There are various machines, ensure the use of steel track for movement. Such a machine was traditional excavators. The excavator makes getting the use of steel chains on uneven terrain with to facilitate. However, there is a significant disadvantage of using steel chains. If the excavator moves on the steel track tend asphalt and other hard surfaces, damaging the surface. In addition, the steel chains are heavy, which increases the weight of the entire machine. This leads to higher fuel consumption.