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

Operating Principles & Extrusion Mechanics

Standard single-screw drag-flow often cooks and degrades sensitive polymers. The QualiCTSE™ 20 Conical Twin-Screw Extruder solves this by utilizing a counter-rotating positive-displacement method, guiding your material through closed, interlocking C-shaped pockets. 

This physical design ensures every millimeter of your compound receives completely uniform treatment with zero risk of scorching. Read below to see exactly how this mechanical process keeps your delicate compounds safe.

Core Mechanical Advantages

• Uniform Residence Time: Your ingredients spend the exact same amount of time traveling from the hopper to the end of the line. No part of your batch gets stuck lagging behind to cook and degrade while other parts rush through.
• Even Heat Distribution: For heat-sensitive recipes like PVC powders or eco-friendly PLAs, the machine's built-in 5-zone electric heating and RKC precision temperature controllers provide perfectly even heat distribution and prevent the completely ruined batches that cause massive headaches for lab managers.
• Controlled Pressure Buildup: The machine operates mostly in a "starve-fed" state, meaning the screws remain only partly filled (about ten to fifteen percent) until the very end. The internal pressure only builds up right at the finish line (safely managing up to 100 MPa), pushing the melt out smoothly without crushing your delicate compound.

Small-Batch Processing & Material Efficiency

If you only have an incredibly precious handful of an experimental powder, there is absolutely no need to worry. The QualiCTSE™ 20 allows you to run small-scale formulation tests without throwing costly resources into the trash.

Traditional setups require massive heaps of raw plastic just to begin, which can quickly drain your yearly research budget. This Conical Twin-Screw Extruder for Polymer Processing and Small-Batch Production changes that by providing:

• Flexible Output Capacity: Deliver 1 to 10 kg/h, letting you feed in just a few grams and still get the exact same pressure, mixing, and heating profiles that you would get on a giant factory-floor machine.
• Fully Customizable Flow: Scale the flow rate up or down directly with the customizable 1 to 200 rpm screw speed range, keeping you in complete control of the process while reducing material waste.

Advanced Computational Design & Modeling

We won’t overwhelm you with raw data, but the mechanical engineering behind this unit is incredibly solid, based entirely on complex fluid tracking and digital flow simulations. Researchers proved that as the 330 to 400 mm long conical screws taper down to the exit, the internal stretching forces actively increase. This physical shift breaks up stubborn clumps and mixes your fillers beautifully, maintaining positive mixing efficiency from start to finish.

Instead of guessing your temperatures and risking a failed test, the global mathematical models built into these systems ensure your real-world torque and melt temperatures match up with your predictions. This system provides:

• Uncompromising Accuracy: Keep your process within a tight ten percent margin of error for torque and melt temperature forecasts.
• Extreme Thermal Endurance: Take advantage of reliable Type K thermocouples handling standard temperatures up to 350°C, with an optional upgrade reaching up to 500°C.