| Impeller Type | Central / off center Baffles: 0 / 2 / 3 / 4 Blades: 2 / 3 / 4 Stages: 1 to x |
|---|---|
| Flow Direction | Radial |
| Preferred Arrangement | Center Mounted |
| Blending | Moderate |
| Suspending | Moderate |
| Dispersing | Low |
| Heat Transfer | Moderate |
| Gassing | Moderate |
| Flow Range | Laminar / Transitional |
| Viscosity Range | 1 - 10,000 |
| Features | - Universal mixing impeller for a wide viscosity range - Variable blade angles (standard versions with 45 deg and 90 deg) |
| Diameter Ratio | 0.7 - 1.2 [d1 / d2] |
| Speed | 30 to 300 |
| Tip Speed | 1 to 5 [ft/s] |
Overall, paddle impellers are popular choices in industries where gentle to moderate mixing and agitation are required. They are reliable, relatively simple to operate, and suitable for a wide range of materials and processes.
Computational Fluid Dynamics (CFD) helps our engineering team study how the impeller moves liquid inside a tank before finalizing agitator speed, impeller diameter, shaft position and baffle arrangement. For industrial impellers, CFD visualization is useful for reviewing circulation, velocity distribution, turbulence level and possible dead zones.
At Premix Technologies, CFD review supports practical agitator and impeller selection for blending, solid suspension, heat transfer, gas dispersion, slurry handling and process mixing applications. The video below demonstrates how flow lines and velocity distribution can be reviewed to improve mixing efficiency and reduce uneven circulation inside the vessel.
CFD flow visualization for agitator and impeller mixing performance review.
Technical answers about selection, operation, materials, controls and application requirements.
Paddle Agitator in India is a mixing solution designed to create the required circulation, suspension, dispersion, blending or heat-transfer performance for its intended process.
It is used in process tanks or vessels where the product, tank geometry and mixing objective match the equipment duty.
Impeller selection depends on viscosity, density, solids, gas rate, shear sensitivity, tank geometry and the required flow pattern.
RPM, impeller diameter, power and torque are selected together using process properties, tank dimensions and the required mixing intensity.
Yes, when the complete operating range is included in the design basis and the motor, gearbox, shaft and impeller are checked at the worst condition.
Carbon steel, SS304, SS316, SS316L, duplex, coated steel and selected non-metallic constructions may be used depending on corrosion, abrasion and hygiene requirements.
Baffles, sealing and mounting depend on tank geometry, vortex risk, pressure, vacuum, chemical hazard and maintenance requirements.
Provide tank diameter and height, operating volume, density, viscosity, temperature, pressure, solids, process objective, material and seal requirements.
Premix Technologies designs Paddle Agitator in India from actual tank geometry, fluid properties, process duty and mechanical-design requirements.
