What is a Recycling Screw?

A Recycling Screw is a type of screw conveyor used for the recovery of used materials. Thanks to the Recycling Screw, waste can be separated into components such as aggregate, sand, and water to be reused in production, providing significant recovery in the long term.

The Recycling Screw ensures high plant efficiency with low operating time and water consumption. It supports eco-friendly production through a recycling system that offers biological environmental efficiency. Generally, recycling screws are used in concrete batching plants and truck mixers to recover washed concrete.

Upon customer request, Recycling Screws can be coated with anti-corrosion paint.

What is a Screw Welded onto a Shaft?

A screw welded onto a shaft consists of materials formed by welding continuous (cold-rolled) screw flights or sectional screw flights onto pipes of desired dimensions and specifications.

Screws welded onto shafts are frequently used in conveyor systems such as cement screws, U-type screws, dosing screws, and hopper screws. Upon user request, they can be produced with a galvanized finish.

Depending on customer requirements, these screws can be manufactured from carbon steel or stainless steel. They are available in variable pitches and standard lengths. Production is carried out according to specific technical drawings.

Screws welded onto shafts are used as internal components in various conveyor types. Depending on the production purpose, they are utilized for either conveying or shredding processes.

These components are resistant to external impacts and, thanks to high-quality welding, promise a long service life during operation.

What are U-Type Screw Conveyors and U-Type Double Screw Conveyors?

U-Type Screw Conveyors can be manufactured in various diameters depending on the desired conveying capacity. Furthermore, like other screw systems, U-type screws can be produced with various quality options such as Hardox, stainless steel, or special anti-wear coatings, depending on customer demands or industry requirements. The U-type screw is long-lasting and does not require special maintenance, making it the most economical choice among screw types. Additionally, since it features a system with an easily openable top cover, the trough and the screw can be cleaned effortlessly when switching between different products.

U-type screws are manufactured in different diameters based on capacity. These conveyors ensure that solid-bulk raw materials are transmitted in a straight line through translational motion. The screw feeder mechanically transports bulk materials from the feeding point to the discharge point by pushing them through a trough or tube channel using helical (spiral) flights fixed on a rotating shaft.

Sealing in screw conveyors is achieved through elements like Teflon packing, rubber-Viton seals, or mechanical seals. For screw conveyors exceeding certain lengths, intermediate bearings are utilized to prevent axial misalignment of the screw shaft.

Moreover, U-Type Screw Conveyors can be manufactured as double-screw systems upon request. Similarly, U-Type Double Screw Conveyors can be utilized for both mixing and conveying purposes.

Usage Areas:

• Food Industry: Transfer of granular products such as rice and wheat.
• Plastics Industry: Transfer of powder and granule raw materials.
• Construction Industry: Transfer of dense materials like sand and mortar.
• Chemical Industry: Transfer of powder materials.

What are U-Type Screw Conveyors and U-Type Double Screw Conveyors?

U-Type Screw Conveyors can be manufactured in various diameters considering the required conveying capacity. Additionally, like other screw systems, U-type screws can be produced with various quality options such as Hardox, stainless steel, or special anti-wear coatings based on customer demand or industry needs. The U-type screw is not only long-lasting but also does not require special maintenance, making it the most economical choice among screw types. Furthermore, since the U-type screw has an easily openable top cover system, the bed and the screw can be cleaned easily when used for transferring different products.

U-Type Screw Conveyors ensure the linear transmission of solid-bulk raw materials through translational motion. A screw feeder mechanically transports bulk materials from the feeding point to the discharge point by pushing them within a trough or tube channel using helical (spiral) flights fixed on a rotating shaft.

Sealing in screw conveyors is provided by elements such as Teflon packing, rubber-Viton seals, or mechanical seals. In screw conveyors exceeding certain lengths, intermediate bearings are used to prevent axial misalignment of the screw shaft.

Moreover, U-Type Screw Conveyors can be manufactured with double screws upon customer request. Similarly, U-Type Double Screw Conveyors can be used for both mixing and conveying.

Application Areas:

• Food Industry: Transfer of granular foods like rice and wheat.
• Plastics Industry: Transfer of powder and granule raw materials.
• Construction Industry: Transfer of dense materials like sand and mortar.
• Chemical Industry: Transfer of powder materials.

What is a Helical Conveyor?

A helical conveyor is a mechanism that uses a rotating helical screw (helix) placed inside a tube or trough to move powder or granular materials. The helical conveyor transports powder or granular materials through the rotational movement of the helix, powered by a motor.

The main component in screw conveyors is the screw, which is wound around a shaft to perform the transport. The screw shaft is supported at both ends by bearings. If the screw is very long, it must be supported at intervals by suspension bearings. Since the presence of suspension bearings in a screw significantly reduces efficiency and causes blockages in the screws, the use of suspension bearings should be avoided as much as possible.

In screw conveyor systems, intermediate suspension bearings can be used depending on the particle size and density of the product. Intermediate bearings are not preferred in screws conveying highly dense materials and in conveyors with steep angles, as the risk of screw backflow is very high.

Screw conveyors can be manufactured in different designs, for example;

Bunker-Type Screw Conveyor:

• This type of screw conveyor is typically designed with a bunker.
• Bunker-type screw conveyors are used to transport powder to filling machines.
• They are suitable for the automatic packaging of powdered materials such as rice, tea powder, protein, sugar, and similar products.
• They can be made with legs according to customer request.
• In bunkered screw conveyors, the bunker can be designed to be removable upon request.
• In bunkered screw conveyor systems, the work is made easier by installing a vibration motor on the bunker for materials with low product flow.

Dosing (Feeding) Screw Conveyor:

• These units are designed for the transport and dosing of solid fluids.
• They produce low capacity as required by the application areas and provide precise dosing.
• Their areas of use are ready-mix concrete, construction chemicals, and the food industry.
• The screw can be designed according to customer requirements.