The MITSUBISHI MELSERVO-J2S SERVOMOTOR WITH BREAK 700W HC-KFS73B represents a cornerstone of precision servo technology, delivering exceptional torque density and dynamic response for modern automation tasks. This model integrates a fail-safe electromagnetic brake, making it the preferred choice for applications requiring secure holding under power-off conditions, such as robotic axes, CNC tool changers, and conveyor diverters. Backed by Mitsubishi Electric's renowned reliability, the HC-KFS73B ensures stable operation across a wide speed range while maintaining low vibration and noise levels. Its standardized flange dimensions allow for easy retrofitting into existing systems, and the high-resolution incremental encoder provides precise position feedback for closed-loop control. Below is the detailed technical specification table for this servo motor.
| Parameter |
Specification |
| Model |
HC-KFS73B (700W with Brake) |
| Rated Output Power |
700 W (0.75 kW) |
| Rated Torque |
2.4 N·m |
| Maximum Torque |
7.2 N·m (300% overload) |
| Rated Speed |
3000 min⁻¹ (rpm) |
| Maximum Speed |
5000 min⁻¹ (rpm) |
| Rated Current |
3.6 A (AC supply, typical) |
| Encoder Type |
Incremental encoder, 2500 ppr (pulses per revolution) |
| Brake Type |
Electromagnetic spring-set brake (24 VDC) |
| Brake Holding Torque |
2.5 N·m (minimum) |
| Brake Power Consumption |
7.5 W (typical) |
| Insulation Class |
Class B (130°C) |
| Protection Rating |
IP55 (shaft end and connector area) |
| Flange Size |
80 mm square (IEC standard) |
| Shaft Diameter |
14 mm (keyed shaft with keyway) |
| Weight (with brake) |
Approx. 3.2 kg |
| Ambient Temperature Range |
0°C to +40°C (operation) |
| Ambient Humidity |
20% to 80% RH (non-condensing) |
| Vibration Resistance |
2.5 G (max) |
| Compatible Amplifier Series |
MELSERVO-J2S (e.g., MR-J2S-70A or MR-J2S-70B) |
| Connection Type |
Standard connector with screw terminals |
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