Industrial Vertical Screw Elevator

The screw elevator (often referred to as a screw feeder or vertical screw conveyor) is standard industrial equipment designed to transport powder and granular materials vertically or on an incline using rotating screw blades.

Core Principles

• Drive System: The motor and reducer drive the rotation of the screw shaft and blades.
• Conveying Mechanism: Upon entering the enclosed tube, materials are driven upward along the screw flighting by blade pushing force and centrifugal force, discharging through the top outlet.

Main Structure

• Drive Unit: Motor and reducer.
• Conveying Body: Screw shaft, screw flighting, and circular/square enclosed casing.
• Inlets & Outlets: Bottom feed hopper and top discharge port.
• Support System: Bearings, brackets, and base.

Key Features

• Space-Saving: Vertical conveying requires minimal floor space.
• Excellent Sealing: Fully enclosed tubular design ensures dust-free, contamination-free, and explosion-proof operation.
• Continuous & Stable: Supports uniform, quantitative feeding with variable frequency speed control.
• Simple Structure: Low maintenance requirements and low failure rate.
• Versatile Capability: Capable of conveying high-temperature (≤200℃) and abrasive materials.
• Limitations: Not recommended for highly viscous, easily caking, or perishable materials.

Typical Applications

• Grain & Feed: Grains, flour, feed, starch.
• Chemicals & Building Materials: Cement, lime, pulverized coal, fertilizers, plastic pellets.
• Food & Pharmaceuticals: Sugar, salt, food additives, pharmaceutical powders.