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Extruder Screw Elements are essential components for twin screw extruders in plastic industry. These screw elements are custom-made according to the specific needs of customers, featuring a screw diameter and L/D ratio that is customized to fit their requirements. The screws are made of materials with excellent corrosion resistance, ensuring their long service life and reliability. The screws are certificated by ISO, guaranteeing their quality and performance. With these screw elements, twin screw extruders can achieve better productivity and efficiency.
The key components of a twin-screw extruder's screw elements are as follows:
Pitch: The pitch refers to the distance between adjacent peak points on the screw element. The choice of pitch affects the extruder's output and extrusion quality. Typically, a larger pitch can increase the output but may impact extrusion quality.
Thread Depth: Thread depth is the height of the threads on the screw element. Its choice influences the material's plastic deformation and mixing during the extrusion process. Deeper threads can better mix and heat the material but may increase the extruder's power consumption.
Thread Profile: The profile shape of the screw element is crucial for the extrusion process. Common thread profiles include equal-depth threads, deep threads, shallow threads, etc., each having different extrusion characteristics. Selecting the appropriate thread profile for a specific application is essential.
Number and Arrangement of Threads: Twin-screw extruders typically have two screws with different numbers of threads and various arrangements such as co-rotating, counter-rotating, intermeshing, etc. The number and arrangement of threads impact material mixing and extrusion performance.
Clearance Between Threads: The gap between screw elements affects the extruder's material handling capability and extrusion quality. A smaller gap can enhance mixing but may increase mechanical wear, while a larger gap may reduce mixing effectiveness but decrease mechanical wear.
Materials and Coatings: Screw elements are usually made of high-strength alloy steel to withstand high-temperature and high-pressure environments. Additionally, some screw elements may undergo special surface treatments or coatings to improve wear resistance and corrosion resistance.
Temperature Control: Temperature control during the extrusion process is crucial for extrusion quality. Screw elements typically come with heating and cooling systems to ensure the material maintains the appropriate temperature during extrusion.
In summary, the key elements of screw elements in a twin-screw extruder include pitch, thread depth, thread profile, number and arrangement of threads, thread clearance, materials and coatings, and temperature control. The selection and adjustment of these elements directly impact the performance and production quality of the extruder.
Zhitian 85 Screw Elements are designed to meet the demands of plastic extrusion. Constructed from corrosion-resistant and wear-resistant Hip Alloy Steel, and treated with nitriding, these screws are able to provide reliable plasticizing performance for continuous operation. With a customized screw diameter and L/D ratio, customers can enjoy tailored solutions for their plastic extrusion needs.
Model Number: 85
Place of Origin: China
Minimum Order Quantity: 1
Packaging Details: wooden case
Delivery Time: 60
Screw diameter: Customized
Supplier: Factory Direct
Barrel Type: Twin-screw
Screw Type: Common Type
Zhitian Extruder Screw Elements are made of high-quality alloy steel, with unique screw segments and high-precision manufacturing to ensure quality and performance.
We offer factory direct supply, and our products are ISO:9001 certified. Minimum order quantity is 1 unit, and we provide wooden case packaging for delivery. Delivery time is 60 days.
We provide our customers with comprehensive technical support and service for our Extruder Screw Elements. We offer a wide range of services including:
Our team of experienced engineers and technicians is available to help you with any questions you may have. We strive to provide the highest level of service and support to ensure your extruder screw elements are operating efficiently and reliably.
Extruder Screw Elements are packaged and shipped in reinforced cardboard boxes or plastic crates, depending on the size, weight, and type of the product. The boxes are sealed with foam tape or bubble wrap. The product is securely placed inside the package to prevent damage during transit.
The shipping cost of the Extruder Screw Elements depends on the destination, as well as the size and weight of the package. Shipping can be done via land, sea, or air. We recommend the use of reliable, insured couriers for the delivery of the product.
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