Tri-Roller Belt Conveyors

High-Capacity Conveyors for Bulk Material Handling

The O’Mara Tri-Roller Belt Conveyor is built to handle your toughest material handling challenges. Designed for inclines up to 30°, this heavy-duty conveyor system moves everything from fine, free-flowing products like seed and grain to large, coarse materials like silage, husks, and aggregate quickly, efficiently, and safely.

Every O’Mara conveyor is engineered for strength, stability, and longevity, combining precision fabrication, heavy-gauge steel construction, and exceptional guarding. With customizable options and multiple belting choices, our tri-roller conveyors deliver dependable performance in any agricultural, industrial, or processing application.

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What Is a Tri-Roller Belt Conveyor?

A tri-roller conveyor, also called a troughed belt conveyor, uses a set of three rollers to form the belt into a “U” shape. This troughing design helps contain bulk material, prevents spillage, and provides greater belt stability when handling heavy or uneven loads.

The result is a conveyor belt system that’s reliable, versatile, and capable of moving large volumes of bulk material over long distances or steep inclines with minimal maintenance.

How a Tri-Roller Conveyor Works

Three-Roller Support: Each idler station features a center roller and two angled side rollers, forming a trough that cradles the material.
Belt Movement: The conveyor belt glides smoothly across these rollers, guided by precision bearings and adjustable idler spacing.
Material Containment: The trough design keeps bulk products centered on the belt, reducing waste and improving safety.
Drive System: A direct-coupled drive eliminates slippage and reduces maintenance, while crowned pulleys ensure accurate belt tracking.

This proven system design allows for consistent material flow at steep angles without product rollback or loss.

Key Features of O’Mara Tri-Roller Conveyors

Incline Capability: Handles materials on inclines up to 30 degrees without compromising efficiency.
Heavy-Gauge Construction: 7-gauge steel drive and take-up terminals with 12-gauge intermediate sections for unmatched durability.
Welded Frame Design: 30° idler angle with 1.9” galvanized trough and return idlers for stable, long-lasting performance.
Precision Tracking: Adjustable idler stations and double-punched return rollers for precise belt alignment.
Low Maintenance: Direct-coupled drives eliminate secondary belts and pinch points for smooth, quiet operation.
Powder-Coated Finish: Standard corrosion-resistant finish in your choice of color.
Exceptional Guarding: All pulleys, shafts, bearings, and drives are factory-guarded for maximum safety.

Benefits of a Tri-Roller Belt Conveyor

1. Superior Material Containment

The three-roller “troughing” shape keeps material centered, minimizing spillage and improving efficiency in every load.

2. Heavy-Duty Performance

Built for continuous operation, O’Mara conveyors handle everything from grain and feed to silage, husks, and aggregate.

3. Versatility Across Materials

From small granular seed to bulky waste materials, tri-roller conveyors provide smooth transport under varying conditions and inclines.

4. Reliable and Low Maintenance

With fewer moving parts and durable construction, these conveyors deliver years of dependable service with minimal downtime.

5. Customizable to Any Application

Choose from multiple belt types, drive packages, discharge chutes, and guarding systems to match your operation’s exact needs.

Standard Specifications

Belt Widths: 18”, 24”, 30”, 36”, and 42”
Incline Range: Up to 30°
Drive Types: Direct-coupled, gear reduction, or right-angle drives
Roller Diameter:9” galvanized trough and return rollers
Pulley Options: Crowned and vulcanized rough-top head pulleys (6”–24” diameters)
Motor Options: TEFC 3-phase (208–460V), single-phase (230V), or explosion-proof/washdown duty
Construction: 7-gauge steel terminals, 12-gauge intermediate sections
Finish: Standard powder coat; stainless steel and galvanized options available

Optional Conveyor Features

Galvanized hip-roof top weather covers
Expanded metal or solid steel bottom covers
Rubber or metal belt skirting
Reversing center drives and gravity take-ups
Lined or unlined discharge chutes
Inlet boxes and receiving hoppers
Belt loaders and tripper conveyors
Structural supports and truss frame designs
Belt misalignment and speed sensors
Stainless steel construction for corrosive environments

Applications Across Industries

O’Mara Tri-Roller Belt Conveyors are used in a wide range of industries, including:

Agriculture: Seed, grain, feed, silage, and crop residue handling
Food Processing: Bulk ingredient transport and packaging
Manufacturing: Raw material and waste movement

No matter your material or environment, O’Mara conveyors deliver safe, steady, and efficient movement.

Why the Ag Industry Chooses O’Mara Tri-Rollers

Engineered for Longevity: Built with precision components and heavy-gauge steel.
Flexible Configuration: Designed to integrate into existing handling lines.
Reduced Maintenance: Direct-drive systems and accessible components simplify upkeep.
Proven Reliability: Trusted by leading agricultural and industrial facilities nationwide.
Custom Design Support: Our engineering team tailors each conveyor to your exact process and layout.

Move More with Confidence — Choose O’Mara

For bulk material handling that’s strong, safe, and built to last, choose the O’Mara Tri-Roller Belt Conveyor. Whether you need to move grain, feed, or aggregate, our conveyors deliver unmatched performance and durability with every load.

Our experienced engineering team will help you design a system that fits your operation perfectly.