What important role does screw barrel for plastic extruder machine play- Zhoushan Jiading Plastic Machinery Co., Ltd.

Screw barrels are critical components of any plastic extruder machine, responsible for transforming raw plastic materials into final product shapes. They play a pivotal role in the plastic extrusion process and manufacturers must ensure the quality and durability of each screw barrel for efficient production.

In the plastic extrusion process, the screw barrel is responsible for conveying the raw material through the machine and melting it down. The screw barrel is a combination of several components, including the screw, barrel, and heater bands. The two key components that determine the productivity and efficiency of a screw barrel are the quality of the barrel material and the quality of the screw design.

The barrel material should be selected based on the material type being used, with some common options including nitrided steel and bimetallic barrels. Nitrided steel is known for its durability and resistance to wear and abrasion, making it ideal for use with abrasive materials. Bimetallic barrels, on the other hand, use two different materials, with a harder material used on the outside and a softer material on the inside. This configuration allows for better resistance to wear while improving heat transfer and reducing energy consumption.

In terms of screw design, it is essential to consider the material being used and the desired end product shape. The three main types of screw design are the barrier screw, the mixing screw, and the general-purpose screw. Barrier screws create a distinct layer between the melted material and any un-melted material to produce quality results. Mixing screws use a dual-flighted design to create a homogenous mix of the material, improving the thermal and mechanical properties of the resulting product. General-purpose screws are used for a wide range of applications with no special requirements for mixing or melting.

Parallel cylindrical screws for PE PP sheet product

Parallel cylindrical screws for PE PP sheet product

Twin screw and barrel type: CINCINNATI, BATTENFELD, KRAUSSMAFFEI, BAUSANO, MAPLAN and AMUT model spares.

The screw of the series consists mainly of two parallel cylindrical screws, which rotate to the opposite direction. Parallel double screw rotational speed is low, less heat, shear stability of the materials in the barrel, uniform, screw of material conveying ability is strong, have good exhaust effect at the same time, is conducive to the stability of product quality.

The main applications: Includes PVC pipe & profile extrude, PP/PE sheet product.