Spirotech Screw conveyor

• Transporting bulk powders and granular materials in food processing.
• Moving aggregates and dry chemicals in industrial settings.
• Feeding processing lines with consistent material flow.
• Transferring waste products or by-products in various manufacturing processes.
• Handling ingredients in bakeries, dairies, and snack food production.

Typical throughput

Throughput for this class of screw conveyor can vary significantly based on material density, screw pitch, and rotational speed, but units are commonly designed for continuous material transfer.

Power supply

Units of this type commonly operate on a 3-phase electrical supply, typically 400V, 50Hz in the UK, with motor power commonly ranging from 1.5kW to 7.5kW depending on length and load.

Material of construction

For food processing and hygiene-sensitive applications, screw conveyors are typically constructed from stainless steel (e.g., 304 or 316 grade).

Screw diameter

Common screw diameters for industrial and food processing applications range from 150mm to 400mm, influencing the volumetric capacity.

Length

Screw conveyors are available in various lengths, from short transfer units of 1-2 metres to longer systems exceeding 10 metres, often modularly constructed.

Maintenance requirements

Routine maintenance typically involves checking bearings, motor, and gearbox lubrication, as well as ensuring the screw flighting is free from wear or damage.

Suitable feed materials

This equipment is generally suitable for free-flowing to semi-free-flowing powders, granules, flakes, and small aggregates. Abrasive or sticky materials may require specific design considerations.

• What types of materials can this screw conveyor handle?

  Screw conveyors are typically effective for transporting dry, free-flowing to semi-free-flowing bulk solids such as grains, flours, sugars, salts, and various chemical powders. Performance can vary with material characteristics.

• Is this unit suitable for food-grade applications?

• What is the typical lifespan of a screw conveyor?

• Can this conveyor operate at an incline?

• What safety features are typically included?

Buyers typically value conveyor systems for their reliability and longevity when well-maintained. Key considerations when purchasing used units include belt condition, motor functionality, frame integrity, and available spare parts. Industry sentiment emphasises the importance of verifying operational history and cleanliness standards, particularly for food handling applications. Common strengths include robust construction, relatively straightforward maintenance requirements, and cost savings versus new equipment. Reputable manufacturers' models tend to hold their value well and integrate readily into existing production lines.

General overview for this equipment type