Series CTG dry powder cylinder-shaped permanent magnetic separator (from the single cylinder to four cylinders) is a magnetic separation equipment used to attract dry powder from the material continuously and automatic. The unique design for magnetic circuit and the magnetic source is made up from the NdFeB with high performance. Featuring with strong magnetic force and high efficiency for tramp iron-elimination, it can be widely arranged in the lines such as grinding, fire-proof material, foodstuff, feed, building material, ceramics, raw material for glass, and chemical industry and so on. Feeding capacity can be adjusted to meet the different granularity requirement. It is characteristic with exempt-maintenance, energy saving, cost-lower, safety and reliability.