PVC Automatic Mixing System

Core System Components

Automatic Feeding System: Includes the pneumatic conveying of PVC powder and the pipeline transport of plasticizers and liquid additives.

Weighing and Metering System: Utilizes high-precision sensors and loss-in-weight scales to achieve continuous, accurate metering of various primary materials and additives (such as stabilizers, lubricants, and modifiers).

High-Speed ​​Mixing Unit: Performs heated mixing (hot mix) and cooling mixing (cold mix) on the prepared materials, thoroughly eliminating static electricity and moisture while ensuring the uniform dispersion of additives.

Central Control System (PLC): Enables automated operation, monitoring, and data traceability throughout the entire process, ensuring the strict confidentiality and consistency of the formulation.

A typical PVC automatic blending and conveying process typically includes the following steps: 

Raw material storage – bulk materials such as PVC resin and calcium powder are stored in large storage silos.

Automatic conveying: Raw materials are automatically delivered to each metering hopper via sealed pipelines.

Precise ingredient formulation: The system automatically weighs various raw materials and trace excipients according to the preset formula.

Mixed processing: The weighed material is fed into a high-speed mixer for thermal and cold mixing to produce a uniform powder.

Product conveyance: The mixed materials are transported to downstream forming equipment such as extruders.

Key Application Advantages

Enhanced Product Quality: The precision automatic feeding and weighing system for PVC mixers effectively controls feed consistency for extruders. This significantly improves the stability of physical properties in products such as pipes and profiles while eliminating human error.

Environmental Protection and Safety: Pneumatic conveying and a fully enclosed design effectively prevent dust emissions, vastly improving the workshop working environment.

Reduced Production Costs: Continuous production capabilities lower labor and floor-space costs. Additionally, precise proportioning saves raw materials, thereby boosting economic efficiency.

The PVC automatic mixing and proportioning system integrates material handling, precision metering, high-efficiency mixing, and intelligent monitoring.

Its core benefits include:

Superior Precision and Stability: PLC-based control ensures high metering accuracy and absolute consistency in PVC material ratios across batches, eliminating human error.

High Production Efficiency: Intelligent control of mixing times and seamless process integration significantly shorten production cycles and increase output.

Labor Efficiency and Environmental Friendliness: Enclosed pneumatic conveying prevents dust emissions and improves the workshop environment, while reducing reliance on manual labor and lowering physical workload.

Flexible Management: Supports the storage of multiple recipes and allows for seamless switching between different product formulations (e.g., profiles, sheets), minimizing downtime associated with material changes.