Mitsubishi Electric HG-MR73B MELSERVO HG-MR Series Servo Motor

SKU HG-MR73B

In stock

12-month warranty
Free returns within 30 days

Manufacturer: Mitsubishi Electric
Product No.: HG-MR73B
Country of origin:United States
Product Type: Servo Motors
Payment: T/T, Western Union
Weight: 5000g
Shipping port: Xiamen
Warranty: 12 months

Description

Designed for high-dynamic, high-precision industrial motion control, the HG-MR73B rotary AC servo motor delivers rapid acceleration and deceleration capabilities within an ultra-low inertia footprint. This 750W power-class actuator integrates directly with Mitsubishi Electric MELSERVO-J4 servo amplifiers, providing high-resolution positioning and robust performance in high-speed machinery. Featuring an integrated electromagnetic brake, this module ensures reliable shaft retention during power-loss or disabled states, making it highly suited for vertical axis control or holding applications.

Features

Ultra-low inertia rotor design optimized for high-frequency start/stop operational profiles.
High-resolution 22-bit absolute/incremental encoder providing 4,194,304 pulses per revolution for exceptional positioning accuracy and velocity smoothness.
Built-in electromagnetic holding brake ("B" suffix) to prevent axis slippage during power cuts.
IP65 environmental protection rating (excluding the shaft-through portion) for resilience in challenging industrial conditions.
Seamless integration with the MELSERVO-J4 amplifier platform via high-speed serial feedback.

Applications

High-speed pick-and-place industrial robotics.
Material handling inserters and packaging machinery.
Semiconductor manufacturing and wafer handling equipment.
X-Y gantry systems and vertical axis positioning assemblies.
Textile feeder and tension control machinery.

Technical Specifications

CategorySpecification ParameterValue

Manufacturer	Mitsubishi Electric	MELSERVO HG-MR Series
Model/Part Number	HG-MR73B	Rotary AC Servo Motor
Rated Output Power	0.75 kW (750 W)	Continuous duty rating
Rated Speed	3000 r/min	Base operating velocity
Maximum Speed	6000 r/min	Peak allowable velocity
Inertia Classification	Ultra-low inertia	Designed for rapid response
Electromagnetic Brake	Integrated (Holding brake)	Actuated via external 24 VDC supply
Encoder Resolution	22-bit (4,194,304 pulses/rev)	Absolute/Incremental encoder feedback
IP Rating	IP65	Excludes shaft-through portion
Ambient Operating Temperature	0 to 40 degC	Non-freezing environment
Ambient Operating Humidity	85% RH or less	Non-condensing atmosphere
Compatible Amplifiers	MR-J4-70A, MR-J4-70B, MR-J4-70GF	MELSERVO-J4 Series 750W Amplifiers

Connections and Interfaces

Connection Interface	Function Description
Motor Power Connector	Supplies 3-phase AC power (U, V, W) and protective earth (PE) ground to the motor windings.
Brake Connector	Dedicated 24 VDC input connection to engage/release the internal electromagnetic holding brake.
Encoder Connector	Transmits high-speed serial feedback data directly to the matching servo amplifier.

Installation Guidelines

Mounting Alignment: Ensure precise alignment between the motor shaft and the driven load. Always use flexible couplings to mitigate radial and axial forces beyond specified shaft load limits.
Brake Operation: The electromagnetic brake is strictly designed as a holding brake. Do not use this brake for dynamic braking or deceleration control under normal operating conditions.
Cable Routing: Separate encoder cables from main power and motor drive cables by at least 10 cm to prevent electromagnetic interference (EMI).
Heat Dissipation: Mount the motor in a well-ventilated space, ensuring the surrounding air temperature does not exceed 40 degC during continuous duty cycles.

Compliance and Certifications

CE (Conformite Europeenne)
UL Listed / cUL Certified
KC (Korea Certification)

FAQ

What is the main function of the electromagnetic brake in the HG-MR73B?

The integrated electromagnetic brake on the HG-MR73B is a holding brake designed to lock the motor shaft in place when power is removed, preventing gravity-fed slippage on vertical axes or unexpected movement during system stops.

Which Mitsubishi servo drives are compatible with the HG-MR73B motor?

The HG-MR73B is fully compatible with Mitsubishi Electric MELSERVO-J4 series amplifiers rated for 750W, including the MR-J4-70A, MR-J4-70B, and MR-J4-70GF units.

Can the HG-MR73B be used in dusty or wet environments?

The HG-MR73B features an IP65 environmental rating, which protects against dust ingress and low-pressure water jets. However, the shaft-through passage is not sealed to IP65, so an oil seal or protection cover must be used if liquid exposure is expected at the shaft.

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Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our technical warranty.

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Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

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