JZK-400P sandblasting machine is suitable for small-scale open sandblasting operations, and is used for the cleaning of oxide scale, rust scale and paint scale of soft material workpieces. The equipment has the performance of continuous sandblasting without stopping, and is one of the ideal equipment for cleaning and removing rust, paint and scale, strengthening the surface and eliminating internal stress before coating the surface of metal structural parts. Compared with high-pressure sandblasting equipment (such as: JZK-600P sandblasting machine, JZK-700P sandblasting machine, JZK-800P sandblasting machine), JZK-400P has weak impact force on the workpiece and is not easy to cause deformation. The disadvantage is that the efficiency is low and it is not easy to use metal abrasives with small mesh.