Belt-Driven Roller Conveyor for Box-Type Cargo

Product Overview

The Belt-Driven Roller Conveyor for Box‑Type Cargo is an automated logistics conveying equipment that uses belts as the driving medium to rotate rollers for transporting box‑shaped goods. Designed specifically for cartons, totes, plastic boxes, and other box‑type packages with flat, rigid bottoms, it is widely used for light‑ to medium‑duty horizontal and inclined conveying of boxed cargo. Thanks to its low noise, high speed, and smooth operation, it has become one of the most common conveying solutions in e‑commerce logistics, express sorting, warehousing and distribution, and industrial production.

The conveyor features a modular structure, with flexible combinations of frames, legs, and drive units. It supports both horizontal conveying and inclined conveying (gradient tailored to application requirements), and can be customised to fit different layouts and operational needs. Three drive options are available: O‑belt, PJ‑type Poly‑V belt, and timing belt (synchronous belt), covering everything from light‑duty high‑speed to medium‑duty high‑precision applications.

Three Belt Drive Options Explained

1. O‑Belt Drive – Light‑Duty, High‑Speed, Economical Choice

The O‑belt drive is the simplest and most cost‑effective belt‑driven solution. Its high elasticity and easy installation allow flexible groove placement. After installation, the O‑belt remains below the roller surface, so it does not interfere with cargo movement.

Key advantages:

• Simple construction, easy assembly and maintenance, low operating cost

• Smooth, quiet running with gentle start/stop

• Elastic cushioning reduces impact on goods

• Flexible for curves, suitable for short‑distance, high‑frequency conveying

Load capacity: Light duty (up to 30 kg per unit)

Typical applications: Small parcel sorting, light industrial product conveying, general carton handling, small‑to‑medium warehouses, courier stations, packaging lines

2. PJ‑Type Poly‑V Belt Drive – The Mainstream Medium‑Duty Choice

The PJ‑type Poly‑V belt is the most widely used drive method for box‑type cargo conveyors. The Poly‑V pulley is fixed at the roller end, separating the drive zone from the conveying zone. With a grooved friction engagement, it offers a large contact area and uniform force distribution, significantly increasing load capacity while retaining the high speed and low noise of O‑belts.

Key advantages:

• Quiet operation – equipped with precision ball bearings and polymer bearing housings for smooth, low‑noise running

• High conveying speed – up to 120 m/min

• Strong load capacity – maximum 180 KGS

• 9‑groove Poly‑V pulley (pitch 2.34 mm) – compatible with 2‑groove, 3‑groove, or 4‑groove Poly‑V belts

• Torque improvement – compared to round belts, a 2‑groove Poly‑V belt transmits approximately twice the torque

• Excellent protection – plastic end caps effectively seal against dust and splashing water

• Maintenance‑free – no lubrication or re‑tensioning required

• High transmission efficiency – up to 98%

Poly‑V belt selection guide (by roller pitch):

Selection should consider roller pitch, conveying speed, and load weight.

Typical applications: Full‑case batch conveying, medium‑sized logistics sorting, finished product transfer in factories, food/pharmaceutical production lines, warehouse inclined conveyors

3. Timing Belt (Synchronous Belt) Drive – Medium‑Duty High‑Precision Choice

The timing belt (synchronous belt) uses a toothed engagement drive, unlike friction‑based systems, achieving zero slip and zero error synchronised conveying. Timing‑belt‑driven steel rollers are high‑performance, high‑precision power transmission components, primarily used to build modular conveyor systems with high synchronisation requirements.

Key advantages:

• Zero‑slip transmission – constant speed and precise positioning

• High transmission efficiency

• High conveying speed – up to 120 m/min

• Medium‑duty capacity – maximum load 100 KGS

• Wide operating temperature – −5 to +40°C

• Material options – roller tubes available in carbon steel or stainless steel

Timing belt selection guide (by centre distance):

The centre distance for timing belts has strict limits; recommended tolerance is +0.5/0 mm.

Typical applications: Automated assembly lines, precision parts conveying, intelligent sorting systems, pharmaceutical sorting, fixed start/stop and accurate counting applications

Inclined Conveying Capability

The conveyor is not only suitable for horizontal applications but also supports inclined conveying, meeting the needs of height differences between floors or at loading docks.

• Inclination angle – customised based on cargo weight, friction coefficient, and belt selection.

• Anti‑slip design – optional anti‑slip roller surfaces or auxiliary hold‑down devices to ensure stable transport without slipping.

• Smooth transition – horizontal and inclined sections can share the same drive system for seamless transitions.

• Selection advice – for inclined conveying, we recommend 3‑groove Poly‑V belts or timing belts to provide greater driving torque.

Technical Specifications

Application Scenarios

This belt‑driven roller conveyor is suitable for light‑ to medium‑duty conveying of various box‑type packages with flat, rigid bottoms, such as cartons, totes, and plastic boxes. Typical industries include:

• E‑commerce logistics and express sorting – high‑speed sorting and conveying of cartons and parcels

• Warehousing and distribution centres – batch transfer and accumulation of full cases

• Inclined conveyor lines – cargo lifting between floors or at loading/unloading points

• Food and beverage industry – hygienic conveying of packed boxes and totes

• Pharmaceutical industry – precise conveying of drug cartons

• Electronics and light manufacturing – assembly and packaging conveying of components and finished products

• Daily chemicals – production line conveying of various boxed products

Product Advantages

✅ Low‑noise operation – Poly‑V/timing belt drives with precision ball bearings and polymer housings ensure smooth, quiet running.

✅ High speed and efficiency – maximum speed up to 120 m/min meets modern logistics demands for high throughput.

✅ High transmission efficiency – Poly‑V belt efficiency up to 98%, saving energy.

✅ Modular design – components are modular for easy assembly and strong versatility, allowing flexible combinations.

✅ Excellent protection – plastic end caps effectively seal against dust and splashing water.

✅ Good compatibility – can integrate with other conveying equipment (curved conveyors, inclined conveyors, etc.) to form complex logistics systems.

✅ Multiple drive options – O‑belt (light duty), PJ‑type Poly‑V belt (medium duty, 120 m/min, 180 KGS), and timing belt (medium‑duty high precision, 120 m/min, 100 KGS) – precisely matching different load and accuracy needs.

Why Choose Us?

• Professional customisation – we provide non‑standard design based on cargo weight, dimensions, conveying speed, inclination angle, and other requirements

• Quality assurance – high‑precision processing ensures long‑term stable operation

• One‑stop service – from solution design, equipment manufacturing to installation and commissioning, we offer full technical support

Contact us for professional selection advice tailored to your specific operating conditions.