Helsh-Tech has made a breakthrough in the design of the series developed for large particle size and high solid content. Helsh-Tech rotor pump after several years of in-depth practice in sauce conditions, know the material characteristics, high requirements for pumps, corrosion resistance and so on. Selection and configuration of mechanical seal is very critical, combined with the advantages of the pump is a good integration into the actual operation, the material conveying smooth without obstruction, no pump phenomenon.