Principle of Operation

The Nauta mixer is a convective mixer, utilizing a combination of axial, radial, and tangential mixing mechanisms to achieve thorough and precise results.

The mixer is loaded from the top, either manually, using a Big Bag, or via pneumatic or mechanical methods. The rotating, cantilevered (free-hanging) mixing screw conveys the product from the bottom of the vessel to the surface. Suspended from the orbital arm, the screw rotates along the inner vessel wall, promoting convective particle mixing and shear. As particles flow downward and are recirculated by gravity within the conical vessel, their speed increases as the vessel diameter narrows. This combination of actions delivers fast and intensive mixing with low power consumption and high accuracy.

The mixing duration depends on product characteristics, desired mixing accuracy, and batch size. The screw operates at an average speed of 70 rpm, while the orbital arm rotates at 1 to 2 rpm. The screw’s tip speed can range from 0.5 to 2 m/s, making the mixer suitable for all ATEX zones.

Low-Shear Batch Mixer

The Nauta mixer is a highly efficient, low-shear batch mixer specifically designed for processing segregative, free-flowing powders and pastes. It ensures gentle mixing while maintaining maximum accuracy without distorting the product, making it ideal for delicate materials and processes that demand precise results.

Beyond mixing, the Nauta mixer can also be used for heating, cooling, drying, and moistening. Additionally, it can function as an agitated hopper to feed dryers, such as fluid beds, with or without back mixing.

As a pioneer in mixing technology, Thanks to its high reliability and excellent performance, the Nauta mixer is a market leader in mixing technology and is used worldwide by thousands of customers for a wide range of applications.