Mitsubishi Electric HG-JR11K1M4B Servo Motor for Dynamic Applications

Mitsubishi Electric HG-JR11K1M4B: Redefining Precision and Power in a Compact Servo Motor Solution

In the relentless pursuit of industrial automation excellence, the performance of core components dictates the overall efficiency, accuracy, and reliability of the entire system. At the heart of many high-performance motion control applications lies the servo motor, a critical actuator that converts electrical signals into precise mechanical movement. Mitsubishi Electric, a global leader in automation technology, presents the HG-JR11K1M4B, a low-inertia, 1.0 kW servo motor that stands as a testament to engineering innovation. This motor is not merely a component; it is a sophisticated solution designed for applications demanding high responsiveness, exceptional stability, and seamless integration within advanced industrial networks.

The HG-JR11K1M4B belongs to the acclaimed J4 series, representing the fourth generation of Mitsubishi's servo technology. It is engineered to deliver a perfect synergy of high speed and high torque, characteristics that are paramount in modern manufacturing environments where cycle times are continuously pushed to their limits. This model is specifically tailored for dynamic applications such as high-speed pick-and-place robots, precision CNC machining centers, advanced packaging machinery, and automated assembly lines where rapid acceleration and deceleration are routine.

Unpacking the Core Design Philosophy: Low Inertia for High Dynamic Response

The term "low inertia" is central to understanding the HG-JR11K1M4B's performance advantages. Inertia, in rotational terms, is a measure of a body's resistance to changes in its rotational velocity. A motor with low rotor inertia can accelerate and decelerate much more rapidly than a motor with high rotor inertia of the same power rating. The HG-JR11K1M4B is meticulously designed with a lightweight, yet robust rotor structure, minimizing its moment of inertia.

This design choice yields profound benefits:

• Reduced Cycle Times: The motor reaches its target speed and returns to a stop in significantly less time, directly increasing the number of operational cycles per minute.

• Improved Settling Time: In positioning applications, the motor can stabilize at its commanded position more quickly and with less overshoot, enhancing the precision of the entire process.

• Reduced Load on the Servo Amplifier: The lower inertia reduces the torque required for acceleration, allowing for optimal performance even from a compact servo drive, such as its natural partner, the MR-J4-11KB-RJ.

Exceptional Performance and Robust Construction

The HG-JR11K1M4B is built to deliver consistent power in demanding conditions. With a rated output of 1.0 kW and a rated torque of 2.39 Nm, it provides substantial force for its compact frame size. Its maximum speed of 6000 rpm allows for high-velocity operations, which is essential for processes like spindle control or high-speed conveyor indexing. Furthermore, it boasts an impressive maximum instantaneous torque of 7.16 Nm, providing a substantial reserve for overcoming transient load spikes or breaking through momentary resistance without losing step or accuracy.

Durability is a non-negotiable feature in industrial settings. The motor features a high-resolution 24-bit encoder (16,777,216 pulses/rev). This extraordinary resolution is the cornerstone of its precision, providing the servo drive with exceptionally fine data on rotor position, velocity, and torque. This results in smoother rotation, even at very low speeds, and unparalleled positioning accuracy. The motor's construction includes IP67-level protection (IEC standard), making it resistant to dust and capable of withstanding immersion in water up to 1 meter for 30 minutes. This makes it suitable for environments that require washdowns, such as in food and beverage or pharmaceutical manufacturing.

Seamless System Integration and Advanced Control Features

A key strength of the HG-JR11K1M4B is its design as part of a complete system. When paired with the Mitsubishi MR-J4 series servo amplifiers, it creates a motion control ecosystem that is greater than the sum of its parts. The system supports a wide array of industry-standard field networks, including CC-Link IE Field, CC-Link IE Field Basic, PROFINET, EtherCAT, and EtherNet/IP. This multi-network compatibility future-proofs your investment and simplifies integration into both new and existing factory automation architectures.

Beyond basic motion, the motor and drive system incorporates advanced functions that simplify engineering and enhance performance:

• Advanced Vibration Suppression Control II: This feature automatically identifies the frequency of machine vibration and applies filters to suppress it. This is crucial for systems with long arms or flexible components, reducing settling time and preventing mechanical wear.

• Adaptive Filter II: It automatically tunes the servo system to counteract resonance, a common cause of noise and instability, ensuring smooth operation across a wide range of speeds.

• One-Touch Tuning: This simplifies the setup process, allowing the drive to automatically configure optimal gain parameters for the connected mechanical system, drastically reducing commissioning time.

Energy Efficiency and Maintenance Considerations

In an era focused on sustainable manufacturing, the HG-JR11K1M4B addresses energy consumption head-on. Its high-efficiency design minimizes electrical losses, converting more input power into useful mechanical work. This not only reduces operational costs but also lessens the thermal load, contributing to the motor's long-term reliability. The use of an absolute encoder eliminates the need for battery backup for position retention, simplifying maintenance and removing a potential point of failure. The robust design and high-quality bearings contribute to a long service life with minimal maintenance requirements, ensuring maximum uptime.

Technical Specifications at a Glance

The following table summarizes the key technical parameters of the HG-JR11K1M4B servo motor:

Conclusion: The Intelligent Choice for Demanding Automation

The Mitsubishi Electric HG-JR11K1M4B is far more than just a 1.0 kW servo motor. It is a highly refined, intelligent motion solution engineered for the challenges of contemporary industrial automation. Its low-inertia design enables blistering acceleration, its high-resolution encoder guarantees pinpoint accuracy, and its rugged IP67 construction ensures unwavering reliability in harsh environments. When integrated into the Mitsubishi J4 ecosystem, it provides a level of network integration, advanced vibration control, and operational efficiency that is second to none. For engineers and system integrators seeking to build faster, more precise, and more reliable machinery, the HG-JR11K1M4B represents a strategic investment in performance and productivity, delivering a compelling return through enhanced throughput and reduced downtime.