Counter Rotating Mixers

Sepak Industries design and manufacture counter-rotating mixers for mixing of viscous, non-Newtonian fluids in tanks and process vessels. Products such as conditioners, shampoo and tomato sauce can now be easily mixed, improving heating and process times. The mixers can be adapted to suit existing vessels or Sepak Industries can design and manufacture complete with purpose built process vessel. The mixers are manufactured with an anchor type outer stirrer and aerofoil type inner stirrers. The outer stirrer has Nylon scraper blades for scraping the vessel wall to prevent burn on in heated vessels, and to increase turbulence and heat transfer near vessel walls. Mixing speed, mixer type and blade profiles can be selected to suit specific applications or products, with many types available.

The mixer pictured to the right was fitted to an existing 7500 litre steam jacketed, vacuum vessel.  Hard faced mechanical shaft seals were incorporated to allow the mixer and vessel to hold vacuum during the mixing process. A split mechanical seal was used on the outer shaft to minimize disassembly and downtime for seal face replacement. Our design also avoids any bolted shaft couplings within the vessel and all wetted parts are manufactured from 316 stainless steel. Our scraper design allows scrapers to be changed in minutes without the use of tools.