Trough Screw Conveyor Manufacturer in India
U-Trough Screw Conveyor Manufacturer
in Ghaziabad, Delhi NCR & India
Open-top trough auger conveyor systems — the industry standard for cement, grain, food processing, fertilizer, chemicals, and bulk material handling where easy cleaning, fast product changeover, multiple outlet positions, and direct maintenance access are essential. Four screw flight types. MS and SS 304/316 construction. Capacity up to 30 TPH. Horizontal and inclined up to 20°. Custom-built in Ghaziabad. PAN India installation since 2007.
U-Trough Screw Conveyor — The Open-Access Industrial Standard for Bulk Material Handling
Neo Conveyors is a leading U-trough screw conveyor manufacturer in India since 2007. A U-trough screw conveyor combines a rotating helical screw flight with an open-top U-shaped semicircular trough — the most widely used screw conveyor design across cement, grain, food, fertilizer, chemical, and agricultural industries globally. The defining advantage of the U-trough over the tubular screw conveyor is direct operator access: removing the top cover takes minutes, giving full visual inspection and cleaning access without dismantling the system. This is why U-trough is the preferred choice wherever cleaning frequency, product changeover, maintenance access, or multiple outlet positions matter as much as throughput capacity. Multiple inlet and outlet positions, four screw flight types, and MS or SS 304/316 construction give the U-trough conveyor the operational flexibility that no other bulk material conveyor can match for horizontal or slightly inclined plant layouts. As part of our complete screw conveyor range →, every U-trough system is designed from your material, required TPH, and plant layout — fabricated at Ghaziabad and installed by our own engineers PAN India.
Screw Conveyor Type Navigator
U-Trough is one of 5 screw conveyor types Neo Conveyors manufactures. Select the type that matches your material and process requirement:
U-Trough Screw Conveyor — Live Industrial Operation
Watch Neo Conveyors' U-trough screw conveyor system in real industrial operation — open-top trough design, multiple outlet positions, and reliable continuous bulk material conveying at the customer's plant.
▶ U-Trough Screw Conveyor — Industrial Bulk Material Operation | Neo Conveyors
How a U-Trough Screw Conveyor Works — Screw Flight Selection Guide
The screw flight design inside the U-trough is the most critical factor in performance — not the trough size or motor power. Getting the flight type right for your material prevents the three most common operational problems: material build-up on the screw, uneven discharge, and excessive flight wear.
Screw Flight Type Selection Guide
Select flight type based on your material's flow characteristics, cohesiveness, and whether mixing or aeration during conveying is required. Our engineers specify the correct flight type from your material datasheet before manufacture.
Free-Flowing Materials
Continuous helical screw — maximum throughput for uniform, free-flowing materials. Fills trough to 30–45% cross-section for efficient, predictable conveying.
Best for: Cement · Grain · Salt · Fertilizer granules · Sugar
Sticky & Cohesive Materials
Open helix — the gap between the ribbon and centre shaft prevents material from building up on the pipe. Self-cleaning action during operation prevents blockage.
Best for: Wet cake · Damp clay · Animal feed · Sticky powders
Mixing & Aeration
Sections cut from the standard flight edge — creates turbulence in the material flow for gentle aeration or mixing during conveying without a separate mixing unit.
Best for: Compost · Sludge · Materials needing aeration
Blending & Conditioning
Paddles welded at intervals instead of continuous flight — material is pushed forward and mixed simultaneously. Combines conveying and blending in one unit.
Best for: Fertilizer blends · Food mixes · Conditioning applications
Standard full flight is specified for over 70% of Indian industrial U-trough applications — cement, grain, sugar, salt, and fertilizer. Ribbon flight is the standard for sticky and wet materials. Paddle flight is specified when the conveyor must also blend during transport.
The U-Trough Conveying Cycle — 4 Stages
Material Inlet
Bulk material enters through an inlet opening in the trough cover — via gravity from a hopper, silo outlet, or upstream equipment. Single or multiple inlets positioned at any point along the trough length. An inlet slide gate controls the feed rate.
Screw Rotation
The helical screw flight rotates inside the U-shaped trough, pushing material axially toward the outlet. The U-shape ensures the screw maintains contact with material along its full lower arc — maximising conveying efficiency compared to a flat-bottom or circular-bottom trough.
Controlled Discharge
Material exits through slide gate outlets positioned at one or more points along the trough. Multiple outlets allow one conveyor to serve several discharge points — slide gates are opened and closed individually to direct material to different destinations without moving the conveyor.
Cover Removal — Rapid Access
When cleaning, inspection, or maintenance is needed, the flat or hinged top cover is removed in minutes. The screw flight is fully visible from above — worn flights, material build-up, and blocked outlets are identified and corrected immediately without dismantling the system.
U-Trough Screw Conveyor — Technical Specifications
All systems are custom-designed from your material bulk density, required TPH, screw diameter, length, and plant layout. Every order begins with a capacity calculation by our engineers at no charge — including a GA drawing with every serious quotation.
| Capacity | Up to 30 TPH — calculated per material bulk density and screw diameter |
| Screw Diameter | 100 mm / 150 mm / 200 mm / 250 mm / 300 mm / 400 mm / 500 mm |
| Conveyor Length | As per plant layout — extendable with intermediate hanger bearings |
| Orientation | Horizontal or inclined up to 20° — standard flight |
| Screw Flight Type | Standard / Ribbon / Cut-Flight / Paddle |
| Trough Material | Mild Steel (MS) or Stainless Steel (SS 304 / SS 316) |
| Cover Type | Bolted flat covers or hinged covers — removable for rapid access |
| Inlet Options | Single or multiple inlets — positioned as per plant layout |
| Outlet Options | Slide gate or drop outlet — single or multiple positions along trough |
| Drive | Geared motor — flange mounted or foot mounted |
| Speed Control | Fixed speed or VFD variable speed |
| Automation | Manual / Semi-automatic / Fully automatic with PLC |
| Surface Finish | Painted / Powder Coated / Polished (SS food-grade) |
| Power Supply | 415 V, 3 Phase, 50 Hz |
Approximate Capacity Guide (Horizontal, 45% Fill)
| Screw Diameter | Light Material ~0.5 t/m³ | Heavy Material ~1.2 t/m³ |
|---|---|---|
| 150 mm | 1–3 TPH | 3–6 TPH |
| 200 mm | 3–6 TPH | 7–12 TPH |
| 250 mm | 5–10 TPH | 12–20 TPH |
| 300 mm | 8–15 TPH | 18–30 TPH |
| 400 mm | 14–22 TPH | 25–30+ TPH |
| 500 mm | Custom engineering — contact our team | |
Indicative only. Actual capacity depends on screw RPM, inclination, material bulk density, moisture, and fill ratio. Our engineers calculate exact capacity before manufacture — GA drawing provided with every quotation.
How to Select the Right U-Trough Screw Conveyor — A Practical Guide
Three parameters define the correct U-trough screw conveyor specification for your plant — material type, required throughput, and conveyor length. Use this guide to narrow your requirement before speaking to our engineers.
Not sure what specification you need? Share your material name, bulk density, required TPH, and conveyor length — our engineers will specify the correct system at no charge →
Materials Handled by U-Trough Screw Conveyors
U-trough screw conveyors handle a broad spectrum of bulk materials — from fine dry powders to moderately sticky semi-solids. The screw flight type, pitch, and RPM are matched to each material's bulk density, cohesiveness, moisture content, and abrasiveness.
For fine dust requiring zero emission: tubular screw conveyor → | For sludge and fibrous wet materials: shaftless screw conveyor →
U-Trough vs Tubular Screw Conveyor — Which Suits Your Plant?
The most important selection decision when specifying a screw conveyor — open U-trough or fully enclosed tubular. This comparison prevents the most costly screw conveyor specification error: choosing a sealed system when easy access is required, or an open system when dust containment is critical.
| Factor | ✅ U-Trough Screw Conveyor | Tubular Screw Conveyor |
|---|---|---|
| Housing type | Open-top U-shape with removable cover | Fully enclosed circular pipe |
| Cleaning access | Excellent — cover off in minutes, full screw visible | Moderate — end covers must be removed |
| Product changeover | Fast — open, clean, close | Slower — sealed system requires thorough purge |
| Multiple outlet positions | Easy — slide gates at any trough position | Possible but complex and more costly |
| Dust control | Covered — moderate containment (covered trough) | Excellent — zero dust at conveyor body |
| Inclined operation | Up to 20° — standard pitch | Up to 45° — enclosed prevents backflow |
| Fine powder handling | Good (covered) — some dust at inlet/outlet | Ideal — fully sealed material path |
| Food/pharma hygiene | Good — SS 304/316 with hinged covers | Ideal — enclosed, no ambient air contact |
| Capacity at same diameter | Higher — 45% fill possible vs 30% tubular | Lower — pipe limits fill ratio |
| Capital cost | Lower — simpler open trough fabrication | Higher — enclosed pipe construction |
| Best applications | Cement, grain, food, fertiliser, chemicals — easy clean & multi-outlet plants | Fine powder, pharma, chemicals — dust-free enclosed conveying |
Need enclosed dust-free conveying? Tubular Screw Conveyor → | Vertical lifting? Vertical Screw Conveyor → | Full range: All Screw Conveyors →
Why U-Trough Is the Most Widely Specified Screw Conveyor in Indian Industry
Open-top access, multiple outlet positions, four flight types, and broad material compatibility combine to make the U-trough screw conveyor the preferred bulk material handling solution across more Indian plants than any other conveyor type in its capacity range.
Open-Top Access — Cover Off in Minutes
Hinged or bolted covers removed without tools in 2–5 minutes. Full screw flight visible from above — worn flights, blocked outlets, and material build-up identified and corrected immediately, not after a costly production stoppage.
Multiple Inlet & Outlet Positions
Slide gate outlets at multiple trough positions allow one conveyor to fill several silos, hoppers, or process lines simultaneously or sequentially — eliminating the need for separate conveyors for each destination. Critical in fertilizer blending, grain distribution, and cement silo filling.
Four Screw Flight Types — Material-Matched
Standard, ribbon, cut-flight, and paddle — each engineered for a different material and process requirement. Correct flight selection prevents the three most common operational failures: build-up, blockage, and premature flight wear.
SS 304/316 Food-Grade Construction
Stainless steel 304 and 316 troughs with polished interiors and hinged covers meet FSSAI food safety and GMP standards — used for flour, sugar, spices, milk powder, and pharmaceutical ingredients where contamination-free conveying is mandatory.
Low Maintenance — Few Moving Parts
Rotating screw shaft and end bearing assemblies are the only moving parts. No belt, no chain, no rollers — low scheduled maintenance and predictable spare parts requirements over long service life.
PLC-Ready Automation
VFD speed control, PLC-compatible gate actuators, and level sensor integration available as standard options — enabling full plant automation integration without additional engineering complexity.
Common U-Trough Screw Conveyor Problems — and How to Prevent Them
Most screw conveyor operational problems are caused by incorrect specification at the design stage — wrong flight type for the material, incorrect screw pitch, undersized motor, or incorrect outlet gate design. Neo Conveyors engineers these decisions correctly before manufacture to prevent them entirely.
Industries Using U-Trough Screw Conveyor Systems
The U-trough screw conveyor is the most widely used bulk material conveyor across India's cement, agricultural, food processing, fertilizer, chemical, and waste handling industries — because no other conveyor type combines this level of operational access, multiple outlet flexibility, and material compatibility at this cost.
🏗️Cement & Fly Ash Plants
Horizontal transport of cement powder, fly ash, and lime between silos, hoppers, and packing lines. Covered trough with rubber-sealed joints minimises dust emission. MS construction with hard-faced standard flights for abrasion resistance. Multiple outlets for simultaneous silo filling from one conveyor.
Cement screw conveyor → Belt Conveyors🌾Grain & Agricultural Processing
Wheat, rice, paddy, maize, soybean, and pulse handling from intake pits to storage bins, from storage to processing mills, and from processing to packaging. MS trough with hinged covers for fast cleaning between crop changeovers. Standard or ribbon flight depending on material moisture.
Grain handling conveyor → Bucket Elevators🌿Food Processing & FMCG
SS 304/316 U-trough with polished interior and hinged covers for sugar, salt, flour, spices, milk powder, and food ingredients. Rapid clean-between-batch changeover is the critical operational requirement — hinged cover access reduces cleaning time to 5–10 minutes per changeover. FSSAI-compliant design documentation provided.
Food grade screw conveyor → Tubular Screw🌱Fertilizer Industry
DAP, urea, potash, and NPK granule and powder handling with multiple outlet positions for blending operations — one conveyor distributes to multiple blending bins simultaneously using slide gate outlets. Paddle flight option for fertilizer conditioning and blending during conveying without a separate mixer.
Fertilizer blending conveyor → Screw Conveyors🧪Chemical Industry
Soda ash, sodium carbonate, pigments, and industrial chemical powder conveying — covered MS or SS trough prevents dust emission and personnel exposure. Multiple inlet positions accommodate collection from several process discharge points into one transfer conveyor.
Chemical powder conveyor → Tubular Screw♻️Waste & Sludge Handling
Wet cake from filter presses, municipal sludge, industrial wastewater treatment sludge, and compost conveying — ribbon or cut-flight screw to handle sticky, fibrous material without blockage. Open-top access allows operators to check and clear any material build-up during operation without stopping the plant.
Sludge screw conveyor → Shaftless Screw🐄Animal Feed & Premix
Compound animal feed, premix, and fibrous agricultural by-products — ribbon flight screw with SS or MS trough. Handles the variable bulk density and slight moisture content of compound feed and premix without bridging or screw blockage during conveying.
Animal feed conveyor → Screw Conveyors⚡Power Plants & Ash Handling
Fly ash, bottom ash, and gypsum byproduct handling in thermal power station auxiliary systems. Covered U-trough with rubber gasket seals meets pollution control board requirements. High-capacity 300–400 mm diameter systems for continuous large-volume ash transfer to disposal silos.
Fly ash screw conveyor → Tubular ScrewShare Material & Layout — Get Free Screw Conveyor Design
Tell us your material name, bulk density, required TPH, conveyor length, number of outlets, inclination angle, and MOC requirement (MS/SS304/SS316). Our engineers will specify the correct flight type, screw diameter, and outlet positions — and provide a GA drawing with the quotation at no cost.
U-Trough Screw Conveyor — Real Plant Installations by Neo Conveyors
Three representative projects — fertilizer blending, food processing, and cement fly ash — showing the engineering decisions and operational results that distinguish a correctly specified U-trough screw conveyor from a catalogue purchase.
Blending Distribution Conveyor — 350 mm Dia, 20 TPH, 4 Outlets
A fertilizer blending unit needed to distribute three types of granular fertilizer (DAP, urea, potash) from three separate intake hoppers to four blending bins — with the ability to divert each material to any bin without separate conveyors for each combination. Previous conveyor system used six separate screw conveyors for this function.
Neo Conveyors engineered a single 12 m U-trough with paddle flight (blending during transport), 3 inlets, and 4 PLC-controlled slide gate outlets — replacing 6 separate conveyors with one system and one motor.
Multi-Product Transfer — SS 304, 200 mm Dia, 8 TPH, Hinged Covers
A flour mill producing 12 different flour grades needed to transfer flour from packaging machine discharge to a common despatch hopper — with frequent daily product changeovers between flour grades requiring fast, complete cleaning between runs. Regulatory FSSAI inspection required verifiable cleaning records and contamination-free transfer documentation.
Neo Conveyors supplied a 200 mm SS 304 U-trough with polished 2B interior bore, full-length hinged covers opening in one motion, food-grade shaft seals, and SS hinged outlet gates. Cleaning completed in 8 minutes per product changeover.
Fly Ash Transfer — MS 300 mm Dia, 25 TPH, 2 Outlets, Sealed Joints
A cement blending station needed to transfer collected fly ash from three bag filter hoppers to two blending silos — 18 m total run, 25 TPH throughput, and PCB dust emission compliance required at all trough joints and outlet gates. Previous belt conveyor had failed dust emission standards and required replacement.
Neo Conveyors designed an 18 m U-trough with gasket-sealed section joints and cover edges, 3 inlet openings over the bag filter discharge points, and 2 slide gate outlets for independent silo filling. Hard-faced flights specified for fly ash abrasion resistance.
U-Trough Screw Conveyor — Custom Configurations We Engineer
Every U-trough screw conveyor is custom-engineered to your material, throughput, plant layout, and process integration requirement. Common configurations that Neo Conveyors engineers and manufactures are listed below.
🏗️ MS Industrial Standard
Painted or powder-coated mild steel trough and flights for cement, fly ash, grain, fertilizer, and general industrial bulk material applications. Most economical configuration.
🍽️ SS 304 Food Grade
SS 304 polished trough, screw, and covers with food-grade mechanical seals and hinged full-length cover. For flour, sugar, spices, milk powder, and food ingredients — FSSAI-compliant design.
💊 SS 316 Pharma Grade
SS 316/316L with electro-polished bore, FDA-compliant seals, and cleanable design for pharmaceutical API, excipients, and high-purity chemical powders.
🔀 Multi-Outlet Configuration
Multiple slide gate outlets at engineered positions along the trough — PLC-controlled actuators for automated divert to different silos or process lines from one conveyor.
⬆️ Inclined (up to 20°)
Modified screw pitch and RPM for reliable inclined conveying up to 20° — for plants where a slight elevation change is needed within one conveyor without a separate transfer point.
⚡ VFD Variable Speed
Variable frequency drive for precise TPH control and soft-start torque — essential for cohesive materials, automated batching systems, and process-integrated metering applications.
🛡️ Hard-Faced Flights
Stellite or tungsten carbide hard-facing on flight edges for highly abrasive materials — silica, cement clinker dust, quartz sand — extending screw service life significantly.
🏗️ Covered with Sealed Joints
Rubber gasket-sealed trough section flanges and cover edges for fine powder and dust-sensitive applications requiring PCB compliance without a full tubular enclosure.
U-Trough Screw Conveyor — Industrial Buyer FAQs
Why Choose Neo Conveyors as Your U-Trough Screw Conveyor Manufacturer?
Screw Flight Matched to Material — Not Guesswork
Standard, ribbon, cut-flight, or paddle — specified based on your material datasheet, not a catalogue selection. Every flight type and pitch is confirmed before fabrication. Wrong flight type is the most common cause of screw conveyor operational failure — we prevent it at the design stage.
Multiple Inlet & Outlet Engineering — Precisely Positioned
Every inlet and outlet is positioned relative to screw flight pitch and rotation direction — not estimated. Outlet gates that are not correctly positioned create dead zones and uneven discharge. We calculate and draw every gate position before manufacture. Full screw range →
MS to SS 316L — Full MOC Range In-House
All construction materials fabricated in-house at Ghaziabad — no outsourcing of stainless steel trough work. Full quality control throughout, with material certificates and polish finish records provided for food safety audits. About Neo Conveyors →
PAN India — Our Own Engineers Install
Drive alignment, gate testing, cover seal check, and production trial run — all by Neo Conveyors' own team. No third-party contractors. One point of accountability from design to handover. Project gallery →
GA Drawing Provided With Every Quotation
Every serious enquiry receives a General Arrangement drawing showing trough dimensions, inlet/outlet positions, cover type, drive location, and support leg positions — before you place the order. You see exactly what you are buying. Send enquiry →
AMC & Spare Parts After Every Installation
Replacement screw flights, gate seals, hanger bearings, and coupling bushes available for every system. Annual Maintenance Contracts covering screw inspection, bearing lubrication, gate sealing, and drive servicing. Technical support →
Learn More — Screw Conveyor & Bulk Material Handling Guides
Screw Conveyor Complete Guide — All Types & Selection
U-trough, tubular, vertical, shaftless, and inclined screw conveyors compared for industrial buyers in India — how to select the right type for your material and process.
U-Trough Screw Conveyor Design Guide — Flight Selection & Outlet Positioning
How to choose the correct screw flight type, pitch, and outlet gate position for your U-trough screw conveyor — from engineering first principles for Indian industrial buyers.
Food Grade Screw Conveyor Guide — SS 304 vs SS 316
When to specify SS 304 versus SS 316 for food and pharma screw conveyors — MOC selection, surface finish, and FSSAI compliance documentation guide.
Conveyor Systems for Cement Plants — Complete Guide
Cement powder, fly ash, and clinker conveying — screw conveyor vs belt conveyor vs bucket elevator for Indian cement plant material handling engineers.
Screw Conveyor vs Belt Conveyor — When to Use Which
How to decide between a screw conveyor and a belt conveyor for your plant's powder or bulk material handling requirement — the complete engineering comparison for Indian buyers.
All Conveyor & Material Handling Blogs
Browse all Neo Conveyors technical articles, installation guides, and bulk material handling engineering resources.
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U-Trough Screw Conveyor Manufacturer Across India
Neo Conveyors supplies and installs U-trough screw conveyor systems for cement plants, grain mills, food processing facilities, fertilizer units, and chemical factories across all major industrial cities and states in India — from our Ghaziabad manufacturing facility.
Get a U-Trough Screw Conveyor Design — Free Capacity Calculation & GA Drawing
Share your material name, bulk density, required TPH, conveyor length, number of outlet positions, inclination angle, and MOC requirement. Our engineers will specify the correct flight type, screw diameter, outlet positions — and provide a GA drawing with a full no-obligation quotation.
