In order to seek greater development, our company does not focus on the existing Composite Line Post Insulator, 220V Composite Long Rod Insulator, Polymer Deadend Insulator market, but actively explore new markets. We aim to provide exceptional value to our customers, with competitive pricing and unbeatable service. We are a trusted partner in the global market.
Composite Tension Insulator For electrified railway
The composite insulator is made of acid-resistant epoxy and glass fiber core rod, HTV silicone rubber and metal fittings.
Technical Data
Description | Section Height H(mm) | Minimum Nominal Creepage Distance(mm) | Designed Creepage Distance(mm) | Designed Arcing Distance(mm) | Specified Mechanical Tensile Load(kN) | Electrical Date | ||
Lightning Impulse Withstand Voltage ≥(kV) | Dry Power Frequency Withstand Voltage (kV) | Wet Power Frequency Withstand Voltage (kV) | ||||||
FQX-25/160QT | 750±20 | 1200 | 1300 | 512 | 160 | 270 | 160 | 130 |
FQX-25/160QH | ||||||||
FQX-25/160HH | ||||||||
FQXJ-25/160QT | 800±20 | 1400 | 1485 | 562 | 160 | 290 | 175 | 140 |
FQXJ-25/160QH | ||||||||
FQXJ-25/160HH | ||||||||
FQXG-25/160QT | 850±20 | 1600 | 1692 | 612 | 160 | 310 | 190 | 150 |
FQXG-25/160QH | ||||||||
FQXG-25/160HH | ||||||||
FQXS-25/160QT | 840±20 | Pri./ Sec. | Pri./ Sec. | 505 | 160 | 270 | 160 | 130 |
FQXS-25/160QH | 1200/145 | 1273/167 | ||||||
FQXS-25/162HH | ||||||||
FQXSJ-25/160QT | 890±20 | Pri./ Sec. | Pri./ Sec. | 555 | 160 | 290 | 175 | 140 |
FQXSJ-25/160QH | 1400/145 | 1461/165 | ||||||
FQXSJ-25/160HH | ||||||||
FQXSG-25/160QT | 940±20 | Pri./ Sec. | Pri./ Sec. | 605 | 160 | 310 | 190 | 150 |
FQXSG-25/160QH | 1600/145 | 1671/195 | ||||||
FQXSG-25/160HH | ||||||||
Manufacturing Process for Composite Insulators

We could produce 200 pieces Tension insulator for electrified railway per day in one machine, and could use more machines if delivery time urgent and in big quantity.We have 9 injection machines could produce this item.
Inspection Before Shipment
Before dispatched, the goods will be performed routine test and sample test comply with related standards. In case damage during the transportation, each one’s sheds and housing will be checked thoroughly. Superficial defects of an area greater than 25 mm² (the total defective area not to exceed 0.2% of the total insulator surface) or of depth greater than 1mm.
Package
All composite insulators are packed in weatherproof containers in order to protect the products during land, air and sea transportation. Several different grades of packaging can be offered depending on the mode of transport and the expected storage conditions. The packaging options that we offer are:
1) Standard grade/prefabricated packing.
2) Economical grade/cardboard carton.
3) Best grade/closed wooden crate.
Each container shall be marked with the number of insulators it contains, the catalog number, the manufacturer’s name, and any other customer requests.
Each packing (wooden cases or crates) attached specification and certification of products.
Our factory
We are one of the top 8 manufacturers for composite tension insulator for electrified railway in China, and want to bring higher quality insulators to the whole world.




We continue to develop, and take the responsibility of providing high-performance, high-quality, and high-efficiency 132/120 Composite Suspension Insulators as our mission. Enterprises must not only have a strong vitality, but also a great soul. Our company has an experienced service team to provide customers with thoughtful service.
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