Key Points
Designed for feeding, degassing and material addition
Supports partial fill conditions and process flexibility
Modular configurations for complex extrusion processes
Open screw barrels are designed with functional openings to enable material feeding, devolatilization and multi-component integration during extrusion.
Unlike closed barrels, they operate under partially filled conditions, allowing gases, moisture and volatiles to be efficiently removed while supporting additional material input.
Their performance is governed by opening design, position within the screw configuration and coordination with conveying and mixing elements, ensuring stable operation and effective process control.
Plastic Compounding
Used for feeding, venting and additive dosing in engineering plastics and masterbatch production
Devolatilization Processes
Enables removal of moisture, solvents and volatiles through vented sections
Multi-Component Processing
Supports side feeding of fillers, fibers and additives during extrusion
Recycling & Reprocessing
Facilitates degassing and impurity removal in recycled material processing
We can help you:
Design optimized barrel configurations
Integrate feeding and devolatilization functions
Customize solutions for complex extrusion processes
Primary feeding barrel introducing raw materials into the extruder under controlled fill and stable conveying conditions.
Best suited for:
Main material feeding
Pellet and powder input
Stable process start
Barrel with vent openings enabling efficient removal of volatiles under controlled partial fill and pressure conditions.
Best suited for:
Devolatilization
Moisture removal
Vacuum venting sections
Barrel with side feeding port for controlled addition of fillers, fibers or additives during processing.
Best suited for:
Fiber reinforcement
Filler addition
Multi-component compounding
Integrated barrel combining feeding and venting functions to optimize space and enhance process flexibility.
Best suited for:
Compact configurations
Combined feeding and venting
Flexible process layouts
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