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Mitsubishi HG-KN73JK AC servo motor with keyed shaft and electromagnetic brake

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Mitsubishi HG‑KN73JK

by Mitsubishi Electric

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OverviewThe Mitsubishi Electric HG-KN73JK is an advanced AC servo motor within the MELSERVO J5 Series, designed for exceptional accuracy and dependable operation in challenging industrial environments. Featuring a rotor with medium inertia, a sturdy keyed shaft, and an integrated electromagnetic brake, this motor ensures smooth, precise motion control. Rated at 750 W, the HG-KN73JK is an excellent choice for various applications demanding dynamic performance, serving as a core component for efficient automation.Key Features Rated Power: 750 W (0.75 kW) for potent and efficient functionality. Voltage: 200 V AC, 3-phase, offering wide compatibility with industrial power sources. Rated Speed: A consistent 3000 rpm, with a maximum speed capacity up to 6000 rpm for applications requiring higher velocity. Brake: Includes a built-in electromagnetic holding brake for secure load retention and improved safety. Shaft Type: Equipped with a keyed shaft, ensuring robust and reliable torque transmission. Medium Inertia: Delivers balanced performance suitable for a broad spectrum of general-purpose motion control tasks. High Accuracy: Features an elevated resolution encoder, enabling superior and exact positioning. Compact Design: Optimized for space efficiency, allowing easy incorporation into installations with restricted room. Vibration Resistant: Constructed to endure industrial vibrations, providing durability and consistent performance. Technical Specifications Model Number: HG-KN73JK Series: MELSERVO J5 Rated Power Output: 750 W Rated Voltage: 200 V Rated Speed: 3000 rpm Maximum Speed: 6000 rpm Rated Torque: Approximately 2.4 N·m Peak Torque: Approximately 7.2 N·m Shaft: With key (JK type) Brake: Yes, electromagnetic Encoder: High-resolution absolute encoder Protection Rating: IP65 (excluding shaft) Cooling Method: Natural cooling Mounting: Flange mount Weight: Approximately 3.5 kg ApplicationsThe adaptability and precision of the Mitsubishi Electric HG-KN73JK servo motor make it an essential component across diverse advanced industrial applications, including: CNC and Machine Tools: Supplying accurate and repeatable motion for cutting, shaping, and milling processes. Robotic Joints and Actuators: Enabling fluid and precise movements in complex robotic systems. Packaging and Labeling Machines: Ensuring high-speed and accurate product handling and labeling. Industrial Conveyor Systems: Driving efficient and synchronized material transport. Automated Pick-and-Place Machines: Facilitating rapid and precise component placement in assembly lines. Why Choose This Model?Selecting the Mitsubishi Electric HG-KN73JK servo motor represents an investment in peak performance and lasting reliability for your automation requirements. Dependable Torque Transmission: The resilient keyed shaft design guarantees maximum mechanical stability and effective power transfer. Integrated Brake: Provides an essential safety feature, securing the load and maintaining position even during power loss or at standstill. Versatile Fit: Its medium inertia characteristics make it exceptionally adaptable, supporting a wide range of motion control applications with varied load requirements. Mitsubishi Precision: Optimized for seamless integration and superior performance when paired with MR-J5 servo drives, harnessing the full potential of Mitsubishi Electric's advanced motion control technology. Long-Term Durability: Engineered for continuous industrial operation, the HG-KN73JK is built to endure demanding conditions, ensuring an extended operational lifespan and minimal downtime. Order NowElevate your industrial automation capabilities with the precision and reliability of the Mitsubishi Electric HG-KN73JK servo motor. This high-performance model is readily available for worldwide shipping, allowing you to swiftly upgrade or implement leading-edge technology in your systems.FAQWhat is the rated power of the Mitsubishi HG-KN73JK servo motor?The Mitsubishi HG-KN73JK servo motor has a rated power output of 750 W (0.75 kW).What type of shaft does the HG-KN73JK motor feature?This motor is equipped with a robust keyed shaft (JK type) for reliable torque transmission.Does the Mitsubishi HG-KN73JK include a brake?Yes, it incorporates an electromagnetic holding brake for enhanced safety and load retention.What is the protection rating of this servo motor?The HG-KN73JK has an IP65 protection rating, excluding the shaft.What applications are suitable for the HG-KN73JK servo motor?It is well-suited for CNC machines, robotics, packaging equipment, conveyor systems, and pick-and-place machines, among others.

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PRODUCT DETAILS

Mitsubishi HG‑KN73JK

Overview

This is a genuine Mitsubishi Electric component from the Servo Drives & Motors family. PalmPartsSolution stocks it in new, refurbished, and surplus condition with tested warranty and same-day shipping on in-stock units.

Whether you are sourcing a like-for-like replacement for an existing installation, an emergency spare to keep a line running, or a qualified part for a new build, our team can confirm availability, revision, and lead time before you order.

Key Features

  • Genuine Mitsubishi Electric catalog part
  • Tested before shipment
  • Backed by PalmPartsSolution warranty
  • Cross-reference and revision assistance available
  • Compatible with the broader Mitsubishi Electric automation ecosystem
  • Engineered to integrate inside Servo Drives & Motors installations

Compatibility

When ordering, match the full catalog/part number, hardware revision, and firmware revision called out by your Mitsubishi Electric equipment. Where applicable, confirm:

  • Input/output voltage and current rating
  • Communication protocol and network role
  • Mounting form factor and footprint
  • Operating temperature, humidity, and IP rating
  • Required certifications (UL, CE, ATEX, marine, etc.)

Not sure which revision you need? Send us the catalog number on the nameplate and we will confirm the correct match.

Replacement Information

Three ways to source this part through PalmPartsSolution:

  1. Exact replacement — same Mitsubishi Electric catalog number, new or refurbished, tested and warrantied
  2. Form-fit-function equivalent — alternate revision or build that drops in without code changes
  3. Engineered migration — current-generation Mitsubishi Electric platform with documented conversion notes for the Servo Drives & Motors family

Contact our engineering team if you need help choosing between these tracks.

Technical Specifications

  • Model Number: HG-KN73JK
  • Series: MELSERVO J5
  • Rated Power Output: 750 W
  • Rated Voltage: 200 V
  • Rated Speed: 3000 rpm
  • Maximum Speed: 6000 rpm
  • Rated Torque: Approximately 2.4 N·m
  • Peak Torque: Approximately 7.2 N·m
  • Shaft: With key (JK type)
  • Brake: Yes, electromagnetic
  • Encoder: High-resolution absolute encoder
  • Protection Rating: IP65 (excluding shaft)
  • Cooling Method: Natural cooling
  • Mounting: Flange mount
  • Weight: Approximately 3.5 kg

Applications

The adaptability and precision of the Mitsubishi Electric HG-KN73JK servo motor make it an essential component across diverse advanced industrial applications, including:

  • CNC and Machine Tools: Supplying accurate and repeatable motion for cutting, shaping, and milling processes.
  • Robotic Joints and Actuators: Enabling fluid and precise movements in complex robotic systems.
  • Packaging and Labeling Machines: Ensuring high-speed and accurate product handling and labeling.
  • Industrial Conveyor Systems: Driving efficient and synchronized material transport.
  • Automated Pick-and-Place Machines: Facilitating rapid and precise component placement in assembly lines.

Why Choose the HG‑KN73JK?

Selecting the Mitsubishi Electric HG-KN73JK servo motor represents an investment in peak performance and lasting reliability for your automation requirements.

  • Dependable Torque Transmission: The resilient keyed shaft design guarantees maximum mechanical stability and effective power transfer.
  • Integrated Brake: Provides an essential safety feature, securing the load and maintaining position even during power loss or at standstill.
  • Versatile Fit: Its medium inertia characteristics make it exceptionally adaptable, supporting a wide range of motion control applications with varied load requirements.
  • Mitsubishi Precision: Optimized for seamless integration and superior performance when paired with MR-J5 servo drives, harnessing the full potential of Mitsubishi Electric's advanced motion control technology.
  • Long-Term Durability: Engineered for continuous industrial operation, the HG-KN73JK is built to endure demanding conditions, ensuring an extended operational lifespan and minimal downtime.

Availability & Shipping

  • In stock: HG‑KN73JK ready for immediate dispatch from our Florida warehouse.
  • Free USA shipping: FedEx Priority (2–5 business days) and UPS Ground (3–5 business days). Expedited options available at checkout.
  • Worldwide delivery: FedEx International Priority (1–5 days), UPS International Priority (3–5 days), and USPS International (5–10 days) — rates calculated at checkout.
  • Bulk pricing: Volume discounts on request — contact our sales team for quantity quotes.
  • Buy with confidence: Every HG‑KN73JK ships with a 1-Year PALM Parts warranty and a 30-day return window.
SUPPORT

Frequently Asked Questions — Mitsubishi Electric

The Mitsubishi HG-KN73JK servo motor has a rated power output of 750 W (0.75 kW).

Machine down? We ship parts the same day.

New, surplus, and refurbished Mitsubishi Electric inventory in stock. Request a quote or speak directly with an automation specialist for emergency sourcing.

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PALM Parts Solution operates as an independent industrial automation supplier and is not an authorized distributor or affiliate of any listed manufacturer or brand name. Manufacturer trademarks and product names are used solely for identification purposes. Original manufacturer warranties do not apply. All products sold by PALM Parts are backed by our own 1-year warranty.

Product Condition & Firmware

All products are sold as new unless stated otherwise. Original manufacturer packaging may show signs of handling, storage, or shelf wear. Date codes and series may vary from current factory production. PALM Parts does not guarantee the presence, version, or compatibility of any firmware on PLC or automation products.

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