Trough Screw Conveyors

Efficient and Hygienic Solution for Bulk Handling

Trough Screw Conveyors, also known as Trough Screw Conveyors, are a versatile and efficient solution for transporting bulk materials in various industries. Thanks to their open design with a removable or hinged lid, they offer easy access for inspection and cleaning. This makes them particularly well-suited for sectors where hygiene, reliability, and ease of maintenance play a crucial role.

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What is a Trough Screw Conveyor?

A Trough Screw Conveyor consists of a screw conveyor rotating within a U-, V-, or ʊ-shaped trough. The trough is partially or fully covered to prevent spillage of bulk materials and can be easily opened for cleaning or maintenance. This type of screw conveyor is designed for horizontal or slightly inclined transport of powders, granulates, and other bulk goods.

Thanks to its modular design, the Trough Screw Conveyor can be adapted to the specific requirements of a production process. Materials such as stainless steel or wear-resistant steel are often used, depending on the application and the properties of the product being conveyed.

Configurations and Advice

Depending on your requirements, we can supply trough screw conveyors with a twin-shaft system, drop bottoms, hinged lids, screw arrangements from horizontal to vertical, polished finishes, and more. All configurations are available in both steel and stainless steel.

Screw conveyors are built either as tubular screw conveyors or as trough screw conveyors, depending on the product.

Our screw conveyors comply with the latest European Machinery Directive 2006/42/EC.

Benefits of Trough Screw Conveyors

Widely applicable

Suitable for powders, granules, and other bulk materials in industries such as food, chemical, and recycling

Low maintenance requirements

Due to their robust design and minimized use of wear-sensitive moving parts, maintenance is limited.

Easy to clean

The removable lid and open top facilitate fast and thorough cleaning.

Hygienic design

Easy access for cleaning and inspection makes trough screw conveyors ideal for applications where hygiene is essential. We design according to EHEDG and HDN guidelines, which is critical for applications in the food industry.

Option for ATEX certification

For use in explosive environments, trough screw conveyors can be built in compliance with ATEX directives.

Typical Applications of Trough Screw Conveyors

Trough screw conveyors are widely used in industrial processes where bulk materials need to be transported in a controlled and efficient manner. Example applications include:

Food industry:
Transport of flour, sugar, salt, and other food ingredients, with a focus on hygiene and easy cleaning.
Chemical industry:
Transport of plastics, pigments, and chemical powders with controlled dosing.
Recycling and waste processing:
Transport of sludge, wood fibers, and other recyclable materials.
Pharmaceutical sector:
Optimized for hygienic handling of pharmaceutical powders and tablets.

Typische Toepassingen van Trogtransporteurs

Why Choose Klinkenberg Trough Screw Conveyors?

Klinkenberg B.V. has over 150 years of experience in designing and manufacturing screw conveyor systems. Our trough screw conveyors are high quality and can optionally be delivered with ATEX certification or designed according to the latest EHEDG design guidelines. Our team of experts is ready to advise you on the best solution for your specific application.

Waarom Kiezen voor Klinkenberg Trogtransporteurs?

ConclusionReliable Bulk Material Solution for Demanding Industries

Trough Screw Conveyors are a versatile and reliable solution for transporting bulk materials in various industries. With their flexible design and easy cleanability, they offer numerous advantages for technical specialists such as engineers, process engineers, asset managers, and technical buyers. At Klinkenberg B.V., we combine our extensive experience with high-quality materials to deliver trough screw conveyors that meet the highest standards. Contact us today to discover how our trough screw conveyors can optimize your processes.

Technology, Finishing, Safety, and Packaging We always select the right technology for your process

Klinkenberg technology includes the following variations:

Technology

If you would like to learn more about the underlying or applied technologies for screw conveyors—such as the use of bearings, seals, safety features, ATEX, preferred finishing, or packaging of the purchased machines—you can find more information in this section.

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Trough Screw Conveyor Variations

Swivel Unit

For ship loading applications, a screw conveyor can be equipped with a slewing ring construction, allowing the conveyor to pivot above a vessel. The slewing ring with external gearing is driven by a gear motor.

Hinged Grate Lid

Trough screw conveyors can be equipped with various lid types. The most common are bolted lids and hinged lids. If desired, bar grates or similar options can be applied.

Inclined Screw Conveyor

For trough screw conveyors, incline angles from 0° to 30° are possible. For angles above 30°, special lid or trough designs are used to prevent material backflow in the inclined screw conveyor.

Quick to Clean

Every food industry manufacturer’s nightmare: product contamination. You can prevent this by using our Klinkenberg Easy Clean system. The screws are easy to disassemble thanks to the innovative sliding mechanism.

Documentation Exclusive with a personal design

Trough Screw Conveyor

Product Brochure

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Bulk density table

Expressed in kg/m³ and lbs/ft³

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FAQ Direct answers to your questions

Quickly find answers to frequently asked questions about our products, from specifications to maintenance. Our FAQ section helps you make the right choice.

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Feel free to send us a message with your question.

Trough screw conveyors can transport a wide range of materials, from powders to granular substances.

Yes, our trough screw conveyors can be designed in accordance with the latest EHEDG design guidelines, making them suitable for hygienic applications.

Yes, we supply trough screw conveyors with ATEX certification for use in explosive environments.

The configuration of the screw flight (full flight, ribbon screw, or paddle screw) is selected based on the material properties and desired conveying characteristics. For cohesive or sticky materials, a ribbon screw is often used to minimize buildup, while a full flight screw is more efficient for conveying dry, free-flowing bulk materials. Our engineers analyze your process to recommend the most suitable configuration.

The screw speed affects both the conveying capacity and the degree of material compaction. A higher speed can increase capacity but may also lead to increased wear and potential material breakage for fragile products. For abrasive or brittle materials, a lower speed is often used to reduce damage and wear. Klinkenberg adjusts both speed and screw geometry to meet specific process requirements.

Yes, we provide comprehensive maintenance services to ensure the longevity and efficiency of your trough screw conveyor.

Absolutely. We design and manufacture tailor-made trough screw conveyors to meet the specific requirements of your process. Our engineers are happy to help find the best solution.

The maximum capacity depends on factors such as screw diameter, rotation speed settings, and material properties. Klinkenberg offers trough screw conveyors in various sizes and configurations to meet specific capacity demands.

Depending on the application and the type of bulk material, trough screw conveyors are manufactured from materials such as stainless steel (AISI 304 or AISI 316) for hygienic use, or wear-resistant steel for abrasive materials. Special coatings or surface treatments are also available.

The choice depends on desired cleanability, dust containment, and installation requirements. A trough screw conveyor is easier to clean and inspect thanks to its removable lid, while a tubular screw conveyor is better suited for closed systems with minimal dust emissions.

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What is a Trough Screw Conveyor?

Configurations and Advice