Narrow Belt Conveyor

1. Key Features

The Long-Distance Flat Belt Conveyor is specifically engineered for extended conveying applications, focusing entirely on practical performance and real operational value. It is designed to meet the continuous transportation needs of bulk materials across multiple industries.

Stable Long-Distance Conveying
Utilizing high-strength conveyor belts and reinforced support structures, a single unit can achieve horizontal conveying distances ranging from hundreds of meters to several kilometers. This eliminates the need for multiple transfer points, reduces material handling loss and equipment investment, and prevents spillage or impact damage during transfer, ensuring continuous and stable conveying performance.

High Load Capacity and Large Throughput
Capable of handling heavy-duty materials exceeding 50 kg/m, with a conveying capacity of 500–3000 tons per hour. It is ideal for high-frequency, large-volume material transport in large-scale production environments such as mining and port operations.

Reinforced and Durable Structure
All major components—including the frame, idlers, and drive system—are designed to meet long-distance and heavy-load standards. The system offers excellent resistance to tension, deformation, and impact, enabling 24/7 continuous operation with low failure rates. This significantly reduces downtime and ensures production continuity.

Intelligent and Safe Operation
Equipped with multi-drive systems, automatic tensioning, belt misalignment protection, overload braking, and full-line monitoring systems. The conveyor operates without slipping, deviation, or material accumulation, ensuring high safety and suitability for automated and unmanned production environments.

Wide Material Adaptability
Suitable for conveying coal, ore, grain, building materials, chemical raw materials, and packaged goods. It performs reliably under complex conditions such as dust, humidity, and extreme temperatures, without requiring additional specialized equipment for different materials or environments.

2. Core Structure and Key Components

Compared to standard short-distance conveyors, the long-distance flat belt conveyor is comprehensively reinforced to handle extended distances and heavy loads. All key components are designed for high-load, long-cycle operation.

2.1 High-Strength Flat Belt (Core Conveying Component)

The conveyor belt is typically made of steel cord rubber (ST type) or high-strength polyester/nylon materials, specifically engineered for long-distance applications.

• Tensile strength: 2000–6000 N/mm

• Cover thickness: 3–8 mm wear-resistant rubber

• Properties: Impact-resistant, abrasion-resistant, oil-resistant, and chemical-resistant

• Suitable for highly abrasive materials such as coal and ore

Standard belt widths range from 500–2000 mm, with 800–1600 mm commonly used in long-distance applications. Smooth surfaces are ideal for packaged goods, while patterned surfaces are suitable for bulk materials. The flat design (without sidewalls or cleats) ensures stable horizontal conveying without material deviation or accumulation.

2.2 Multi-Drive System (Power Core)

The system adopts a combination of head drive and intermediate drives instead of a single motor. Typically, one drive station is installed every 500–1000 meters to distribute the load evenly.

• Components: Variable frequency motor, hardened gear reducer, fluid coupling, drive pulley

• Speed range: 0.8–5 m/s

• Features: Soft start, smooth acceleration, precise speed control

Drive pulleys are rubber-lagged (60–70 Shore A hardness) to increase friction and prevent belt slipping. Redirect pulleys are reinforced to withstand high tension. Safety devices such as backstops, brakes, and overload protection prevent reverse rotation and material accumulation during shutdown.

2.3 Reinforced Idlers and Support Structure

To address belt sagging, deviation, and vibration over long distances:

• Carrying idlers: Diameter 89–159 mm, spacing 0.8–1.2 m

• Return idlers: Spacing 2–3 m

• Self-aligning idlers: Installed every 10–15 sets

High-precision sealed bearings ensure low resistance and long service life. The frame is constructed from heavy-duty carbon steel with reinforced supports every 50–100 meters, providing excellent resistance to deformation and ground settlement.

2.4 Automatic Tensioning System

A dual system combining gravity tensioning and hydraulic automatic tensioning ensures constant belt tension.

• Gravity tensioning: Stable, adjustable, and low maintenance

• Hydraulic tensioning: Real-time compensation for belt elongation and load changes

This prevents slipping and misalignment, ensuring stable long-distance operation.

2.5 Intelligent Control and Safety Protection

The control system uses PLC programming with a touchscreen interface, supporting manual, automatic, and integrated operation modes.

Safety features include:

• Belt misalignment switches

• Pull-cord emergency switches

• Slip detection

• Material level sensors

• Temperature monitoring

• Smoke alarms

Optional IoT modules enable real-time monitoring of speed, tension, temperature, and current, with fault prediction and remote diagnostics capabilities.

2.6 Auxiliary Components

• Cleaning systems: Head cleaners and plow cleaners to remove residual materials

• Discharge systems: Fixed plow or mobile tripper for multi-point unloading

• Protective systems: Safety guards, dust covers, and rain shelters for outdoor installations

These components enhance efficiency, extend service life, and ensure environmental compliance.

3. Key Technical Parameters (Standard Models)

• Conveying length: 100–10,000 m (extendable)

• Belt width: 500–2000 mm

• Speed: 0.8–5.0 m/s (recommended 1.6–3.5 m/s)

• Capacity: 500–3000 t/h

• Load capacity: 50–200 kg/m

• Drive power: 15–200 kW per station

• Noise level: ≤85 dB

• Operating temperature: -20°C to +40°C

• Frame material: Carbon steel (optional 304 stainless steel)

4. Main Applications

Mining and Coal Industry
Used for long-distance transport of coal, ore, and tailings from underground to surface operations, improving efficiency and reducing manual handling.

Power and Building Materials Industry
Applicable in coal handling systems for thermal power plants, cement production lines, and aggregate transport.

Ports and Logistics Industry
Suitable for bulk cargo handling (grain, coal, ore) and long-distance package sorting in large logistics centers.

Grain and Chemical Industry
Enables enclosed conveying of grains (wheat, corn, soybeans) and chemical materials (powder and granules), meeting hygiene and safety standards.

Metallurgy and Light Industry
Widely used in steel plants, paper mills, and textile factories for continuous heavy-duty conveying operations.

5. Selection Guidelines

Based on Conveying Distance

• 100–500 m: Single head drive + gravity tension

• Over 500 m: Multi-drive + hydraulic tension + dense idlers

Based on Material Characteristics

• Abrasive materials: Steel cord rubber belt

• Food-grade materials: Polyester belt

• Chemical materials: Corrosion-resistant belt

Based on Capacity Requirements
Larger belt width and higher speed increase capacity. For long-distance applications, a moderate speed of 1.6–3.5 m/s is recommended.

Based on Working Conditions

• Outdoor: Add rain and dust covers

• Dusty environments: Fully enclosed design

• Hygienic industries: Stainless steel and food-grade materials

Based on Automation Needs

• Basic: Manual control

• Standard: VFD + PLC control

• Advanced: Remote monitoring and smart systems

6. Key Advantages

High Efficiency for Long Distances
Reduces transfer points, minimizes material loss, and lowers infrastructure and equipment costs.

Stable and Durable
Robust construction ensures long service life, low maintenance, and reliable continuous operation.

Safe and Reliable
Comprehensive protection systems effectively prevent slipping, misalignment, reversal, and material accumulation.

Energy Efficient
Saves 15%–25% energy compared to multi-stage short-distance conveying systems.

Highly Adaptable
Customizable in length, width, material, and protection configurations to suit various industries and working conditions.