Modular Trough Screw Conveyor | Sectional Industrial Auger

Core Advantages of Modular Trough Screw Conveyor U-Shaped Trough Design

Traditional fully welded troughs are constrained by sea freight container dimensions (20 ft container limit: 5.8 m; 40 ft high cube container limit: 11.8 m). Overlength equipment requires cutting for transport and re-welding on site. The Modular Trough Screw Conveyor addresses cross-border shipping and site installation constraints through standardized sectional engineering.

Standardized Container Loading and Sea Freight Space Optimization

Vertical Stacking Loading: Standard 1.5 m and 3.0 m trough sections fitted with protective pads can be stacked vertically in an alternating arrangement inside standard containers, increasing freight container space utilization by over 35%.

Zero On-Site Weld Assembly: End flanges feature built-in pin holes and high-strength bolts. Installation crews can complete assembly using standard tools on site, eliminating hot work permit approval procedures.

Sectional Structure and Maintenance Convenience

Quick-Release Covers and Clamps: The trough cover uses hand-operated rubber sealing toggle clamps or bolt pressure strips. Opening the cover plate allows internal cleaning or inspection of the trough.

Split-Type Hanger Bearing Housings: Intermediate hanger bearings are installed when spans exceed 4 meters, utilizing split two-piece alloy bushings that allow bushing replacement without dismantling adjacent screw shafts.

Technical Specifications Table

Module Model	Trough Width (mm)	Standard Section Length (m)	Capacity (m³/h)	Screw Outer Dia. (mm)	Plate Thickness (mm)
MTC-150	150	1.5 / 3.0	5 – 12	140	3.0
MTC-250	250	1.5 / 3.0	15 – 35	230	4.0
MTC-350	350	1.5 / 3.0	40 – 80	330	5.0
MTC-500	500	1.5 / 3.0	90 – 180	470	6.0

Application Scenarios for Modular Trough Screw Conveyors

The equipment is suitable for horizontal or slightly inclined (≤15°) conveying of mild to moderately abrasive powders, granules, and small lump materials.

Bulk Material Workshops and Silo Bottom Transfer: Positioned beneath silos as volumetric feeding devices, or receiving materials from different discharge outlets in multi-point feeding production lines.

Open-Air and Building Material Plant Areas: Adding cover plates equipped with sealing gaskets over the trough keeps materials dry in wind-blown dust and rain environments while preventing dust spillage.

Industry Standards and Compatibility: Flange connection dimensions, shaft end keyways, and bolt hole pitches of the modular sections comply with CEMA (Conveyor Equipment Manufacturers Association) and DIN 2573 industrial standards, allowing direct integration as replacement sections and components for existing trough conveyor systems such as Cimbria.

Frequently Asked Questions

Q1: What is a trough conveyor and where is it used?

Answer: A trough conveyor is material handling equipment featuring a U-shaped or rectangular trough cross-section, relying on a rotating screw inside to advance material along the trough bottom. The equipment is used for continuous conveying of bulk materials such as grain processing, cement powder, power plant ash, wood chips, and plastic granules under horizontal or small-incline conditions.

Q2: How long can a modular trough screw conveyor be extended?

Answer: Subject to sagging and bending deformation from self-weight, a single screw shaft cantilever length is controlled within 3.5 – 4.5 meters without hanger bearing support. Adopting a modular U-shaped trough design, intermediate hanger bearings are installed at every 3.0 m standard section joint for axial positioning, allowing total conveying distances to extend seamlessly up to 40 – 50 meters.

Q3: Are the trough modules interchangeable for easy maintenance?

Answer: Yes, they are interchangeable. All trough sections and screw components are machined on CNC machine tools and laser cutting equipment according to standardized drawings. When a specific section of the trough or screw blade experiences wear from material scouring, operators can separately remove that 1.5 m or 3.0 m module and replace it with a new section without dismantling the entire equipment.

Get Technical Drawing & Modular Quote

Please provide the following on-site operating parameters when submitting selection requirements:

1. Material name and bulk density (t/m³)
2. Required hourly conveying capacity (m³/h or t/h)
3. On-site total conveying distance and inclination angle (meters / degrees)
4. Specified trough material (Carbon Steel Q235B / 304 Stainless Steel / 316L Stainless Steel)
5. Number of inlet/outlet ports along with specific location dimensions