Professional analysis: Technical characteristics and selection strategies of PVC plastic production equipment

As the world’s leading PVC plastic raw material supplier, Guangdong HualongYicheng New Material Technology Co,.Ltd has been deeply involved in the industry for more than 20 years. It has many equipment partners in the industry and has always been committed to promoting production technology innovation. In the production process of PVC products, equipment selection directly affects product quality, efficiency and cost. This article analyzes the advantages and disadvantages of current mainstream equipment from a technical perspective to help companies optimize their production layout.

1. Twin-screw extruder: efficient mixing, suitable for complex formulas

Advantages: Twin-screw extruders have excellent material mixing and dispersion capabilities with their counter-rotating screw design, can accurately control the melt temperature, and are suitable for the production of complex formula PVC such as high filling and flame retardant. Its continuous production mode efficiency is more than 30% higher than that of a single screw, and the uniformity of the finished product is better.

Disadvantages: The equipment purchase cost is high (about 2-3 times that of a single screw), the maintenance complexity is high, and the technical requirements for operators are strict.

2. Single-screw extruder: economical and practical, suitable for basic production

Advantages: simple structure, low investment cost, suitable for large-scale production of standardized products such as PVC pipes and profiles. Energy consumption is 15%-20% lower than that of twin-screw, maintenance is convenient, and it is the first choice for small and medium-sized enterprises.
Disadvantages: limited mixing effect, difficult to handle high-proportion additive formulas; fixed screw aspect ratio, insufficient production flexibility.

3. Injection molding machine: precision molding, expansion of high-end applications
Advantages: hydraulic/electric injection molding machines can achieve precision molding of complex structure PVC parts (such as valves, connectors), with a repeatability of ±0.02mm. Servo motor technology reduces energy consumption by 40%, in line with the trend of green manufacturing.
Disadvantages: high mold development cost (about 30% of the total project investment), poor economic efficiency of small batch production; large equipment footprint, and a matching temperature control system is required.

Guangdong HualongYicheng New Material Technology Co,.Ltd is equipped with a senior technical team and has long-term and reliable equipment partners, which can provide a full-chain solution from equipment selection to formula optimization. At present, we have assisted more than 300 customers around the world to complete production line upgrades, with an average capacity increase of 45% and a defect rate reduced to below 0.8%. In the future, we will continue to promote the green and digital transformation of PVC production.