SIMOTEC® Hollow core composite insulators acc. to IEC, ANSI and customer standards are produced with cylindrical, inner and outer appearance up to a maximum length of 6000 mm in one piece. These insulator types are produced to withstand high mechanical forces such as inner pressure and cantilever. The design of these insulators is tailor-made to customer requirements. Due to the use of high quality LSR silicone rubber these insulators perform extremely well even under severe climatic conditions and under pollution eliminating the need of maintenance or cleaning of the switches they are use in. Due to the compact and light design SIMOTEC® hollow core composite insulators play a significant role in the manufacture of high-quality and reliable switchgears.