Two Screw Extruder

Two screw extruder is a type of plastic processing and extrusion machinery that is commonly used to manufacture plastic pipes, sheets, profiles, and other goods. This device employs two screws to heat, melt, combine, and extrude raw materials through a die.
 

Model: SJZ-55/120

Screw size: 55/120mm

Drive motor power: 22KW

Screw speed: 34.9RPM

Screw Qty: 2pcs

Capacity: 150KG/H

Center height: 1050mm

The Two Screw Extruder operates by transporting, melting, mixing, and shaping plastic materials. Plastic resin is loaded into a hopper at one end of the extruder. From there, it enters the barrel, which includes two screws that rotate in the same or opposite direction.
As the screws rotate, the resin moves along the barrel. The rotation of the screws exerts a combination of shear, compression, and kneading forces on the resin. These forces cause the resin to melt as a result of friction and the barrel's external heating.
The screw movement fully mixes and homogenizes the molten resin. This mixing is essential for maintaining consistent product quality, particularly when adding additives or blending various polymers.
Finally, the well-mixed and molten resin is driven through a die at the barrel's end to form the material's ultimate shape, which may be a tube, profile, sheet, or film. The extruded product is cooled and consolidated to produce the required end product.
 

1. Ability to process a variety of materials with excellent consistency and quality.
2. Highly flexible and able to customize the production process to meet its specific needs.
3. Energy efficiency. Minimize energy consumption, reduce operating costs and help promote a more sustainable manufacturing environment.
4. Easy to operate and maintain. The user-friendly interface and intuitive controls make it easy for operators to set up and run the machine, and the durable construction and high-quality components ensure long-term reliable and consistent performance.

1. Material Selection: varying resins have varying melting temperatures, viscosities, and processing properties, which must be addressed while configuring the extruder and choosing processing parameters.
2. Screw Design and Configuration: The screw design and configuration are determined by the individual application and the type of material being processed.
3. Temperature Control: The barrel, screw, and die temperatures must all be carefully monitored and adjusted to ensure that the plastic resin is melted and processed optimally.
4. Maintenance and Cleaning: To guarantee that the twin-screw extruder operates reliably and has a long service life, it must be maintained and cleaned regularly.
5. Operator Training: The operator must be familiar with the machine's controls, safety protocols, and maintenance requirements in order to avoid accidents and assure consistent product quality.
 

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