How big is the excavator to hit the concrete?

A bucket of concrete for 60 excavators is about 0.2 cubic meters.

Type 60 excavator is a 6-ton bucket with a capacity of about 0.3 cubic meters. However, concrete can only be leveled, unlike earthwork, so a barrel of concrete for 60 excavators is about 0.2 cubic meters.

Content extension: The bucket with model 120, i.e. 12 tons, has a capacity of about 0.5 cubic meters. The bucket with model 160, i.e. 16 tons, has a capacity of about 0.65 cubic meters. Model 200, that is, the capacity of a 20-ton barrel is about 0.8 cubic meters. Model 220 is a 22-ton bucket with a capacity of about 1. 1 m3.