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Single Screw Extruder

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Description
The single-screw extruder is a common plastic processing machine, mainly consisting of a transmission device, extrusion section, feeding device, and control system. Its working principle involves the rotation of the screw, which conveys and plasticizes the material, and then forms it through the die. The screw and barrel are key components, typically made of high-speed alloy steel and treated with nitriding to achieve high wear resistance and corrosion resistance. It is widely used in the plastic processing industry, such as for the extrusion of pipes, sheets, films, profiles, blow molding, powder pelletizing, and recycling of regrind materials.
Based on the traditional single-screw extruder, Kitech machinery has developed a new type of high-efficiency single-screw extruder by optimizing the screw design, improving the transmission system, enhancing the heating and cooling efficiency, and strengthening the control system. The goal is to address the limitations of traditional single-screw extruders in terms of high output, low energy consumption, and high-precision processing, while maintaining the advantages of simple structure and low cost of single-screw extruders.

Optimizations of the High-Efficiency Single-Screw Extruder:

Transmission Device: Equipped with a hard-toothed gearbox and an AC or DC variable speed system, ensuring smooth operation.
Extrusion Section: The screw and barrel are the core components. The screw features a new structural design that optimizes melting and mixing effects, ensuring lower melting temperatures and higher output.
Heating and Cooling System: Fitted with cast copper or cast aluminum heaters, with the option to choose between air or water cooling to ensure precise temperature control.
Control System: Advanced electrical control system that enables precise control of screw speed, temperature, and pressure, ensuring stable and consistent product quality.

Features

High-Efficiency Mixing and Plasticizing: Improved screw structure enhances material mixing and plasticizing effects, ensuring lower melting temperatures and higher output.
Energy Efficiency: The use of an efficient transmission system and energy-saving design reduces energy consumption and operating costs.
High-Precision Control: Equipped with an advanced control system that can accurately control screw speed, temperature, and pressure, ensuring stable and consistent product quality.
Versatility: Suitable for processing a variety of plastic materials, including common thermoplastics such as PE, PP, and PS. Its flexible parameter adjustment capabilities also allow it to meet different production requirements.
Ease of Operation and Maintenance: Compact structure with fewer moving parts, resulting in lower maintenance needs, reduced downtime, and lower maintenance costs.

Technical Date

22-33D Series:

Model L/D Output (kg/h) HDPE100 Motor power(kW)
SJ25 22-33 1-3 2.2
SJ30 22-33 5-10 5.5
SJ35 22-33 15-20 7.5
SJ45 22-33 40-60 15-22
SJ55 22-33 50-80 30
SJ65 33 80-120 55
SJ75 33 180-280 110
SJ90 33 250-400 160
SJ120 33 800-950 280-315
SJ150 33 1200-1400 355

38-40D Series:

Model L/D Output (kg/h) HDPE100 Motor power(kW)
HSJ60 38-40 320-480 75-110
HSJ75 38-40 550-680 132-160
HSJ90 38-40 950-110 250-280
HSJ120 38-40 1250-1420 315-355
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