Caframo Lab Solutions®, PTFE Collapsible Impeller, Model CLS-A180


Price Range$271.00


A radial flow PTFE impeller for high speed, low viscosity mixing in narrow neck flasks. The blades are attached to an 8 mm (5/16”) diameter PTFE-coated shaft, fanning out with agitation to a maximum diameter of 40 mm (1 ½”). The stainless steel core of the shaft provides stability. PTFE (polytetrafluoroethylene) can be used under the most adverse conditions. This high performance coating is insoluble, non-contaminating and has exceptional thermal resistance. It is easy to clean, does not scratch other surfaces and is unbreakable.

Flow Pattern Radial
Blade Diameter 40 mm (1 ½”)
Shaft Length 400 mm (16”)
Shaft Diameter 8 mm (5/16”)
Material PTFE blades, with stainless steel core in shaft for stability
Weight 91 g (0.2 lb)

PTFE Collapsible Impeller, up to 40 mm (1 ⁹⁄₁₆ in) diameter blade


  • Features
    • PTFE blades
    • Collapsible blades
    • Stainless steel core in shaft
    • High heat resistance
    • Autoclavable
    • Scratch and chip resistant
    • Poor adhesion – materials release easily from impeller
    • One piece
  • Benefits
    • Excellent chemical (including acidic and caustic) resistance
    • Fits in narrow neck vessels and Erlenmeyer flasks
    • Provides stability to impeller
    • Suitable for heated processes
    • Good for biotechnology processes
    • Low risk of particles introduced to batch
    • Easy to clean
    • Quick to insert and begin mixing