22 Years of Intelligent Manufacturing

in Porcelain Insulators

Source Factory · Customization Welcome

Porcelain insulator products arranged in the production workshop

Huagao Porcelain Insulator Products

Established in 2004, the company focuses on the design, research, development, production and sales of porcelain insulators. Its porcelain housing products include:

The company operates large ball-milling and clay-processing equipment, high-speed intelligent automated gas kilns, fully automatic circulating tunnel drying rooms and kilns, CNC forming, glazing and porcelain-grinding equipment, together with a complete laboratory testing system. Current annual production capacity is 45,000 tonnes.

Huagao Product Advantages

Product Advantages

22 Years
of Manufacturing Expertise
Technology Innovator

Comprehensive sizes / Continuous performance gains / Mature forming processes

  • One-piece formed product height up to 2.7 m
  • Organic-bonded product height up to 9.6 m
  • Inorganic-bonded product height up to 6 m
  • Product diameter up to 1.1 m
Porcelain products covering a wide range of specifications and sizes

Huagao Porcelain Products

On-site Product Photos

Huagao Porcelain Product Series

Series Display

Transformer Porcelain Housings

35kV–800kV

Instrument Transformer Housings

35kV–800kV

Surge Arrester Porcelain Housings

35kV–750kV

GIS Porcelain Housings

35kV–500kV

Cable Terminal
Porcelain Housings

35kV–500kV

SF6 Circuit Breaker Housings

35kV–220kV

Porcelain Product Delivery Cases

Series Display

750kV Transformer BushingDelivered to TBEA
750kV transformer bushing delivered to TBEA
750kV Transformer BushingDelivered to Hitachi Energy
750kV transformer bushing delivered to Hitachi Energy
800kV instrument transformer housing delivered to Arteche
800kV Instrument Transformer HousingDelivered to Arteche

Serving Customers Worldwide

Serving Global Customers

More Than Two Decades of Progress

Our products are exported to more than 20 countries and regions, including Spain, India, Croatia, South Africa, Sweden, the United States, Brazil, Mexico, Argentina, Italy, Colombia and Ukraine. Over two decades of development, our international reach has continued to grow.

20+
Countries Served
22+
Partner Clients

Huagao Corporate Clients

Corporate Clients

A Global Supplier of Hollow Porcelain Insulators for Power Systems

Huagao has established close strategic partnerships with leading electrical companies in China and abroad, including Hitachi Energy, GE, Siemens, China Electrical Equipment Group, TBEA, Sieyuan Electric, Taikai Group, Arteche, XD Group, Chint Electric, CG Power, Nanjing Electric and many others.

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Huagao global partner company logos

Huagao Product Video

Video Showcase

Obtained State Grid supplier qualification in 2026

State Grid Supplier Qualification

Huagao obtained State Grid supplier qualification in 2026

Porcelain Product Assembly Examples

Assembly Examples

Porcelain product assembly at a high-voltage substation

Application Showcase

Resists cracking during sudden temperature changes for high and ultra-high voltage conditions

Close-up of a porcelain product in transmission equipment

Application Showcase

Non-combustible inorganic material that helps prevent fire spread during line faults

Work With Us
ApplicationsA Wide Range of Uses
White porcelain product assembly on substation equipment

Application Showcase

A stable porcelain structure with excellent bending and torsional strength

Porcelain products assembled in outdoor substation equipment

Application Showcase

Suited to coastal, chemical and heavy-industrial areas to reduce pollution flashover risk

Porcelain product assembly at an electrical substation

Application Showcase

High power-frequency and lightning-impulse voltage withstand capability

Porcelain product applications in a large substation

Application Showcase

Weather and ageing resistant for long service life without outdoor cracking or powdering