What are the Key Differences Between Chain Driven Live Roller (CDLR) and Belt Driven Live Roller (BDLR) Conveyors?

Apr 6, 2023 | Belt Driven Live Roller, Chain Driven Live Roller, General

Conveyors play a crucial role in material handling systems, ensuring that products are efficiently transported from one location to another. In industrial settings, two of the most commonly used conveyor types are chain-driven live roller (CDLR) conveyors and belt-driven live roller (BDLR) conveyors. While both types have the same objective, they differ significantly in their construction, operation, and suitability for particular applications.

Here are some key differences between CDLR and BDLR conveyors, along with some reasons why you might choose one over the other depending on your application:


CDLR conveyors use a series of sprockets to drive a chain, which in turn powers the rollers. The rollers are typically made of steel or plastic and are connected to the chain by pins, allowing them to rotate and move products down the line.

On the other hand, BDLR conveyors use a belt made of rubber or other materials to drive the rollers. The belt is typically looped around the rollers and pulleys, with one end connected to a motor or other power source.


CDLR conveyors use a positive drive system, where the rollers are powered by the chain. This allows for a higher degree of accuracy in product placement and allows for the conveyor to handle heavier loads. They are also better suited for applications that require accumulation, where products need to be temporarily stopped before moving on.

BDLR conveyors, on the other hand, use a friction drive system, where the rollers are driven by the friction between the belt and the rollers. They are generally quieter than CDLR conveyors and can handle a wider range of products with varying shapes and sizes.


BDLR conveyors typically require more maintenance than CDLR conveyors. BDLR conveyors are typically a simpler design, but the belt may need to be periodically tensioned. Also, any worn or damaged parts may need to be replaced.

Depending on the environment, a CDLR chain may need to be lubricated and the sprockets checked for wear. However, in some cases, it’s better to not lubricate the chain. If any of the chain links or pins break, they will need to be replaced.


CDLR conveyors are well-suited for heavy-duty applications where products need to be moved quickly and accurately. They are often used in automotive, manufacturing, and distribution centers. CDLR conveyors are also ideal for applications where products need to be accumulated before being released downstream.

BDLR conveyors are ideal for applications where the products being transported are fragile or have varying sizes and shapes. They are often used in food and beverage, pharmaceutical, and packaging industries.

While both CDLR and BDLR conveyors have similar objectives, they differ significantly in construction, operation, maintenance, and suitability for specific applications. Careful consideration of your application’s unique needs and requirements will help you determine which conveyor type is the best fit for your material handling system. The team at Power Pack is here to fabricate the perfect conveyor for your needs. Contact us today.

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