Highly resistant to lightning puncture, Orient pin insulators manufactures a wide range of low and high voltage Pin Insulator designed for distribution and sub transmission circuits. The versatile neck designs in “C, F, K and J,” side and top grooves, allow the acceptance of large – diameter conductors to permit easy tying. All neck sizes conform to industry standards allowing factory – formed ties to be used.

A high voltage pin insulator consists of a non-conducting material such as porcelain, glass, plastic, polymer, or wood that is formed into a shape that will isolate a wire from a physical support (or "pin") on a telegraph, utility pole or other structure, provide a means to hold the insulator to the pin, and provide a means to secure the conductor to the insulator. By contrast to a strain insulator, the high voltage pin insulator is directly connected to the supporting pole. The earliest porcelain pin insulator predates the strain insulator and was deployed before about 1830. Nowadays composite pin insulators are produced in production with manufacturers worldwide.

High voltage pin insulators are almost always deployed in the open air, so isolation when wet is a major consideration. To combat this problem, pin type insulators feature extra skirts or wide shells to increase the surface distance between the conductor and the pin.
The "pin" is typically a wooden or metal dowel of about 3 cm diameter with screw threads. The porcelain or composite pin insulators have threads so that it can be screwed onto the pin. A typical pin insulator is more than 10 cm in diameter and weighs one kg or more. Size depends on the voltage to be isolated and the weight of span of wire to be supported.