Rotostat Sanitary High Shear Emulsifier (In-Tank)
OVERVIEW
- Optimum shear rate and tank circulation
- Superb emulsion stability for extended shelf life
- Meets 3-A sanitary standard #73-01 and USDA-AMS standards
- All gear reducers are 304SS with food grade lubricant
- From lab models to production sizes up to 100 HP
- Mixing head diameter sizes, motors, seals, mountings, and more
- Single shaft, obstruction-free design
- One-piece clean-in-place (CIP) mix head
- Optional secondary impellers
- Low-Profile Belt Drive for Low Headroom Applications
HOW IT WORKS
Rotostat™ is an in-tank sanitary high shear emulsifier designed for hygienic processes where stable emulsions, consistent texture, and repeatable batch results are critical. Its mixing head is engineered to deliver controlled rotor/stator shear while promoting strong tank turnover—helping manufacturers form uniform emulsions, reduce stubborn agglomerates, and improve product consistency across production runs.
This emulsifier is typically selected when hygienic formulations demand reliable droplet-size control and long-term stability, and when cleanability and efficient changeovers are important to day-to-day operation. Use this page to evaluate Rotostat™ for your emulsification or dispersion step and to select the right configuration for your vessel and batch size. For broader fundamentals on high shear mixing technologies—including inline vs in-tank selection and when wet milling is required—see our High shear mixer guide.
Top features:
- Optimized in-tank emulsification and dispersion for hygienic products
- Hygienic design considerations; 3-A context where applicable (keep your exact standard references here)
- Scalable from lab to production; configurable head sizes and options
- Designed for repeatable batches and consistent emulsion stability
HOW IT WORKS
The patented mixing head of the emulsifier consists of an internal rotor surrounded by a freely revolving stator. The stator has three large external paddle blades which restrain its rotation to about 1/10 of the rotor speed. For example, the stator will revolve at 360 RPM with a rotor shaft speed of 3600 RPM in water-like materials.
The rotor draws the product into the stator where the high shear action between the high-speed rotor blades and the slowly revolving stator rim subjects the material to an effective milling and grinding action prior to being expelled with high velocity through outlets in the stator rim.
When passing through these outlets, of the emulsifier, particles, agglomerates, solids, etc. are exposed to intense cutting and disintegrating action for a further reduction of particle sizes.
All contents of the vessel will pass through the mixing head of the emulsifier numerous times during the process, and a homogeneous product is achieved in minutes, where a conventional emulsifier/high shear mixer may require hours.
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Rotostat Options
HEAD SIZES
- XP Models range 130 mm – 630 mm diameter (for high solids & viscosity)
- X Models range 130 mm – 838 mm (for low to moderate viscosity emulsions)
MOTORS
- 3/60/230/460 volts (std.) or 575 volts
- White washdown-duty
- 304 SS washdown-duty
- 304 SS pharmaceutical grade (also available in 1/60/115 VAC up to 1.5 HP)
- TEXP
SEALS
- CIP or vacuum lip seals
- Single mechanical dry running seals
- Double mechanical liquid-barrier seals
MOUNTING
- 3-A compliant pedestals
- ANSI flanges
- I-Line sanitary ferrules
MORE
- Variable speed drives
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