CORONA RINGS/GRADING RINGS/CORONA SHIELDS/TOROIDS/BALLS manufacturing

1. Transmission line Insulators Corona Rings/Grading rings/Guard rings Protection
2. HV Surge Arresters(lightning Arresters)Aluminum Tube rings
3. High Voltage Capacitor Banks Corona Shields/Grading rings
4. GIS (Gas Insulated Switchgear) Corona Rings/Grading rings
5. Power transformer/High Voltage current transformers Corona shields

6. GIS (gas insulated switchgear) Aluminum Conductors

Corona rings are used primarily as a control, or grading component, in the electrical utility industry for high voltage applications such as switches, substation bus hardware, and dead end assemblies on transmission lines.
Such ring devices of various sizes and configurations act to reduce radio and television inteference which is a direct result of corona, a phenomenon created when the potential of a conductor in the air is raised to such a value that the dielectric strength of the surrounding air is exceeded.

Material：Aluminun(3.3206 ALMg Si 0,5 DIN 9107(EN AW-6060) F22，aluminum 6063)& Steel & Copper

Technological Process：Aluminum Die-casting/Aluminum Tube Bending

Surface treatment：Polishing

Application：Transmission Line insulators/HV Lightning Arresters,Surge Arresters/HV Transformers/GIS/HV Testing equipment......

Aluminum Alloy Flanges Manufacturing

Application：HV Cable Accessories Terminations/HV Transformers/HV BUSHINGS/HV lightning Arresters

Processing technical：Aluminum Low Pressure Die-Casting、Aluminum alloy Gravity Casting、Aluminum Forging.

Material：G-ALSi7Mg，G-ALSi8Cu3

Surface treatment：Anodizing、paint coating

Galvanized/Stainless Hexagon Bolts&Nuts Manufacturing

for Electric Tower Construction and Power Transmission Line

Composite Insulators OEM service（Also names polymer insulators、silicone rubber long rod insulators）
1、Suspension insulator（Long rod, tension insulator, dead end insulator）
10kV to 1000kV
2、Line post insulator 11kV to 245kV
3、Hollow insulator 33kV to 800kV
4、Station post insulator 11kV to 800kV
5、Pin type insulator 11kV to 66kV
6、Hybrid station post insulator 66kV to 1000kV (porcelain core silicone rubber housing)
7、Railway insulator
8、M.V Epoxy Resin Bushing 11kV to 36kV

1、Forging Metal Fittings，Hot Dip Galvanized，Steel-ASTM Grade 1045 or 40Cr.
Tensile Strength including：40KN,70KN,90KN,100KN,120KN,160KN,210KN,300KN,420KN,530 KN,640 KN,760 KN,840 KN,1000 KN.
Matching for AC 10KV~1000KV (DC±800KV) Composite Insulator.
Regular Type： Ball&Socket, Tongue&Clevis, Cap&Pin, "Y" clevis, Eye, Flange Fittings...
Socket Design conforms to IEC16/IEC20
Quality Standard：
ISO 9001:2000 GB/T3077-1999, IEC61466, IEC60120, IS3703, IEC61109, IEC 60471.

Hot Dip Galvanization Standard Conforms to ：
SR EN 10083/1, IEC60383 Thickness： 86~140 μm Zn

Regular Core Rod Hole Diameter：Ø12mm, Ø16mm, Ø18mm, Ø20mm, Ø24mm, Ø30mm, Ø34mm, Ø36mm, Ø40mm, Ø50mm, Ø60mm.

All Parts be all-around Tested：
Magnetic Particle Inspection, Brinell / Rockwell Hardness，Roughness, Tensile Strength, Spectrograph on Chemical Element，Galvanizing Thickness and Dimension tested.

2、FRP fiberglass epoxy resin rods
3、Semi-finished service（Fittings and rods crimping，you only need do silicone rubber injection）