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Description
Stirring Shafts for Overhead Stirrers by VELP ScientificaDescription Code No Blades # Blades mm Shaft mm Length of Shaft mm Speed Range Viscosity Range Stirring shaft with floating blades, stainless steel A00001304 2 93 7 400 M H VL L Stirring shaft with folding blade, stainless steel A00001305 1 60 7 400 M H VL L Stirring shaft with fixed blade, stainless steel A00001306 1 50 7 400 M H VL L M Stirring shaft with propeller, stainless steel A00001307 3 60 7 400 M H VL L M Stirring shaft with paddle,six
| Description | Code No |
Blades # |
Blades Ø mm |
Shaft Ø mm |
Length of Shaft mm |
Speed Range |
Viscosity Range |
| Stirring shaft with floating blades, stainless steel | A00001304 | 2 | 93 | 7 | 400 | M-H | VL-L |
| Stirring shaft with folding blade, stainless steel | A00001305 | 1 | 60 | 7 | 400 | M-H | VL-L |
| Stirring shaft with fixed blade, stainless steel | A00001306 | 1 | 50 | 7 | 400 | M-H | VL-L-M |
| Stirring shaft with propeller, stainless steel | A00001307 | 3 | 60 | 7 | 400 | M-H | VL-L-M |
| Stirring shaft with paddle,six holes, stainless steel | A00001308 | 1 | 69 | 7 | 450 | L-M | L-M |
| Stirring shaft with turbine, stainless steel | A00001309 | 10 | 49 | 7 | 450 | M-H | M-H |
| Stirring shaft with turbo propeller, stainless steel | A00001310 | 3 | 46 | 7 | 450 | M-H | M-H |
| Stirring shaft with anchor, stainless steel | A00001311 | 2 | 45 | 8 | 450 | L-M | M-H |
Choosing the correct shaft: Stirring shafts must be chosen bearing in mind the stirrer power, the volume of substances to be stirred and its viscosity. The technical features and the application fields of the stirring shafts are summarized in the following tables:
| Speed Range | rpm | Viscosity Range | mPA*s | Viscosity mPa*s | Substance | ||
| Low (L) | < 250 | Very low (VL) | 0-100 | 1 | Water | ||
| Medium (M) | 250-800 | Low (L) | 100-1,000 | 5 | Milk | ||
| High (H) | > 800 | Medium (M) | 1,000-10,000 | 10 | Kerosene | ||
| High (H) | 10,000-100,000 | 100 | Lubricating oil | ||||
| 1,000 | Caster oil, Gilcerine | ||||||
| 7,000 | Refined Honey | ||||||
| 25,000 | Chocolate syrup | ||||||
| 50,000 | Ketchup | ||||||
| 100,000 | Molasses |
Stirring shaft with floating blades: The two blades that open as the speed rises generate an axial flow in the container, from the top towards the bottom. Particularly recommended for stirring in narrow-neck containers, e.g. flasks.
Stirring shaft with folding blade: The blade that automatically falls into line during rotation generates an axial flow in the container, from the top towards the bottom. Particularly recommended for stirring in narrow-neck containers.
Stirring shaft with fixed blade: It generates an axial flow in the container, from the top towards the bottom. Employment: Use at medium-high speed for whirling light solids, for flocculations, mixing thickening agents, stirring sludge, etc.
Stirring shaft with propeller: Standard stirring shaft. It generates an axial flow in the container with suction of the substance from the bottom towards the top and localized occurence of shearing forces.
Stirring shaft with 6-hole paddle: It generates a tangential flow with reduced turbulence and with gentle mixing of the product.
Stirring shaft with turbine blade: It generates a radial flow with suction of the product from the top towards the bottom, with high turbulence and high shearing forces.
Stirring shaft with turbo propeller: It generates an axial flow in the container with suction of the substance from the top towards the bottom with low shearing forces. Limited danger of any contact of the blade with the walls of the product’s container.
Stirring shaft with anchor: It generates a tangential flow with high shearing forces on the ends. The flow generated limits the possibility of sedimentation on the walls of the container.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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