Sturdy dump car wheels are made from various mixes of synthetic and natural rubber. They are designed to be large and durable to traverse all types of rural landscapes.
Rubber is the primary raw material used to manufacture tires. In order to produce the tire's rubber, the raw rubber is mixed with carbon black, which is a fine powder created when natural gas is burned through an incomplete combustion process, resulting in a lot of soot. Sulfur and many other chemicals are also used in the production process, and the specific materials chosen vary depending on the tire's application, according to How Products are Made.