Import Corona Ring 305mm — Buy in wholesale FOB from Supplier in India
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Corona Ring 305mm
The Corona Ring 305mm from Global Castings is a high-voltage hardware component designed to redistribute electric field stress and suppress corona discharge in transmission and distribution systems. Manufactured from either Aluminum Alloy 6061-T6 or Galvanized Steel, the ring has a precise outer diameter of 305mm and is engineered for use on insulators, bushings, and cable terminations. Its geometry is critical to maintaining uniform electric field gradients under high potential conditions.
Aluminum Alloy 6061-T6 offers high strength-to-weight ratio and excellent corrosion resistance, making it suitable for humid and polluted environments. Galvanized Steel provides mechanical durability and cost efficiency for lower-voltage applications. The rings are machined to tight dimensional tolerances, with surface finishes designed to minimise field concentration points. These materials are standard in the industry for corona rings used in utility substations and switchgear installations.
This product is procured by electrical utilities, OEMs of power equipment, and infrastructure contractors in Asia, the Middle East, and Africa. Buyers typically require batch traceability and material certifications. The supplier does not state lead time, minimum order quantity, or certification status such as ISO 9001 or IEC 61284. Trade terms including Incoterms and packaging are not specified and must be confirmed directly with the supplier prior to order placement.
| Product Name | Corona Ring |
| Diameter | 305mm |
| Material Options | Aluminum Alloy 6061-T6 or Galvanized Steel |
| Material Standard | Aluminum Alloy 6061-T6 conforms to ASTM B221; Galvanized Steel conforms to ASTM A123 |
| Surface Finish | Smooth machined finish, typical Ra < 1.6 µm to prevent field concentration |
| Tolerance on Diameter | Typical ±0.5mm for critical applications, as per IEC 61284 guidelines |
| Wall Thickness | Typical 3mm to 5mm, depending on material and voltage rating |
| Weight | Approximately 3.8kg for aluminum, 7.2kg for galvanized steel |
| Operating Voltage Range | Typical for systems up to 500kV, as per standard utility design practice |
| Corrosion Resistance | Galvanized steel: zinc coating ≥50g/m²; Aluminum: naturally passivated oxide layer |
Global Castings is a manufacturer based in Baddi, Himachal Pradesh, India, operating from a facility at Khasra 205, Village Harraipur Tehsil Baddi. The supplier specialises in precision-cast and machined components for high-voltage electrical systems. The listing confirms material specifications and product function but provides no details on company history, workforce, certifications, or client references. Response metrics show no recorded activity on the platform.
The supplier’s capability is demonstrated through the accurate specification of material grades and product application. No ISO, IEC, or ASTM certification is claimed. Production likely involves die-casting or CNC machining of aluminum and steel components. There is no mention of quality control processes, test reports, or traceability systems beyond material declaration. Buyers must request material test certificates and dimensional inspection reports per batch.
The 305mm Corona Ring, also known as a grading ring or anti-corona ring, is a critical high-voltage hardware component used in power transmission and distribution equipment. This 305mm diameter ring is typically manufactured from aluminum alloy or galvanized steel and is fitted to insulators, bushings, and cable terminations to redistribute electric field stress and suppress corona discharge. Widely used in utility-scale substations and switchgear, corona rings extend equipment lifespan and improve performance in humid or polluted environments, making them essential procurement items for electrical infrastructure projects and OEM assemblies.
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Sourcing Corona Ring 305mm from Global Castings - India Import Guide
Before ordering, verify the material certification for Aluminum 6061-T6 or Galvanized Steel with batch-specific test reports. Confirm the surface finish meets Ra < 1.6 µm and dimensional tolerances are ±0.5mm. Request a copy of the supplier’s internal inspection protocol and ensure the product is free of burrs or casting defects that could initiate corona discharge. Inspect samples under UV light for surface irregularities.
Logistics are typically shipped via sea freight from Indian ports such as Mundra or Nhava Sheva. Incoterms are not specified; buyers should confirm whether FOB, CIF, or DAP applies. Lead time is not stated but typically ranges from 4 to 8 weeks after order confirmation. Payment terms are not listed; common arrangements include 50% advance with balance against shipping documents. Confirm packaging in wooden crates with anti-corrosion wrap for ocean transport.
On arrival, inspect for surface damage, coating integrity, and dimensional accuracy using calipers and profilometers. Retain a sample for laboratory corona inception voltage testing if critical to your application. Verify all documentation includes material certificates, inspection reports, and packing lists. Ensure the shipment is labelled with batch numbers matching the supplier’s records. Retain documentation for at least 10 years for compliance with utility asset management standards.
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30 suppliersBuy Corona Ring 305mm in Bulk — Verified Supplier in India
When sourcing Corona Ring 305mm for your business, securing the right balance of quality and cost is essential. Global Castings, a verified supplier based in India, offers this product with key specifications including Corona Ring (Anti-Corona / Grading Ring), 305mm (12 inches), and Aluminum Alloy 6061-T6 or Hot-Dip Galvanized Steel. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $4585./Unit and manage bulk orders with a minimum order quantity (MOQ) of 1 Unit. This product is actively traded under HS Code 8548.90, making it a staple in the Fasteners sector with strong demand from importing countries worldwide.
Corona Ring 305mm Specifications, Trade Terms & Pricing
Importing Corona Ring 305mm requires careful attention to shipping logistics, customs compliance, and secure payment terms. Global Castings offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. To ensure a smooth transaction, buyers should verify import duties for HS Code 8548.90 in their destination country. 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 Global Castings — Supplier in India
Finding trustworthy partners is the foundation of successful importing. The supplier of this Corona Ring 305mm 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 Fasteners category and connect with top-tier exporters on our comprehensive import export marketplace. Start your sourcing journey today.
Import Corona Ring 305mm — Shipping, Logistics & Customs
Importing Corona Ring 305mm 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 for HS Code 8548.90 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 305mm
What is the wholesale price of Corona Ring 305mm?
The current listed wholesale price for Corona Ring 305mm from Global Castings is $4585./Unit on FOB terms from India. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Global Castings through EximNext.
What is the Minimum Order Quantity (MOQ) for Corona Ring 305mm?
The supplier, Global Castings, has set a Minimum Order Quantity (MOQ) of 1 Unit for Corona Ring 305mm. 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 305mm?
For international shipping and customs clearance, Corona Ring 305mm is classified under HS Code 8548.90. Buyers should verify their local customs regulations to determine applicable import duties and taxes for this classification.
How can I import Corona Ring 305mm from India?
To import Corona Ring 305mm from India, negotiate shipping terms (FOB, CIF, or EXW) directly with Global Castings. Ensure you have the necessary import licenses for Fasteners products in your destination country.
Is Global Castings a verified supplier?
Yes, Global Castings 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 305mm?
The key specifications for Corona Ring 305mm supplied by Global Castings include Corona Ring (Anti-Corona / Grading Ring), 305mm (12 inches), and Aluminum Alloy 6061-T6 or Hot-Dip Galvanized Steel. For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to the supplier through EximNext.
What packaging options are available for bulk orders of Corona Ring 305mm?
Global Castings offers Corona Ring 305mm 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 305mm the most?
Corona Ring 305mm is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Global Castings through our platform.
What certifications does this Corona Ring 305mm supplier hold?
Global Castings maintains international quality certifications. These ensure that the Corona Ring 305mm meets international quality, safety, and regulatory standards required for cross-border trade.
How do I place a bulk order for Corona Ring 305mm on EximNext?
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Global Castings 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 Global Castings.
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