Screw Conveyors

Flexible & Efficient Conveying for Powder & Granular Materials

I. Overview

The screw conveyor is a standard piece of equipment for the horizontal or inclined conveyance of industrial powders and granular materials. It features a compact structure, excellent sealing for environmental protection, flexible layout options, and minimal maintenance requirements. Our company offers a comprehensive range of screw conveying and steady-flow feeding equipment designed to meet the continuous conveying needs of industries such as building materials, cement, chemicals, grain, and electric power.

Covered Models:

• LS Type Screw Conveyor
• GX Type Screw Conveyor
• WDG Single Tube Screw Stabilizer

II. Working Principle

A motor drives the spiral shaft to rotate, and the spiral blades continuously push the material within the trough. Due to the force of gravity and friction against the trough, the material does not rotate along with the blades but instead moves forward solely along the axial direction, thereby achieving continuous and stable conveyance.

III. Structure

1. Head Section (Drive Unit, Discharge Outlet)
2. Middle Sections (Standard Sections, Hanger Bearings)
3. Tail Section (Tail Bearing, Feed Inlet, Tensioning Mechanism)
4. Screw Shaft & Blade
5. Hanger Bearing (Sealed Type, Dust-proof)
6. U-Trough / Closed Shell

IV. Features & Advantages

1. Compact Structure: Features a compact design with a small footprint, making it ideal for space-constrained environments.
2. Excellent Sealing & Dust-Free Operation: Fully sealed to prevent dust leakage, ensuring a clean and eco-friendly operation that meets industrial dust-free standards.
3. Flexible Layout: Offers flexible installation options, allowing for horizontal or inclined (up to 20°) mounting, with support for multi-point feeding and discharge.
4. Easy Operation & Maintenance: Simple to operate and maintain, featuring few wear parts; the hanger bearing seals are reliable, ensuring a long service life.
5. Stable Feeding & Uniform Flow: Ensures smooth conveying and a uniform material flow, preventing blockages and material backflow.
6. Wide Adaptability: Highly versatile and suitable for a broad range of materials, including cement, raw meal, fly ash, grains, chemical powders, and more.
7. High Conveying Capacity: Delivers ample conveying capacity with a full range of available screw diameters, ensuring a stable and adjustable flow rate.
8. Low Operating Cost: Cost-effective to operate, characterized by low power consumption, minimal wear, and stable performance.

V. Detailed Breakdown by Model

1. LS Type Screw Conveyor

LS-Type Screw Conveyor (New Universal Model)

• An upgraded replacement for the GX-type, offering enhanced durability and superior sealing.
• Suspension Bearings: Double-sided labyrinth seals to prevent jamming and leakage.
• Temperature Range: ≤ 200°C
• Inclination Angle: ≤ 20°
• Features: High conveying capacity, low maintenance requirements, and long service life.

2. GX Type Screw Conveyor

GX Series Screw Conveyor (Classic Fixed Type)

• Classic, Proven Design
• Screw Diameter: 150–600 mm
• Length: 3–70 m (in 0.5 m increments)
• Applications: Existing Line Upgrades, General-Purpose Fixed Conveying
• Screw Type: S (Solid Flight) / D (Ribbon Flight)

3. WDG Single Tube Screw Stabilizer

WDG Single-Tube Spiral Flow Stabilizer (Silo Bottom Discharge / Quantitative Feeding)

• Applications: Silo bottom discharge, quantitative feeding, stabilized conveying
• Structure: Enclosed tubular design; specially shaped feed spiral prevents clogging
• Speed ​​Control: Type I (Fixed Speed) / Type II (Electromagnetic Variable Speed)
• Features: High filling rate, uniform feeding, adjustable flow rate
• Suitable for: Raw meal, pulverized coal, cement, and other powdery materials

VI. Application

• Cement
• Building Materials
• Chemical Industry
• Grain & Feed
• Power Plant
• Metallurgy
• Coal & Ash

VII.Selection Guide

For equipment selection, please provide:
1. Material name, moisture content, particle size, and temperature
2. Conveying capacity (t/h or m³/h)
3. Conveying length (m)
4. Installation configuration: Horizontal / Inclined (angle)
5. Inlet/outlet locations and quantities
6. Requirements for variable speed control, flow stabilization, or silo bottom discharge

Contact us for professional screw conveyor solution & customized length.