Adjustable Plug Screw Feeder
The Adjustable Plug Screw Feeder is an industrial device used for precise control, conveying, and quantitative feeding of powder and granular materials. It is widely used in plastics processing, chemical batching, building material powders, and industrial automated production systems.
This Tapered Twin Shaft Screw Feeder equipment uses a specially designed "Plug Control Design" to add a material flow control zone to the screw conveyor, thereby achieving higher precision feeding adjustment capabilities. It is particularly suitable for working conditions with poor flowability or where strict control of the amount of material fed is required.
Working principle
The equipment is driven by a motor that rotates the screw shaft. During the screw propulsion process, the material forms a resistance zone through an adjustable plug structure.
The operation process includes:
- Material enters the screw conveyor cavity
- The screw propels the material forward.
- The plug-type regulating mechanism controls the material filling rate and flow rate.
- Precise feeding is achieved through mechanical adjustment or frequency conversion control.
- This structure can effectively stabilize the material flow rate and improve metering accuracy.
Applicable materials
This equipment is suitable for a variety of industrial materials:
- PVC/PE/PP plastic powder
- Fillers such as calcium carbonate and talc
- Chemical powders and additives
- Food-grade powders and ingredients
- Cement, mineral powder and building materials
- Powders with poor flowability or prone to clumping


Product Structure Features
Plug-type regulating structure design: achieving controllable flow rate
Screw conveyor system: stable and continuous material conveying
Sealed housing structure: reduces dust leakage
Adjustable feed resistance zone: Improves metering accuracy
Wear-resistant spiral blades: suitable for highly abrasive materials
Modular structure design: facilitates maintenance and replacement
Product performance characteristics
High feeding precision, suitable for metering control
It can handle powder materials with poor flowability.
Strong conveying stability
Supports continuous or quantitative feeding modes
Easy to integrate with automated systems
Reliable operation and simple maintenance
Technical parameters
|
Project |
Parameter Description |
|
Equipment Name |
AdjustablePlugScrewFeeder |
|
Conveying methods |
plug-type regulating screw conveyor |
|
Conveying capacity |
0.2–50 m³/h |
|
Helix diameter |
100–350mm |
|
Control method |
Mechanical adjustment/frequency conversion control/PLC (optional) |
|
Motor power |
0.75–11kW |
|
Conveying length |
1–15m (customizable) |
|
Material |
CarbonSteel/SUS304/SUS316 |
|
Installation method |
Horizontal/slanted installation |
Application areas
Plastic compounding and extrusion production line
Precision metering system for chemical powders
PVC/PE/PP processing industry
Building materials and cement batching system
Food and fine powder feeding system
Industrial Automation Measurement and Control System

Product Advantages
The Adjustable Plug Screw Feeder achieves higher precision material control capabilities on the basis of traditional screw conveyors by introducing an adjustable plug structure, making it particularly suitable for industrial production scenarios with high requirements for proportioning accuracy.




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