Import Corona Ring — Buy in wholesale FOB from Supplier in China
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Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. manufactures a Corona Ring, an annular metal component mounted on the ends of bushings and insulator strings to suppress corona discharge in high‑voltage transmission lines. The ring’s smooth circular shape spreads the electric field, keeping the potential gradient below the critical destruction voltage of roughly 30 kV/cm. The supplier notes that aluminium rings are typically installed on lines above 230 kV and on both ends of insulators for 500 kV systems.
In the industry, corona rings are usually fabricated from aluminium alloy, often 6061‑T6, because of its conductivity and corrosion resistance. Standard outer diameters range from 250 mm to 350 mm, with a typical weight of 4 kg for a 300 mm ring. Surface treatment is commonly anodised to withstand outdoor exposure, and the rings are designed to meet IEC 60071 standards for high‑voltage equipment. These typical specifications complement the supplier’s description of the product’s function and recommended voltage levels.
Transmission utilities and line‑construction contractors purchase the rings to improve line efficiency and reduce power loss caused by corona. The supplier does not list specific packaging, lead‑time or payment terms, so buyers should request those details directly. Confirm the material grade, dimensional tolerances and any required certifications before finalising a purchase to ensure compatibility with existing infrastructure.
| Intended voltage (typical) | >230 kV (recommended for aluminium rings on lines above this level) |
| Material (as supplied) | Metal (specific alloy not disclosed) |
| Typical material grade | Aluminium 6061‑T6 (typical for corona rings) |
| Function | Distributes electric field to reduce corona discharge |
| Critical electric field (typical) | 30 kV/cm (approximate threshold) |
| Typical outer diameter | 300 mm (typical range 250‑350 mm) |
| Typical weight | 4 kg (typical for 300 mm aluminium ring) |
| Surface treatment (typical) | Anodised coating (typical for outdoor use) |
| Typical packaging | Pallets or bulk crates (typical for industrial components) |
| Typical standard compliance | IEC 60071 (typical for high‑voltage accessories) |
Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. is based at No.189, Hengshan Street, Shijiazhuang High‑Tech Zone, Hebei Province, China (postal code 50035). The company appears under the harbour trust tier, indicating a basic verification level on the platform. Its core business is the manufacture of electric power fittings, including anti‑corona rings for high‑voltage applications.
The supplier’s public profile does not provide a response rate or recent communication metrics, and no specific certifications are listed. It emphasizes the technical role of its corona rings in reducing power loss, but buyers should request any quality management certificates, such as ISO 9001, and verify production capacity before committing to large orders.
| 企业类型 | Supplier |
| 成立年份 | Contact Supplier |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
Sourcing Corona Ring from Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. - China Import Guide
Verify the exact aluminium alloy, outer diameter and surface treatment before confirming the order. Request any applicable certifications, such as IEC 60071 compliance or ISO 9001, and obtain a mill test certificate that documents material properties and dimensions. If custom dimensions are required, obtain a written engineering drawing and agree on the tolerance limits.
Discuss logistics early: ask the supplier to confirm the preferred incoterm, typical packaging format and expected lead‑time for the quantity you need. Payment is usually arranged by T/T, but you may negotiate a letter of credit or escrow arrangement to protect both parties. Clarify whether the supplier can provide freight forwarding assistance or if you will arrange shipping independently.
Plan a quality inspection strategy that includes visual checks for anodised coating, dimensional verification with calipers, and electrical testing to confirm corona suppression performance. Request a factory‑acceptance test report and a certificate of conformity with IEC 60071. Ensure that the commercial invoice, packing list and certificate of origin are prepared for customs clearance in your importing country.
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30 suppliersBuy Corona Ring in Bulk — Verified Supplier in China
When sourcing Corona Ring for your business, securing the right balance of quality and cost is essential. Shijiazhuang Huaneng Electric Power Fitting Co., Ltd., a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $1/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Slip Rings sector with strong demand from importing countries worldwide.
Corona Ring Specifications, Trade Terms & Pricing
Importing Corona Ring requires careful attention to shipping logistics, customs compliance, and secure payment terms. Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading global B2B marketplace designed to make cross-border trade secure and efficient.
About Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. — Supplier in China
Finding trustworthy partners is the foundation of successful importing. The supplier of this Corona Ring has been verified on our platform. Whether you are a distributor, wholesaler, or procurement manager, you can request a free quotation, ask for product samples, and finalize your bulk purchase with confidence. EximNext hosts thousands of verified manufacturers and exporters across 200+ countries. Explore similar products in the Slip Rings category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Corona Ring — Shipping, Logistics & Customs
Importing Corona Ring requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
Frequently Asked Questions About Corona Ring
What is the wholesale price of Corona Ring?
The current listed wholesale price for Corona Ring from Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. is $1/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. through EximNext.
What is the Minimum Order Quantity (MOQ) for Corona Ring?
The supplier, Shijiazhuang Huaneng Electric Power Fitting Co., Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Corona Ring. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
What is the HS Code for Corona Ring?
The HS Code classification for Corona Ring depends on the specific grade and form. Contact Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. through EximNext for the exact HS Code and customs documentation required for your destination country.
How can I import Corona Ring from China?
To import Corona Ring from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Shijiazhuang Huaneng Electric Power Fitting Co., Ltd.. Ensure you have the necessary import licenses for Slip Rings products in your destination country.
Is Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. a verified supplier?
Yes, Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
What are the key specifications of Corona Ring?
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. through EximNext.
What packaging options are available for bulk orders of Corona Ring?
Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. offers Corona Ring with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Which countries import Corona Ring the most?
Corona Ring is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. through our platform.
What certifications does this Corona Ring supplier hold?
Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. maintains international quality certifications. These ensure that the Corona Ring meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Corona Ring on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Shijiazhuang Huaneng Electric Power Fitting Co., Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
What payment methods are accepted?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services. Confirm accepted terms directly with Shijiazhuang Huaneng Electric Power Fitting Co., Ltd..
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