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Ross serves the requirements of the Chemical Process Industries, in virtually every industrialized country around the world. We have the experience and production capacity that no other manufacturer of specialty mixing and blending equipment can match. In the USA alone, we operate five plants, an analytical laboratory and a vigorous R&D program. Overseas, Ross equipment is being built in our own factories in China and India, and manufactured under license in other counties. Typical applications include mixing, blending, particle size reduction, emulsification, homogenization, powder induction, vacuum processing and more.

Specifications that define a mixer built for a chemical industry application reflect a combination of industry standards, and the mixing functions needed for that particular application. A sub-micron emulsion, for example, requires high-shear agitation, vacuum and usually a heat-transfer system. The size of the mixer is determined by the throughput required. To guard against batch-to-batch contamination, CIP and SIP capabilities are available, along with such devices as air-purged seals and custom designed discharge valves. To ensure a high degree of repeatability and to document the production of every batch, we often add a control system with data-logging capability.

The close connection between specific performance requirements and equipment features is the logical starting point for equipment design. But today, the challenge of specifying and designing a high-performance mixer is more than a two-dimensional process. We regularly address performance needs that are much broader than one particular mixing application. In fact, we often custom design equipment to meet production needs that have not yet been imagined.


710 Old Willets Path
Hauppauge, NY 11788

Phone: 631-234-0500
Fax: 631-234-0691
Contact: Chris Ross




High Shear Mixers equipped with the Solids/Liquid Injection Manifold (SLIM) Technology deliver powders in an efficient manner for quick wet-out and complete dispersion into low-viscosity liquids.

ROSS, a 180-year-old manufacturer of industrial mixing equipment, has grown into one of North America's most well equipped and respected custom fabricators of storage tanks, pressure vessels and reactors. The pictured US-made 3000-gallon custom-fabricated manufacturing vessels are built and stamped according to ASME Section VIII Div 1, constructed from type 304L stainless steel, and designed for full vacuum up to 200 psi internal pressure at 200 degrees F.

In the wake of the COVID-19 pandemic, ensuring consistent processing and speedy manufacturing of essential materials like hand sanitizers and cleaning products has been critical. ROSS Mixers offers High Speed Dispersers and High Shear Mixers capable of handling the necessary mixing and dispersion procsses required for these applications.

The ROSS Model HSM-405SC-25 is an inline high shear rotor/stator mixing system incorporating SLIM (Solids/Liquid Injection Manifold) Technology. Unlike conventional eductors, the unique SLIM rotor/stator generates a powerful vacuum without the aid of external pumps and pulls powders directly into the mix chamber, promoting instantaneous wet out under high shear conditions. Mounted on a multipurpose skid with load cells, actuated valves and level switches, the pictured HSM-405SC-25 recirculates into a 400-gallon jacketed tank and is controlled from a 15” industrial PC with Windows.

Ross V-Blenders are most often used for the intimate dry blending of free flowing solids. The solids being blended in these units can vary in bulk density and in percentage of the total mixture. Materials being blended are constantly being split and intermixed as the shell rotates. Normal cycle times are typically in the range of 15 minutes, however can be less depending on the difficulty of blending.

Ross Double Cone Blenders design is most often used for the intimate dry blending of free flowing solids. The solids being blended in these units can vary in bulk density and in percentage of the total mixture. Materials being blended are constantly being intermixed as the Double Cone rotates. 

Ross is the leading supplier of Ribbon, Tumble and Vertical Blenders for dry powder blending and drying for the process industries. Many products including pharmaceuticals, foods, chemicals, fertilizers, plastics, pigments, and cosmetics are manufactured in Ross dry blending equipment.

Ross is offering a new high-efficiency charging hopper for its line of High Shear Mixers with Solids/Liquid Injection Manifold (SLIM) Technology. The SLIM is a unique rotor/stator device engineered for high-speed powder injection into liquid without the need for eductors or pumps. The improved hopper design ensures a steady rate of feed delivery and prevents “rat holes” or bridging of bulk solids. Typical solids dispersed using the SLIM include fumed silica, CMC, guar gum, carbon black, carrageenan, xanthan gum, talc, alginates, pectin, titanium dioxide, calcium carbonate, starch, clays, alumina, carbomers, sugar, salts, dye powders and other additives or fillers.

The new line of Model 42C Cylindrical Ribbon Blenders are designed to mix dry powders, wet granulations, and paste-like materials with densities up to 100 lb/cubic foot. Available in many sizes from 1/2 to 1,000 cubic feet working capacity, Cylindrical Ribbon Blenders can be built for atmospheric, full vacuum, or internal pressure operation. A full range of standard, heavy-duty, and sanitary models are offered.

Ross SysCon is your single source supply for skid mounted Process Automation. Ross' diverse group engineers and designers has years of experience in multiple different industries ranging from Aerospace to Pharmaceuticals, Pulp and Paper to Automotive, Specialty Chemical to Natural Gas Storage.

Pictured are custom 185-gallon melt kettles rated for full vacuum and 250oF. Each hemispherical vessel is jacketed for 15-psi steam.

Charles Ross & Son is one of the best-equipped and most highly respected custom stainless steel tank fabricators in North America. We offer a combination of engineering and manufacturing resources that few fabricators can match.

Special 100 gallon capacity sanitary mix vessel constructed of type 316 stainless steel. This unit is mounted on a portable cart with a scale. Included is a tilt back air operated propeller agitator, vacuum design, a 100 psi jacket and a sanitary 180 grit finish.

V-Blenders designs are most often used for the intimate dry blending of free flowing solids. The solids being blended in these units can vary in bulk density and in percentage of the total mixture. Materials being blended are constantly being split and intermixed as the shell rotates.


Charles Ross and Son Company

710 Old Willets Path

Hauppauge, NY 11788


Phone: 631-234-0500

Fax: 631-234-0691

Contact: Sales


  • 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.

  • Watch to learn about innovative and scalable mixing equipment that ensures consistent quality and customization for diverse battery formulations, from research and development to full-scale production.

  • 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.

  • Get up to date on new mixing technologies and design improvements in the 3D printing industry. Explore the many techniques and pieces of equipment available today.

  • 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.