High speed medium inertia AC servo motor EM3J-08
Output power
750 W
Rated speed
3000 rpm
Maximum speed
6000 rpm
Rated torque
2.39 Nm
Flange
80 mm
EM3J-08 is a high speed and medium inertia 750 W synchronous AC brushless servo motor. The motors can be equipped with 17-bit magnetic or 23-bit optical absolute encoder. Optional 24VDC brake is available.
Technical data
Rated torque
2.39 Nm
Maximum torque (EM3J-08ATA)
7.17 Nm
Maximum torque (EM3J-08ALA)
8.37 Nm
Rated current
5.1 A
Maximum current (EM3J-08ATA)
16.1 A
Maximum current (EM3J-08ALA)
19.5 A
Motor inertia (motor without brake)
1.64 kg∙cm²
Motor inertia (motor with brake)
1.79 kg∙cm²
Allowable radial shaft load
392 N
Allowable axial shaft load
147 N
Optional brake holding torque
≥3.2 Nm
Optional brake voltage
24 VDC
Weight (motor without brake)
2.3 kg
Weight (motor with brake)
2.9 kg
Rated torque
2.39 Nm
Maximum torque (EM3J-08ATA)
7.17 Nm
Maximum torque (EM3J-08ALA)
8.37 Nm
Rated current
5.1 A
Maximum current (EM3J-08ATA)
16.1 A
Maximum current (EM3J-08ALA)
19.5 A
Motor inertia (motor without brake)
1.64 kg∙cm²
Motor inertia (motor with brake)
1.79 kg∙cm²
Allowable radial shaft load
392 N
Allowable axial shaft load
147 N
Optional brake holding torque
≥3.2 Nm
Optional brake voltage
24 VDC
Weight (motor without brake)
2.3 kg
Weight (motor with brake)
2.9 kg
Available motor models
| Motor model | Encoder | Brake | Waterproof connector | Servo driver | Input drive supply voltage |
| Absolute optic encoder, resolution 23-bit (8 388 608 ppr) | - | - | ED3L-08AEA ED3L-08APA | Single phase AC 200V...240V | |
| EM3J-08ALA241 | ✓ | ||||
| EM3J-08ALA222 | - | ✓ | |||
| EM3J-08ALA242 | ✓ | ||||
| EM3J-08ATA221 | Absolute magnetic encoder, resolution 17-bit (131 072 ppr) | - | - | ||
| EM3J-08ATA241 | ✓ | ||||
| EM3J-08ATA222 | - | ✓ | |||
| EM3J-08ATA242 | ✓ |
Dimensions of AC servo motor EM3J-08
| Motor model | L, mm | LL, mm |
| EM3J-08ALA22x | 142 | 102 |
| EM3J-08ALA24x | 175 | 135 |
| EM3J-08ATA22x | 159 | 119 |
| EM3J-08ATA24x | 192 | 152 |
Speed-torque curves of AC servo motor EM3J-08
Description of AC servo motor EM3J-08
EM3J-08 is a high speed and medium inertia 750 W synchronous AC brushless servo motor. The motors can be equipped with 17-bit magnetic or 23-bit optical absolute encoder.
Independent electromagnetic design improve rotor rotation inertia. Inherit all the advantages of EM3A series, but with higher inertia. This high speed series offers a range of output power and different encoder types.
Optional 24 VDC brake is available.
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