Screw Conveyor Solution for Long Distance Material Handling

Screw Conveyor Product Introduction

Screw conveyor, also known as auger conveyor or screw feeder system, is a mechanical conveying solution that uses a rotating helical screw blade inside a tubular or U-shaped trough to move bulk materials.

It is widely used for horizontal transportation, inclined conveying, and vertical lifting of powders, granules, and small bulk solids.

The system supports multi-point feeding and multi-point discharge, and can also perform mixing, stirring, and cooling during conveying. It is suitable for continuous industrial production lines requiring stable and controlled material flow.

Working principle

Step 1: Material Feeding
Bulk material enters the screw conveyor inlet or screw feeder hopper (100% flood loaded condition).

Step 2: Screw Rotation
Motor drives the helical screw blade to rotate inside the housing.

Step 3: Material Propulsion
Material is pushed forward along the trough by rotating screw flight.

Step 4: Controlled Conveying
Material moves continuously in horizontal, inclined, or vertical direction.

Step 5: Optional Processing
During transport, material can be mixed, cooled, or homogenized.

Step 6: Discharge
Material exits through discharge outlet or multiple discharge points.

Step 7: Flow Control (Feeder Mode)
Variable speed drive adjusts screw speed for precise metering control.

Product Parameter Table

Parameter	Specification
Chassis Outer Diameter	219 mm
Conveying Capacity	400-4000 kg/h
Speed	24-132 r/min
Motor Power	2.2 kW

Decision Table

Main Features

• High-speed screw rotation ensures large conveying capacity and stable flow output
• Compact screw diameter design improves space efficiency in production lines
• Supports multi-point feeding and multi-point discharge along conveying line
• Capable of simultaneous mixing, stirring, or cooling during material transport
• High-precision feeding control when used as screw feeder at process start
• Seamless steel pipe structure ensures strong rigidity and long service life
• Modular flange connection allows easy installation, disassembly, and relocation
• Flexible operation for horizontal, inclined, or vertical conveying conditions

Why Choose This System

• Enables precise and continuous bulk material feeding in industrial processes
• Supports both conveying and metering functions in one system
• Highly adaptable for horizontal, inclined, and vertical layouts
• Stable mechanical structure ensures long-term reliable operation
• Suitable for abrasive, powdery, and granular materials
• Flexible multi-point feeding and discharge improves production efficiency
• Easy maintenance due to modular flange and simple mechanical design
• Cost-effective solution compared to pneumatic or belt conveying systems

Application Scenarios

• Food processing: flour, starch, sugar, seasoning powder transfer
• Chemical industry: resin powder, pigments, additives, catalysts
• Construction materials: cement, fly ash, gypsum powder handling
• Plastic industry: resin pellets, granules, recycled plastic materials
• Pharmaceutical industry: fine powders and controlled dosing materials
• Feed production: grain powder, feed additives, mineral supplements
• Mining and metallurgy: ore powder, metal fines, slag powder
• Environmental systems: ash, sludge powder, waste material handling

Buying Guide

When selecting a screw conveyor or screw feeder system, consider:

• Material type (powder, granule, abrasive or sticky)
• Required capacity (kg/h or tons/hour)
• Conveying direction (horizontal, inclined, vertical)
• Feeding accuracy requirements (dosing or continuous transport)
• Hopper/bin/silo integration type
• Screw diameter and rotational speed
• Construction material (carbon steel / stainless steel)
• Production environment (food grade, chemical, industrial)

FAQ

Q1: What is a screw conveyor used for?

A: It is used for transporting powders, granules, and small bulk materials in industrial production systems.

Q2: What is the difference between screw conveyor and screw feeder?

A: Screw conveyor transports materials continuously, while screw feeder controls accurate material dosing.

Q3: Can screw conveyor handle vertical lifting?

A: Yes, it can be used for horizontal, inclined, and vertical material transport.

Q4: What materials can screw conveyor transport?

A: It can handle powders, granules, cement, flour, chemicals, and feed materials.

Q5: Is screw conveyor suitable for metering applications?

A: Yes, screw feeder systems provide precise and adjustable feeding control.

Q6: How is feeding rate controlled in screw conveyor?

A: Feeding rate is controlled by variable speed drive adjusting screw rotation speed.

Q7: Can screw conveyor perform mixing during transport?

A: Yes, it can mix, stir, or cool materials during conveying process.

Q8: What industries use screw conveyor systems?

A: Food, chemical, construction, pharmaceutical, plastic, and mining industries.

Conclusion

Screw conveyor and screw feeder systems are efficient and flexible solutions for industrial bulk material handling. With precise control, multi-function capability, and stable mechanical structure, they are widely used in continuous production processes requiring reliable conveying, mixing, and dosing performance.

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