Spirotech Screw conveyor

Applications & Use Cases

• Transporting bulk dry ingredients such as flour, sugar, or grains within a food processing facility.
• Moving powders or granules from hoppers to mixers or packaging lines.
• Feeding processing machinery with a controlled flow of material.
• Handling waste products or by-products in a contained manner.

Typical Specifications

Typical throughput

Throughput for this class of equipment typically ranges from a few hundred kilograms per hour to several tonnes per hour, depending on screw diameter, pitch, and motor speed.

Power supply

Units of this type commonly require a 3-phase electrical supply, typically 400V, 50Hz, with motor power commonly in the 1.5 kW to 7.5 kW range for industrial applications.

Material of construction

For food processing applications, screw conveyors are almost exclusively constructed from stainless steel (e.g., 304 or 316 grade) to meet hygiene standards.

Screw diameter

Common screw diameters for food-grade conveyors range from 150mm to 400mm, influencing capacity and the size of material handled.

Conveyor length

Screw conveyors can vary significantly in length, from short transfer units of 1-2 metres to longer systems exceeding 10 metres, often customised to facility layouts.

Hopper capacity

Integrated hoppers on screw conveyors typically range from 25 kg to 250 kg, designed to provide a buffer for continuous feeding.

Cleaning and maintenance

Designs commonly incorporate features for ease of cleaning, such as quick-release covers, split troughs, or removable screws, crucial for food safety and preventing cross-contamination.

Frequently Asked Questions

• What types of materials can this screw conveyor handle?

  This type of screw conveyor is primarily designed for free-flowing dry bulk solids such as powders, granules, and small particulate materials commonly found in food processing.

• Is this unit suitable for liquids or sticky products?

• What are the typical hygiene standards for food-grade screw conveyors?

• Can the conveying angle be adjusted?

• What safety features should I look for?