Mitsubishi HG-KR43J Servo Motor – Precision Motion Control

Technical Specifications

• Brand: Mitsubishi Electric | Model: HG-KR43J | Type: Low inertia / Small capacity servo motor
• Rated Output: 400 W – suitable for low to moderate power applications
• Rated Torque: 1.3 Nm; Maximum Torque: 4.5 Nm for dynamic acceleration
• Rated Speed: 3000 rpm; Maximum Speed: 6000 rpm ensures fast response
• Rated Current: 2.6 A; Peak Current: 9.1 A for demanding cycles
• Enclosure Rating: IP65 – dust-tight and resistant to water jets
• Temperature Range: 0 to 40 °C with natural cooling
• Maximum Radial Load: 245 N for robust mechanical durability
• Inertia Ratio: Load-to-motor inertia up to 25 times for stable control
• Connection Type: 4-pin rectangular connector simplifies wiring
• Shaft Type: Standard shaft with integrated oil seal prevents contamination
• Weight: 2.94 lbs (1.33 kg) – lightweight yet rugged

Frequently Asked Questions

• Does the HG-KR43J include an electromagnetic brake?
  No, this model does not have a brake. For holding applications, select a brake-equipped variant.
• Which servo drive works with this motor?
  Use Mitsubishi MELSERVO J4 series amplifiers for optimal performance and tuning.
• What is the maximum radial load?
  The motor withstands up to 245 N radial load. Exceeding this may cause premature bearing wear.
• Is the IP65 rating valid with the connector unplugged?
  IP65 protection applies only when the connector is properly mated and sealed.
• What cooling does this servo motor require?
  It uses natural cooling. Provide adequate space around the motor for air circulation.

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