MA-500HⅡ actual data*1)

Standard spindle: 6,000 min-1 ø100 face mill Material: S45C

Tool Spindle speed
min-1		 Cutting
m/
min		 Feedrate
mm
/min		 Cut width
mm		 Cut depth
mm		 Chips
cm3
/min
ø100 face mill 10 blades (carbide) 955 300 3,220 70 4 901
ø50 porcupine cutter (carbide) 1,146 180 500 25 50 625
ø63 insert drill (carbide) 606 120 121 - - -
M42 P4.5 tap 91 12 409.5 - - 81%*

* Spindle load

802cm3/min (MA-600HⅡ actual data*1)

Wide-range spindle: 12,000 min-1 ø100 face mill Material: S45C

Tool Spindle speed
min-1		 Cutting
m/
min		 Feedrate
mm
/min		 Cut width
mm		 Cut depth
mm		 Chips
cm3
/min
ø100 face mill 10 blades (carbide) 955 300 2,865 70 4 802
ø50 porcupine cutter (carbide) 1,146 180 400 25 50 500
ø63 insert drill (carbide) 606 120 91 - - -
M42 P4.5 tap 91 12 409.5 - - -

1,081cm3/min (MA-600HⅡ actual data*1)

Super-heavy spindle: 6,000 min-1 (Optional) ø200 face mill Material: S45C

Tool Spindle speed
min-1		 Cutting
m/
min		 Feedrate
mm
/min		 Cut width
mm		 Cut depth
mm		 Chips
cm3
/min
ø200 face mill 10 blades (cermet) 330 207 1,404 140 5.5 1,081

*1. The data shown here represent "actual data," which may not be obtained under different specifications, tooling, cutting, and other conditions.

Outstanding dimensional stability
with long-run machining of large workpieces
Manageable Deformation—Accurately Controlled
Thermo-Friendly Concept

Dimensional changes of less than 8μm over time in a wide machining range (actual data with room temperature change of 8°C [TAS-C applicable])

In addition to maintaining high dimensional accuracy when room temperature changes, Okuma's Thermo-Friendly Concept provides high dimensional accuracy during machine startup and machining restart.
To stabilize thermal deformation, warming-up time is shortened and the burden of dimensional correction during machining restart is reduced.

Click here for details on the
Thermo-Friendly Concept

Machine Specifications

Item Unit MA-500HⅡ MA-600HⅡ
No. 50 No. 40*1 No. 50 No. 40*1
Travels X-axis travel
(column left/right)		 mm (in.) 700 (27.56) 1,000 (39.37)
Y-axis travel
(spindle up/down)		 mm (in.) 900 (35.43)
Z-axis travel
(table front/back)		 mm (in.) 780 (30.71) 1,000 (39.37)
Spindle center to pallet top mm (in.) 50 to 950 (1.97 to 37.40)
Spindle nose to pallet center mm (in.) 70 to 850 (2.76 to 33.46) 70 to 1,070 (2.76 to 42.13)
Pallet Work area mm (in.) 500 × 500 (19.69 × 19.69) 630 × 630 (24.80 × 24.80)
Max load capacity kg (lb) 800 [1,000] (1,760 [2,200]) 1,200 [1,400] (2,640 [3,080])
Indexing angle deg 1 [0.001]
Max workpiece dimensions mm (in.) ø800 × 1,000 (ø31.50 × 39.37) ø1,000 × 1,000 (ø39.37 × 39.37)
Spindle Spindle speed min-1 50 to 6,000[50 to 6,000(Super-heavyspindle), 50 to12,000] 50 to 15,000, 50 to 20,000 50 to 6,000[50 to 6,000,(Super-heavyspindle), 50 to12,000, 20,000] 50 to 15,000, 50 to 20,000
Tapered bore 7/24 taper No. 50[HSK-A100] 7/24 taper No. 40, HSK-A63*2 7/24 taper No. 50[HSK-A100]*3 7/24 taper No. 40, HSK-A63*2
Bearing dia mm (in.) ø100 (ø3.94) ø70 (ø2.76) ø100 (ø3.94) ø70 (ø2.76)
Feedrate Rapid traverse m/min (ipm) X-Y-Z: 60 (2,362)
Cutting feed mm/min (ipm) X-Y-Z: 1 to 60,000 (0.04 to 2,362)
Motors Spindle (10 min/cont) *4 kW (hp) 30/22[45/37*4, 37/26](40/30[60/50, 50/35]) 26/18.5, 30/22(35/25, 40/30) 30/22 [45/37*4,37/26, 55/50*5](40/30 [60/50,50/35, 75/66]) 26/18.5, 30/22(35/25, 40/30)
Feed axis motors kW (hp) X: 4.6 (6.13), Y: 4.6 (6.13) × 2, Z: 4.6 (6.13) X: 4.6 (6.13), Y: 4.6 (6.13) × 2, Z: 5.2 (6.93)
Table indexing kW (hp) 3.5 (4.67)
ATC Tool shank MAS403 BT50[HSK-A100] MAS 403 BT40, HSK-A63*2 MAS403 BT50[HSK-A100]*3 MAS 403 BT40, HSK-A63*2
Pull stud MAS-2 [–]
Magazine capacity tools 40 [60, 81, 111, 141, 171, 195, 225, 255, 285, 320, 400]
Max tool dia
(w/ adjacent) *6		 mm (in.) ø140 (5.51) ø100 (3.94) ø140 (5.51) ø100 (3.94)
Max tool dia
(w/o adjacent) *6		 mm (in.) ø240 (9.45) ø150 (5.91) ø240 (9.45)*7 ø150 (5.91)
Max tool length mm (in.) 450 (17.72) 450 (17.72) 450 [600] (17.72 [23.62]) 450 (17.72)
Max tool weight kg (lb) 25 (55) 10 (22) 25 (55) 10 (22)
Tool selection Memory random (Fixed with 81 or more tools)
Machine size Height mm (in.) 3,174 (124.96)
Floor space; width x depth mm (in.) 3,110 × 5,971 (122.44 × 235.08) 3,410 × 6,495 (134.25 × 255.71)
Weight kg (lb) 21,500 (47,300) 24,500 (53,900)
Controller OSP-P300MA

[ ]: Optional

*1. No. 40 spindle is optional.

*2. 20,000 min-1 with HSK-A63 only

*3. 20,000 min-1 with HSK-A100 only

*4. Super-heavy spindle motor rating is 20 min/cont (for heavy-duty cutting)

*5. 20,000 min-1 spindle motor rating is 30 min/cont

*6. Values differ with a matrix magazine. Please inquire.

*7. With MA-600HⅡ 20,000 min-1, the maximum tool diameter is limited depending on the spindle speed used.