Product Overview
When your application demands precise motion control with rapid acceleration and deceleration, the Mitsubishi HG-MR43B AC Servo Motor delivers. This model from the HG Series is engineered for small-capacity tasks where speed and accuracy are critical. With a rated output of 0.4 kW and an ultra-low inertia design, the HG-MR43B responds quickly to command changes, reducing cycle times in pick-and-place, labeling, and assembly operations.
Technical Specifications Breakdown
The HG-MR43B operates on a 200V class power supply and provides a rated torque of 1.3 Nm, with a maximum torque of 3.8 Nm for short-duration peak loads. Its rated speed is 3000 r/min, and it can reach a maximum speed of 6000 r/min when needed. The motor draws a rated current of 2.6 A and a maximum current of 9 A. An integrated electromagnetic brake ensures the motor holds position safely when power is removed, making it suitable for vertical-axis applications. The straight shaft design and 4-pin rectangular connector simplify installation and wiring.
Industry Applications
Packaging Machinery: The HG-MR43B's ultra-low inertia and 3000 r/min rated speed enable fast indexing and precise cut-to-length operations. Its small capacity (0.4 kW) matches the power requirements of servo-driven wrappers and cartoners.
Automated Assembly: With a maximum torque of 3.8 Nm, this motor can handle light press-fit tasks and screwdriving. The electromagnetic brake provides safety during power loss, preventing tool drops in vertical orientations.
CNC Routing: For small-format routers and engravers, the 6000 r/min maximum speed supports high-speed spindle control, while the 1.3 Nm rated torque maintains accuracy during contouring.
Installation & Setup Guidance
Mount the HG-MR43B using the provided flange pattern (refer to the motor's dimension drawing for bolt size and torque). Ensure the straight shaft aligns with the load coupling without binding. Connect the 4-pin rectangular connector to the compatible servo drive (e.g., Mitsubishi MR-J4 series). Verify that the 200V class power supply matches your line voltage. After wiring, perform a test run without load to confirm rotation direction and brake release. Set the drive parameters for the motor's rated current (2.6 A) and torque limits.
Maintenance & Reliability
The HG-MR43B requires minimal routine maintenance. Inspect the electromagnetic brake function monthly by cutting power and verifying the shaft locks. Check the connector for corrosion or loose pins every six months. Keep the motor housing free of dust and oil mist to prevent overheating. The ultra-low inertia design reduces mechanical stress on bearings, extending service life in cyclic applications.
Selection Guide & Purchasing Advice
Before ordering the HG-MR43B, confirm your application's torque and speed profile. This motor is ideal for small-capacity, high-dynamic tasks. If you need a larger brake or higher torque, consider other HG Series models. SpareTechPLC stocks the HG-MR43B and can advise on compatible servo drives and cables. Verify current lifecycle status and availability with our team before ordering.
Frequently Asked Questions
Q: What is the difference between rated torque and maximum torque on the HG-MR43B?
A: Rated torque (1.3 Nm) is the continuous torque the motor can deliver without overheating. Maximum torque (3.8 Nm) is available for short bursts, typically during acceleration or peak loads.
Q: Does the HG-MR43B include a brake?
A: Yes, it comes with an electromagnetic brake that engages when power is removed, holding the shaft stationary for safety in vertical or holding applications.
Q: What voltage class does this motor require?
A: The HG-MR43B is a 200V class motor. Use a compatible servo drive with a 200V AC input.
Q: Can I use this motor for high-speed applications?
A: Yes, its maximum speed is 6000 r/min, making it suitable for high-speed positioning. However, ensure the load inertia is within the drive's tuning range.
Q: What is the weight of the HG-MR43B?
A: The motor weighs 10.00 lbs (4.54 kg), which includes the electromagnetic brake.
