Aluminum Corona Shields

aluminum corona shields

When it comes to aluminum corona shields production, we get that you need long term partners, not just suppliers.

HIGHV, as a leading manufacturer specialized in custom aluminum corona shields with a fast and efficient method for global users.

Check out the following buyer’s guide for high voltage test engineers, operators and beginners, we’ll offer you the precision corona shields with 24/7 custom service to fit your drawing ideas and plans.

Contact our HIGHV team today to get your corona shields and details.

What Is A Corona Shield

Series resonant system produces high voltage, which cause the non-uniform local electric field.

The function of the corona shield is to make the local electric field be uniform.

The corona shields are used in high voltage testing equipment and power systems (substations, high voltage bushings, AC/DC voltage systems, circuit breakers, etc.) and are mainly made of aluminum alloy and copper.

Generally the corona shields need to be polished bright to achieve more smooth and no burr surface finish for ensuring better corona shielding effect.

Aluminum Corona Shields Technical Parameters

Product NameAluminum Corona Shields
Raw Material

Grade Aluminum Alloy 3A21/1060/6061/6063

Matching FastenersASTM 304 Stainless Steel Or Hot Galvanized Steel
Surface FinishPolishing Silvery Bright, Ra3.2 Roughness
Other Surface TreatmentAnodic Oxidation/Galvanized/Color Painting/Coating Insulating Varnish
Aluminum Plate Wall Thickness2.0mm-10.0mm
OEM/ODMAs client’s drawings requirments
Middle Support Plate And PartAluminum material or It can be customized as customer drawing requirement
Inner Diameter Minimum 20mm
Outer Diameter Maximum 16000mm
Production Process CNC Machining and Milling, Laser Cutting, Bending, Lathe Turning, Welding, Spinning, Drilling, Threading, Riveting, Roll Forming, etc
Operating Voltage170kV-4200kV
Drawings SupportCAD/PROE/UG/SOLIDWORKS, etc
Ring Mould At stock or as your drawing new design and production
Corona Ring PackagingCarton Box/Wooden Pallet/Wooden Case
Loading PortShanghai/Ningbo/Any Other Port In China

What Materials Can Be Used For Aluminum Corona Shields

It depends on aluminum corona shields design and manufacturing process.

The custom aluminum corona shields are usually made from 6061 or 6063 plate.

In some special conditions, the stainless steel materials will be used for production.


Q1.Why Choose Us As Your Aluminum Corona Shields Supplier?

Over 30 Years R&D Experience

HIGHV owned advanced processing production equipments which can support you competitive price, high quality, in time delivery and good service. We have strong manufacturing capability, our automatic lathes, CNC machining centers, bending machines, welding machines and pressure die casting equipments plus auxiliary equipment like milling machine, grinding machine, wire EDM and the cooperation of our partners, we are able to support every different corona shields regardless of the samples or mass production.

Powerful Technical Support

Hard work of our quality control and technical design engineers team guaranteed the stable quality and good service.

OEM/ODM Service

HIGHV is professional at independent development and design. Our professional engineers team are skilled at AUTO CAD, PROE, SOLID WORKS and UG software. We are able to design, develop, produce and deliver your corona shields according to your detailed drawings, samples or just an idea.

Flexible Payment Term Support

Corona shield sample order is available. For small sample orders, in order to save the bank charge for customers and seller, West Union, Money Gram are well recommended.
For mass production, normally our company need 50% TT deposit before new production, and the 50% TT balance payment before shipment.

Our Warranty:

Once you receive the cargo, please open the packaging and check all cargo within 7 days. If there are any quality problems of shields, you just provide the photos of damaged them, then we will provide free ones for you. According to the number of products, we will provide easily damaged parts for free. We also can provide technical support if you need. Why not send inquiries to us here for saving your time and money.

Q2.How To Buy Aluminum Corona Shields?

1. Consult: We will recommend the most suitable solutions to you after being informed by your inquiries.

2. Quotation: We will offer you with our detail quotation according to the consulted corona shield. You will get the most suitable specifications, the full support and the affordable price.

3. Process Evaluation: Buyers and our side carefully evaluate and discuss all the details (technical parameters, specifications and business terms) of the order to exclude any misunderstanding.

4. Placing Order: If you have no doubt, we will send you the proforma invoice, and then we will sign a contract with you.

5. Production: We will arrange new production immediately once receiving your signed purchasing contract and payment deposit. The coming news about production will be updated and informed to the buyer during the shield production.

6. Quality Control: The spirit of our company is that safety is the foundation of production and quality makes customers. We pay more attention to quality support, supply scope, inspection, testing standard, shipment packing, after-sales service.

7. Delivery: We will arrange the delivery as the terms in the contract after the confirmation by the buyer.

8. Custom Clearance: We will supply and deliver all the necessary shipping documents to the aluminum corona shield buyer and ensure a smooth customs clearance.

9. Support and Service: We will offer professional technical support and free service by Phone, Email, Skype, WhatsApp, Tidio Online Live Chat, Remote Service. We also have door-to-door service in some areas.

Q3.What Are Aluminum Corona Shields Surface Treatment?

Usually the polishing silvery bright is the final main surface finish of aluminum corona shields not only for the indoor high voltage bushings but also for the outdoor testing issues.

The surface finish roughness is Ra3.2. The corona shield production process is according to DIN ISO2768-MK general tolerances.

Other manufacturing standard includes general tolerances for welded constructions, tolerances for lengths, angles, tolerances for shape and position, etc will be in accordance with EN ISO 13920-B-F.

Other surface treatment can be done here. Such as anodic oxidation, galvanized, color painting and coating insulating varnish.

Read More What Are Corona Rings And Shield Parts Surface Treatment?

Q4.What Is Aluminum Corona Shield Packaging?

HIGHV has professional packaging team who can adopt developed packaging technology and packaging style to ensure the corona shields packaging quality.

Standard sea packing, the corona shields packing can be done by wooden case and carton box.

In addition, clear labels are tagged on the outside of the packages for easy identification of the corona shields measurements and quality information.

Q5.What Is MOQ Of Aluminum Corona Shield?

If the corona shield mould is ready on stock, the MOQ will be less. 1 piece of shield is workable.

If you need customized one, the trial order MOQ will be negotiated.

Q6.Can Your Team Help Us The New Corona Shield Design?

If designing the aluminum corona shields for your project still seems overly complex, the best thing to do is consult an design and manufacturing expert.

HIGHV is one such specialist, with years of experience creating corona shields for a range of customers.

We are able to design, develop, produce and deliver aluminum corona shields according to customer detailed drawings, samples or just an idea.

Read More Aluminum Corona Shielding Spheres Design For 460kV Terminal Bushing

Why Not Start Your Aluminum Corona Shields Project Today

Highv is one of the professional aluminum corona shields suppliers in China.

Our project manager and professional team engineers are very experienced of high quality corona shields and corona shielding parts for various industries, such as high voltage laboratory, high voltage capacitor banks, bushings, GIS, power transformers and different types of end-use components.

From aluminum plate raw materials to custom corona shields, here we can help you all corona shielding solutions.

Need a quotation or technical support of aluminum corona shields, call us or email us to get more information for your projects.