The wheeled type is used for road construction and pipeline digging in cities, and the crawler type is used for suburban operations or construction sites.
Crawler type: Advantages: Because of the large grounding area, it is better in places where it is easy to sink in, such as mud and wetlands. Because the excavator itself has a large weight, this allows the excavator to go to a wider range of places. In addition, because the crawler tracks are metal The product can be used in mines or places with harsh working conditions, has strong off-road capabilities, low production cost and small investment.
Disadvantages: In addition, mobility is not good, the maximum design speed is only 5-7KM/H, and long-distance movement relies on trolleys.
Wheel type: Advantages: small investment, fast movement speed, general speed can reach 40-50KM/H
Disadvantages: narrow scope of use, mostly in road administration or urban projects, cannot enter mines or muddy areas, poor climbing ability, high production costs, and large investment
Therefore, most excavators now are mainly crawler-type.
