Stirrer Blades
Various types of stirrer blades are suited to different applications. The same type of stirrer is preferred in production-related laboratories as that which is used in production so that comparability may be ensured.
We produce and supply stirrer blades made of stainless steel, glass and other materials to your specification.
Metal stirrer blades may be provided with a thin plastic or glass coating in order to increase the media compatibility.
| Stirrer type | Preferred application | Speed range about (rpm)** | Preffered Flow | Viscosity limit approx. mPa∙s (cSt) | Diameter ratio (D/d) |
|---|---|---|---|---|---|
| Anchor stirrers | Where there is a wall covering, there is good heat exchange, strong shear flow, medium to highly viscous | 20…500 | tangential | 50,000 | 1.05…1.1 |
| Propeller stirrer | Good blending, swirl up of light solids, thickening agent | 200…1,800 | axial | 4,000 | 3…6 |
| Disk stirrers/turbo stirrers | Dispersing, gassing, strong shear flow | 300…1,500 | radial | 1,000 | 2…4 |
| Impeller agitator | Good blending | 500…1,500 | radial | 10,000 | 1.5…2 |
| MIG-stirrer | High mixture rate, strong shear flow, for low to medium-sized viscosities | 200…1,000 | axial | 10,000 | 1.05…1.5 |
| Toothed disk/ dissolver stirrers | Particle crushing | 1,000…3,000 | radial | 100,000 | 2…5 |
| Turbine stirrer | Highly viscous media, lacquers, medium to high rotational speeds | 400…2,200 | axial | 200,000 | 3…6 |
| Cross-beam agitator | Shear flow in several areas, liquids of average viscosity, good heat exchange | 400…800 | tangential | 10,000 | 1.1…2 |
| Diagonal blade stirrer | Good axial blending, avoidance of stratification | 500…2,500 | radial | 1,000 | 2.5…3.5 |
| Gat paddle agitator | Average viscosity, shear flow, good heat exchange | 200…700 | tangential | 5,000 | 1.4…2 |
| Flat-blade paddle agitator | Low rotational speed, strong shear flow, very gentle at low rotational speeds | 20…100 | tangential | 100 | 1.5…3 |
| Spiral/coil agitator | Powerful shear flow, for highly viscous liquids, suspensions, pastes | 50…200 | axial | 50,000 | 1.1…1.5 |
**for D approx. 20 cm
| Product Code | Description |
|---|---|
| IR-RBL-AN-rd-ws-wl-wd-bs | Anchor stirrer |
| IR-RBL-PR-rd-ws-wl-wd-bs | Propeller stirrer |
| IR-RBL-SC-rd-ws-wl-wd-bs | Disk/turbo stirrer |
| IR-RBL-IP-rd-ws-wl-wd-bs | Impeller agitator |
| IR-RBL-ZA-rd-ws-wl-wd-bs | Toothed disk/dissolver stirrer |
| IR-RBL-MI-rd-ws-wl-wd-bs | MIG-stirrer |
| IR-RBL-TU-rd-ws-wl-wd-bs | Turbine stirrer |
| IR-RBL-KR-rd-ws-wl-wd-bs | Cross-beam agitator |
| IR-RBL-ST-rd-ws-wl-wd-bs | Diagonal blade stirrer |
| IR-RBL-GI-rd-ws-wl-wd-bs | Gat paddle agitator |
| IR-RBL-BL-rd-ws-wl-wd-bs | Flat-blade paddle agitator |
| IR-RBL-SP-rd-ws-wl-wd-bs | Spiral/coil agitator |
| rd | Largest diameter in mm (d) |
|---|---|
| ws | Material = ES for stainless steel, GL for glass |
| wl | Shaft length in mm |
| wd | Shaft diameter in mm |
| bs | Coating = GL for glass coating, PFA for PFA-coating, PTFE for PTFE-coating |
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