The outline of the structure:
　1．Pressure-adjust machine
　　The pressure-adjust board divides the cylinder with the upper cylinder and lower cylinder.Because of the pressure-adjustive function of the pressure-adjust,it insures the density and pressure of the powder in the lower cylinder can't effected by the powder of the upper cylinder.Furthermore,it can use the same rotor with F1 type for the powder of cascade kind.
　2．Measure machine
　　Because the mutual function of the provide tray,whisk and the fixed vane,the powder will full the provide tray with some certain density when it is churned up and scratched away.
　3．Adjustive machine
　　The provide quantity can be adjusted with precision and stepless through adjusts the rotate speed.

Strongpoints:
　1．Reasonable structure which avoid the phenomena of bridging of the powder and jam.
　2．Because the self-adjustive function of the pressure-adjust board,the difference of the pressure will be small in the process of providing the powder which insure the provide precision of the powder.
　3．The providing quantity can be stepless adjusted through controlling the rotate speed.
　4．Possess the function of decentralization and shaving which avoid the trouble of being produced by the attachment,cohesion and agglomeration of the powder.
　5．Simple structure and convinient usage.