This dataset describes the construction of a 1-meter conveyor belt, a product used in large-scale transportation sites such as mines and ports. The dataset includes processes involving construction materials, energy consumption, and mechanical assembly; however, infrastructure such as production equipment manufacturing and factory construction are excluded from the system boundary. The life cycle inventory was compiled from multiple data sources, with certain data adjusted and updated based on industry report averages. EP (polyester) conveyor belts are primarily made from natural rubber and synthetic rubber, together with carbon black and other minor ingredients, processed through steps including mastication, mixing, forming, and vulcanization before being released from the factory. Assembly of conveyor machine components primarily uses steel materials such as wire and strip steel. welded from materials.