Solid Insulated Ring Main Unit

With 20 years of experience in high-voltage switchgear manufacturing, our factory specializes in the development and production of solid insulated ring main unit with environmentally friendly solid insulation technology and SF6-free design. Equipped with a digital intelligent workshop and advanced CNC sheet metal processing equipment, we independently complete cabinet manufacturing, component assembly, insulation casting, and withstand voltage testing.

Every solid insulated ring main unit undergoes strict three-stage quality control procedures, including self-inspection, mutual inspection, and professional inspection. Each unit receives comprehensive electrical performance testing before shipment and supports third-party inspection and acceptance. With a 12-month complete warranty, our products meet the requirements of modern environmentally friendly power distribution networks.

Our factory maintains an annual output value of over RMB 200 million and has long-term cooperation experience with domestic power companies and renewable energy projects. The solid insulated ring main unit adopts solid insulation technology without gas leakage risk, making it an ideal solution for overseas urban power distribution upgrades, residential communities, industrial parks, and green energy projects.

We provide comprehensive OEM and ODM customization services. Any specification of solid insulated ring main unit can be customized according to customer drawings, technical requirements, or prototypes, including circuit configuration, cabinet dimensions, and enclosure colors. Standard models can be delivered within 10 days, while customized models generally require around 30 days. Production progress can be updated through photos and videos during manufacturing.

We support EXW, FOB, and DDP trade terms, accept USD and RMB payments, and provide preferential pricing solutions for overseas distributors with large-volume orders. Direct factory supply helps customers reduce procurement costs.

The solid insulated ring main unit is packed in independent fumigated wooden cases. Insulation components are separately protected with high-density foam materials, while cabinet corners are reinforced with metal protectors to prevent collision damage.

The outer layer is sealed with waterproof PE film to prevent moisture and salt spray during ocean transportation. Each shipment includes insulation test reports and product certificates. Logistics tracking is available throughout transportation.

If accessories are damaged after arrival, replacement parts can be provided free of charge, and related replacement costs will be handled according to responsibility.

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