Rotomaxx III Chemical Slow-Speed Agitator (High-Efficiency Gear Drive)
The Rotomaxx™ III CX with in‐line helical bevel gearmotor, known for their efficiency, is designed for the most demanding operating environments for chemical applications.
OVERVIEW
Rotomaxx™ III is a high-efficiency slow-speed agitator for chemical processing where large tank volumes and demanding duty cycles require dependable circulation with minimal unnecessary shear. Its modular drivetrain approach supports flexible shaft, gearbox, and motor configurations while reducing vibration and managing load conditions that can challenge conventional agitators.
Use this page to match Rotomaxx™ III to your vessel geometry and operating requirements. If your goal is powder wet-out, deagglomeration, emulsions, or particle reduction, compare against rotor/stator high shear in our high shear mixer guide before finalizing a low-shear platform.
Key Features:
- Tank volumes to 100,000+ gallons
- Entire unit is designed for industrial chem‐duty environments
- 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

Rotomaxx III CX
Model Specifications
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Configurations
300 RMAX
400 RMAX
500 RMAX
Output Speed
13 – 311 RPM
12 – 240 RPM
12 – 240 RPM
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
2.5 & 3.0 in.
3.5 & 4.0 in.
4.5 & 5.0 in.
Max. Shaft Length
up to 144 in.
up to 200 in.
up to 260 in.
Impeller Diameter
up to 50 in. / 1270 mm
up to 65 in. / 1651 mm
up to 80 in. / 2032 mm
Pumping Rate @ 1 cps
up to 54,000 gpm
up to 80,000 gpm
up to 125,000 gpm
Additional Customized Solutions
Rotomaxx III CX Options
SEALS
- CIP or vacuum lip seals
- Single mechanical dry running seals
- Double mechanical liquid-barrier seals
MOUNTING
- ANSI Flanges
MOTORS
- 3/60/230/460 Volts (std.) or 575 Volts
- White Washdown-duty
- 304SS Washdown-duty
- TEXP
MORE
- Variable speed drives
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