There are ZGA type tape filter and ZCB magnetic roller type paper tape filter, it is consisting of filtrate collector, dirts accumulator, filering non-woven cloth/paper tape, reduction gear, transmission gear, message releasing device and liquid pump etc. Metals or non-metal impurities in the colling solution shall be removed by the paper tape. In this way, the cutting solution can kept clean and the service life of the cleaning solution can be rasied as much as 10-20 times. The efficiency of the paper tape is 98%, which is an ideal element for all type of grinding machines and honing machines.