Two-component screw pump is a precision volumetric metering and conveying product,which is suitable  for  various high- precision quantitative conveying occasions.The single-component screw pump adopts a spiral structure design,the screw and the stator are self-sealing design,and the screw rotates in the stator cavity to realize the quantitative conveying function.The conveying process does not produce shearing effect on the medium and does not affect the characteristics of the medium.At the same time,the motor can be reversed and sucked back,which can easily realizethe glue breaking of the adhesive,which perfectly solves the problems of dripping and drawing during the dispensing process.