Rotomaxx III High-Efficiency Sanitary Slow-Speed Agitator
The Rotomaxx™ III with in‐line helical bevel gearmotor, known for their efficiency, is designed for the most demanding operating environments for hygienic applications.
OVERVIEW
Rotomaxx™ III is a high-efficiency slow-speed sanitary agitator designed for demanding hygienic environments where durability, smooth operation, and scalable tank turnover matter. Its modular design supports a wide range of shaft diameters, gear ratios, and horsepower configurations while reducing vibration and protecting drivetrain components under variable loading.
Use this page to select Rotomaxx™ III configurations for your vessel size and operating conditions. If your process needs high shear dispersion or emulsification rather than low-shear circulation, use our high shear mixer guide to confirm the right technology path first.
Key Features:
- Tank volumes to 100,000+ gallons
- Maintenance‐free, greased‐for‐life, sealed bearings in bearing frame
- Premium high efficiency, ground helical bevel gearing provides 20‐30% more efficient gearing than conventional worm gearing
- Synthetic lubrication in gear drives
- Up to 50 HP input
- Output torque up to 30,000 in‐lbs with 1.25 service factor
- Impellers can be welded for 3-A sanitary compliance

Rotomaxx III
Model Specifications
Scroll to the right if needed to view all information.
Configurations
300 RMAX
400 RMAX
500 RMAX
Output Speed
13 – 311
12 – 240
12 – 240
HP / Kw Range
1 – 7.5 hp / .75 – 5.6 Kw
1 – 10 hp / .75 – 7.46 Kw
1 – 20 hp / .75 – 14.91 Kw
Shaft Diameter (in. / mm)
2.5” & 3.0”
3.5” & 4.0”
4.5” & 5.0”
Max. Shaft Length (in. / mm)
up to 144″
up to 200″
up to 260″
Impeller Diameter (in. / mm)
up to 50 in. / 1270mm
up to 65 in. / 1651mm
up to 80 in. / 2032mm
Pumping Rate @ 1 cps (gpm/lpm)
up to 54,000 gpm
up to 80,000 gpm
up to 125,000 gpm
Additional Customized Solutions
Rotomaxx III Options
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
MOTORS
- 3/60/230/460 Volts (std.) or 575 Volts
- White Washdown-duty
- 304SS Washdown-duty
- 304 SS Pharmaceutical Grade
(also available in 1/60/115 VAC up to 1.5 HP) - TEXP
MORE
- Variable speed drives
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