Propeller Stirrer

Propeller Stirrer

Propeller Stirrers are specially designed for efficient mixing of low to medium-viscosity liquids in glass reactors, vessels, and process systems. The combination of a borosilicate glass shaft and PTFE or Teflon propeller blades ensures chemical inertness, durability, and smooth operation.

The Propeller Stirrer is ideal for high-flow, low-shear mixing. It generates axial flow patterns, promoting uniform heat and mass transfer, making it widely used in laboratory, pilot, and industrial processes.

• Borosilicate glass shaft for thermal and chemical resistance
• PTFE/Teflon propeller blades for chemical inertness
• Suitable for low to medium viscosity liquids
• Works with vacuum or low-pressure systems
• Compatible with standard stirrer drives and control systems

Specifications

Cat. Ref.	Vessel (L)	L (mm)	L1 (mm)	Blade Diameter D (mm)	Shaft Diameter d (mm)
PS10	10	600	300	100	25
PS20	20	825	300	125	25
PS50*	50	1050	300	150	47
PS100*	100	1200	300	175	47
PS200*	200	1450	300	200	47
PS300	300	1275	350	275	59

Items marked with * are available for faster delivery.

Key Benefits

• Uniform axial mixing: Efficient circulation ensures homogeneous solutions
• High chemical resistance: Suitable for acids, bases, and solvents
• Low maintenance: Propeller blades are easy to clean and replace
• Durable construction: Borosilicate glass resists thermal shock and corrosion
• Flexible compatibility: Works with various stirrer drives and vessels

Applications

• Chemical industry: Neutralizations, blending, and low-viscosity reactions
• Pharmaceuticals: Formulation mixing, crystallization, and homogenization
• Food & Beverage: Mixing non-corrosive liquids
• Laboratories: Pilot-scale reaction setups
• Corrosive media handling: PTFE/Teflon blades prevent contamination

FAQs – Propeller Stirrer

Q1: What viscosity range is suitable for propeller stirrers?
A: Ideal for low to medium-viscosity liquids, typically <1000 cP.

Q2: Can it handle corrosive chemicals?
A: Yes, PTFE/Teflon blades are chemically inert and resist most acids, bases, and solvents.

Q3: Can the blades be replaced individually?
A: Yes, blades are modular and replaceable, reducing downtime.

Q4: What type of flow does the propeller create?
A: It generates axial flow, providing efficient circulation and mixing throughout the vessel.