For industries ranging from animal feed and chemicals to construction materials and food processing, achieving a perfectly homogeneous mix is non‑negotiable. The Double Shaft Paddle Mixer—also widely recognized as the Zero‑Gravity Mixer—represents the gold standard in powder and granular mixing technology.
This guide provides a comprehensive technical overview, detailed specifications, and actionable SEO insights to help you understand why this machine is the optimal choice for your production line.
The Double Shaft Paddle Mixer is a high‑precision, batch‑type industrial mixer designed for the rapid and uniform blending of powders, granules, and even small amounts of liquids. Its design is engineered to overcome the limitations of traditional gravity mixers by creating a "zero‑gravity" environment within the mixing chamber.
Animal Feed & Nutrition: Precise mixing of vitamins, minerals, and base feeds.
Chemical & Pesticide: Safe and consistent blending of chemical powders and compounds.
Construction Materials: Mixing dry‑mix mortars, thermal insulation mortars, and fiber‑reinforced materials.
Food & Pharmaceutical: Hygienic mixing for food ingredients and pharmaceutical powders.
Unlike simple ribbon blenders, the double shaft paddle mixer operates on a unique principle of mechanical fluidization. Two counter‑rotating shafts, fitted with paddles set at specific angles, rotate at high speeds.
This creates a "fluidized bed" or "zero‑gravity zone". In this state, particles are suspended and intermingle in a three‑dimensional motion (radial, axial, and circular) without the need for heavy mechanical pressure. This results in a highly efficient and gentle mixing action that is perfect for fragile particles or those with significant differences in density and particle size.
The powerful dual‑shaft design allows for a mixing cycle that typically takes only 1 to 3 minutes. This drastically reduces production time and energy consumption compared to conventional methods.
With a compact design and precise paddle geometry, the mixer achieves a mixing uniformity of up to 99%. Even materials with vastly different gravity, mesh sizes, and fluidity are mixed evenly.
The clearance between the paddles and the mixing chamber wall is meticulously controlled, usually between 2 to 5mm, minimizing material residue and ensuring a clean discharge. The mixing tank is fully welded and polished with no exposed screws or nuts to eliminate dead corners.
Liquid Addition: Nozzles can be integrated for the precise introduction of liquids into powders.
Fiber Dispersion: A high‑speed chopper (flying knife) can be added to break down agglomerates and evenly disperse fibers in construction materials.
Abrasion Resistance: For hard‑to‑mix materials, the paddles can be equipped with wear‑resistant plates to extend the machine's service life.
The machine is typically constructed from stainless steel (SUS304, 316L) or carbon steel, depending on application requirements. All surfaces in contact with the material are polished to ensure hygiene and prevent contamination.
Below are typical parameters for the Double Shaft Paddle Mixer series. Please note that full customization is available to meet specific capacity and material processing needs.
| Model | Effective Volume (L) | Loading Coefficient | Power (kW) | Turning Speed (rpm) | Overall Size (mm) | Approx. Weight (kg) |
| TDW‑300 | 300 | 0.6‑0.8 | 5.5‑7.5 | 53 | 1330 x 1130 x 1030 | ~660 |
| TDW‑1000 | 1000 | 0.6‑0.8 | 11 | 45 | 1730 x 1590 x 1380 | ~1380 |
| TDW‑2000 | 2000 | 0.6‑0.8 | 18.5 | 39 | 2120 x 2000 x 1630 | ~2350 |
| TDW‑5000 | 5000 | 0.6‑0.8 | 37‑55 | 16‑60 | Customizable | ~4000 |
| TDW‑10000 | 10000 | 0.6‑0.8 | 55‑90 | Customizable | Customizable | Customizable |
Note: Electrical configurations are available for 3‑phase 208‑415V, 50/60Hz power supplies.
Engineered for Performance: Our mixers are designed with precision gearboxes and direct‑drive connections to ensure reliable operation and a long service life.
Superior Sealing Technology: Patented sealing mechanisms for the rotating shafts and discharge ports prevent material leakage, ensuring a clean and safe working environment.
Flexible Discharge Options: Equipped with pneumatic or manual flap valves that seamlessly integrate into the mixing chamber for rapid, residue‑free discharge.
Global Compliance: Our machines are built to meet international standards and are available with CE certification.
The Double Shaft Paddle Mixer is more than just a piece of equipment; it's a comprehensive solution for achieving superior product quality, operational efficiency, and cost savings. Whether you are mixing poultry feed, dry‑mix mortar, or fine chemicals, this machine offers the reliability and performance required for modern industrial production.
Contact us today to discuss your specific material mixing requirements. Our engineering team can help you select or customize the perfect model for your application.
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