Precision Motion Control Solution – MITSUBISHI HG-KR73BG1 | HG-KR Series AC Servo Motor
Where This Product Is Used
The MITSUBISHI HG-KR73BG1 is a 750W medium-inertia AC servo motor from the HG-KR Series, engineered for high-precision, high-response motion control across demanding industrial environments. Typical deployment scenarios include:
- CNC Machining Centers – Feed axis and spindle positioning on vertical/horizontal machining centers requiring sub-micron repeatability.
- Industrial Robots & Articulated Arms – Joint actuation in 4–6 axis robots where compact form factor and low vibration are critical.
- Semiconductor & Electronics Assembly – Pick-and-place, die bonding, and wafer handling requiring smooth, low-ripple torque output.
- Packaging Machinery – High-speed indexing, filling, and sealing lines with frequent start-stop cycles.
- Printing & Converting Equipment – Register control and tension management on web-fed presses.
- Automated Conveyor & Gantry Systems – Multi-axis coordinated motion in material handling and palletizing cells.
- Medical Device Manufacturing – Precision dispensing, cutting, and assembly requiring certified, repeatable motion.
Technical Specifications
| Part Number | HG-KR73BG1 |
| Brand | MITSUBISHI ELECTRIC |
| Series | HG-KR (Medium Inertia, Low Vibration) |
| Rated Output Power | 750 W |
| Motor Type | AC Servo Motor (Synchronous) |
| Encoder Type | High-resolution absolute encoder (22-bit) |
| Compatible Amplifier | MR-J4 Series / MR-JE Series |
| Shaft Configuration | Key-way shaft with brake (BG1 suffix = electromagnetic brake) |
| Insulation Class | Class F |
| Protection Rating | IP65 (shaft seal) |
| Weight | Approx. 1.6 kg |
| Mounting | Flange mount |
| Operating Temperature | 0 °C to 40 °C |
| Vibration Resistance | 49 m/s² |
Full electrical specifications available in the MITSUBISHI HG-KR Series datasheet. Contact us for the official PDF.
Why Engineers Specify This Model
- BG1 Suffix = Electromagnetic Brake – Integrated holding brake prevents axis drop on power-off; essential for vertical-axis and gravity-loaded applications.
- 22-Bit Absolute Encoder – 4,194,304 pulses/rev resolution eliminates homing routines after power cycles, reducing machine downtime.
- Medium Inertia Design – Optimized inertia ratio for machines with moderate load inertia, delivering stable response without oscillation tuning complexity.
- Seamless MR-J4 / MR-JE Integration – Plug-and-play with MITSUBISHI servo amplifiers; auto-tuning and one-touch vibration suppression reduce commissioning time.
- IP65 Shaft Seal – Suitable for coolant-splash environments in machining and food processing.
- Low Cogging Torque – Smooth velocity control at low speeds; critical for surface grinding and precision dispensing.
Complete System Bill of Materials
For a fully operational servo axis using the HG-KR73BG1, the following components are typically required:
- Servo Amplifier: MITSUBISHI MR-J4-70B or MR-JE-70A (750W class)
- Servo Motor: MITSUBISHI HG-KR73BG1 (this unit)
- Motor Cable: MR-PWS1CBL□M-A1-L / A2-L (power cable, length per application)
- Encoder Cable: MR-J3ENCBL□M-A1-L (encoder feedback cable)
- Brake Cable: MR-BKS1CBL□M-A1-L (for BG1 brake variant)
- Motion Controller / PLC: MITSUBISHI MELSEC iQ-R or Q Series with SSCNET III/H
- Regenerative Option: MR-RB032 (if duty cycle demands)
- EMC Filter: Per local regulatory requirement
Contact Konmask for bundle pricing on complete axis kits.
Compliance & Industry Standards
- CE Marking – EU Machinery Directive 2006/42/EC compliant
- UL Listed – UL 1004 (Rotating Electrical Machines)
- RoHS Compliant – Directive 2011/65/EU
- REACH Compliant
- ISO 9001 Manufactured – MITSUBISHI ELECTRIC Nagoya Works
Quality Assurance & Sourcing
Konmask.com sources the HG-KR73BG1 exclusively through authorized distribution channels and verified industrial surplus networks. Every unit undergoes:
- Visual inspection for physical damage, label integrity, and seal condition
- Encoder communication verification prior to dispatch
- Original manufacturer packaging verification where applicable
- Traceability documentation available on request (batch/lot records)
We do not sell counterfeit, refurbished-as-new, or grey-market product. Authenticity guaranteed or full refund.
How to Source This Part
- Add to Cart – Proceed directly if quantity and lead time shown meet your requirement.
- Request a Quote – For volume orders (5+ units), OEM projects, or expedited delivery, email [email protected] with your PO details.
- Technical Pre-Sales – Need to confirm compatibility with your existing MR-J4 amplifier or MELSEC controller? Our engineers respond within 1 business day.
- Export & Customs – We handle HS Code 8501.52 classification and can provide CO, packing list, and commercial invoice for customs clearance.
Application-Specific FAQ
Q: Is the HG-KR73BG1 compatible with the MR-J4-70B amplifier?
A: Yes. The HG-KR73 motor body is the standard pairing for the MR-J4-70B (750W). The BG1 suffix adds the electromagnetic brake; ensure your amplifier has brake output wiring (CN2 connector).
Q: What does the “BG1” suffix mean?
A: “B” denotes an integrated electromagnetic holding brake. “G1” indicates the standard key-way shaft configuration. The brake holds position when power is removed — it is not a dynamic/service brake.
Q: Can this motor be used with a MR-JE amplifier?
A: Yes, the HG-KR73BG1 is compatible with the MR-JE-70A. Note that MR-JE uses a different encoder cable connector (MR-J3ENCBL series). Confirm cable part numbers before ordering.
Q: What is the holding brake torque?
A: The standard HG-KR73B brake provides approximately 1.3 N·m static holding torque. Refer to the MITSUBISHI HG-KR Series specification sheet for full brake electrical ratings.
Q: Do you provide a warranty?
A: All units sold by Konmask carry a minimum 90-day functional warranty. Extended warranty and service contracts available — contact us for terms.
Q: Can you supply the matching cables and amplifier as a kit?
A: Yes. Contact [email protected] with your axis count and cable lengths for a complete kit quotation.
© 2026 Konmask.com. All rights reserved.
Original Source: https://Konmask.com
Contact: [email protected] | +0086 19859288691
