Different industrial enterprises need to select the suitable roller conveyor model according to the materials to be transported, and the rollers of different materials and models should be determined according to the conveying load of the roller conveyor. There are many materials for making roller conveyor equipment today, but most manufacturers ignore the safety of the drum in production. Conventional PVC roller materials produce a lot of smoke when burned, and the smoke is irritating, and it also produces toxins harmful to the human body, and most PVC materials contain various harmful heavy metals such as lead and cadmium. It will cause serious harm to human health, even if it is burned or buried, it will cause pollution to soil and water. Because some toxic additives and plasticizers may ooze or vaporize during the processing of PVC film, some additives may interfere with biological endocrine, and some may increase the risk of cancer. Incineration of PVC waste can cause carcinogenic dioxins and pollute the atmosphere. At present, most conveyor rollers are made of hard chrome or stainless steel as a material to achieve corrosion resistance and wear resistance, and also have high polishing performance. Plasticizers that make PVC cylinders can cause chronic diseases such as scleroderma, cholangiocarcinoma, and brain cancer. Plasticized polyvinyl chloride in PVC drums, if plasticizer is not contained, there is no exudation of dioctyl phthalate, but in the process of making roller, usually stabilizer is added, most of the current It is a lead salt stabilizer. Lead is a toxic substance. It will also ooze out during use, which will endanger human health and therefore cannot be ignored. At present, there are already non-lead salt stabilizers in the process of making and processing PVC drums, but the cost of production is relatively high, so it has not been widely put into the market.