The rollers on the excavator, especially the upper rollers, play an important role in the operation of the excavator. They are usually used in conjunction with the crawler to ensure that the excavator can work stably and efficiently in various terrain conditions.
One of the main functions of the upper roller is to prevent the crawler from sagging and ensure that the crawler maintains proper tension during the excavator’s travel. This helps reduce crawler wear and increase the service life of the excavator. At the same time, the upper roller also plays a role in supporting and guiding the crawler to ensure that the excavator remains stable during travel and prevents deviation from the route or side slipping.
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