What are the main types of industrial kneading systems from Werner & Pfleiderer?
Depending on the shape of the arm, three major types of kneading systems are produced by Werner & Pfleiderer. The first one is the inclined shaft kneading machine, which is commonly used by bakers. The second model is the spiral arm kneading machine, which has the shape of a corkscrew. It allows for rapid and efficient mixing of a larger quantity of dough, as even its kettle system is motorized. The kneading machine with two immersion arms is less popular than the first two. The movements of its arms imitate the manual kneading performed by a baker.
However, it is possible to find other models depending on the application. For example, the industrial kneading system uses two horizontal mixing shafts for mixing, kneading, or homogenizing food products (such as cookie dough). It is also referred to as a horizontal kneading machine. Its kettle is often double-walled to heat or cool the dough.
How are the twin-screw extruders from Werner & Pfleiderer classified for industrial bakery?
The twin-screw extrusion process, as the name suggests, uses two parallel rotating screws located in a cylindrical housing with an "8"-shaped cross-sectional area (one circle per screw). The twin-screw extruders can be classified according to two criteria:
The rotation direction of the two screws: The extruder is referred to as co-rotating when both screws have the same rotation direction. When the screws rotate in opposite directions, they are referred to as counter-rotating.
The intermeshing of the two screws: If the thread of one screw enters the screw channel of the other screw, the screws are referred to as intermeshing. If the threads of both screws face each other, the extruder is referred to as non-intermeshing twin-screw extruder (also known as tangential).
These two elements have a significant influence on the flow conditions. You can request the assistance of a Foeth technical consultant to obtain further information on a Werner & Pfleiderer twin-screw extruder or any other used machine.
Buy a used, compact, and cost-effective Werner & Pfleiderer twin-screw extruder.
