Heidolph Stainless Steel Stirrer Propellers and Blades for Overhead Stirrers
Hardly any technical process can do without a stirring process. The stirring tool and its precise placement in the stirring tank play a central role. Ideally, the stirrer shaft and the blades are arranged in the middle. Due to the geometry and dimensions of the blades, an optimal distance to the bottom of the vessel can be defined, which is decisive for goal-oriented work.
The shape of the stirring blade has a great influence on the type of motion within the vessel. It moves the medium in different primary flow directions (axial, radial, tangential), which, depending on the vessel, viscosity and composition of the medium (e.g. solid content), makes a considerable difference in achieving the desired homogeneity.
Each stirring task is different - just like the requirements for the stirring system you are looking for
| Model | BR 10 | BR 11 | BR 12 | BR 13 | PR-30 | PR 31 | PR 32 | PR 33 | TR 20 | TR 21 |
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| Type | Cross-Blade | Straight-Blade | Pivoting-Blade | Square-Blade | Pitched-Blade | Ringed Pitched-Blade | Ringed Pitched-Blade | Ringed Pitched-Blade | Radial-Flow | Radial-Flow |
| Blade size | 50 x 12 mm | 50 x 12mm | 60 x 15mm | 70 x 70mm | 58mm | 33mm | 45mm | 66mm | 28mm | 50mm |
| Length | 400 mm | 400mm | 400mm | 450mm | 400mm | 400mm | 400mm | 400mm | 400mm | 400mm |
| Material | stainless steel AISI 316Ti | stainless steel V4A | stainless steel V4A | stainless steel V4A | stainless steel V4A | stainless steel V4A | stainless steel V4A | stainless steel V4A | stainless steel V4A | stainless steel V4A |
| Shaft diameter | 8 mm | 8 mm | 8 mm | 8mm | 8mm | 8mm | 8mm | 8mm | 8mm | 8mm |
| Max. rotation speed | 2,000 rpm | 2,000 rpm | 2,000 rpm | 800 rpm | 2,000 rpm | 2,000 rpm | 2,000 rpm | 800 rpm | 2,000 rpm | 2,000 rpm |
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Due to its blade dimensions, the cross-blade impeller BR 10 is ideally suited for solutions, emulsions and suspensions in vessels with the following characteristics:
The cross-blade impeller BR 10 has a total length of 400 mm and is made of stainless steel. Its stirring shaft has a diameter of 8 mm. |
Due to its blade dimensions, the straight-blade impeller BR 11 is ideally suited for solutions, emulsions and suspensions in vessels with the following characteristics:
The straight-blade impeller BR 11 has a total length of 400 mm and is made of stainless steel. Its stirring shaft has a diameter of 8 mm |
Especially when using narrow-necked vessels, e.g. round-bottom flasks, a stirring tool with pivoting blades is used. Just like our pivoting-blade impeller BR 12. This blade impeller is ideal for dissolving and homogenizing in vessels with the following characteristics:
The pivoting-blade impeller BR 12 has a total length of 400 mm and is made of stainless steel. Its stirring shaft has a diameter of 8 mm |
Due to its blade dimensions, the square-blade impeller BR 13 is ideal for loosening and homogenizing in vessels with the following characteristics:
The square-blade impeller BR 13 has a total length of 450 mm and is made of stainless steel. Its stirring shaft has a diameter of 8 mm |
Due to its blade dimensions, the pitched-blade impeller PR 30 is ideal for solutions, emulsions and suspensions in vessels with the following characteristics:
The pitched-blade impeller PR 30 has a total length of 400 mm and is made of stainless steel. Its stirring shaft has a diameter of 8 mm. |
Due to its blade dimensions, the ringed pitched-blade impeller PR 31 is ideal for solutions, emulsions and suspensions in vessels with the following characteristics:
The ringed pitched-blade impeller PR 31 has a total length of 400 mm and is made of stainless steel. Its stirring shaft has a diameter of 8 mm. |
Due to its blade dimensions, the ringed pitched-blade impeller PR 32 is ideal for solutions, emulsions and suspensions in vessels with the following characteristics:
The ringed pitched-blade impeller PR 32 has a total length of 400 mm and is made of stainless steel. Its stirrer shaft has a diameter of 8 mm. |
Due to its blade dimensions, the ringed pitched-blade impeller PR 33 is ideal for solutions, emulsions and suspensions in vessels with the following characteristics:
The ringed pitched-blade impeller PR 33 has a total length of 400 mm and is made of stainless steel. Its stirrer shaft has a diameter of 8 mm. |
Due to the jagged shape of the stirrer blade, the radial flow impeller TR 20 is ideally suited for the construction of emulsions and the gassing or foaming of liquids in vessels with the following characteristics:
The radial-flow impeller TR 20 has a total length of 400 mm and is made of stainless steel. Its stirrer shaft has a diameter of 8 mm |
Due to the jagged shape of the stirrer blade, the radial flow impeller TR 21 is ideally suited for the construction of emulsions and the gassing or foaming of liquids in vessels with the following characteristics:
The radial-flow impeller TR 21 has a total length of 400 mm and is made of stainless steel. Its stirrer shaft has a diameter of 8 mm. |
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ManufacturerHeidolph Instruments GmbH
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Country of OriginGermany
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Type Of ImpellerCross-Blade, Pitched-Bladed and/or Ringed, Radial-Flow, Half-Moon, Straight-Blade, Pivoting-Blade, Square-Blade, Collapsible-Blade
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Stirrer Shaft ⌀ (mm)8
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Length (mm)400
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Blade Size (mm)50 x 12, 60 x 15, 70 x 70, 58, 33, 45, 66, 28, 50, 90 x 10
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Maximum Rotation Speed (rpm)2000, 800
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ModelBR 10, BR 11, BR 12, BR 13, BR 14, PR 30, PR 31, PR 32, PR 33, TR 20, TR 21
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MaterialStainless Steel, PTFE
