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2 Specifications
MITSUBISHI CNC
2 - 34
< SJ-4-VS Series (Hollow shaft) >
(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) Do not apply a radial load.
Spindle motor type SJ-4-VS7.5-13ZT SJ-4-VS22-18ZT SJ-4-VS30-15ZT
Compatible
spindle drive
unit type
MDS-DH-SP- 80 160
Output
capacity
Continuous rating [kW] 5.5 11 18.5
Short time rating [kW]
7.5
(30-minute rating)
15
(30-minute rating)
22
(30-minute rating)
Power facility capacity [kVA] 13.4 26.7 39.0
Base rotation speed [r/min] 1500 1500
Maximum rotation speed [r/min] 12000 8000
Frame No. A112 A160 B160
Continuous rated torque [N•m] 35.0 70.0 118
GD
2
[kg•m
2
]
0.099 0.23 0.32
Inertia [kg•m
2
]
0.025 0.058 0.08
Tolerable radial load [N] 0 (Note 3) 0 (Note 3) 0 (Note 3)
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.
Total length (excluding shaft) [mm] 440 469.5 539.5
Flange fitting diameter [mm] φ180 φ230 φ230
Shaft diameter [mm] φ32 φ48 φ55
Mass [kg] 65 115 140
Heat-resistant class F (155°C)
For outline dimension drawings, refer to "DRIVE SYSTEM DATA BOOK" (IB-1500273(ENG)).