Here is an expanded introduction to the Mitsubishi Low-Inertia, Small-Capacity Servo Motor HG-KN73B in English:

The Mitsubishi HG-KN73B is a high-performance servo motor belonging to the low-inertia, small-capacity series, specifically engineered for applications requiring rapid acceleration and deceleration, precise positioning, and compact design. With a rated output of 0.4 kW and a rated speed of 3,000 r/min, this motor delivers reliable and efficient performance for a wide range of industrial automation tasks.

One of its standout features is the ability to reach a maximum speed of 6,000 r/min, enabling high-speed operation in demanding applications. The motor provides a maximum torque of 350% of the rated torque, which is exclusive to the HG-KR series, ensuring exceptional torque output even in high-speed rotation ranges. This characteristic makes it ideal for applications that require both high speed and high torque in a compact form factor.

The HG-KN73B is equipped with a high-resolution absolute position encoder offering 4,194,304 pulses per revolution (22-bit resolution). This advanced encoder enables ultra-precise positioning and smooth motion control, significantly improving the accuracy and repeatability of automation systems.

In terms of environmental protection, the motor is built with an IP65 rating (applicable to HG-KR, HG-MR, HG-RR, and HG-UR series), providing excellent resistance against dust and water ingress. This enhances its durability and reliability in harsh industrial environments, such as those exposed to coolant, oil mist, or debris.

The motor comes standard with an oil seal (see notes 1, 2, and 3 for compatibility details), which helps prevent lubricant leakage and prolongs service life. However, it is important to note that the oil seal is not included when the motor is used with a speed reducer. Additionally, the HG-KN73B does not come with an electromagnetic brake, making it suitable for applications where braking is managed externally or not required.

The motor operates on a 200V power supply and is designed to work seamlessly with Mitsubishi's advanced servo drive systems. Its compact, low-inertia design makes it an excellent choice for high-speed pick-and-place machines, assembly equipment, labeling machines, and other precision motion control applications where space is limited and dynamic response is critical.