Product Description
The HC-KFS43G1K112 is a 400W, 200VAC, 3-phase AC servo motor with a 1/12 gear ratio, delivering 1.3 Nm rated torque at 3000 RPM. It features a 17-bit absolute encoder for precise positioning, a 60x60 mm flange, IP55 protection, a keyed shaft, and weighs 4.54 kg, making it ideal for efficient and accurate automation applications.
Is Your Device Showing These Signs?
The Mitsubishi HC-KFS43G1K112 servo motor commonly experiences issues such as resolver feedback errors, often indicated by alarms related to position deviation or velocity fluctuations. Technicians address these faults by inspecting the resolver signal integrity, checking for wiring harness damage, and verifying proper grounding to mitigate electrical noise. Overheating due to excessive load or insufficient cooling is another frequent problem, requiring investigation of the motor's thermal characteristics, load inertia ratio, and ambient temperature. Furthermore, bearing failures manifest as unusual noises or vibrations, necessitating bearing replacement and shaft alignment to ensure smooth operation and prevent rotor damage.
Technical specifications
The HC-KFS43G1K112 is a 400W AC servo motor with a 1/12 gear ratio, providing 1.3 Nm torque at 3000 RPM. It includes a 17-bit absolute encoder, 60x60 mm flange, IP55 protection, keyed shaft, and weighs 4.54 kg.
Our Repair Process for the
HC-KFS43G1K112
Our repair process for the Mitsubishi HC-KFS43G1K112 servo motor begins with a comprehensive diagnostic assessment to identify the root cause of the reported issue, such as resolver feedback errors, overheating, or bearing failures. Technicians meticulously inspect the resolver signal integrity, wiring harness condition, and grounding connections to resolve position deviation or velocity fluctuation alarms. Overheating issues are addressed by evaluating the motor's thermal characteristics, load inertia ratio, and ambient temperature, with adjustments made to optimize cooling and reduce excessive load. Bearing failures necessitate immediate bearing replacement and precise shaft alignment to eliminate unusual noises or vibrations, ensuring smooth operation and preventing potential rotor damage.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

















