Hollow pin conveyor chains are a type of conveyor chain that have hollow pins in their links. The hollow pins allow for the attachment of various types of accessories, such as crossbars, attachments, or flights, which can be used to convey materials along a conveyor system. The attachments can be added or removed easily by sliding them onto or off of the hollow pins.

Hollow pin conveyor chains are typically used in applications where the conveyor system requires a more flexible layout or where the materials being conveyed require specialized handling. They are commonly used in industries such as food processing, packaging, and material handling.

Hollow pin conveyor chains are available in various sizes and configurations to accommodate different load requirements and conveyor layouts. They may be made of different materials such as carbon steel, stainless steel, or plastic, depending on the specific application requirements.