Shandong Mining Machinery Group (山东矿机集团) is a company that specializes in aviation, manufacturing, and coal mining machinery. It offers fully-mechanic equipment for coal mining, coal washing, mine safety, brick-making, postpress packaging, and unmanned aviation. The company's product portfolio includes scraper conveyors for backfilling, refuge chambers, mine rescue capsules, mining cylinders, turbojet engines, and more.