Screw Conveyor Troughs

With over 200 standard troughs available plus custom or specially designed screw conveyor troughs, we have a trough for every bulk material handling screw conveyor application out there. A trough acts as the housing for a screw or screws dependent upon the length of the system and comes in an array of standard materials such as steel, abrasion-resistant steels, hot-dipped galvanized steel, and any other conceivable material that is required for the application at hand. Our standard troughs are the most commonly used U-trough but additional designs such as tubular housings and rectangular troughs are also available.

Types Of Screw Conveyor Troughs

Double Flanged Trough

The double-flanged screw conveyor trough is one of the most commonly used troughs throughout the screw conveyor industry because of its highly functional and durable design. More specifically, the double flanges provide ample structural strength improvement as well as rigidity without adding additional weight, while also providing a platform for a dust-tight seal when paired with the Barron flanged cover. This style of a trough is available in sizes up to 24″ and can be made in steel gauge thicknesses up to gauge 10. They can also be formed out of stainless steel or other material-specific needs that the application might require. Nu-Weld end flanges are continuously jig-welded on each end to assure alignment and tight connecting joints, and if supporting feet are needed they are spaced at the flange joints. We also supply trough saddles as well as all the necessary accessories needed for double-flanged troughs.

Angle Trough

Angel troughs are equipped with high-strength structural steel angels along the top edge of the trough to provide superior rigidity and strength across all trough sizes and gauge thicknesses. Nu-Weld end flanges are continuously jig-welded to each end to ensure alignment and tight connecting joints when installed. They can also be formed out of stainless steel or other material-specific needs that the application might require. Additional trough modifications such as a perforated bottom, a drop bottom for sanitary installations, jacketing for heating or cooling, and others are also available for angle troughs. Additionally, these are typically equipped with a Tite-Seal cover but we also offer additional cover types such as the dome flanged cover, hip roof cover, and others are available. We can also supply supporting feet that are mounted at the flange joints as well as trough saddles.

Flared Trough

Flared screw conveyor troughs are designed to allow the standard 1/2″ clearance between the screw and the trough bottom. Utilization of the flared sides greatly improve the feeding and conveying action, particularly when conveying materials that are not entirely free-flowing, or materials in large slabs or pieces. The top edges are flanged to provide superior cover support and Nu-Weld steel end flanges are continuously jig-welded to each end to assure alignment and tight joints when installed. Besides standard steel, flared troughs can be furnished in stainless steel, Monel, or other alloys. Covers are usually bolted on or furnished with screw or spring clamps and can be flat for interior or hip roof for exterior applications. We also stock a wide array of flared trough ends as well as other screw conveyor parts.

Channel Trough

The specially designed channel trough is made with a separate rolled or formed steel bottom for use where severe abrasion or corrosion factors require frequent trough replacements. The bottom is bolted to the structural steel side channels making a very rigid unit that can be used where trough supports are necessarily widely spaced.

Dust Seal Trough

Dust seal troughs are formed with special Z-bars along the topsides and channels across the top width. This forms a continuous pocket into which the flange cover fits. This pocket can then be filled with sand, sponge rubber, or the material being conveyed to provide a dust-tight seal that will allow quick access to the trough interior.

Tite-Seal Drop Bottom Trough

Gaining quick access to the screw conveyor and trough can be a daunting task at hand unless you have one of these specially designed drop-bottom troughs. The drop bottom trough gives you almost instant access to the screw conveyor. It works by having a hinged bottom section that swings open when the clamps are disengaged. The edges of the opening are gasketed to seal when closed. The trough can be equipped with a single flange or be double-flanged and can be fitted with any choice of cover.
Tite-Seal Drop Bottom Trough Information:

• The hinge side and latch are adjustable to secure the seal.
• Product pressure points are reinforced to prevent leakage.
• Drop bottom fits standard troughs of 10-gauge and heavier.

Jacketed Trough

The jacketed troughs are designed to carry an agent for heating, cooling, or drying of material while it is being conveyed. A former jacket is continuously welded to a standard trough or a trough built to specific standards. It is important to note that jacketed troughs are not designed or constructed to be pressure vessels.

Screw Conveyor Trough Dimensions

Double Flanged Trough Dimensions

angle 20″ screw conveyor trough X 6ft long is fitted with structural steel angles along the trough’s top edge to provide excellent strength and rigidity. To ensure a tight fit and perfect alignment when installed, NU-Weld end flanges are continuously jig-welded on each end. Angel troughs are typically formed of hot-rolled steel, but we can also furnish them out of stainless steel or other material types that the application might require, including a hot-dipped galvanized steel. Special modifications such as a perforated bottom, a drop bottom for easy access and cleaning, jacketing for heating and cooling, or others specific to the application at hand are also available. These troughs are normally fitted with a tite-seal cover, but other cover types such as dome, flanged, or hip-roof are also available. We also supply trough saddles as well as a range of other screw conveyor parts. If supporting feet are required, they will be mounted at the flange joints. For additional information or to get a quote on angle 20″ screw conveyor trough X 6ft long, contact our customer support team, and we will be happy to assist you!

Angle 20″ Conveyor Trough X 6ft Long

• Diameter of Conveyor: 20″
• Trough Thickness: 10″
• Dimension (A): 21″
• Size of Angles (B): 2-1/2″ x 2-1/2″ x 1/4″
• Dimension (C): 13-1/2″
• Weight Per Ft: 37LBS

SELECTION & TECHNICAL QUESTIONS

Q1: How do I select the right conveyor model? What information should I provide?

> To recommend the most suitable solution, please provide the following details:

> 1. Material type: What material are you conveying? (e.g., fly ash, wood chips, biomass pellets, bottom ash, etc.)

> 2. Material properties: Particle size, temperature, moisture content, abrasiveness

> 3. Capacity requirement: How many tons per hour (t/h) do you need?

> 4. Installation conditions: Conveying distance, incline angle, space limitations

> 5. Application industry: Which industry is this for? (e.g., waste-to-energy plant, biomass power plant, cement plant)

> You can also email us or contact us via WhatsApp. Our engineers will get back to you within 24 hours.

Q2: What is the difference between screw conveyors and chain conveyors? Which one should I choose?

> Both types have different applications:

> – Screw Conveyors: Best for powdery and small-grain materials (e.g., fly ash, cement powder). Good sealing performance, simple structure, low maintenance cost.

> – Chain Scraper Conveyors: Best for bulky, highly abrasive materials (e.g., bottom ash, municipal solid waste, biomass fragments). Supports multiple inlet and outlet points.

> – Bucket Elevators: Ideal for vertical or steep-incline material lifting.

> If you are not sure, tell us your material and working conditions, and our engineers will help you choose.

Q3: Can your equipment handle high-temperature materials? What is the maximum temperature?

> We can customize equipment according to material temperature:

> – Standard type: 0~80°C, carbon steel

> – Medium temperature type: 80~200°C, thickened wear-resistant liner

> – High temperature type: 200~400°C, special heat-resistant steel, optional cooling jacket

> Please tell us your material temperature, and we will recommend the most suitable material solution.

Q4: Are there any limits on conveying distance and lifting height?

> Standard design range:

> – Screw conveyor: Single section up to 70 meters; multiple sections can be connected for longer distances

> – Chain conveyor: Single machine up to 60 meters

> – Bucket elevator: Lifting height up to 50 meters

> We can also customize for extra-long distances or special angles. Contact us for detailed solutions.

Q5: Do you provide explosion-proof design?

> Yes. For explosive and flammable conditions such as pulverized coal and biomass dust, we offer:

> – Explosion-proof motors (Ex d IIB T4 standard)

> – Reserved openings for explosion vents / rupture discs

> – Fully sealed structure to prevent dust leakage

> Please specify your explosion-proof rating requirements.

CUSTOMIZATION & MANUFACTURING

Q6: Do you support customization? What is the lead time?

> Over 90% of our equipment is customized according to customer working conditions. Standard models take about 90–120days. Special customizations take 120–180 days, depending on configuration complexity.

Q7: What material options do you offer?

> Common materials include:

> – Carbon steel (Q235B): Standard working conditions

> – Wear-resistant steel (NM400/NM500): Highly abrasive materials

> – Stainless steel 304/316L: Food, chemical, corrosion-resistant requirements

> – Bi-metal wear-resistant composite plate: Extreme abrasion conditions

> We will recommend the most cost-effective material solution based on your material properties.

Q8: What certifications do you have?

> We hold the following certifications:

> – ISO 9001:2015 Quality Management System

> – ISO 14001 Environmental Management System

> – ISO 45001 Occupational Health & Safety Management

> – CE Certification (EN 1090 Steel Structure)

> If you need scanned copies of specific certificates, please contact us.

DELIVERY & LOGISTICS

Q9: Which countries do you export to? Do you have export experience?

> Our equipment has been exported to more than 20 countries worldwide, including:

> – Europe: Germany, France, Poland, Turkey, etc.

> – Southeast Asia: Singapore, Thailand, Indonesia, Vietnam, etc.

> – Middle East: Saudi Arabia, UAE, etc.

> – South America**: Brazil, Chile, etc.

> We are familiar with the full export process: packaging, customs declaration, and ocean freight. We can provide FOB, CIF, and other trade terms.

Q10: What is your packaging method? Is it suitable for long-distance ocean shipping?

> Export-standard packaging:

> – Large items / complete machines**: Rust prevention + waterproof film + fumigated solid wood pallet

> – Precision components: Wooden case with shock-absorbing filling

> – Random accessories: Categorized packing with detailed packing list

> All wooden packaging meets IPPC fumigation standards for direct customs clearance.

Q11: What is your minimum order quantity?

> We do not have a strict minimum order quantity. Single-unit orders are welcome. Bulk orders can enjoy more favorable pricing.

INSTALLATION & AFTER-SALES

Q12: Do you provide installation guidance? Do engineers need to come to site?

> We offer two service options:

> 1. Remote guidance: Detailed installation drawings and operation manuals, video guidance for installation (free of charge)

> 2. On-site service: Dispatch engineers to site for installation and commissioning (travel costs are additional)

> Most customers choose remote guidance. Our equipment is designed as a modular structure for easy installation.

Q13: What is the warranty period? What are the wearing parts?

> Standard warranty period is 12 months (from the date of arrival at port).

> Wearing parts list:

> – Chain / screw flights: Approximately 1–3 years, depending on material abrasiveness

> – Liners: Approximately 2–4 years

> – Bearings: Approximately 2–3 years

> We recommend ordering a wearing-parts spare kit together with your first order.

Q14: How do you solve problems during operation?

> We provide 7×24 technical support:>

> – Response within 24 hours for technical issues

> – Remote video troubleshooting guidance

> – Engineer on-site service when necessary

> – Common spare parts in stock for fast delivery

QUOTATION & COOPERATION

**Q15: How can I get a quote? How long does it take?

> Quotation process:

> 1. You provide material parameters, capacity, installation conditions, and other requirements

> 2. Our engineers evaluate and select the appropriate model

> 3. Formal quotation and technical proposal provided within 7 working days

> You can contact us via email, or the online inquiry form.

Q16: What are your payment terms?

> Standard payment terms:

> – 30% advance payment: After contract signing, to start production

> – 70% balance: Before shipment, or against copy of Bill of Lading

For long-term cooperative customers, more flexible payment terms can be negotiated.

Follow these 3 steps to find your ideal conveyor solution

Step 1: Identify Your Material Type

Different materials require different conveyor designs. Tell us what you are conveying:

Step 2: Define Your Working Conditions

Please prepare the following parameters before contacting us:

Step 3: Choose Configuration Options

Based on your answers above, our engineers will recommend:

Material grade — carbon steel / wear-resistant steel / stainless steel

Sealing type — open trough / fully enclosed / gas-tight

Drive system — motor power, gearbox brand, speed range

Auxiliary options — explosion-proof motor, cooling jacket, cleaning device, level sensors

 Not Sure Where to Start?

Send us your basic requirements, and our engineers will design a customized solution for you — completely free.

Email: bootec@bootecgroup.com  Response time: Within 24 hours

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