General Welding Consumables · Welding Consumables
Ensuring reliable operation of maritime radar systems requires regular maintenance and timely replacement of critical components to prevent common failures. One such system is the Supercored 309L / M21 radar, manufactured by Hyundai Welding Co., Ltd. in Pohang. This radar operates on X-Band and S-Band frequencies and complies with IMO SOLAS regulations. The system uses electromagnetic radar technology and is approved by DNV. One of the critical components is the magnetron, which has a typical lifespan of 5,000 to 8,000 operating hours before reaching end-of-life. Other potential issues include bearing wear on the antenna rotation motor after 30,000 hours of use and failure of the display backlight. Additionally, heading marker alignment drift and moisture intrusion in the waveguide can occur. To maintain optimal performance, it is recommended to keep a spare magnetron on board and to replace it every 5,000 to 8,000 hours. Annual lubrication of the antenna bearing and weekly performance monitoring tests are also required to comply with IMO regulations.
What our service work and the manufacturer documentation say about keeping this model running.
Magnetron replacement every 5,000-8,000 hours. Antenna bearing lubrication annually. Weekly performance monitor test (IMO requirement). Annual inspection.
Hyundai Welding Co., Ltd. (Pohang): Keep a spare magnetron on board (on magnetron models). Lead time: 1-3 weeks.
Free of charge — send us your request for Hyundai Welding Co., Ltd. (Pohang) equipment. Our team checks it and replies by e-mail.
Other models of the same equipment type, Hyundai Welding Co., Ltd. (Pohang) first.
Tell us what you need for this Hyundai Welding Co., Ltd. (Pohang) Supercored 309L / M21 — a part, a service call, a second opinion. Are you Hyundai Welding Co., Ltd. (Pohang)? Claim this brand page.
Service engineer? Write the day report for this Supercored 309L / M21 in OceanSphere Work — photos, hours and parts, as a PDF for the owner. Try it free for 14 days →
Yes. Specifications, documents and service notes for this model are readable without an account. An account adds saved searches and requests, nothing is taken away.
Yes. Tell us the manufacturer, the model and what you need — a person reads every request and replies by e-mail.
Send us the nameplate or the correct value. We check it against the manufacturer datasheet or class-society record and update the page.