Backaldrin gets the mixture right

To keep a firm hold on our quality leadership, we use only the latest technology.

This starts with unparalleled dosing and mixing technology,” says Peter Augendopler, who owns Backaldrin and developed Kornspitz.

Under his leadership, the company has gained significance all over Europe.

Picture: Bag intake system with control screens

New production systems are an investment in the future
Two years ago, as an investment in the company’s future, the innovative baking ingredient manufacturer set its eye on expanding its existing capacity and ensuring its technological advantage: The goal was to increase output with a new, state-of-the-art production system.

Daxner: Innovation and sustainability
The company chose Daxner Bulk Solids Technology in Wels, Austria, as their technology partner. Daxner convinced with an innovative, sustainable solution: A multi-purpose system with three separate mixing lines. For two years now, it has proven itself to the customer’s complete satisfaction.

Trust based on years of partnership
When the project was awarded, positive experience in collaboration over many years made Daxner the right choice. Backaldrin chose a proven, reliable partner, which meant an important safety factor in such a large investment.

A convincing design
For the new production system and its associated requirements, Daxner presented a convincing, well-thought-out overall design. In the project planning phase, it won the unanimous approval of the Backaldrin project team headed by Dr. Gero Nitsche, CEO, and including the heads of quality assurance, technology and production. This made Daxner number one, ahead of several leading European providers invited to submit proposals.

The latest mixing technology: Daxner multi-purpose system
With the multi-purpose system, Daxner - as a specialist in bulk solids technology - developed a complete solution that ensures top-quality products along with great production flexibility and economy. 

Based on a CAD system design, about 2,000 hours of planning resulted in a system that automates the entire production process, including storage and discharging, dosing and weighing, feeding and mixing, all the way to packaging.

This was done by Daxner project engineers under the very experienced leadership of Ernst Mair and in close collaboration with the Backaldrin team.

Due to the comprehensiveness of the task, and the dimensions of the project, the development process involved specialists from other fields.

Picture: Weighing bins with vibro bin dischargers.

These included controls and electrical technology, steel construction, mixing and bag filling technology.

Meeting the highest demands
There is no question that the Daxner multi-purpose system also meets standards such as the HACCP criteria and regulations according to ATEX. It incorporates not only product safety, but also traceability of raw materials and batches — plus, it is very easy to clean. Equally important to its performance are gentle material and product handling with pneumatic transfer systems, conditioned transfer air, and the technology used for the mixing process. The mixing process combines high-precision mixing and simultaneously gentle product handling. 

One system, a multitude of products
The multi-purpose system consists of three mixing lines that allow a single production system to produce a wide range of products such as convenience mixes (such as Kornspitz mix), fine baked goods and fillings. A special challenge is the wide diversity of raw materials used: From very sticky to shooting, heavily fluidizing bulk materials, there is a wide range of varied characteristics that complicate handling. It’s a problem that Daxner Bulk Solids Technology have well in hand. 

From raw materials to finished baking ingredients
The raw materials for the final products are stored in external silos. (These and the building itself already existed when the project began. They have been included in the development of the solution.)

Pneumatic conveying takes a wide array of components into the day silos, including wheat meal, spelt flour, rye meal and granulated sugar. All silos and all bins have a weighing equipment that continuously monitors the filling level. The 32 silos have capacities up to 12 m3 and can also be manually loaded with bags by a total of three bag dump stations with control screens. Vibro bin dischargers handle the discharge of the products. Dosing screw conveyors move the product to the weighing bins. For both high-volume and very precise dosing, separate coarse and fine dosing screw conveyors are used.

The weighing of raw materials takes place in the weighing bins, from where the product is brought to the respective preliminary mixing bin of the three separate 2,500-litre batch mixers. In front of each batch mixer there is a bag dump station with weighing equipment to feed minor bagged ingredients. After successful mixing, the finished products reach the post mixing bins. For fatty baking ingredients, rotary bin dischargers are used. The finished products are stored in an automated pallet storage and retrieval system.