Which conveyor type is used in systems where gravity can be utilized to move products?

The correct choice highlights the use of a conveyor type specifically designed to utilize gravitational force for product movement. A gravity conveyor operates by leveraging the weight of products and the incline of the conveyor to facilitate movement without the need for external power. This makes it particularly effective in applications where products can naturally flow downwards, such as in shipping and receiving areas or assembly lines with a slight gradient.

Gravity conveyors are versatile and easy to maintain, making them a practical choice for many industries. They are often used in scenarios such as bulk handling, transporting items in warehouse operations, and facilitating the sorting of packages. The simplicity of their design contributes to lower operational costs and results in efficient material handling.

The other options do not primarily rely on gravitational force for movement. Bulk conveyors are typically used for transporting bulk materials and require powered systems. Sorter conveyors are designed for directing products to designated locations and usually involve powered components. Accumulator conveyors are used to hold or buffer products and often depend on powered mechanisms to control the flow. Hence, the specific functionality of gravity conveyors makes them the ideal choice for applications where gravity can assist in moving products.