Distribution equipment · 绝缘子
Insulator Manufacturers & Suppliers in China (2026)
7 Chinese manufacturers and suppliers of insulators (绝缘子), ranked by their registration, contact and product data, plus 1 international brands that make or sell them in China. A further 2 companies are listed below with their registered names and contacts.
Ranked insulator manufacturers
- 01
XD Electric 西电XD Full profile
Complete AC and DC transmission and distribution equipment.
- High-voltage switches
- Transformers
- Reactors
- Power capacitors
- Instrument transformers
- Insulators and bushings
Why it ranks here: registered legal entity on file; email and phone published; operating since 1959.
- 02
Zhixin Electric 置信电气 Full profile
Energy-efficient equipment, integrated substations and grid services.
- Distribution transformers
- Integrated substations
- C-GIS switchgear
- Gas-insulated cabinets
- Surge arresters
- Bushings and insulators
Why it ranks here: registered legal entity on file; operating since 1997.
- 03
CYG 长园高能CYG
Registered as 长园高能电气股份有限公司 in 1994.
- Insulators
Why it ranks here: registered legal entity on file; email and phone published; operating since 1994.
- 04
Da Lian Dian Ci 大连电瓷
Registered as 大连电瓷集团股份有限公司 in 2003.
- Insulators
Why it ranks here: registered legal entity on file; email and phone published; operating since 1908.
- 05
Su Zhou Dian Ci 苏州电瓷
Registered as 苏州电瓷厂股份有限公司 in 1980.
- Insulators
Why it ranks here: registered legal entity on file; email and phone published; operating since 1936.
- 06
TD TD
Registered as 北京金隅集团股份有限公司 in 2005.
- Insulators
Why it ranks here: registered legal entity on file; email and phone published; operating since 1952.
- 07
Shen Ma Dian Li 神马电力
Registered as 江苏神马电力股份有限公司 in 1996.
- Insulators
Why it ranks here: registered legal entity on file; email published; operating since 1996.
International insulator brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
Lei Dian 雷电
Registered as 南京电气(集团)有限责任公司 in 1997.
- Insulators
Why it ranks here: registered legal entity on file; email and phone published; operating since 1936.
More Insulators manufacturers and brands
| Brand | Registered company | Website | Email / phone |
|---|---|---|---|
| GGGG | 四川省宜宾环球集团有限公司 | huan-qiu.cn | 0831-3705957 |
| NGKNGK日本碍子 | 恩基客(中国)投资有限公司 | ngk-insulators.com | 021-62084488 |
What is an insulator?
Insulators support and separate live conductors from towers, poles and equipment. Power-line insulators are made of porcelain, toughened glass or composite (silicone rubber), in pin, post, suspension and string designs for distribution and transmission voltages.
What buyers compare
- Material: porcelain, glass or composite
- System voltage and mechanical load rating
- Creepage distance for pollution level
- Type: pin, post, suspension or long-rod
- Standard: IEC 60383 or IEC 61109
Comparison table
| # | Company | Province | Est. | Registered company |
|---|---|---|---|---|
| 01 | XD Electric西电XD | Shaanxi | 1959 | China XD Group Co., Ltd. |
| 02 | Zhixin Electric置信电气 | Shanghai | 1997 | Shanghai Zhixin Electric Co., Ltd. |
| 03 | CYG长园高能CYG | Guangdong | 1994 | 长园高能电气股份有限公司 |
| 04 | Da Lian Dian Ci大连电瓷 | Liaoning | 1908 | 大连电瓷集团股份有限公司 |
| 05 | Su Zhou Dian Ci苏州电瓷 | Jiangsu | 1936 | 苏州电瓷厂股份有限公司 |
| 06 | TDTD | Beijing | 1952 | 北京金隅集团股份有限公司 |
| 07 | Shen Ma Dian Li神马电力 | Jiangsu | 1996 | 江苏神马电力股份有限公司 |
Frequently asked questions
How many insulators manufacturers and suppliers in China are listed here?
10 companies are listed for insulators (绝缘子). 7 Chinese manufacturers have full profiles and are ranked; 1 international brands with China operations are listed separately.
Where are China's insulators manufacturers located?
Among profiled companies: Jiangsu (3), Shaanxi (1), Shanghai (1), Guangdong (1), Liaoning (1).
How is this list ranked?
By the completeness and verifiability of each company's data: a registered legal entity, an official website, published contact details, a product range and company history. The rank is not a quality rating, and no company pays for its position. See How we rank for the full method.
How do I contact these manufacturers?
Each listing shows the company's official website and, where published, its email and phone number. Of the 10 companies listed, 10 have an official website and 7 publish an email address.