This standard specifies the types and parameter series of circular scraper chains (hereinafter referred to as scraper chains) and drive sprockets (hereinafter referred to as sprockets) for cantilever tunnel boring machines. This standard applies to cantilever tunnel boring machines used in coal mines, and also applies to ring scraper chains and sprockets used in other coal mining machinery such as coal loaders and continuous coal miners.
MT/T 928-2004 history
2004MT/T 928-2004 Boom-type roadheader-Series and parameters of scraper round link chain and driving sprocket