The Vitomix is a batch mixer with a conical vessel and two ribbon screws mounted on an orbit arm. Based on the proven mixing principles of the Vrieco Nauta Mixer, the Vitomix achieves faster mixing speeds. From gentle mixing like the Vrieco Nauta Mixer to higher speed mid shear mixing, the screw speeds can be adjusted for meet the product requirements. With a vessel designed for optimum mixing, the Vitomix has a shorter height compared to a Vrieco Nauta Mixer with comparable volume. Discharge of the material with almost no residue is possible with the conical vessel and the bottom discharge ball segment valve. A big access door on the vessel side for easy cleaning and inspection of the interior is provided. The Vitomix can be suited for the mixing of powders or powders and liquids. It is also suitable as a replacement for a Vrieco Nauta Mixer to increase capacity and for mixing where higher shear is required. it is also suited for mixing of large variety, small lot products.
Fig.1 Schematic structure
The Vitomix has a conical vessel with the drive system at the top. The drive rotates an orbit arm around the centerline of the vessel and the two ribbon screws at both ends of the arm. The ribbon screws increase in diameter from bottom to top. The angle of the conical vessel is bigger from the vertical compared to the Vrieco Nauta Mixer reducing the machine height.
The rotating screws lift the product upwards and the material farther from the screw flows down due to gravity. The rotating orbit arm and ribbon screws efficiently move the entire product promoting swift mixing. The tip speed of the ribbon screws are adjustable between 0.8 to 5 m/s and can be used for low speed, gentle mixing to high speed, mid shear mixing. At high speed the material bed is fluidized and fluidized mixing occurs.
Short mixing times
Achieves swift and homogenous mixing with an efficient mixing principle
Wide range of applications
Combines a gentle low shear mixer and a mid shear mixer in one machine
Easy discharge of material, no residue
The conical shape and the bottom discharge, makes material discharge simply and with no residue.
Easy to clean
The interior is a simple design with 2 ribbon screws. The big access door on the side of the vessel allows for full access to the interior for cleaning. Material changes are made simpler.
Height of the mixer is lower than a comparable volume Vrieco Nauta Mixer
No seals in product
With the drive system at the top of the machine, no shaft seals are inside the product. Damage to the shaft seals due to wear from material friction is minimized.