Twin-screw extruder barrel
As the core component of the twin-screw extruder, the extruder barrel works in precise coordination with the screw to jointly complete the conveying, compression, shearing, melting, and puffing of materials. The screw rotates inside the barrel to push the material forward, while the external heating of the barrel transfers heat. Combined with the gradual reduction of the screw channel volume, the material is fully mixed and melted into a viscous flow state under high temperature and high pressure, and then extruded and shaped through the die.
Barrels and screws operate under high temperature, high pressure, and high wear conditions for extended periods, making them vulnerable components. Jinan Datong provides high-quality original barrel accessories with strict material selection and precision machining to ensure dimensional accuracy and inner surface smoothness, guaranteeing precise fit with the screws and ensuring the continuous and stable operation of the extruder. The company supplies a full range of original spare parts including barrels, screws, blades, and molds all year round, with reliable quality and competitive prices. Inquiries and orders are welcome.
The barrel, like the screw in the extrusion system, is an important component of the twin-screw extruder, and due to its working nature, the barrel is also a wear part.
The barrel and screw work in coordination, with the screw positioned inside the barrel and rotating within it. The rotation of the screw drives the material forward inside the barrel, while heat is conducted from the outside of the barrel to the material inside. Additionally, as the volume of the screw threads gradually decreases, the material in the screw channels is subjected to various forces such as compression, expansion, flipping, and shearing, resulting in uniform mixing and reshaping. As the material moves toward the front of the barrel, it gradually melts into a viscous flow state, completing the expansion process. The coordinated action of the barrel and screw ensures continuous extrusion, expansion, and molding of the raw material during production.
Jinan Datong Machinery Equipment Co., Ltd. produces various feed extrusion machinery and food extrusion machinery, and also provides accessories for extruders and supporting equipment, such as barrels, screws, blades, molds, etc.
