Chinasun International Industry Co., Ltd. is a group of three big factories and some other small factories.
Here is San Rui Science&Technology Co.,ltd ,a manufacturer of more than 30 types of toughened glass insulators for more than ten years in China .
If you have any inquiry, please contact us without hesitation, we will give you rapid reply upon receipt of your inquiry. We insist on the principle of " Sincerity, Friendship, Benefits and Development" and always provide high quality products and best services to all of our customers.
The specifications of toughened glass suspension insulator of Standard type :


The specifications of toughened glass suspension insulator of DC type :


The specifications of toughened glass suspension insulator of Fog type :







Product type: | U550BP |
Mechanical failing load ≥: | 550KN |
H(Nominal Spacing Height): | 240MM |
Nominal Diameter: | 390MM |
L(Min nominal creepage distance): | 710MM |
Connection type: | 32 |
Lock pin type: | 32R |
Impulse puncture withstand voltage: | 2.8P.U |
Wet withstand voltage(1min): | 60KV |
Puncture: | 130KV |
Net weight unit: | 18KG |
Packaging:6 pcs into one wooden case,several pallets into one container.Or according to your request.
Shippment time :20 days after receive your order.

Sharp tools make good work.Through the authoritative identification of China Electricity Council ,the technical performance of our products have reached international advanced level.
1. Rich experience in ODM and OEM.
2. Excellent One-stop service.
3. High Quality Precision Customized forging & Casting services.
4. The lowest price.
5. Strict quality control with ISO9001 Certificate.
6. We can manufacture it according to customers requirements.
7. Best after-sale services.
Full Technical Data of the Glass Insulator:
IEC Standard insulators | U70BL | U120B | U160B | U160BL | U210B | U300B | U420B |
Designation | LXP1-70 | LXP-120 | LXP4-160 | LXP-160 | LXP4-210 | LXP-300 | LXP-420 |
( mm ) Diameter D | 255 | 255 | 280 | 280 | 280 | 320 | 360 |
( mm ) Spacing H | 146 | 146 | 146 | 170 | 170 | 195 | 205 |
( mm ) Creepage L | 320 | 320 | 400 | 450 | 450 | 485 | 550 |
( mm ) Ball and Socket soupling | 16 | 16 | 20 | 20 | 20 | 24 | 28 |
( kN ) Mechanical failing load | 70 | 120 | 160 | 160 | 210 | 300 | 420 |
( kN ) Mechanical routine test | 35 | 60 | 80 | 80 | 105 | 150 | 210 |
( kV ) Wet power frequency withstand voltage | 40 | 40 | 45 | 50 | 50 | 50 | 50 |
( kV ) Dry lightning impulse withstand voltage | 100 | 100 | 110 | 110 | 125 | 130 | 140 |
( P.U ) Impulse puncture voltage | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 |
( kV ) Power frequency puncture voltage | 130 | 130 | 130 | 130 | 130 | 130 | 130 |
( µV ) Rodio influence voltage | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
( kV ) Corona visual test | 18/22 | 18/22 | 18/22 | 18/22 | 18/22 | 18/22 | 18/22 |
Power frequency electric arc voltage | 0.12s/20kA | 0.12s/20kA | 0.12s/20kA | 0.12s/20kA | 0.12s/20kA | 0.12s/20kA | 0.12s/20kA |
( kg ) Net weight per unit | 3.6 | 4.2 | 6.1 | 6.5 | 7.3 | 10.6 | 16 |
Sanrui Technology adopts international advanced all electric melting furnaces founding technology, domestic leading forming technology, toughened technology, nickel sulfide transformation technique; established the provincial toughened glass insulators Engineering Research Center and the provincial key laboratory of toughened glass insulators; can product high technical products, have the leading domestic production equipment and strong research team.
And through the "ISO 9001 international quality management system certification", "ISO 14001 environmental management system certification, GB/T28001-2001 occupation health and safety management system certification, and has won the" Jiangxi famous trademark "," national high tech enterprise "," national key new product "," provincial engineering technology of glass insulator research center "," Jiangxi province science and technology progress prize two "," Jiangxi province key new products "," Chinese Agricultural Bank AAA enterprise "," AAA contract and trustworthy unit "honorary title.
SanRui Technology produces two series of AC and DC in total of more than 30 types of toughened glass insulator products. 40 ~ 550KN standard type, stain resistance, aerodynamic-type, DC, linear type, railway products have been a successful trial and those products have passed the appraisal of the China Electricity Council "product performance has reached international advanced level", the next step will produce the umbrella series and R&D of 800KN product; voltage level of some products has reached ±800KV , it also helped to accumulate experience and lay the foundation for the R&D of 1000KV UHV.