Spiral Wash Machine are also called ore washer which are used to wash ores with mud before the employment of mineral processing technology as well as increase ore dressing indexes of back-end technology. They are often used to wash cores such as manganese ore, iron ore, limestone, tungsten ore, tin ore and silica sand ore. According to silt content, grain size and washing difficulty level of cores, double-screw washer, troughed ore washer or cylindrical ore washer can be selected. Sand and gravel washers are also used to wash sand and gravel in construction sites, power stations, etc. RXT sand and gravel washers introduce foreign technology and apply to desliming of sand and gravel. Single-deck or double-deck round screen is installed inside the drum of the washer which can get two or three types of sand and gravel production of different specifications.