Screw Barrel / Conical Twin Screw Barrel / Extruder Screw Barrel For Pipe Extrusion

High Quality Screw Barrel/Conical Twin Screw Barrel/Extruder Screw Barrel for Pipe Extrusion

1 . Descriptions

Twin screw barrel is gradually adopted by many manufacturers because of its high efficiency. Compared with single screw barrel, twin screw barrel has higher requirements for machining clearance. Our company has a professional team to help users solve design problems, and can also process according to the samples or drawings provided by customers.

Plastic extrusion is a manufacturing process that involves melting and shaping plastic materials into a continuous profile or shape using an extruder machine. The plastic materials are fed into the extruder through a hopper and then melted by a heating element, which is typically a single screw or a twin screw.

There are various types of plastic materials used in plastic extrusion, including PE (polyethylene), PS (polystyrene), PC (polycarbonate), ABS (acrylonitrile butadiene styrene), PET (polyethylene terephthalate), PP (polypropylene), and PVC (polyvinyl chloride).

The type of plastic extruder machine used in the manufacturing process depends on the type of plastic material being processed and the desired end-product. For example, a single screw barrel extruder is typically used for processing materials such as PE, PS, PC, ABS, PET, and PP, while a conical twin screw barrel extruder or parallel twin screw barrel extruder is used for processing PVC.

There are many manufacturers of plastic extruder machines that produce single screw barrel extruders, conical twin screw barrel extruders, and parallel twin screw barrel extruders. Some popular manufacturers include KraussMaffei, Battenfeld-Cincinnati, Milacron, Toshiba Machine, and Coperion.

Size and capacity

Here is list of our general design data, which may be updated in some different circumstance.

2 . Brief Application 

The Conical Twin Screw Barrel is a type of extruder screw and barrel that is commonly used in the plastic extrusion industry. It is specifically designed for processing materials such as PVC (polyvinyl chloride), which is a thermoplastic polymer that requires high temperatures and high shear forces to melt and process.

The Conical Twin Screw Barrel is used in a variety of plastic extrusion applications, including:

1. Profile extrusion: This involves creating plastic profiles of various shapes and sizes, such as window frames, door frames, and decking.

2. Pipe and tubing extrusion: This involves creating plastic pipes and tubing of various sizes and shapes, such as water pipes, gas pipes, and electrical conduits.

3. Sheet extrusion: This involves creating plastic sheets of various thicknesses and sizes, such as plastic film, roofing sheets, and wall panels.

4. Cable and wire coating: This involves applying a plastic coating to wires and cables to protect them from damage and improve their performance.

The Conical Twin Screw Barrel is preferred over other types of extruder screws and barrels for processing PVC because it provides better mixing and melting capabilities, which results in a more uniform and consistent product. It also has a longer service life compared to other types of screws and barrels, which makes it a more cost-effective option in the long run.

3 . Features:

The Conical Twin Screw Barrel is a type of extruder screw and barrel that has several unique features that make it ideal for processing PVC and other thermoplastic materials. Some of these features include:

1. Conical design: The Conical Twin Screw Barrel has a tapered or conical design, which allows for better material mixing and melting. The geometry of the barrel provides a longer processing length, which results in improved melting and dispersion of the plastic material.

2. High shear forces: The Conical Twin Screw Barrel is designed to generate high shear forces, which are required to melt and process PVC. The high shear forces are achieved through the use of a tight screw pitch and a high screw speed.

3. Self-cleaning: The Conical Twin Screw Barrel has a self-cleaning design that helps to prevent material buildup and reduces the need for frequent cleaning. The tapered design of the barrel allows for more efficient material flow and reduces the risk of material stagnation.

4. Wear-resistant: The Conical Twin Screw Barrel is constructed of high-quality materials that are wear-resistant and durable. The use of high-grade alloy steel and special surface treatments such as nitriding or bimetallic coatings ensures that the barrel has a long service life.

5. Versatility: The Conical Twin Screw Barrel can be used in a wide range of plastic extrusion applications, including profile extrusion, pipe and tubing extrusion, sheet extrusion, and cable and wire coating. Its versatility makes it a popular choice for plastic extrusion manufacturers.

Overall, the Conical Twin Screw Barrel's unique design and features make it an efficient and cost-effective option for processing PVC and other thermoplastic materials.

4 . Screw&barrel use material