{"product_id":"mitsubishi-electric-hg-kn43bj-s100-0-4kw-ac-servo-motor-with-brake-oil-seal","title":"Mitsubishi Electric HG-KN43BJ-S100 0.4kW AC Servo Motor (With Brake \u0026 Oil Seal)","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe HG-KN43BJ-S100 AC Servo Motor represents a high-performance solution within the Mitsubishi MELSERVO-JN series, specifically engineered for precision motion control in automated manufacturing. This 400W low-inertia motor delivers exceptional dynamic response, making it ideal for high-speed indexing, material handling, and small-scale robotics. Unlike standard motors, this unit integrates an electromagnetic brake to prevent vertical axis drop during power loss and an industrial-grade oil seal to protect internal windings from lubricant ingress. With a rated speed of 3000 RPM and the ability to peak at 6000 RPM, the motor provides the high-frequency agility required for modern production cycles. The totally enclosed, natural cooling structure achieves an IP65 rating, ensuring reliable torque delivery even in environments prone to dust and moisture.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Configuration\u003c\/h2\u003e\n\u003ch3\u003eModel Code Breakdown\u003c\/h3\u003e\n\u003cp\u003eThe HG-KN43BJ-S100 follows a precise technical nomenclature that defines its hardware capabilities:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHG-KN\u003c\/strong\u003e: Identifies the low-inertia, high-performance AC servo motor series.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e4\u003c\/strong\u003e: Denotes the rated output capacity of 0.4 kW (400 Watts).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e3\u003c\/strong\u003e: Indicates the base rated speed of 3000 r\/min.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eB\u003c\/strong\u003e: Signals the factory-installed electromagnetic brake for holding and safety functions.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eJ\u003c\/strong\u003e: Specifies the inclusion of a specialized oil seal for enhanced protection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eS100\u003c\/strong\u003e: Represents the specific shaft end or customized mounting specification within the sub-series.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHG-KN43BJ-S100\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated Output\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.4 kW (400W)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated Torque\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.3 N•m\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated \/ Max Speed\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3000 r\/min \/ 6000 r\/min\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.6 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrake Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eElectromagnetic (24V DC Holding)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP65 (excluding shaft through-portion)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInsulation Class\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e130 (Class B)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAmbient Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0°C to 40°C (Operation)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVibration Resistance\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e49 m\/s² (X, Y directions)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eUnit Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.9 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.0 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch2\u003eInstallation and Maintenance Guide\u003c\/h2\u003e\n\u003cp\u003eDuring installation, ensure the motor shaft alignment stays within the specified tolerance to prevent premature bearing wear or encoder vibration. Since this model features an oil seal (J-suffix), technicians must maintain a proper oil level at the gearbox interface; however, avoid complete immersion of the seal to prevent pressure-induced leakage.\u003c\/p\u003e\n\u003cp\u003eWhen wiring the electromagnetic brake, use a dedicated 24V DC power supply independent of the motor's power lines to prevent electronic noise interference. For cable management, observe a minimum bending radius of at least 10 times the cable diameter to protect the internal high-resolution encoder leads. Regularly inspect the oil seal for signs of brittleness or thermal degradation, especially when operating near the 40°C ambient limit.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eEngineering Advantages\u003c\/h2\u003e\n\u003ch3\u003eHigh Dynamic Response\u003c\/h3\u003e\n\u003cp\u003eThe low-inertia design of the HG-KN series allows for rapid acceleration and deceleration phases. This capability significantly reduces cycle times in pick-and-place applications compared to standard inertia motors.\u003c\/p\u003e\n\u003ch3\u003eSuperior Environmental Protection\u003c\/h3\u003e\n\u003cp\u003eThe combination of an IP65-rated enclosure and a dedicated oil seal makes the HG-KN43BJ-S100 resilient against oil mist and fine particulate matter. This engineering choice ensures long-term operational stability in CNC machining centers and textile machinery where contaminants are prevalent.\u003c\/p\u003e\n\u003ch3\u003eSafety-Integrated Braking\u003c\/h3\u003e\n\u003cp\u003eThe \"B\" suffix signifies a fail-safe electromagnetic brake. This component provides critical safety for Z-axis (vertical) applications, instantly locking the load in position during emergency stops or power interruptions to protect both the equipment and the operator.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eDelivery and Logistics\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDelivery Time\u003c\/strong\u003e: 3-5 days when payment finish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShipping Partners\u003c\/strong\u003e: BY DHL \/ FEDEX \/ UPS.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e: Brand New, Original Factory Sealed.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical FAQs\u003c\/h2\u003e\n\u003cp\u003eQ1: Does the HG-KN43BJ-S100 require a specific servo amplifier?\u003c\/p\u003e\n\u003cp\u003eA1: Yes, this motor is designed to pair with the Mitsubishi MELSERVO-JN series amplifiers (e.g., MR-JN-40A). Matching the motor with the correct amplifier ensures optimal tuning and protection of the internal encoder.\u003c\/p\u003e\n\u003cp\u003eQ2: Can the electromagnetic brake be used for decelerating the load?\u003c\/p\u003e\n\u003cp\u003eA2: No. The brake is a holding brake designed to keep the shaft stationary when power is off. Using it to stop a rotating load will cause rapid wear of the friction plates and eventual brake failure.\u003c\/p\u003e\n\u003cp\u003eQ3: What is the benefit of the \"J\" oil seal in this specific motor?\u003c\/p\u003e\n\u003cp\u003eA3: The oil seal prevents gear oil from the connected reduction gearbox from entering the motor housing. This is essential for motors mounted directly to oil-lubricated gearheads to prevent electrical shorts and encoder contamination.\u003c\/p\u003e\n\u003cp\u003eQ4: Is it possible to operate this motor at altitudes higher than 2000m?\u003c\/p\u003e\n\u003cp\u003eA4: Altitudes above 2000m result in thinner air and reduced cooling efficiency. Operation is possible but requires a derating of the output torque and current. Please consult our technical team for specific derating curves.\u003c\/p\u003e","brand":"Mitsubishi","offers":[{"title":"Default Title","offer_id":45935179727021,"sku":"HG-KN43BJ-S100","price":499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/HG-KN43BJ-S100-1.jpg?v=1776920032","url":"https:\/\/www.maxwellplc.com\/products\/mitsubishi-electric-hg-kn43bj-s100-0-4kw-ac-servo-motor-with-brake-oil-seal","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}