The WJ6 underground scraper is a large tonnage diesel scraper, which meets the requirements of mine safety certification and is suitable for scraping, transporting and unloading materials in non-explosive environment mine tunnels and other small tunnels, and can meet the requirements of loading trucks of up to 45t in the under- ground mining process. The machine has a high level of protection and is suitable for wet and dusty environments in underground mine tunnels of 5m x 5m. The machine is highly intelligent, safe and reliable to use and has good overall machine sta- bility, which can significantly improve mine productivity and profitability.