Heavy duty bearing cushion idlers are the cardiovascular system of belt conveyors. The excellent airtightness of the carrier roller bearing seat requires strict quality management of the components, ensuring the functionality and airtightness of the components, and ensuring that the carrier roller bearing seat has excellent airtightness characteristics. In addition, the actual sealing effect is improved by increasing the gap and length of the puzzle palace, which can extend the service life of the buffer idler. Roller bearing pedestals are commonly used in outdoor natural environments with high smoke and dust content and high corrosion, such as mining, power plants, steelmaking plants, stone plants, chemical plants, and all transportation sites such as coking, coal preparation plants, salt plants, alkali plants, fertilizer plants, and ports.

Depending on the business scale and size of different companies, it must be different from the total number of buffer idlers applied. It must be clear according to its specific situation, taking into account the requirements of manufacturing and production processing. Because the natural environment where most belt conveyors work is heavily polluted by smoke and dust, and has corrosion, especially in the case of some hard particles that cause unusual damage to the buffer idler tube. Although a lot of money has been invested in the maintenance of buffer idlers, the demand for roller bearing pedestals is wide and often ineffective at the initial stage, resulting in a squeaking sound until it is completely damaged due to jamming, leaving people helpless. Common failures such as shutdown seriously affect all normal operations of the accumulation type transportation production line. Moreover, the significant improvement in labor efficiency also poses a serious threat to the physical and mental health of people who often work in high smoke and dust natural environments.

Traditionally, the service life of traditional cushion idlers in extreme natural environments has been limited to only a few dozen hours. The initial ineffectiveness of the buffer idlers leads to frequent belt conveyor failures, tearing of adhesive tape, and even safety accidents that cause personal safety deaths and injuries. In order to improve the service life of the cushion roller, and develop independent new products for the polyester cushion roller. After 8 years of continuous experiments, the difficulty of poor sealing performance of polyester buffer idlers when applied in extreme natural environments has been completely eliminated. Its simulation and enhanced experimental conversion period has exceeded 100000 hours, and its comprehensive technical parameters have exceeded the very ideal practical effect. Not only has independent innovation been brought to the polyester buffer idler, but also significant improvements have been made in the processing technology of the conveyor belt.