YH65 YH70 Diaphragm 51206407 is a flexible sealing component used in the hydraulic rock drill system. It separates fluid and gas chambers, helps maintain pressure, and prevents leakage between sections during operation.
Manufactured by ONSAMAK from durable rubber material, the 51206407 diaphragm is designed to withstand repeated pressure changes and continuous use. It is supplied as an aftermarket replacement part for rock drilling equipment used in mining, quarrying, and construction.