This article explains the differences between mold temperature controllers (MTCs) and industrial chillers in plastic manufacturing. Both devices regulate temperature, but their principles and applications differ. MTCs provide precise heating and stable temperature control for molds, enhancing product quality and production efficiency in processes like injection molding, blow molding, and extrusion. Industrial chillers offer rapid cooling and constant-temperature water for equipment or materials that require heat removal. Understanding their working principles, control accuracy, and appropriate usage scenarios helps manufacturers optimize production, improve product quality, and reduce energy consumption.

This article introduces four essential screw-cleaning methods used in modified plastic production, especially for twin-screw extruders. It explains the working principles, operating procedures, advantages, and limitations of resin purging, mechanical disassembly cleaning, flame cleaning, and water-based hydrodynamic cleaning. By comparing their effectiveness, risks, and application scenarios, the article helps manufacturers choose the most suitable method for different materials and contamination levels. It also highlights the importance of proper operation, regular maintenance, and standardized cleaning processes to improve product quality, reduce defects, and extend extruder service life.

This article introduces the six key properties of modified flame-retardant polypropylene (PP). It explains PP’s strong mechanical performance, excellent physical characteristics, high chemical stability, and reliable heat resistance with a melting point of 164–170°C. The material also offers improved weatherability and outstanding electrical insulation. Flame-retardant PP uses phosphorus–nitrogen halogen-free systems, achieving UL94 V-0 and meeting GWIT 750°C and GWFI 960°C tests. With low smoke, low density, and minimal mold corrosion, flame-retardant PP is widely used in electrical components, automotive parts, and various extruded or molded plastic applications.

This article provides a complete maintenance guide for plastic pelletizing machines, covering daily inspections, periodic servicing, and emergency troubleshooting. It explains how proper lubrication, temperature control, electrical checks, and routine cleaning can prevent common failures such as material blockage, motor overheating, pellet contamination, and screw wear. The guide also outlines monthly, quarterly, and annual maintenance tasks for the hydraulic system, screw and barrel, gearbox, and electrical components. With practical steps for handling sudden issues like jamming, impurity-contaminated pellets, and overheating motors, the article helps manufacturers extend machine lifespan, reduce repair costs, and ensure stable, high-quality pellet production.

This article provides practical Q&A insights into common issues encountered during masterbatch processing, including dispersion quality, color consistency, moisture control, and equipment settings. It offers actionable solutions for improving production stability, optimizing extrusion parameters, and enhancing final product performance.

This article provides a practical guide to solving common problems in plastic pelletizing, including long pellets, fused pellets, black spots, and discoloration. It explains the root causes of each issue—such as unstable strand feeding, insufficient cooling, equipment contamination, improper temperature control, and poor mixing. The article also offers effective solutions, including optimizing cooling systems, maintaining cutter blades, improving material handling, thoroughly cleaning equipment, and adjusting extrusion temperatures and screw configurations. By controlling every step from raw material to finished pellets, manufacturers can enhance pellet quality, reduce waste, and improve production efficiency.

The color masterbatch polishing machine is a specialized device designed to refine the surface of color masterbatch granules used in plastic manufacturing. It operates through high-speed friction and grinding to remove surface irregularities, producing smooth and glossy pellets. This process enhances the dispersion and visual quality of masterbatches in plastic products. By improving surface finish, increasing production efficiency, and reducing labor costs, the polishing machine plays a vital role in enhancing product appearance, performance, and overall competitiveness in the plastic extrusion and processing industry.

Plastic broom filaments are synthetic bristles made through a plastic extrusion process at around 200°C, where melted polymers are shaped into fine strands. The main types are PET and PP filaments. PET broom filaments feature excellent mechanical strength, heat resistance, and durability, making them suitable for high-performance applications. PP broom filaments, made from polypropylene or recycled PP pellets, are lightweight, cost-effective, and chemically resistant, though less rigid and weather-resistant. Most broom filaments are produced using plastic extrusion machines, which melt and form plastic materials into consistent filament shapes for household and industrial broom production.

Black spots in PVC granules are mainly caused by **unclean screws, raw material contamination, carbonization from overheating, or poor environmental conditions**. Solutions include regularly cleaning the screw and die head, controlling temperature and residence time, inspecting raw materials, maintaining a clean production environment, cleaning auxiliary equipment and filters, and checking the heating system. These measures help prevent black spots and improve the appearance and quality of PVC granules.

Whether fillers in TPE pelletizing require surface modification depends on their activity, surface area, and loading level. High-activity or high-surface-area fillers (like nano silica or fine calcium carbonate) and high-performance or high-filling applications must be pre-treated with coupling agents to improve compatibility and prevent agglomeration. For low-activity fillers, low filling ratios, or low-cost applications, pre-modification is usually unnecessary and can be compensated by compatibilizers and lubricants. Proper modification ensures better dispersion, stability, and product quality in TPE processing.