Conical Twin-Screw Extruder for Polymer Processing and Small-Batch Production

Conical Twin-Screw Extruder for Polymer Processing and Small-Batch Production

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Conical Twin-Screw Extruder for Polymer Processing and Small-Batch Production
  • Conical Twin-Screw Extruder for Polymer Processing and Small-Batch Production
Conical Twin-Screw Extruder for Polymer Processing and Small-Batch Production
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Conical Twin-Screw Extruder for Polymer Processing and Small-Batch Production

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QualiCTSE™ 20 Conical Twin-Screw Extruder for Polymer Processing and Small-Batch Production

The QualiCTSE™ 20 Conical Twin-Screw Extruder is a laboratory-scale extrusion system designed for precise mixing, plasticization, and small-batch processing of polymer resins. It is particularly suitable for PVC powder and other temperature-sensitive materials, providing controlled processing, consistent compound quality, and stable output for polymer research and product development.

Designed for flexibility and process control, the QualiCTSE™ 20 enables laboratories to evaluate different polymer formulations, additives, processing conditions, and extrusion parameters. It is well suited for developing flame-retardant resins, reinforced polymers, specialty compounds, and customized polymer materials based on specific performance requirements.

Key Applications

  • Small-batch production of PVC and other thermoplastic materials

  • Development of flame-retardant, reinforced, and specialty polymer resins

  • Pilot-scale testing for new product development

  • Polymer research, education, and laboratory training

  • Evaluation of new extrusion molds and processing parameters

  • Testing different polymer formulations and additives

With interchangeable extrusion molds, the QualiCTSE™ 20 can support the production and evaluation of different extruded forms, including pipes, profiles, and films. This flexible configuration makes it suitable for a wide range of polymer processing experiments and laboratory testing requirements.

Why Choose the QualiCTSE™ 20?

  • Precise process control for polymer research, material testing, and product development

  • Stable and uniform mixing for PVC and temperature-sensitive polymer materials

  • Small-batch processing for formulation development and laboratory evaluation

  • Flexible mold configuration for testing different product shapes and extrusion designs

  • Repeatable processing performance for consistent laboratory results

  • Suitable for research and education in polymer processing and extrusion technology

Whether you are developing custom polymer compounds, evaluating material processing behavior, testing additives, or conducting small-batch extrusion trials, the QualiCTSE™ 20 Conical Twin-Screw Extruder provides controlled processing and flexible configuration for modern polymer laboratories, research centers, educational institutions, and pilot-scale development.

Operating Principles & Extrusion Mechanics

The QualiCTSE™ 20 Conical Twin-Screw Extruder uses a counter-rotating positive-displacement extrusion process to provide controlled conveying, mixing, plasticization, and material processing. The conical twin screws guide polymer materials through enclosed, interlocking C-shaped pockets, supporting consistent material movement and processing throughout the extrusion chamber.

This mechanical configuration promotes uniform treatment of the polymer compound while helping maintain controlled processing conditions for PVC powders and other temperature-sensitive materials.

Core Mechanical Advantages

  • Uniform Residence Time: The controlled screw configuration promotes consistent material movement from the hopper through the extrusion chamber, helping reduce variations in residence time and processing conditions.

  • Even Heat Distribution: The integrated 5-zone electric heating system and RKC precision temperature controllers provide controlled temperature regulation across the extrusion process, making the system suitable for PVC powders, PLA, and other temperature-sensitive polymer materials.

  • Controlled Pressure Buildup: The extruder operates primarily under a starve-fed condition, with the screws partially filled at approximately 10–15% until the final section. Pressure increases toward the outlet and can be managed up to 100 MPa, supporting smooth and controlled melt extrusion.

Small-Batch Processing & Material Efficiency

The QualiCTSE™ 20 is designed for laboratory-scale polymer processing where material efficiency and flexible production capacity are important. Its small-batch extrusion capability allows researchers to evaluate experimental formulations, polymer compounds, additives, and processing conditions while minimizing material consumption.

Compared with large-scale extrusion equipment, this Conical Twin-Screw Extruder for Polymer Processing and Small-Batch Production provides a practical solution for research laboratories, formulation development, education, and pilot-scale testing.

Key processing benefits include:

  • Flexible Output Capacity: With an output range of 1 to 10 kg/h, the system supports different small-batch processing requirements while providing controlled extrusion, mixing, and heating conditions.

  • Adjustable Material Flow: The 1 to 200 rpm screw speed range allows users to adjust material conveying and processing conditions according to formulation requirements, supporting flexible extrusion trials and reduced material waste.

Advanced Computational Design & Modeling

The QualiCTSE™ 20 Conical Twin-Screw Extruder incorporates engineering principles based on fluid-flow analysis and digital modeling to optimize polymer conveying and mixing performance. As the 330 to 400 mm conical screws taper toward the extrusion outlet, the changing screw geometry increases internal stretching forces, helping break up material agglomerates and distribute fillers throughout the polymer compound.

Computational modeling also supports the evaluation of torque and melt temperature behavior, helping researchers establish controlled extrusion conditions and improve the consistency of experimental results.

The system provides:

  • Process Prediction Accuracy: Computational models help maintain torque and melt-temperature predictions within a 10% margin of error, supporting more controlled process development and laboratory analysis.

  • High-Temperature Capability: Type K thermocouples support standard operating temperatures up to 350°C, with an optional configuration available for temperatures up to 500°C.

Conical Twin-Screw Extruder for Polymer Processing and Small-Batch Production - QualiCTSE™ 20 Technical Specifications

Specification Details
Screw Diameter 20 mm / 40 mm
Screw Length 330 – 400 mm
Screw Speed Range 1 – 200 rpm
Screw Direction Counter-rotating (opposite directions)
Heating Method 5-zone electric heating
Maximum Temperature 350°C (optional: up to 500°C)
Temperature Control System RKC precision temperature controller
Temperature Sensors Type K thermocouples
Heating Power 3.7 kW
Output Capacity 1 – 10 kg/h
Pressure Range 0 – 100 MPa
Feed Speed Control Frequency conversion speed regulation
Feeding Method Screw metering feeding
Cooling Method Compressed air cooling

Delivery time varies upon stock availability. Our standard dispatch and shipping times are generally within 1 week, however for some high demand items the delivery may be extended to 2-3 weeks. If you require these items urgently please contact us to check accurate stock availability and to organize faster shipping methods.

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Important Delivery Information

Delivery time varies upon stock availability. Our standard dispatch and shipping times are generally within 1 week, however for some high demand items the delivery may be extended to 2-3 weeks.

Need it urgently? Contact us here to check stock and organize faster shipping.

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1. General
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