Learn how you can simplify mixer selection for a particular capsule-shell formulation by considering the formulation's viscosity and the appropriate level of shear.

Explore the benefits of preparing liquid supplements in a multi-shaft mixer designed for bulk agitation, high-speed solids dispersion, and superior heat transfer.

Multi-shaft mixers are versatile systems used in the production of pharma and medical products. Here, we discuss equipment features commonly supplied on multi-shaft mixers for sanitary applications.

In the processing of ophthalmic solutions, high-shear mixers are utilized for dissolving salts as well as dispersing viscosity enhancers, antioxidants and other additives.

Designed for high-speed powder dispersion, the Ross Solids/Liquid Injection Manifold Mixer is well proven in the preparation of tablet coatings. 

A majority of pharmaceutical gels are shear-thinning semisolids prepared by dispersing hydrophilic polymers into an aqueous vehicle. Proper mixing requires a good balance between agitation and shear.

Dry blending is an indispensable operation in the manufacture of multivitamins, sports supplements, herbal extracts, meal-replacements, green food powders, and other nutraceutical products.

For years, blending dense slurries has been a job for the traditional vacuum dryer with a rotating vessel. Today, processors are finding a different blender/dryer can handle the heaviest of materials more easily.

This application note offers tips for efficiently containing powders in a ribbon blender to ensure operator safety, prevent cross-contamination and promote easy clean up.

The growing demand for prescription and over-the-counter transdermal products encompasses a wide range of uses and conditions, from motion sickness and smoking cessation, to hormone replacements and pain management.

Planetary mixers are ideal for wet granulation processes. Advantages include "one-pot" processing, high uniformity and yield, predictable performance, and ease of cleaning.

Viscous products possessing shear-sensitive behavior, fragile components or abrasive properties require gentle but thorough mixing.

To help ensure a long service life out of your capital investment and obtain high quality blends in every single batch, consider the following tips on ribbon blending.

Solid-solid mixing sometimes involves powders that need to be uniformly coated with smaller particles of a different component. The ingredient that is coated onto the bulk material is typically a very small percentage of the batch, thus requiring thorough and uniform blending.

Rotor/stator mixers specially designed to generate a powerful vacuum within the mix chamber are capable of inducting a wide variety of solids, from fine powders to friable pellets.

Mixing bulk solids into liquid can be challenging not only due to low solubility or resistance to wet-out/dispersion. The difficulty may simply be due to sheer volume.

In many industries, the challenge of making high quality submicron emulsions has never been more important. Depending on the application, they improve texture, aesthetics, taste, rheology, shelf-life, or even cost. In short, the quality and stability of emulsions play a major role in refining the physical characteristics and effectiveness of numerous end products.

Developing a new formulation at the R&D stage can require multiple iterations to arrive at the optimal quality, functionality, cost or a combination of these and other factors.

Explore ideas for selecting the right inline high-shear mixer for your process based on a company’s collective experience as a mixing equipment provider to process industries.

Mixer testing simulation trials are necessary to confirm the suitability of a specific mixing strategy. Explore five ways to increase energy efficiency in new and existing mixing processes.

Mixing is one of the most common operations in food processing, but comes with challenges -- batch-to-batch uniformity, optimizing blend times, and most importantly: improving cleanliness.

Mixing processes vary from one application to another and there are no fix-all solutions.This white paper presents some strategies for improving commonly encountered batch mixing problems.

Uniformly dispersing powders into a liquid batch in a practical amount of time is a common problem for F&B manufacturers. This white paper explores five tips for dispersing powders more efficiently.

Purchasing new mixing equipment is typically not a hasty event. As with any capital investment, the purchase of a new mixing system ideally requires time and research.

Mixing equipment employed in the production of pharmaceuticals and medical devices deal with a higher level of complexity because their use is more specialized. Not one design fits all.

This paper provides practical information on the efficient use of specialty mixing equipment for the preparation of low, medium and high viscosity solid-liquid mixtures under low and high shear conditions.

When selecting mixing systems, foresight for scale-up is important for long-term success. A quick shift between systems can be the difference between economical success and a financial disaster.

Creating an efficient mixing system is a balancing act. Throughput must be balanced against batch size, agitator sizes, motor sizes, shear speeds, viscosity, and many other variables.

This white paper explains the rules for mixers and the applications for which two, three, or even four different types of mixers can conceivably provide an optimal tool to achieve your process goals.

Vacuum drying is ideal for processing heat-sensitive materials without risk of thermal degradation. It also allows manufacturers to recover costly solvents or safely dispose of any harmful volatiles removed from the closed system.

This white paper presents an overview of mixing technologies employed in the dispersion of nano-sized solid particles into liquid. By Christine Banaszek

The ROSS VersaMix VMC-320 is a versatile multi-shaft mixer for processing viscous solutions, offering powerful agitators, customizable controls, and semi-continuous operation with robust safety features.

ROSS Ribbon Blenders are used throughout the process industries for the efficient and effective mixing of powders, granules, pellets, grains and other bulk solids. Available in lab scale to full production models, these machines are built to handle a wide range of bulk densities and can be customized for heavy-duty and sanitary applications.

It is with great sadness that we announce the passing of Richard Ross, former president of Charles Ross & Son Company, on September 14, 2024. Rich was a visionary leader who played an instrumental role in shaping the company’s future and global success.

Built to handle a wide range of formulations and viscosities, the ROSS FDA-50 Fixed Tank Dual Shaft Mixer is a custom-design agitated pressure reactor ideal for processes that require meticulous control over mixing, temperature, and pressure in a compact and portable module. The stainless steel type 316 dished bottom vessel and removable dished cover can accommodate internal pressures up to 100 psi, stamped according to ASME Section VIII, Div. I.

ROSS Dual Shaft Mixers are versatile, robust and cost-effective systems engineered for accurate processing of high-performance formulations across a wide range of rheologies, solids loading, operating temperatures and pressures.

Offering a high level of precision and consistency, ROSS V Cone Blenders utilize diffusion as the main mechanism for mixing. As the V shaped vessel rotates on its horizontal axis, batch materials cascade down, distributing particles over a freshly exposed surface.

Fully Rebuilt to perform like brand new, ROSS-reconditioned Double Planetary Mixers are dependable workhorses for high-viscosity and heavy-duty applications. The pictured Reconditioned Model DPM-4 has been meticulously restored to as-new working condition and offers the same standard one-year warranty as a new ROSS Mixer.

Capable of processing viscous solutions, dispersions, suspensions, and emulsions with viscosities in the hundreds of thousands of centipoise, the ROSS line of VersaMix Multi-Shaft Mixers is built for longevity, speed and efficiency. The ROSS VMC-100, pictured below, is designed for vacuum operation up to 29.5”Hg and supplied with interchangeable 100-gal mix cans, each fabricated with a 50-psig ASME-code stamped jacket for heating/cooling via glycol. The custom electro-hydraulic system is engineered to fully raise the motor drive in 15 seconds.

ROSS Mixers, a leading provider of US-designed and manufactured mixing equipment, offers a Trial Rental Program which offers process managers a powerful tool for optimizing R&D projects before committing to substantial capital investment.

The ROSS line of Double Planetary Mixers, which come in a wide range of configurations and sizes ranging from ½ pint to 750 gallons, are dependable workhorses for mixing thick, sticky, or putty-like materials. The pictured Sanitary Double Planetary Mixer Model DPM-4S and Sanitary Discharge System Model DS-4S are fully customized and engineered for efficient processing of medical-grade silicone formulations in a portable workstation.

ROSS VersaMix Multi-Shaft Mixers are proudly designed and manufactured in the U.S. to optimize the processing of medium to high-viscosity products. These versatile mixers exhibit outstanding performance and deliver exceptional efficiency across a wide range of applications with viscosities ranging up to several hundred thousand centipoise such as pastes, gels, slurries, and suspensions.

A proven workhorse used throughout the process industries, the ROSS V Cone Tumble Blender utilizes diffusion mixing to deliver low impact, highly accurate, and repeatable mixing of powders, high-density powdered metals, granules, pellets, and other free-flowing solids.

This laboratory high shear mixer consists of a single stage four-blade rotor that turns at high speed within a stationary stator. Learn how the design promote continuous flow, fast mixing, and more.

This double planetary mixer includes two blades that rotate on their own axes while simultaneously orbiting the mix vessel on a common axis. Watch to learn more about this mixing technology.

Known worldwide for heavy-duty robust construction, high quality materials, and fine craftsmanship, these ribbon blenders meet the toughest standards for quality and long-term performance.

Explore robust and versatile multi-shaft mixers used throughout nearly every process industry. These mixers accommodate a range of shear input and viscosities up to several hundred thousand centipoise.

Discover an original equipment manufacturer (OEM) that has the unique capability to provide standard and custom designed mixers to meet your diverse processing needs.

OSS Three Roll Mills, used for high viscosity dispersions in many industries, feature true heavy-duty construction, precision workmanship and ANSI 2017-compliant controls package.

ROSS is pleased to announce the launch of its newly redesigned website. Mixers.com is faster than ever before, easier to navigate and contains more product information.

Designed to minimize risk and maximize productivity, ROSS Ribbon Blenders meet OSHA standards with safety shaft guards (no external moving parts) and limit switches that prevent operation of the agitator when any cover or manway is open. In addition, safety grating can be installed on dedicated charge ports or across the entire blender opening for extra protection and to make it easier for operators to dump bags of dry raw material into the blender.

The ROSS X-Series Inline Ultra-High Shear Mixer is designed for efficient high-throughput emulsification, dispersion, and homogenization.

ROSS VersaMix Multi-Shaft Mixers with Solids/Liquid Injection Manifold (SLIM) Technology enable fast and efficient large-scale powder dispersion into low-viscosity liquids including resins, oils, melted waxes, emulsions, and aqueous solutions.

The ROSS Inline Ultra High Shear Mixer 700 Series is designed for challenging shear requirements, a more efficient alternative to colloid mills which generally suffer from low throughput.

Gain insights from a pharmaceutical equipment manufacturer on factors cannabis manufacturers should consider when they're looking to purchase a mixer.

ROSS engineers custom blending systems incorporating ergonomic material handling accessories, including bag dump workstations.

The ROSS Double Planetary Mixer is ideal for high-precision mixing, granulation and vacuum drying all in a single vessel.

ROSS recently designed a new skid system capable of mixing and pumping low to moderately viscous products. The Model VSL-400 design is a custom conical vessel on a movable skid with a progressive cavity pump rated for 10-30 gallons/minute.

The ROSS Double Planetary Mixer is available in a reverse-lift design which raises the vessel to the mixing position, rather than lowering the agitator assembly. A reverse lift facilitates improved rigidity and more uniform blade-to-vessel clearances without relying on the floor to be completely level.

ROSS inline high shear mixers from 1 through 250 HP accelerate mixing, emulsification and homogenization in both recirculation and continuous modes. A mobile skid allows these machines to be used anywhere in a plant, saving time and money by eliminating the need for multiple mixers separately dedicated to each vessel or product

ROSS is pleased to announce the appointment of Ken Langhorn to the position of Vice President of Sales.

Conventional agitators are unable to create the fluid circulation necessary to disperse 4%+ powdered CMC dispersions. The consequence of insufficient agitation is the formation of non-dispersed lumps.

Companies are reevaluating mixing processes, looking for ways to lower cost, boost production capacity, and improve quality. This article will explain how high-shear mixing can help achieve these goals.

In this age of technological marvels and Internet madness, it's refreshing to see an innovation that isn't the product of an exotic new technology.

Mixing challenges throughout the process industries are heightened as the viscosity and complexity of the mixture rises. This webinar reviews the numerous options that are available to help select the most efficient mixer for a users requirements.

Dry blenders are typically described as being of horizontal, vertical or tumbling designs. On the surface it would seem that each can be used for the same application, but subtle differences usually make one preferable over another. This webinar helps to narrow the choice of the unit for a particular production requirement.

Topics of this webinar include dry blending, high speed mixing, and batch mixing applications for pharmaceutical manufacturing. This webinar addresses the current challenges facing the industry , as well as new innovation that will help with any issues manufacturers are facing.

Charles Ross & Son Company manufactures a wide range of sanitary high shear mixing and dispersion equipment for fine emulsion and homogenization requirements. Many models are available to permit a client to select the exact machine for particular process needs.

The Ross Inline Solids Liquids Injection Manifold (SLIM) System is great for inducting and immediately dispersing large quantities of difficult to disperse powders such as CMC, fumed silica, and carbomers.

Video: Ross Double Planetary Mixers

This vacuum processor is primarily used for processing by companies that require the ability to process under sanitary conditions. The mixer is constructed entirely of stainless steel and is completely polished for total cleaning between batches

Oleoresin extraction, the starting point for many varieties of flavor development, is a long, labor-intensive and costly process...

Whether you're considering a tumble blender for your process or shopping for a suitable piece of blending equipment, here are 10 things you should think about before making the final decision.