Cat excavator as a globally renowned brand of engineering machinery with a wide variety of product lines to meet different construction needs.Among them, Cat's smallest number is a 301.5 mini-digger.This excavator, with its compact size, flexible operation and excellence, can demonstrate excellence in small-scale engineering operations.Cat 301.5 Mini-Excavator, which, despite its small size, has strong excavation power and efficient operational efficiency, is the ideal option for narrow space operations within cities.To gain insight into the characteristics of the Cat Excavator 301.5, we can see that it is well designed, easy to maintain, and that fuel is highly economical, taking into account environmental protection and durability.For users seeking value for money and efficiency, Cat 301.5 excavators are undoubtedly the preferred equipment under minor working conditions.In the light of the above, the answer to the question of what's the smallest size of the Cat excavator is clearly to the 301.5-type excavator produced by Caterpillar, which, with its practicality, flexibility and economy, stands out among the many small excavator models.