In modern plastic manufacturing, accurate liquid additive dosing directly affects product quality, production consistency, material costs, and operational efficiency. Whether processing plastic compounds, PVC formulations, cable materials, masterbatches, recycled plastics, rubber products, or specialty polymer blends, manufacturers increasingly require automated liquid metering systems that eliminate human error and ensure precise ingredient control.
The Liquid Automatic Metering & Conveying System developed by Zhangjiagang Chenxing Machinery Co., Ltd. is designed to provide highly accurate liquid dosing, automated conveying, and intelligent process control for oils, plasticizers, stabilizers, lubricants, colorants, coupling agents, and other liquid additives used throughout industrial production.
By integrating advanced flow metering technology, temperature compensation, density correction, automatic control valves, and intelligent PLC control, the system enables fully automated liquid feeding with excellent repeatability and long-term stability.
A Liquid Automatic Metering & Conveying System is an intelligent industrial solution that automatically measures, controls, and transfers liquid materials from storage tanks to processing equipment according to predefined formulas and production requirements.
Unlike traditional manual weighing and pouring methods, this system automatically completes:
Liquid measurement
Batch dosing
Formula management
Automatic conveying
Flow monitoring
Temperature compensation
Production data recording
The result is a highly efficient, clean, safe, and repeatable production process.
Many manufacturers underestimate the impact of liquid additive precision.
Even a small dosing deviation can cause:
Product quality instability
Mechanical property variations
Surface defects
Increased raw material consumption
Formula inconsistency
Customer complaints
Production waste
For industries such as PVC extrusion, cable compounds, SPC flooring, WPC products, masterbatch production, and plastic recycling, maintaining accurate liquid dosing is critical for product consistency and profitability.
The Chenxing Liquid Metering System minimizes these risks through automated precision control.
The system consists of two major sections:
The metering unit typically includes:
Flow transmitter
High-precision flow meter
Temperature sensor (Pt100)
Filter
Oil pump
Solenoid valves
Balance valves
Intelligent control instrument
The system continuously monitors liquid flow and automatically calculates the exact amount required.
The conveying section includes:
Inlet pipeline
Outlet pipeline
Stainless steel fittings
Transfer pumps
Flexible connection assemblies
Once the required dosage is reached, the control system automatically stops liquid delivery and records the data.
One of the biggest challenges in liquid metering is density variation caused by temperature fluctuations.
The Chenxing system utilizes:
Real-time temperature tracking
Density compensation algorithms
Flow correction technology
This ensures measurement accuracy remains stable even when ambient temperatures change significantly.
As a result, metering accuracy can be controlled within extremely tight tolerances.
Advanced flow measurement technology ensures accurate dosing of liquid additives.
Benefits include:
Reduced formulation errors
Stable product quality
Lower raw material waste
Consistent production batches
Operators only need to enter the required dosage value.
The system automatically performs:
Valve control
Pump control
Flow monitoring
Quantity calculation
Batch completion
This significantly reduces labor dependency.
The system can store multiple production recipes.
Manufacturers can:
Switch formulations quickly
Reduce setup time
Improve production flexibility
Standardize production processes
This feature is especially valuable for companies producing multiple product grades.
The intelligent control platform continuously monitors:
Flow rate
Liquid quantity
Temperature
System pressure
Equipment status
Operators can instantly detect abnormalities and optimize production performance.
Production data can be stored automatically, including:
Batch quantity
Date and time
Formula information
Operator records
Consumption reports
This provides valuable production traceability for quality management systems.
For flammable or hazardous liquid applications, the system can be customized with:
Explosion-proof motors
Explosion-proof electrical components
Safety monitoring systems
Meeting industrial safety requirements in specialized production environments.
Automatically meters:
Plasticizers
Stabilizers
Lubricants
Processing aids
Ensuring stable pipe quality and improved extrusion efficiency.
Accurate liquid additive control helps maintain:
Dimensional stability
Surface quality
Mechanical performance
Across large production volumes.
Provides precise dosing of:
Coupling agents
Lubricants
Additives
Improving composite consistency and product performance.
In recycling pelletizing lines, liquid additives are often required for:
Melt modification
Processing enhancement
Odor control
Stabilization
The automatic metering system ensures accurate additive consumption and reduces operating costs.
Widely used for:
PVC cable compounds
XLPE compounds
Special polymer formulations
Where precise ingredient control is critical.
| Item | Manual Dosing | Automatic Metering System |
|---|---|---|
| Accuracy | Low | High |
| Labor Requirement | High | Low |
| Production Consistency | Variable | Stable |
| Material Waste | Higher | Lower |
| Traceability | Limited | Complete |
| Formula Control | Difficult | Intelligent |
| Production Efficiency | Moderate | High |
With over 20 years of manufacturing experience in plastic processing equipment, Chenxing Machinery provides complete material handling and dosing solutions for global customers.
Our advantages include:
Custom engineering support
PLC-based automation integration
Stainless steel construction options
International component brands
Turnkey project capability
Global technical support
OEM and customized solutions
We have successfully supplied equipment to customers in:
North America
South America
Europe
Middle East
Southeast Asia
Africa
The system can accurately meter and convey:
Plasticizers
Lubricants
Stabilizers
Silicone oils
Mineral oils
Processing oils
Liquid colorants
Chemical additives
Solvents
Coupling agents
Specialty liquid compounds
Customized solutions are available for specific liquids and viscosities.
The system utilizes advanced flow measurement and temperature compensation technologies to achieve highly precise liquid dosing suitable for industrial production requirements.
Yes. The system can be customized for low-viscosity oils, medium-viscosity additives, and special industrial liquids.
Yes. PLC and HMI touchscreen control systems are available for intelligent operation, recipe management, and production monitoring.
Absolutely. The Liquid Automatic Metering & Conveying System can be integrated with extrusion lines, compounding systems, recycling lines, mixers, and batching systems.
Yes. Explosion-proof motors, sensors, electrical cabinets, and control systems can be configured according to customer requirements.
The system is widely used in:
PVC processing
SPC flooring production
WPC manufacturing
Plastic compounding
Plastic recycling
Cable material production
Rubber processing
Chemical industries
Looking for a reliable and accurate liquid dosing solution for your production line?
Chenxing Machinery can provide customized Liquid Automatic Metering & Conveying Systems tailored to your materials, formulations, capacity requirements, and factory layout.
Contact our engineering team today to discuss your project and receive a professional solution proposal.