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Differences Among Rubber Idler Rollers
2026-08-11 00:00
| Item | Process Characteristics | Key Process Steps |
| Cast-rubber idler roller | This is a hot-vulcanization process in which high temperature and high pressure fuse the rubber with the surface of the idler roller into one unit. | Preheating the idler roller → injecting liquid rubber → vulcanization and curing at high temperature (120-160℃) and high pressure (1.5-5MPa) → cooling and finishing |
| Vulcanized idler roller | In a broad sense, this refers to an idler roller treated through a vulcanization process (hot or cold vulcanization), and may specifically refer to a hot-vulcanized idler roller. | If it is hot-vulcanized, the process is similar to that of a cast-rubber idler roller; if it is cold-vulcanized, it refers to bonding a rubber sheet using a cold-vulcanizing adhesive at room temperature. |
| Rubber-covered idler roller | This generally refers to the process of covering the surface of an idler roller with a rubber layer, encompassing various vulcanization methods such as cold rubber covering and hot cast rubber. | It can be divided into cold rubber covering (bonding a pre-vulcanized rubber sheet at room temperature) and hot cast rubber (vulcanization under high temperature and high pressure), depending on the type of vulcanization used. |
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