The MITSUBISHI MELSERVO-J2S SERVOMOTOR WITH BREAK 3.5KW HC-SFS352B is a premium AC servo motor engineered for demanding motion control tasks in robotics, CNC machinery, packaging lines, and material handling systems. Built on Mitsubishi’s proven J2S platform, this motor delivers exceptional torque stability, precise positioning, and reliable braking performance. The integrated electromagnetic break ensures safe operation during power loss or emergency stops, making it ideal for vertical axis applications. With a compact yet rugged frame, the HC-SFS352B offers a rated speed of 2000 rpm and a maximum speed of 3000 rpm, supported by a high-resolution 17-bit absolute encoder for closed-loop feedback. Its advanced magnetic circuit design minimizes cogging torque, enabling smooth low-speed operation. The motor is fully RoHS compliant and designed for long service life in temperatures from 0 to 40°C. Below are the detailed technical specifications for this unit.
| Parameter |
Specification |
| Model |
HC-SFS352B |
| Series |
MELSERVO-J2S |
| Rated Output |
3.5 kW |
| Rated Torque |
16.7 N·m |
| Maximum Torque |
50.1 N·m |
| Rated Speed |
2000 rpm |
| Maximum Speed |
3000 rpm |
| Power Supply |
AC 200V (three-phase, 50/60 Hz) |
| Encoder Type |
17-bit absolute encoder (resolution: 131072 pulses/rev) |
| Brake Type |
Electromagnetic spring-set brake (24 VDC, holding torque 20 N·m) |
| Brake Release Voltage |
24 VDC ± 10% |
| Brake Current |
0.75 A |
| Rotor Inertia |
0.00067 kg·m² |
| Mechanical Time Constant |
0.6 ms |
| Electrical Time Constant |
2.8 ms |
| Insulation Class |
Class F (155°C) |
| Protection Rating |
IP65 (shaft end with oil seal) |
| Ambient Temperature |
0 to 40°C (operating) |
| Ambient Humidity |
20% to 80% RH (non-condensing) |
| Vibration Resistance |
5.9 m/s² (0.6 G) at 10 to 55 Hz |
| Mounting Method |
Flange-mounted (standard) |
| Shaft End |
Straight shaft with keyway (per JIS B 1301) |
| Weight |
Approx. 12.5 kg |
| Color |
Black (standard J2S finish) |
| Standards |
RoHS, CE, UL (pending region) |
| Compatible Drive |
MR-J2S-350A or equivalent |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22