The Reading Pretzel Filled Stick Extruder System creates sticks filled with a variety of soft fillings, like cheese, peanut butter or chocolate. The System consists of a Low Pressure Extruder and pump system that combine raw batches of dough and dough filling into a specifically shaped filled rope. The Extruder forces dough into a compression head where it flows around a nozzle containing filling. At the same time, a filling hopper discharges filling to a pump stand that meters the filling into the compression head on the Extruder. Both the dough and the filling exit the compression head through a die plate that gives the co-extruded dough rope its exterior shape.
Extruder die plates & compression head assemblies may be easily and quickly exchanged for product changeovers. The Filling System can be mated to an existing Extruder by adding the pump stand and changing the die and compression head assembly.
The extrusion housing on the Extruder is double walled and may be designed with an optional temperature control system to better manage the character of sensitive dough. Each extrusion unit is fed by an individual pump for specific filling flow control. The pumps, extrusion auger speeds, and general dough flow are all individually controlled at the operator interface screen.
The Filled Stick Extruder System is designed to meet the oven width requirements. Modular extrusion systems can be combined produce discharge widths up to 78″.