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MDS-D/DH Series Specifications Manual
2-2 Spindle motor
2 - 33
< SJ-4-V Series (Wide range constant output)>
(Note 1) The rated output is guaranteed at the rated input voltage (380 to 440VAC 50Hz / 380 to 480VAC 60Hz)
to the power supply unit. If the input voltage fluctuates and drops below 380VAC, the rated output may
not be attained.
(Note 2) The tolerable radial load is the value calculated at the center of output shaft.
Spindle motor type SJ-4-V11-18T SJ-4-V11-21T SJ-4-V15-20T SJ-4-V18.5-17T SJ-4-V22-16T
Compatible
spindle drive
unit type
MDS-DH-SP- 80 100 160
Output
capacity
Continuous rating [kW] 3.7 5.5 7.5 9 11
Short time rating [kW]
5.5
(30-minute rating)
7.5
(30-minute rating)
9
(30-minute rating)
11
(30-minute rating)
15
(30-minute rating)
Power facility capacity [kVA] 9.9 13.4 16.1 19.6 26.7
Base rotation speed [r/min] 750
Maximum rotation speed [r/min] 6000
Frame No. B112 A160 B160
Continuous rated torque [N•m] 47.1 70.0 95.5 115 140
GD
2
[kg•m
2
]
0.12 0.23 0.23 0.32 0.32
Inertia [kg•m
2
]
0.03 0.06 0.06 0.08 0.08
Tolerable radial load [N] 1960 2940
Cooling fan
Input voltage 3-phase 400V
Maximum power
consumption
70W 72W
Environment
Ambient temperature Operation: 0 to 40°C (with no freezing), Storage: -20°C to 65°C (with no freezing)
Ambient humidity Operation: 90%RH or less (with no dew condensation), Storage: 90%RH or less (with no dew condensation)
Atmosphere Indoors (no direct sunlight); no corrosive gas, inflammable gas, oil mist, or dust
Altitude
Operation: 1000 meters or less above sea level, Storage: 1000 meters or less above sea level,
Transportation: 10000 meters or less above sea level
Degree of protection IP44
Flange size [mm] 204 SQ. 250 SQ. 250 SQ. 250 SQ. 250 SQ.
Total length (excluding shaft) [mm] 490 469.5 469.5 539.5 539.5
Flange fitting diameter [mm] φ180 φ230 φ230 φ230 φ230
Shaft diameter [mm] φ48 φ48 φ48 φ55 φ55
Mass [kg] 70 110 135
Heat-resistant class F (155°C)
For outline dimension drawings, refer to "DRIVE SYSTEM DATA BOOK" (IB-1500273(ENG)).