Admix Boston Shearmill™ Wet Mill/Homogenizer for Particle Size Reduction

Admix Boston Shearmill™: High-Intensity Wet Mill for Superior Particle Size Reduction

For industries demanding efficient and hygienic particle size reduction, the Admix Boston Shearmill™ (BSM) series of inline homogenizers and wet mills stands as a premier solution. Outperforming conventional shear pumps and colloid mills, the BSM achieves exceptional throughputs at extreme shear rates. Engineered to meet stringent hygienic standards, these wet mills are fully 3-A compliant, making them ideal for sanitary processing environments within the dairy, food, and beverage sectors, as well as pharmaceutical and chemical applications.

Achieving optimal particle size is critical in numerous processes. Whether you require milling of soft particles to sub-micron levels (<1 micron) or reducing hard particles to the 1-2 micron range, the Boston Shearmill delivers consistent, superior particle size reduction, often in a single pass, even at high production rates. This level of performance surpasses standard admix mixer technology and positions the BSM as a leader in admix high shear mixer solutions.

Leveraging advanced rotor-stator technology, these wet mills offer significant advantages in continuous, 24/7 operations. The BSM is expertly designed to mix, disperse, emulsify, pulverize, macerate, crush, and homogenize a wide range of substances. It excels at reducing solid particles with minimal dust formation and is robust enough to handle uneven flow patterns, pressure fluctuations, and jolts inherent in demanding industrial settings.

With hundreds of successful installations, Admix Boston Shearmills are trusted across diverse applications, including tomato paste standardization, salad dressing and mayonnaise processing, pet food production, flavor emulsions, pharmaceutical preparations, API blending, and polymer blends. When comparing admixing vs mixing with conventional methods, the Boston Shearmill provides a clear advantage in efficiency and particle size control.

Why Choose R-CAP Process Equipment?

At R-CAP Process Equipment, we provide top-tier industrial process solutions designed to optimize your liquid and dry processing operations. From Admix high shear mixers to Piab vacuum conveyors and integrated process systems, our range of products ensures maximum efficiency, reliability, and precision. 

Admix Boston Shearmill Wet Mill/Homogenizer: Key Benefits

Each shear head has a 2-stage rotor turning within a 2-stage stator, with most models featuring 3 heads in series
Low maintenance design for continuous 24/7 duty
Meets 3-A standard #36-01
Over 30 variations of rotor/stator combinations from coarse to ultrafine
Special purpose rotors and stators available to provide low shear or extra chopping where required
Easy-to-clean with no crevices, dead legs, or open threads
Average (mean) emulsion droplets from 0.5 – 3 microns
Solid particle/aggregate particle reduction dependent on durometer of particle
Three distinct series provide a wide range in capacity, power consumption, and tip speed to allow the best results for your process!

How the Boston Shearmill Achieves Superior Performance

The Boston Shearmill is engineered to process very high throughputs at extreme shear rates, consistently producing average mean droplet sizes from 0.05-3 microns. This exceptional performance is achieved through its innovative multi-slot rotor and multi-port stator construction.

Each shear head within the homogenizer features a double ring design, creating two stages of mixing at both the rotor and stator. This innovative design results in three distinct, high-intensity work zones at each rotor/stator location, as the mixture precisely passes between:

1. The first set of rotor slots (or teeth) and the first ring of slots on the stator.
2. The first ring of slots on the stator and the second ring of slots in the rotor.
3. The second ring of slots in both the rotor and stator.

Boston Shearmill models typically feature three shear heads in series, providing a total of 6 mixing stages and 9 high-intensity work zones to effectively handle even the most challenging processing demands. This multi-stage, high shear approach significantly outperforms simpler benchtop lab mixer designs and offers a robust industrial solution.

Boston Shearmill: Key Features at a Glance

High-Intensity Wet Milling: Surpasses conventional shear pumps and colloid mills for particle size reduction.
Designed for Continuous Operation: Engineered for reliable 24/7 performance in demanding industrial environments.
Effective Particle Size Reduction & Homogenization: Disperses, emulsifies, pulverizes, macerates, crushes, and homogenizes with exceptional efficiency.
3-A Compliant and USDA-AMS Standards: Meets rigorous sanitary standards for food, beverage, and pharmaceutical applications.
All Stainless Steel Construction Option: Available with all stainless steel mix head, shaft, drive, and motor for enhanced hygiene and durability.
Modular Design for Versatility: Wide ranges in capacity, power consumption, and tip speed are offered across different models.
Easy to Clean & Maintain: CIP compatible design with no crevices, dead legs, or open threads. Low maintenance requirements minimize downtime.
Multi-Stage Shear Levels: 3 shear heads with 3 shear levels provide up to 9 shear zones in a single pass for maximum processing intensity.
Dust Reduction: Reduces solids particles with minimal dust formation, promoting a cleaner and safer working environment.

How It Works: Detailed Rotor/Stator Design

Admix Boston Shearmills are constructed with a precision-engineered multi-slot rotor rotating at high speeds in close proximity to a multi-port stator. Each homogenizer shear head features a double ring rotor and stator design. This configuration creates three distinct, high-intensity work zones at each rotor/stator location:

Between the first set of rotor slots (or teeth) and the first ring of slots on the stator.
Between the first ring of slots on the stator and the second ring of slots in the rotor.
Between the second ring of slots in both the rotor and stator.

Models equipped with three shear heads deliver nine high shear work zones, providing unmatched processing power for the most challenging applications. These advanced wet mills are capable of processing very high throughputs at extreme shear rates, achieving an average mean droplet size of 1-3 microns.

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