Collection: Screw Conveyor & Auger Conveyor for Powder and Granular Materials

About Screw Conveyor & Auger Conveyor for Powder and Granular Materials

A screw conveyor, also called an auger conveyor, moves bulk solids such as flour, grain, seeds, feed pellets, cement and chemical powders through an enclosed trough or tube using a rotating helical flight. It runs horizontally, at an incline or vertically, and its enclosed design keeps dust inside and prevents spillage. Screw conveyors feed mixers, hoppers, weighing systems and packaging lines in food processing, agriculture, feed milling, building materials and chemical plants. Because they provide a controlled, continuous feed rate, they are the standard solution for dosing ingredients into batching and packing equipment.

How to Choose

• Screw diameter and conveying length matched to your required throughput and layout
• Shafted flight for dry free-flowing material vs shaftless design for sticky or fibrous product
• Construction material: carbon steel, 304 or 316 stainless steel depending on food contact and corrosion needs
• Horizontal, inclined or vertical configuration to fit your line, with correct motor power
• Optional variable speed drive, inlet hopper and dust-tight tubular housing for process control

Model Selection Guide

The models below are real CECLE products in this series. Contact us or see doc.cecle.net for full specifications and a quote.

FAQ

Q: What materials can a screw conveyor handle?
A: It suits dry free-flowing bulk solids such as flour, sugar, salt, grain, seeds, feed, cement and chemical powders. Sticky, wet or fibrous materials are better handled by a shaftless screw design.

Q: Shafted or shaftless, which should I choose?
A: Shafted screws are lower cost and ideal for dry, free-flowing powders and granules. Shaftless screws have no central shaft, so wet, sticky or stringy material moves through without wrapping and clogging.

Q: Can the conveyor be installed at an incline?
A: Yes. Horizontal runs are most common, but inclined and vertical configurations are available. Capacity falls as the incline increases, so the screw pitch and motor power must be sized for the installation angle.

Q: Is a screw conveyor suitable for food handling?
A: Yes. Food-grade models use 304 or 316 stainless steel with smooth welded flights, hygienic sealed bearings and easy-clean troughs, making them suitable for flour, sugar, spices and other food ingredients.