Solid Suspension Mixing

Philadelphia Mixing Solutions, Ltd. and Mixing Solutions Limited’s line of aerators, mixers and impellers can be configured to fulfill the solids suspension mixing requirements of any client. Our products are the result of a more than 60-year history of engineering expertise — when non-soluble particles need to be mixed and dispersed throughout a fluid, we can ensure it is done accurately, efficiently and cost-effectively.

Custom Solutions for Today’s Industrial Processes

Our expertise encompasses a wide range of mixing technologies. In the past, we have developed solid suspension mixing systems for industrial/chemical, oil and gas, and other applications. We’ve invested in the testing facilities to ensure our products and services meet the precise requirements of almost any client. Our research and development laboratory includes a 750,000-gallon tank for replicating the real-world conditions our impellers and mixers will encounter. This allows us to engineer and optimise new systems with greater certainty, reducing your development costs and ensuring your satisfaction with mixing results.

Cost-Effective Engineered Solutions

Our solids suspension mixing systems are cost-effective to develop and install, but they also deliver long-term value through decreased maintenance costs. We understand that solids suspension mixers are higher load, and we’ve endeavoured to create products that require fewer repairs while still delivering the consistency you require.

Many processes require the suspension and mixing of solid particles in liquid.  The particles may begin forming during a precipitation or crystallization, disappearing as they dissolve or simply being distributed in the liquid phase such as a catalyst promoting a reaction.

It is important to determine what degree of suspension is required.  Some processes only require the particles to be in motion on the base of the vessel while others require uniform distribution throughout the liquid.  This choice will have a significant impact on the size of the equipment required.


The successful operation of these processes is dependent on correct understanding of the mixing requirements and design of appropriate agitation equipment.  Problems that may be encountered when the process requirements are not fully understood and designed for include:

  • Wrong particle size (and particle size distribution) generated during a precipitation.
  • Slow dissolving due to incomplete suspension of particles.
  • Slow reaction due to incomplete suspension of catalyst particles and/or slow mass transfer between the liquid phase and the catalyst surface.
  • Restarting an agitator when the impeller is covered by the settled solids.

Philadelphia Mixing Solutions and Mixing Solutions Limited have a long and successful track record of designing and supplying agitation equipment for solid-liquid mixing processes.  Our goal is to provide the optimum mixing solution by understanding the role of the mixing and fluid mechanics on the desired process outcome.

To learn more about any of our products, contact a Philadelphia Mixing Solutions representative directly. For new clients, we encourage you to provide us with a sample of what you need mixed so we can better understand your requirements and provide more appropriate and effective solutions from the ground up.