Hockmeyer’s Multi-Shaft Mixers have a center mounted low speed Helical or Anchor Sweep blade sweeping the mixing vessel wall and an additional high speed shaft(s). The high speed blade typically provides high shear to disperse or dissolve ingredients. The low speed blade feeds the high speed blade by blending and folding the mass in the vessel and improves product uniformity by scraping the walls. Multi-shaft mixers are most often used to mix medium to high viscosity products.
A high speed disperser alone has a limited zone of influence in viscous products, so the low speed blade is necessary to achieve a homogeneous mixture. When equipped with scrapers (as is typical), the low speed blade also aids in heat transfer to an external jacket. Multi-shaft mixers are sometimes used with low viscosity products when scraping the vessel wall is beneficial.
Applications: Used in the making of printing inks, sealants, caulks, hot melt adhesives, magnetic media slurry, creams, lotions, toothpastes, etc.