This article compares extrusion and pelletizing equipment used for TPE, TPR, TPU, TPV, and silicone rubber materials. While all elastomer pelletizing lines share core components—such as twin-screw or single-screw extruders, cooling systems, and pelletizers—each material has specific equipment needs. TPU requires precise temperature and moisture control, TPV demands high-torque twin-screw extruders for dynamic vulcanization, and silicone uses specialized extruders with vacuum degassing and curing systems. Overall, process optimization and tailored screw configurations are key to achieving high-quality pellets and efficient production.

This article discusses how to increase the output of a twin-screw extruder by optimizing the screw configuration. It explains how improvements in feeding efficiency, melting performance, side feeding design, mixing quality, and pressure build-up can enhance extrusion productivity. By adjusting the screw elements, such as conveying and kneading blocks, manufacturers can achieve higher throughput, better material dispersion, and more stable processing without changing the extruder size.

Laboratory extruders are compact, high-precision extrusion machines designed for material research, small-batch production, and educational use. Compared to industrial extruders, they feature flexible modular design, precise control systems, and lower throughput, making them ideal for polymer modification, masterbatch development, reactive extrusion, and pilot-scale testing. With screw diameters typically ranging from 12 to 45 mm and output capacities of 0.25–150 kg/h, lab extruders provide critical data for process optimization, scale-up validation, and innovative material development across plastics, pharmaceuticals, and food industries.

This article explains why a universal screw design for plastic extrusion does not exist. Different polymers, such as HDPE and HIPS, have unique thermal, viscoelastic, density, and friction properties that directly affect melting, conveying, and throughput. These variations make it impossible for one screw geometry to efficiently process all materials, highlighting the need for polymer-specific screw designs to ensure optimal extrusion performance.

This article discusses how different TPE pelletizing methods, such as cold cutting and hot cutting, influence product quality. It highlights key extrusion parameters including melt temperature, pressure, and conveying speed, which directly affect pellet consistency and final product performance. Common pellet quality issues—such as black spots, discoloration, poor plasticization, or excess moisture—are analyzed with corresponding solutions to ensure stable extrusion, improved material properties, and higher product reliability.

This article analyzes the challenges of carbon black dispersion in black masterbatch production using twin screw extruders. Issues such as brittle or broken strands, hopper bridging, and uneven feeding are discussed. Key factors include dispersant ratio, temperature control, screw speed, and hopper design. Practical solutions—such as adjusting EVA wax content, optimizing temperature and screw configuration, adding vibration devices, and improving pre-dispersion of pigments—are proposed to enhance extrusion efficiency and ensure uniform masterbatch quality.

This article explains why a single screw extruder cannot replicate the mixing performance of a twin screw extruder. Twin screw extruders enable full-channel mixing, controlled shear distribution, and efficient additive dispersion, while single screw extruders face limitations in shear balance, melt flow, and throughput. The flexible design of twin screw systems allows repeated high-shear mixing with minimal heat buildup, achieving superior compounding and homogenization.

Discover the essential equipment for TPE pelletizing, including extruders, pelletizers, and mixers, plus supporting systems like cooling and drying units. Learn how production scale influences equipment choice—from single screw extruders for small batches to twin screw extrusion lines with underwater pelletizers for large-scale, high-quality TPE granule production.

This article explains how to achieve high transparency in TPR pelletizing through optimized formulation, precise processing control, and careful raw material selection. Key methods include using liquid additives instead of solid ones, avoiding fillers, cleaning extrusion equipment thoroughly, and choosing high-purity SBS grades such as YH-188E and 988. These practices ensure TPR pellets with excellent clarity, gloss, and stability for applications in toys, footwear, and other products.

This article compares the differences between single screw and twin screw masterbatch extruders in terms of working principle, production efficiency, product quality, and application scope. Single screw extruders are cost-effective and suitable for small to medium-scale production, while twin screw extruders offer higher efficiency, better dispersion, and are ideal for large-scale and high-quality masterbatch manufacturing. Choosing the right extruder depends on production needs and material requirements.