July 19, 2019
Amandus Kahl introduces new extruder family
After 20 years of experience in extrusion systems, Amandus Kahl has developed a new extruder product family in order to meet increasing requirements of the fast-growing fish feed and pet food markets.
The new family comes with four different machine sizes covering the whole range of performance from lab-scale up to 10 t/h industrial large-scale applications. All machines are available as machine-only or as turnkey extrusion lines comprising all required process steps like milling and mixing, steam conditioning, extrusion, drying, coating, cooling and packing.
The new family comes with the proven Amandus Kahl stop bolt technology for perfect mixing and venting in the first barrel section. Dedicated process zones for compaction, cooking and pumping assure high flexibility and various adjustment options. Exchangeable screw elements ensure perfect adaption to changing formulations and quality parameters.
These features are complemented by highly effective fine-control measures like screw speed adjustment, steam/water addition to the extruder barrel and individually controllable heating/cooling jackets – all adjustable during operation for direct product quality response. The combination of individually adjustable screw elements and the fine-control measures enables Amandus Kahl to satisfy its customers' requirements in the vast majority of cases. Complex and expensive additional equipment to influence expansion behaviour is not required, allowing customers to save investment as well as operational costs.
An operator-friendly machine was designed in mind: this is achieved by a double-hinge head connection, ensuring fast die changes and fast knife replacement. The frame-mounted touch-screen based operator panel complements the user-friendly design and gives access to all relevant operational data, settings and options during start up and operation.
Extensive prototype testing at Amandus Kahl's test centre in Reinbek near Hamburg showed good results in terms of product quality, capacity and process stability for the production of sinking as well as floating fish feed.
The first series machines are sold to countries in northern Africa, and commissioning is expected to be finished in early 2020.
Specific features include: newly designed base frame for easy machine alignment and integrated peripherals; good accessibility and therefore easy cleaning of outlet, die and product distribution system; fast knife and die change; knife-adjustment during operation; flexible adaption of linings, cooking and pumping elements; four separately controllable heating/cooling jackets; throughput depending on pellet diameter and feed formula (sinking fish feed up to 10 t/h; floating fish feed up to 8 t/h).
KAHL fish feed plants are equipped with the latest process technology, the core of which is the extrusion system with the extruder OEE and the process control system E5EP.