1. Stirrer material of construction: Glass, Stainless Steel or PTFE Lined.2. Stirrer Design: Impeller stirrer with blades, Vortex stirrer, Propeller Stirrer & anchor Stirrer.3. Stirring Drive: Non-flameproof or Flameproof stirrer drive, 192 RPM with Variable Frequency Drive.4. Stirring Assembly: Stirring Assembly with bellow seal or with mechanical seal. Stirrers are assembled in a vessel using a chuck, seal and a reducer. A typical arrangement of stirrer fitted in a vessel is shown in the diagram.