Stirrer Heads

The 4-blade propeller stirrers provide axial flow and create increasing shear forces at higher stirring speeds. Recommended for medium to high speed operations.

The stirrer shafts consist of a PTFE-jacketed, stainless steel shaft and a stirrer paddle made of solid PTFE. The stainless steel core assures stability of the stirrer shaft and allows safe attachment of the stirrer chuck. Thanks to the thick PTFE coat and the paddle made of solid PTFE, the medium will only come into contact with PTFE. High chemical resistance makes it almost universally suitable. PTFE is extremely nonstick so that residues are repelled from shaft and paddle. The stirrer shafts are similar in size to (KPG) glass stirring rods and are therefore interchangeable easily.

Operating temperature: -200°C to +250°C

Additional sizes and accessories are available on request.
Information on the mixing effects of the different stirring geometries can be found in the descriptions of the stainless steel stirring rotors.
The semi-circular shape of the paddle is ideal for mixing in round-bottom flasks. The pivoting blade allows insertion into vessels with narrow necks and/or ground joints.

The dissolver stirrers create a radial flow with high turbulence. The mixture is drawn from top to bottom. High shear forces are created at the dissolver disk, which provides effective particle reduction. Recommended for medium to high speed operations.

With R 270 bosshead.

Powerful Stirring

Shaft diameter: 8mm

Blade and Half-Moon Impeller

• These impellers are recommended for applications which require an average speed
• For mixing products with average viscosity
• Models BR 12, BR 14 and HR 18 come with collapsible blade for narrow neck vessels

• These impellers are recommended for applications which require an average or high speed
• For mixing products with medium or high viscosity
• Excellent mixing properties for homogenisation and suspensions
• These models create an axial flow

• These impellers are recommended for applications which require an average speed
• For mixing products with average viscosity up to <500mPas
• Ideal for gassing of liquids
• These impellers create a radial flow

• These impellers are recommended for applications which require a low speed
• For mixing products with medium or high viscosity

Stainless steel 1.4301. With screwthread fitting as outlined below.

Stable stands with H-shaped base. Stands have a levelling screw to compensate for unevenness on the laboratory bench. Max. load 10 kg.

Plate stands with slip resistant foil. Max. load 5 kg.