Schäfer’s Backwaren GmbH, a daughter company of EDEKA Minden-Hannover, assigned Daxner with the engineering and fabrication of a complete raw material supply system.
The facility in Osterweddingen is Schäfer’s state-of-the-art production site and belongs to the most innovative producers of frozen baked goods in Germany. Currently, around 220 employees on four highly industrialized production lines produce bread rolls, croissants and Danish pastries.
The centralized plant control system enables complete process visualization and monitoring, starting from the raw material supply up to the packaging lines. Touch panels throughout the system enable operating the various processing machines locally.
Efficient raw material handling
Silo trucks fill the six outdoor silos and two indoor silos pneumatically. Meanwhile, the salt brine and component silos are filled over assigned inlets, which are suitable for sacks and Big bags.
The ingredients for each recipe are delivered directly above the kneaders. A pneumatic vacuum conveyor, supplying the ingredients from the silos fills the containers positioned above the kneaders.
The weighing of the recipe components takes place in the small weighing stations below the silos. To guarantee consistent product quality, the ingredients are weighed once more on each of the production lines.
Automated wheat sponge and sourdough production with continuous mixer and pipe “pig” cleaning system
To produce wheat sourdough or wheat sponge, the flour is conveyed from the raw material system to a receiver bin. Using the loss-in-weight feeder, a constant supply of material is guaranteed to the continuous mixer.
To produce a homogenous mass, the liquid components of the wheat pre-dough are conveyed to the continuous mixer via connection lines. By means of a time and temperature controlled system, the mixer can be operated directly at the station or via a computer in the production office.
Intelligent soaking system with preparation tank, storage tanks and pipe “pig” cleaning system
The liquid components of the soakers are heated up to the desired temperature by a water mixing system and reach the preparation tank through a pipe system. Afterwards, the loading cells transport seeds and grains to the swelling tanks. The time-controlled system can be operated centrally in the production office.
Furthermore, Daxner integrated an inline seeds and grains sprinkler unit.