Extruder Open Screw Barrels
Product Name: Extruder Open Screw Barrels
Model：φ11 mm ~φ350mm
Applicable Brands：Coperion, Leistritz, KraussMaffei, JSW, Toshiba, Baker Perkins, SM Platek, Wenger,Clextral, Bühler，BUSS，etc.
Material: 45 Steel, 38CrMoAlA, Hastelloy C，etc.
Properties:Wear-resisting, Corrode-resisting and Durable
Structural Features:
Opening Layout：The barrel is equipped with one or more openings on the top or side, which can be used for main feeding, side feeding, or venting respectively. The position of the openings is matched to their functions (e.g., top openings facilitate gravity feeding, while side openings are adapted to side feeder devices).
Figure-8 Channel：Each barrel section features a figure-8 shaped internal channel through which the screw shafts pass. This design ensures effective conveying and mixing of materials by maintaining close contact between the screws and the barrel wall.
Types：
Open Feeding Barrel
Features a top opening, primarily used for feeding and venting. It is suitable for gravity feeding of bulk materials and facilitates the discharge of volatile substances.
Closed Side-feeding Barrel
Has no opening on the top; instead, a side opening connects to a side feeder. This design focuses on side feeding functions and reduces material splashing.
Top + Side Opening Barrel
Integrates a top opening (for venting) and a side opening (for side feeding). It is suitable for compact processes that require both devolatilization and multi-material addition.
Application Fields
Plastic Pelletizing：Used in the production of films, sheets, profiles, pipes, and containers for the construction, automotive, and packaging industries. The openings facilitate material addition and volatile removal, ensuring product quality.
Paper Industry：Contributes to high-capacity and high-quality papermaking processes by enhancing efficiency through optimized material handling.
Cable Industry：Ensures uniform mixing and extrusion of cable materials, which is critical for maintaining the mechanical and electrical performance of cables during manufacturing.
Compounding:Widely applied in polymer compounding processes, including polyolefin compounds, engineering plastic compounds, masterbatch compounds, thermoplastic elastomers, and wood-plastic composite compounds. The multi-opening design enables precise additive incorporation and dispersion.
Extruder Open Screw Barrels
Product Name: Extruder Open Screw Barrels
Model：φ11 mm ~φ350mm
Applicable Brands：Coperion, Leistritz, KraussMaffei, JSW, Toshiba, Baker Perkins, SM Platek, Wenger,Clextral, Bühler，BUSS，etc.
Material: 45 Steel, 38CrMoAlA, Hastelloy C，etc.
Properties:Wear-resisting, Corrode-resisting and Durable
Structural Features:
Opening Layout：The barrel is equipped with one or more openings on the top or side, which can be used for main feeding, side feeding, or venting respectively. The position of the openings is matched to their functions (e.g., top openings facilitate gravity feeding, while side openings are adapted to side feeder devices).
Figure-8 Channel：Each barrel section features a figure-8 shaped internal channel through which the screw shafts pass. This design ensures effective conveying and mixing of materials by maintaining close contact between the screws and the barrel wall.
Types：
Open Feeding Barrel
Features a top opening, primarily used for feeding and venting. It is suitable for gravity feeding of bulk materials and facilitates the discharge of volatile substances.
Closed Side-feeding Barrel
Has no opening on the top; instead, a side opening connects to a side feeder. This design focuses on side feeding functions and reduces material splashing.
Top + Side Opening Barrel
Integrates a top opening (for venting) and a side opening (for side feeding). It is suitable for compact processes that require both devolatilization and multi-material addition.
Application Fields
Plastic Pelletizing：Used in the production of films, sheets, profiles, pipes, and containers for the construction, automotive, and packaging industries. The openings facilitate material addition and volatile removal, ensuring product quality.
Paper Industry：Contributes to high-capacity and high-quality papermaking processes by enhancing efficiency through optimized material handling.
Cable Industry：Ensures uniform mixing and extrusion of cable materials, which is critical for maintaining the mechanical and electrical performance of cables during manufacturing.
Compounding:Widely applied in polymer compounding processes, including polyolefin compounds, engineering plastic compounds, masterbatch compounds, thermoplastic elastomers, and wood-plastic composite compounds. The multi-opening design enables precise additive incorporation and dispersion.
