Screw Conveyor & Feeders

Equipsilo

Cement Screw Conveyor

Cement Screw Conveyor

Industrial cement screw conveyor for silos, batching plants and loading lines. Tubular or U-trough construction with powder-tight seals moves fine powders—cement, fly ash, lime and fillers—cleanly and consistently. Retrofit-friendly flanges, inspection/clean-out access, and gearmotor drive make installation and service straightforward.

What it does

Transfers dry powders from silo outlets to weigh hoppers, mixers, bagging machines or loading points. Provides a steady, metered feed and keeps the conveying path dust-tight to maintain housekeeping and weighing accuracy.

Key benefits

  • Dust-tight conveying for fine powders → cleaner plant

  • Consistent feed → more accurate batching and stable mixer loads

  • Tubular or U-trough versions; modular sections for easy length/incline layout

  • Inspection/clean-out access, quick liner/flight service

  • Wear-resistant flighting & liners options for abrasive powders

  • Retrofit-friendly inlet/outlet flanges; matches common silo discharges

  • Drive options: direct-coupled or shaft-mounted gearmotor; VFD-ready

  • Works with aeration pads/nozzles and butterfly/slide-gate valves at silo outlets

Technical specifications

Type: Tubular screw conveyor or U-trough with bolted covers
Materials: Painted carbon steel; stainless options on request*
Diameter / pitch / speed: per material and duty*
Length & inclination: per site layout; supports horizontal or inclined*
Drive: Helical/bevel gearmotor, VFD-ready; guardable couplings*
Bearings: End and intermediate (hanger) bearings suited to fine powders*
Seals: Powder-tight shaft seals; purge/air-seal options*
Access: Inspection door/clean-out; serviceable liners/flight segments*
Accessories: Inlet slide/butterfly valve, level sensor ports, load bellow interface*
* Confirm all selections with your internal standards and project requirements.

Applications

Silo discharge to weigh hopper/mixer • feeding bagging lines • filter hopper discharge • transfer to loading bellows • screw-to-screw hand-off.

FAQ

Q: Only for cement?
A: Suitable for cement, fly ash, lime and mineral fillers; avoid sticky or wet materials unless configured accordingly.
Q: Can it run on an incline?
A: Yes—sizing considers inclination and required capacity; share your layout for selection.
Q: Can I replace an existing unit?
A: Yes. Modular sections and adapter flanges support retrofit; send flange and center-line data.
Q: What maintenance is typical?
A: Periodic bearing/seal checks, inspection of flights/liners, and verifying cover/guard integrity.

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Equipsilo

U-Trough Screw Conveyor

U-Trough Screw Conveyor

Industrial U-trough (U-channel) screw conveyor for silos, batching plants and loading lines. Bolted, dust-tight covers keep the line clean while modular trough sections and gearmotor drive provide a steady, metered feed of cement, fly ash, lime and fillers. Retrofit-friendly inlet/outlet flanges, inspection/clean-out access and wear options simplify service.

What it does

Transfers dry powders from silo outlets to weigh hoppers, mixers, bagging machines or loading points. The open-top U-trough with bolted covers allows easy access for inspection and liner/flight service while maintaining a powder-tight conveying path.

Key benefits

  • Dust-tight covers with gaskets → cleaner plant, safer housekeeping

  • Consistent feed → more accurate batching and stable mixer loads

  • Modular U-trough sections → quick layout for length and inclination

  • Easy maintenance: removable covers, clean-out doors, serviceable liners

  • Wear-resistant flights/liners available for abrasive powders

  • Retrofit-friendly inlet/outlet patterns; matches common silo discharges

  • Drive choices: direct-coupled or shaft-mounted gearmotor, VFD-ready

Technical specifications

Type: U-trough screw conveyor with bolted powder-tight covers
Construction: Painted carbon steel; stainless options on request*
Diameters / pitch / speed: selected for material and duty*
Length & inclination: per site layout (horizontal to moderate incline)*
Drive: Helical/bevel gearmotor; guardable couplings*
Bearings: End and intermediate hanger bearings for long runs*
Seals: Powder-tight shaft seals; purge/air-seal options*
Access: Inspection lids and clean-out ports; liner/flight segment service*
Accessories: Inlet slide/butterfly valve, level sensor ports, loading-bellows adapter*
* Confirm all selections with your internal standards and project requirements.

Applications

Silo discharge to weigh hopper/mixer • feeding bagging lines • filter hopper discharge • transfer to loading bellows • screw-to-screw hand-off.

FAQ

Q: When should I choose U-trough vs tubular?
A: U-trough gives easy access and suits horizontal/moderate inclines; tubular is preferred for higher containment or steeper layouts.
Q: Can it replace an existing unit?
A: Yes. Modular sections and adapter flanges support retrofit—share flange and center-line data.
Q: Suitable for abrasive powders?
A: Yes—specify wear-resistant flights/liners and select speed per your standard.
Q: How is it sized?
A: Provide material, capacity, length/incline and duty; selection is made per your internal sizing rules.

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Equipsilo

Stainless Steel Screw Conveyor

Stainless Steel Screw Conveyor

Industrial stainless steel screw conveyor for powders and fine granulates in silos, batching plants and process lines. Built in AISI 304/316L with tubular or U-trough construction to handle corrosive or hygiene-critical materials. Dust-tight covers, smooth welds, and gearmotor drive deliver clean, consistent conveying with easy wash-down and maintenance.

What it does

Moves dry powders from silo outlets to weigh hoppers, mixers, bagging machines or loading points while keeping the path powder-tight. Stainless construction resists corrosion and supports hygienic cleaning where required.

Key benefits

  • AISI 304/316L for corrosion resistance and hygiene-critical duties

  • Tubular or U-trough versions → choose access vs containment

  • Smooth, cleanable design → continuous welds, minimal ledges, easy wash-down

  • Dust-tight covers & seals → cleaner plant, better weighing accuracy

  • Modular sections → simple layout for length and inclination

  • Wear options (hardfaced flights/liners) for mildly abrasive powders

  • Retrofit-friendly inlet/outlet flanges; VFD-ready gearmotor

Technical specifications

Type: Tubular screw conveyor or U-trough with bolted powder-tight covers
Materials: AISI 304/316L; fasteners & shafts in stainless; food-grade gaskets on request*
Surface finish: 2B / glass-bead; electropolish on request*
Length / diameter / pitch / speed: selected per material, capacity and duty*
Seals: Food-grade lip seals / mechanical seals; purge options*
Bearings: End and intermediate (hanger) bearings suitable for powders*
Drive: Helical/bevel gearmotor, VFD-compatible; guardable couplings*
Cleanability: Removable covers, quick-release options; CIP spray ports on request*
* Confirm selections and ratings with your internal standards.

Applications

Food powders (sugar, flour, starch), salt, chemicals, lime, mineral fillers • hygienic or corrosive environments • silo discharge to weigh hopper/mixer • bagging and loading lines.

FAQ

Q: 304 vs 316L—when?
A: Use 316L for higher chloride/corrosion exposure; 304 for general duty per your site standard.
Q: Can it replace a carbon-steel unit?
A: Yes. Provide flange pattern and center-line; modular sections support retrofit.
Q: Is it suitable for inclined runs?
A: Yes—sizing considers inclination and required capacity.
Q: How is cleaning handled?
A: Choose smooth finishes, removable covers and optional CIP ports to suit your sanitation plan.
Q: What about abrasive powders?
A: Specify wear-resistant flights/liners and select speed per your standard.

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Equipsilo

Rotary Valve

Rotary Valve

Industrial rotary valve (rotary airlock/feeder) for silo discharge, dust collectors and cyclones. Maintains an airlock between pressure zones while providing a steady, metered feed of powders (cement, fly ash, lime, fillers) to screw conveyors or low-pressure pneumatic conveying lines. Built with robust body, stainless rotor, outboard bearings and quick-service options; available in drop-through or blow-through patterns.

What it does

Separates two pressure zones (e.g., silo/filter → conveyor/air line) and meters product from the upper vessel to the line below. The tight-clearance rotor limits air leakage/backflow, stabilizing conveying and batching.

Key benefits

  • Airlock + feeder in one → steadier conveying, cleaner plant

  • Drop-through / blow-through versions → match your layout and air system

  • Outboard bearings & shaft seals → longer life in dusty service

  • Replaceable or flexible tips (PU/NBR/stainless) → wear resistance & gentle handling

  • Quick-clean options (slide rails/hinged door) → faster maintenance

  • VFD-ready drive → adjustable feed rate

  • ATEX-ready builds on request (per site classification)

Technical specifications

Type: Drop-through (standard) or blow-through (direct to air line)
Rotor: Closed or open; 6–10 vanes; fixed/replaceable tips (PU/NBR/stainless)
Body & covers: Painted carbon steel or stainless options*
Bearings & seals: Outboard bearings; powder-tight shaft seals (purge options)*
Drive: Helical/bevel gearmotor; direct or chain drive; VFD-compatible*
Interfaces: Square/round flanges; adapters for common silo/filter outlets*
Temperature / pressure: For powder service & low-pressure airlock—set per your internal standard*
Options: Food-grade finishes; hardfaced rotors; torque limiter; position/proximity switch
* Confirm exact build and ratings with your internal standards.

Applications

Under silo outlets to screws/pneumatic lines • below bag filters/cyclones • dosing to weigh hoppers/mixers • discharging air slides and bins.

FAQ

Q: Is it an airlock or a feeder?
A: Both—its rotor maintains an air seal while metering product.
Q: Drop-through vs blow-through?
A: Drop-through feeds into a chute/screw; blow-through connects straight into a pneumatic line for compact layouts.
Q: Suitable for abrasive powders like cement/fly ash?
A: Yes—specify replaceable tips, hardfacing or stainless where needed.
Q: How do I size it?
A: Share material, required capacity, duty, pressure/temperature and flange pattern; we select per your site rules.
Q: ATEX version?
A: Available on request with compliant materials, earthing and labeling.

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Equipsilo

Shaftless Screw Conveyor

Shaftless Screw Conveyor

Industrial shaftless screw conveyor for difficult bulk solids—sticky, fibrous, stringy, or high-moisture materials as well as fine powders. No center shaft → no intermediate bearings and less build-up. U-trough with wear/liner plates and a discharge-end gearmotor drive provide smooth, low-RPM, high-torque conveying. Powder-tight covers support clean operation in plants.

What it does

Moves bulk solids from silo/hopper outlets to receiving equipment (screens, presses, mixers, bins) while limiting hang-ups. The open spiral carries product over a replaceable low-friction liner, reducing clogging and easing maintenance.

Key benefits

  • Handles hard-to-convey materials: sticky fines, filter cake, fibers, flakes

  • No center shaft → fewer blockage points, no hanger bearings

  • Low RPM / high torque → gentle, steady feed; reduced wear

  • Replaceable liners (UHMW-PE / wear plate) → long service life

  • Powder-tight covers & seals → cleaner plant, safer housekeeping

  • Modular U-trough sections → easy layout, incline options

  • Retrofit-friendly inlets/outlets; VFD-ready drive

Technical specifications

Type: U-trough shaftless spiral conveyor with bolted covers
Spiral: Heavy-duty shaftless spiral (carbon or stainless steel)*
Liner: UHMW-PE or wear-resistant plate; replaceable panels*
Drive: Discharge-end gearmotor, torque arm; VFD-compatible*
Seals: Powder-tight shaft seals; purge/air-seal options*
Access: Removable covers; clean-out ports at strategic points*
Materials: Painted carbon steel or stainless options for corrosive duty*
* Confirm selections and ratings with your internal standards.

Applications

Difficult powders • filter cake/sludge-like solids • fibers/wood dust • screenings • damp sand/lime • silo/hopper discharge to presses, mixers, bins or loading/bagging.

FAQ

Q: When choose shaftless over shafted?
A: Choose shaftless for sticky/fibrous/high-moisture materials or when you want to avoid hanger bearings and build-up.
Q: Can it be inclined?
A: Yes—design considers inclination and duty; share layout for selection.
Q: Liner options?
A: UHMW-PE for low friction; wear plate for abrasive duties—pick per your standard.
Q: Cleanability?
A: Removable covers and replaceable liners simplify cleaning and upkeep.

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