Axial-Flow Impellers

• Pitched Blade Paddle - Cut
  Blades are positioned at 45o Angle creating a recirculation pattern returning back to impeller hub. Baffles are provided to get effective flow pattern. This draws least power and has least velocity fluctuations. It has lowest micro-scale turbulence and lowest shear rate.
• Pitched-Blade Turbines
  Desired where high axial circulation rate is required. It is effective for rapid submerge of floating particulate solids. It draws most power and has highest micro-scale shear rate

Radial-Flow Impellers

• Curved Blade Turbine
  It gives low pumping capacity and high shear rates. It is used where solids get settled in reaction.
• Flat Blade Turbine
  Used in Low Viscosity product. Baffles are used as Vortex Breaker.

High-Efficiency Impellers, Hydrofoil

Nowadays High Efficiency Impeller is used. It is designed to Maximize Flow And Minimize Shear Rate. Generally baffles are used with the impeller.

Close-Clearance Impellers

• Anchor Impeller:
  Anchor is used where it is desired to have mixing energy concentrated out near the tank shell (usually in pseudo-plastic fluids ). It is used to obtain improved heat transfer for High Viscosity Product.
• Helix / Double Helix Impeller:
  It is used for product having Laminar Flow Pattern. It is closed clearance impeller. Double Helix Impeller is suitable for blending of liquids and solids from the surface. It is designed to move material up and down resulting in efficient heat transfer.Generally used where viscosity is more than 30000 cps.
• MIG Stirrer
  • Designed to get up and down movement to product. It draws less power.
  • New Agitator Requirement/Recommendation
  • Retrofitting of impeller geometry to the existing reactor for desired process results
  • Optimisation of mixing based on the process requirement
  • Optimisation of yield/batch time/heat transfer/mass transfer etc.
  • Energy efficient impellers for power saving
  • Specialised impellers for Gas Dispersion (Hydrogenation/Fermentation)
  • Specialised geometry for high viscosity application (Polymerization etc.)
  • Crystallization with improved crystal shapes and size
  • Reactor with solid/slurry contents