How Double Planetary Mixers Handle Challenging Materials in Industrial Settings

In the harsh environment of fine chemical manufacturing, such treatment of difficult to handle feed materials is a daily requirement. From high-viscosity polymers, to shear-sensitive formulations, the perfect homogeneous blend is a must for successful product. At RUMI Electromechanical Technology Co., Ltd, we do nothing but produce the best-of-the-breed production equipment and turnkey solutions for these occasions. The double planetary mixer is one of our signature technologies, pivotal for processing most challenging materials.

The Engineering Principle Behind the Power

The double planetary mixer takes its name from its accompanying mixing action. Two sets of multispeed (usually sigmoid blades) stirrers rotate about their own axes and orbit the central axis of the mixing vessel. Both movements of this complicated fly action produce a very effective mixing pattern. The stingers are continuously moved along the pot wall to contact with every particle of the material. It is an advantageous mechanical design for thick, sticky or abrasive materials that cannot be processed in the conventional mixers with dead spots due to intense kneading and shearing.

Tackling High-Viscosity and Abrasive Formulations

The double planetary mixer is especially known for accommodating high viscosity formulations, many in excess of 1 million centipoise. That makes it well suited to the industries we service, including adhesives, sealants and some advanced coatings. The high torque drive system and durable blades are made for mixing up large batches of thick thin set, grout, mastic, mortar or drywall joint compound. In addition, for abrasive goods such as pigmented products or some mineral fillers the mixers may have worn-resistant contact surfaces (or liners) to save wear and prolong life; so they maintain all of these good features plus keep products pure.

Gentle Yet Thorough Handling of Sensitive Products

The double planetary mixer is, however an extremely versatile machine. The blade speed and configuration can be adjusted so that it is suitable for shear-sensitive materials such as new materials or some chemical syntheses. The flow of grooves is stress-free and gently folds and stretches the batch, resulting in uniform dispersion and reaction without any damage to fragile molecular structures. This controlled mixing environment is important for achieving certain desirable properties of the final product, such as clarity, conductivity, tensile strength, etc.

A Key Component in Integrated Plant Solutions

At Rumi, we see equipment as an element of a wider system. A double planetary mixer is seldom a standalone machine. We embed it in complete solutions that can comprise of jacketed vessels for heating and cooling, vacuum systems for deaeration as well as automatic control for accurate process duplication. Our turn-key offering, which encompasses everything from design engineering and equipment manufacturing to installation and project management, allows the mixer to be fully integrated into your production line for optimal performance. Such an integrated approach ensures the processing of difficult materials is not only feasible, but scalable, repeatable and perform efficient.

Finally, the double planetary mixer is an engineered solution to a processing problem. Combining power, precision and versatility the mixer makes it an essential piece of equipment for manufactures in the fine chemical industry working with difficult products. By using this technology as an element of an entire Rumi system, manufacturers can expect improved product quality and production reliability.