The twin shaft paddle mixer is a piece of equipment commonly used for powder mixing and has a wide range of applications. It uses the high-speed rotation and interaction of the paddles to evenly mix powders of different components together, achieving an efficient and uniform mixing effect. It has the characteristics of uniform mixing, high efficiency, strong adaptability and easy operation. In the pharmaceutical, chemical, food, metallurgical and other industries, twin shaft paddle mixers play an important role, improving production efficiency and ensuring product quality. With the continuous advancement of technology, the design and performance of twin shaft paddle mixers are also constantly improved and innovated, bringing more possibilities and development space to the powder mixing process.
Double Shaft Paddle Mixers for powder mixing mainly have the following applications.
Chemical raw material powder: Like calcium carbonate powder, it is often used as a filler in the plastic, rubber and other industries. It can be evenly mixed with other additives in a double-shaft paddle mixer.Food raw material powder: For example, milk powder needs to be mixed with other powders such as nutritional enhancers and flavorings during the production process. The double-shaft paddle mixer can gently and evenly complete this mixing operation.
Medical raw material powder: In the production of medicines, the powder of active ingredients of medicines needs to be accurately mixed with the powder of auxiliary materials. The double-shaft paddle mixer can mix them evenly to ensure the accuracy of the dosage of the medicine and the stability of the efficacy.
Metal powder: In the fields of metal processing, 3D printing, etc., metal powders such as iron powder and aluminum powder often need to be mixed with additives to improve performance. The double-shaft paddle mixer can promote the uniform dispersion of metal powders to meet the requirements of subsequent processing.
Ceramic powder: In ceramic production, when ceramic powders such as kaolin are mixed with other additives, the double-shaft paddle mixer can make them fully blended.
The working principle of the twin shaft paddle mixer is to use the rotation and interaction of the paddles to achieve mixing. It usually consists of two horizontally mounted shafts and multiple paddles. When the equipment is started, the two shafts rotate at high speed in opposite directions, and the paddles continuously shear, fold, and spread the powder during the rotation to fully mix it. The design and layout of the paddles can be adjusted according to different mixing requirements to ensure uniformity and efficiency of mixing.
Efficient mixing: The double-shaft design of the double-shaft paddle mixer greatly improves its mixing efficiency. The two mixing shafts rotate in opposite directions, and the paddles are staggered, which can quickly flip and push the powder materials, allowing different powders to fully contact and fuse in a short time.
High mixing uniformity: The unique shape and arrangement of the paddles can produce complex material flow patterns during the mixing process, causing the powders to intersperse and convect in all directions and at multiple angles.
Wide range of applications: It can handle powders with good fluidity, and can also effectively mix powders with certain viscosity and agglomeration.
Low residue: The internal structure of the mixer is reasonably designed, the gap between the paddles and the barrel wall is small, and the material is not easy to accumulate and remain during the mixing process.
Strong equipment durability: It is usually made of high-quality steel, and the mixing shaft and paddles are specially treated with high strength and wear resistance. In the process of long-term and frequent mixing of powder materials, it can withstand large torque and impact.
| model | SJ-30 | SJ-32 | SJ-35 | SJ-40 | SJ-42 | SJ-46 | SJ-50 | SJ-60 |
| Center distance between two axes/mm | 300 | 320 | 350 | 400 | 420 | 460 | 500 | 600 |
| Spindle speed/（r/min） | 53 | 53 | 53 | 53 | 53 | 53 | 45 | 45 |
| Tank length/mm | 2000-4000 | 2000-4000 | 2000-4000 | 2000-4000 | 2000-4000 | 2000-4000 | 2000-4000 | 2000-4000 |
| Equipment capacity/m³ | >6-8 | >8-10 | >10-13 | >13-24 | >24-28 | >28-35 | >35-38 | >38-80 |
| Motor power/kW | 22 | 30 | 37 | 45 | 55 | 75 | 75 | 110 |
When choosing the best twin-shaft paddle mixer for powder mixing, you need to consider several factors, including the nature of the materials being mixed, the mixing effect required, and the scale of production.
V-Shaped Twin-Shaft Paddle Mixer: It has two shafts, each with paddles installed to form a V-shaped structure. This design helps to increase the mixing effect. It is suitable for mixing materials with smaller powder particles and different densities, and the mixing effect is relatively uniform.
Spiral Twin-Shaft Paddle Mixer: It has a spiral-shaped paddle that can achieve better mixing effect, especially for powder materials with higher viscosity. It is suitable for occasions where powders need to be evenly mixed and stirred, especially for materials with high viscosity.
High Shear Twin-Shaft Paddle Mixer: It has high-speed rotating paddles that can generate higher cutting and shear forces, and is suitable for powder materials that need to be mixed and dispersed quickly.
Surface treatment options: internal high-precision mirror polishing, external polishing options, matte or mirror external polishing are available. Matte polishing makes the appearance of the equipment more low-key and wear-resistant, which is suitable for scenes with certain requirements for appearance texture and complex use environment; mirror external polishing can make the equipment more shiny, which is more suitable for some enterprises that have requirements for the appearance display of the equipment.
Chopper configuration: equipped with a chopper, it can enhance the stirring effect during the mixing process, and effectively break up the block materials to ensure uniform mixing of the materials.
CIP system installed on demand: The CIP (cleaning in place) system can be installed according to user needs. It can automatically clean the inside of the mixing chamber without disassembling the equipment.
Heating/cooling jacket: Setting a heating or cooling jacket can accurately adjust the temperature of the material during mixing according to the requirements of the powder mixing process.
Cryogenic treatment (Cryogenic execution): Using cryogenic technology, the physical properties of the material can be changed, making some difficult-to-mix powders easier to mix evenly at low temperatures, while also improving the stability and performance of the product.
Packaging system for mixed products: The packaging system for matching mixed products can package the product immediately after mixing is completed, realizing integrated production and packaging operations.
Over the years, Dahan Machinery has focused on the research and development and manufacturing of powder mixing twin-shaft paddle mixers, creating products with mature technology and excellent performance. They are widely used in many industries such as chemical, food, medicine, mining, and building materials. The equipment is durable and the mixing effect is highly praised by customers. In terms of model diversity, there are large-scale equipment such as 2000L suitable for large-scale production enterprises, equipped with high-power motors, which can handle a large amount of powder materials at a time to meet the efficient mixing needs of continuous production, and small models such as 50L suitable for small processing plants or laboratories. It occupies a small area, is easy to operate and has low energy consumption, and can accurately complete small batch powder mixing tasks. If you also have mixing needs, please contact us for detailed information!
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