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The Composite Railway Insulator

 Composite railway insulator is also called Silicone Rubber Railway Insulator or Polymer Railway Insulator.

Composite railway insulator is used for grid system for electrical railway (3.3KV, 25KV & 50KV) 

The suspending composite railway insulator: Product Scope: 70kN to 160kN; 

The supporting composite railway insulator: Product Scope: 8kN to 16kN.

Specified Cantilever Load (SCL) of composite railway insulator: 4-20 kN

Applicable Standard according to : IEC, BS,or Customer requirement

Product features 

- Light weight, small size, easy for transportation and installation

- Super performance for anti-pollution

- High cantilever strength, good performance for seismic shock resistance, 


 - Easy for operation and maintenance  

The drawing and technical specification of composite  insulator

composite railway insulator




Structure of composite railway insulator

silicone rubber housing, ERC fiber glass core, and H.D.G. steel end-fittings. 



Transmission line post insulators

The Material of insulator

Polymer Line Post Insulator FPQ33/12.5




33kv porcelain pin insulator



About Us - Composite insulator manufacturer
More than 40 years experience in power industry since 1978 as a composite insulator manufacturer in China, advanced manufacturing process, strict quality control test system, ISO certificated, excellent communication, considerate services, enable us to be a leading composite insulator manufacturer of composite insulator and polymer insulator.
Our Advantage
ISO 9001 certificate
5000h Aging Type Test Report
Considerate after-sale services
Patent Product and New Technique
Instant Response for Each Requirement

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