The key to selecting a paddle mixer lies in considering the material characteristics, processing capacity, and process requirements.
I. Paddle Shape Selection
* **Flat Paddle:** Suitable for low-viscosity liquids (such as water and dilute solutions). Simple structure, but small mixing range.
* **Angled Paddle:** Blades tilted at 15°-45°, generating both vertical and horizontal flow. Suitable for medium-viscosity liquids (such as paints and sauces). Mixing efficiency is 15%-20% higher than flat paddle mixers.
* **Propeller Paddle:** Similar to small fan blades, generating strong axial flow. Suitable for mixing large volumes of liquids.
II. Material Selection
* **304 Stainless Steel:** Basic model, suitable for non-corrosive media.
* **316L Stainless Steel:** Highly corrosion-resistant, suitable for acidic chemical environments.
* **Carbon Steel with Anti-corrosion Coating:** Low cost but short lifespan, suitable for short-term use.
III. Speed and Power Matching
* **Low-viscosity liquids (such as water):** Speed 20-50 r/min, power 1.5-2.2 kW.
High-viscosity liquids (e.g., syrup): Rotation speed 10-30 r/min, power 3-5 kW.
IV. Applicable Scenarios
Food Industry: Requires sanitary-grade materials (easy to clean).
Chemical Industry: Requires corrosion resistance and leak prevention.
Environmental Water Treatment: Emphasizes resistance to sediment and ease of maintenance.
V. Installation and After-Sales Service
Installation: For small laboratory equipment, confirm that the interface matches the container size; for large industrial equipment, consider the stability of the support frame.
After-Sales Service: Prioritize manufacturers offering a "1-year warranty + regular maintenance" to avoid future disputes.
