HG-MR43B Servo Motor – Mitsubishi HG Series 0.4kW AC Ultra-Low Inertia with Brake

HG-MR43B – Mitsubishi HG Series AC Servo Motor

Small but powerful servo motor. Rated 0.4 kW and 3000 r/min. Ultra-low inertia for fast moves. Includes electromagnetic brake and straight shaft. Perfect for precise automation tasks.

Product Description

• AC servo motor – Mitsubishi HG Series. Smooth torque and accurate control.
• Rated speed: 3000 r/min – Max speed up to 6000 r/min. Output: 0.4 kW – Good for small power needs.
• Ultra-low inertia design – Reacts very fast. Cuts settling time.
• Electromagnetic brake inside – Holds load safely when power stops.
• Straight shaft – Easy to couple with other parts. 4-pin rectangular connector for simple wiring.
• Rated torque: 1.3 Nm. Peak torque: 3.8 Nm – Handles sudden loads well.

Technical Specifications

• • ▪ Identity
    • • Maker: Mitsubishi Electric
    • • Family: HG Series
    • • Model: HG-MR43B
    • • Type: AC Servo Motor (brushless)

• • ▪ Power & Speed
    • • Rated output: 0.4 kW (400 watts)
    • • Rated speed: 3000 r/min
    • • Max speed: 6000 r/min
    • • Voltage class: 200V AC class
    • • Rated current: 2.6 A / Max current: 9 A

• • ▪ Torque Performance
    • • Rated torque: 1.3 Nm
    • • Max torque (peak): 3.8 Nm
    • • Torque linearity: smooth across speed range

• • ▪ Inertia & Dynamics
    • • Inertia class: Ultra-low inertia – quick acceleration/deceleration
    • • Frequency response: up to 2.0 kHz (drive dependent)

• • ▪ Mechanical Data
    • • Weight: 4.54 kg (10.00 lbs)
    • • Shaft shape: Straight shaft
    • • Connector: 4-pin rectangular connector
    • • Brake: Electromagnetic brake (24 V DC)

• ▪ Environmental Tolerance
  • • Protection: IP rating not specified – standard indoor use (IP10 typical)
  • • Operating temp: 0°C to +40°C
  • • Humidity: 5% to 90% RH (non-condensing)

Installation Guide

• Mounting: Any direction. Keep space for air flow.
• Shaft connection: Use coupling on straight shaft. Do not hammer.
• Wiring: Plug into 4-pin rectangular connector. Tighten screws lightly.
• Brake wiring: Apply 24 V DC to release brake. Brake holds when power off.
• Grounding: Connect frame to ground terminal for safety.

Debugging & Maintenance

• Auto-tuning: Works with MR-J4 / MR-JE drives. Saves setup time.
• Simple connector: 4-pin plug makes replacement quick.
• Check brake monthly: Listen for noise. Test holding torque.
• No extra encoder battery needed – uses incremental encoder, easy maintenance.
• Keep shaft and connector clean. Avoid dust buildup.

Compatibility

• Works with Mitsubishi drives: MR-J4-20A, MR-JE-20A, MR-J5-20A (200V class).
• Supports position, speed, torque control via PLC commands.
• Compatible with MELSEC iQ-R, Q series, L series PLCs.
• Use with any controller that outputs standard servo pulse/direction signals.

Certifications

• CE marked – meets EU safety and EMC rules.
• UL listed (E171462) – accepted in North America.
• RoHS – no harmful substances.

Package Contents

• 1 x HG-MR43B AC servo motor (with electromagnetic brake)
• 1 x 4-pin rectangular connector (motor side)
• 1 x shaft key (if applicable)
• Quick start guide (digital copy via QR)

Warranty & Fast Delivery

• 12-month warranty from purchase date. Covers material and workmanship.
• Dispatch in 12-24 hours for in-stock units (Monday-Friday).
• Shipping partners: FedEx, UPS, DHL – worldwide express.
• Tracking number provided after shipment.

Expert Review

Motion control engineer: The HG-MR43B shines in high-speed pick-and-place. Ultra-low inertia gives instant response. 3.8 Nm peak torque handles sudden stops. Brake holds vertical loads reliably. No encoder battery means less downtime. Perfect for compact machines where speed matters.

Manager’s Insight

For production lines needing fast cycles and simple maintenance, HG-MR43B is a smart choice. 6000 r/min max speed cuts cycle time. Straight shaft makes mounting easy. The brake adds safety without extra parts. Low cost of ownership. Recommended for electronics assembly and small robots.

Applications & Suitable Devices

• Typical uses: Small CNC machines, pick-and-place heads, label dispensers, conveyor drives, 3D printers, medical pumps.
• Suitable devices: Robotic arms (small joints), indexing tables, automated test equipment, semiconductor handlers.
• Industries: Electronics manufacturing, packaging, lab automation, light assembly.

Frequently Asked Questions

• • Q1: What drive works best with HG-MR43B?
    A: Use MR-JE-20A or MR-J4-20A. They support ultra-low inertia tuning. MR-J5 series also works.
  • Q2: Can this motor run without a brake?
    A: Brake is built-in. You can choose not to wire it. But brake adds safety for vertical loads.
  • Q3: How to get max speed 6000 r/min?
    A: Set drive parameter for speed limit. Ensure load inertia ratio below 5:1. Use proper supply voltage.
  • Q4: Does this motor need a battery for encoder?
    A: No. HG-MR43B uses incremental encoder. No battery needed. Simpler than absolute type.
  • Q5: What is the holding torque of the electromagnetic brake?
    A: Approx 1.27 N·m static. Enough to hold motor shaft when power is off. Not for dynamic braking.

• • Q6: Real-world advice: How to reduce noise at high speed?
    A: Balance the load on shaft. Use flexible coupling. Set drive auto-tuning to “low vibration” mode.

• Buying Guide & Tips
  Choose HG-MR43B when you need ultra-low inertia and speeds up to 6000 r/min. Great for frequent start-stop. Check torque: 1.3 Nm rated is enough for light loads. For heavier loads, pick larger model. We offer 12-month warranty and ship within 12-24 hours via FedEx, UPS, or DHL. Contact us for bulk pricing. Remember to order mating drive separately. Ensure voltage matches your region (200V AC).

Contact Information

Questions? Reach out to our team:

• 📧 Email: sales@powergearx.com
• 📱 WhatsApp: +86 18030005825 (click to chat)

For vibration monitoring, see 3300 5mm Proximity Probes.

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