The portable sampler is a compact, convenient, flexible and mobile spiral sampler developed based on our company's years of experience in coal mining, manufacturing and chemical processing. Samplers are generally not limited by site space or other conditions, and can easily sample solid particulate matter in full cross-section or at a certain depth. Suitable for random sampling of samples in industries such as power, coal chemical, metallurgy, building materials, geology, etc. that do not have mechanized sampling equipment or are not convenient for implementing mechanized sampling in laboratory tests and experiments.