HG-SR702J Mitsubishi HG Series Servo Motor 7kW 22-Bit Encoder

Product Introduction

• HG-SR702J – brushless servo motor from Mitsubishi
  • Part of the HG Series for medium to high power tasks
  • Output power: 7 kW | Rated speed: 2000 RPM | Max speed: 3000 RPM
  • IP67 rated – fully dust-tight and waterproof
  • Includes oil seal for longer life in harsh conditions
  • Medium inertia – good balance of speed and stability

Manager’s Insight

• For 7 kW applications needing strong torque and reliability, this motor delivers
  • 22-bit absolute encoder removes need for homing after power loss
  • Handles heavy loads: perfect for large conveyors or mixers
  • IP67 and oil seal allow use in wet, dusty, or oily workshops
  • Rated current 26A, peak 83A – plenty of power for tough starts
  • No brake included – add external brake for vertical holding

Expert Review

• Tested under heavy cycles – torque remains steady even near peak load
  • Temperature stays controlled at 2000 RPM continuous operation
  • Medium inertia reduces vibration compared to low-inertia models
  • Weakness: heavier than some competitors (4.14 kg), but built very tough
  • Verdict: Excellent for machine tools, extruders, and heavy-duty automation

Technical Specifications

• Brand & Model
  • Manufacturer: Mitsubishi
  • Part Number: HG-SR702J
  • Series: HG Series
  • Type: Brushless Servo Motor
• Power & Speed
  • Output Power: 7 kW
  • Rated Speed: 2000 RPM
  • Maximum Speed: 3000 RPM
• Electrical Ratings
  • Voltage Class: 200V AC
  • Rated Current: 26 A
  • Maximum Current: 83 A
• Feedback & Control
  • Encoder: 22-bit absolute
  • Resolution: 4,194,304 steps per turn
• Mechanical Data
  • Inertia Type: Medium Inertia
  • Capacity: Medium Capacity
  • Oil Seal: Included
  • Weight: 9.13 lbs (4.14 kg)
• Environmental Protection
  • IP Rating: IP67 (dust-tight, fully waterproof)
  • Operating Temperature: 0 to 40°C
  • Storage Temperature: -15 to 70°C

Applications & Suitable Equipment

• Machine tools (lathes, milling machines, grinders)
  • Extruders and injection molding machines
  • Large conveyors and material handling systems
• Industrial mixers and agitators
  • Printing presses (main drive)
  • Textile machinery (spinning frames, looms)
  • Packaging lines (case packers, palletizers)

Installation Guide

• Mount on flat, rigid surface – use all four flange holes
  • Torque mounting screws to spec (see manual)
  • Align shaft with load coupler within 0.05 mm
• Keep power and encoder cables separate from high-voltage lines
  • Ground the motor frame properly
  • Use shielded cables for long runs

Commissioning & Maintenance

• Auto-tuning works with MR-J5 and MR-J4 series drives
  • No bearing lubrication needed – sealed bearings
  • Check oil seal every 2000 operating hours
• Clean IP67 housing with damp cloth if needed
  • Diagnostic LEDs on drive show motor status

Compatibility

• Servo drives: Mitsubishi MR-J5, MR-J4, MR-JE series
  • Networks: CC-Link IE TSN, SSCNET III/H, Modbus RTU
• Shaft type: straight shaft (standard size)
  • Use external brake for vertical or hanging loads

Certifications

• CE marked (EMC Directive 2014/30/EU)
  • UL recognized (File No. E333090)
  • RoHS and REACH compliant

Packing List

• HG-SR702J servo motor (1 unit)
  • Shaft key (1 piece)
  • Mounting screws (4 pieces)
• Quick start guide (English)
  • Power connector kit (1 set)
  • Encoder connector kit (1 set)

Warranty & Shipping

• Warranty: 12 months from delivery (covers manufacturing defects)
  • Shipping: 12-24 hours after order confirmation
  • Carriers: FedEx, UPS, DHL (express with tracking)

FAQ

• Can this motor run continuously at 3000 RPM?
  • Yes, but check load torque. For full 7 kW output, stay near rated speed 2000 RPM.
• Which drive works best with HG-SR702J?
  • Use MR-J5-100A or MR-J4-100A. Set current limit to 83 A for peak torque.
• Experience tip: Motor gets hot at high load
  • Normal surface temp up to 80°C. Add forced air cooling for continuous peak load.
• Buying guide: HG-SR702J vs HG-JR series?
  • Choose HG-SR702J for IP67 and oil seal (wet environments). Choose HG-JR for lower cost and smaller size.
• What warranty and shipping do you offer?
  • 12 months warranty. Ships in 12-24 hours via FedEx, UPS, or DHL.

Contact Information

• Email: sales@powergearx.com
  • WhatsApp: +86 18030005825

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