More than 60 years of innovative mixing technology from Teka
For over 60 years, Teka Maschinenbau GmbH has been developing cutting-edge, innovative mixing equipment. The most reputable concrete producers in Germany, Europe and across the world use Teka planetary, turbine and pan-type mixers with and without agitators.
The company’s latest product release, the Teka THT high-performance turbine mixer with a patented mixing turbine, has become particularly popular. This mixer is mainly used for demanding and challenging concrete recipes and, even more importantly, where many different mixes and products need to be manufactured.
Perfectly suited to a wide range of mixing jobs and batch sizes
Developing the patented mixing turbine paved the way towards a new approach to mixing technology. The underlying design idea was to conceive a mixing system capable of mixing special concretes with high intensity and efficiency while using as few mixing tools as possible and allowing for a huge variety of batch sizes to be processed in a single mixer. This effort gave rise to a mixing system that not only meets these requirements but also further improves product quality, particularly in exceedingly complex mixing jobs, while reducing the overall process sequence by shortening mixing and discharge times. The small number of mixing tools and the specially designed turbine geometry also reduce mixer contamination and subsequent cleaning to a minimum.
Teka high-performance turbine mixers with innovative mixing technology are equipped with a patented mixing turbine that ensures high-intensity mixing of the batch while preventing particle destruction and thus leaving the grading curve undisturbed. The rotating side and discharge scrapers continuously feed material to the patented mixing turbine, which allows for high-intensity, quick mixing of the material within a very short time while attaining a very high degree of homogenization. One of the mixer’s main advantages is the option to process exceedingly small batches for custom products.
Just like the exceedingly successful Teka planetary mixer, the turbine mixer uses a true countercurrent mixing principle from a filling volume of 1,500 liters. The mixing star and turbine rotate in opposite directions and overlap like gear wheels in the mixing pan center. This results in the mixing tools continuously feeding material to each other, which ensures a very high mixing intensity within the shortest possible time. Furthermore, the mixing star and turbine run on different effective circuits, meaning that they rotate on different radii and thus overlap in the pan center. This working principle prevents “dead” zones in the mixer; it also originates from the globally acclaimed Teka planetary mixer. In addition, the mixing turbine is equipped with a scraper blade with self-cleaning effect. The mixing turbine and the scraper are tungsten carbide coated to ensure a long service life.
Key areas of application of the Teka turbine mixer
The Teka turbine mixer is predominantly used for the following special concretes or concrete producers:
Concretes with a very high ratio of ultra-fine aggregate particles, such as face mixes and self-compacting concrete
Tailor-made solutions
The THT range uses the tried-and-tested parts of the planetary mixer series. A new type designation was introduced in order to always choose the best possible combination. This designation is no longer based on rigid filling capacities; instead, it responds to the specific needs of the customer combined with the required components. It is thus possible to configure each mixer individually and to perfectly adjust it to the product to be mixed. The type designation includes the output of the drive motor, the number of mixing turbines and the pan size, as well as the types of gears used.
What does this mean for the operator?
Practice has proven that contamination and cleaning costs can be reduced to a minimum thanks to the scraper attached to the mixing turbine. This benefit is immensely important when it comes to frequent product and color changeovers. Low wear and the associated low costs as well as the limited amount of required cleaning result in low maintenance and servicing costs. The mixing turbine is also easily height-adjustable so that it can be optimally set to the pan bottom, which ensures very fast and clean emptying of residues.
Yet the new mixer also excels with its high energy efficiency since the motor output is optimally aligned with the batch and the specific mixing job. Different motor and gear options are available for the same mixing chamber sizes such that the motor outputs are utilized fully in order to limit energy consumption to the required minimum and to achieve a correspondingly high energy efficiency.