This category of machines has different capacities and different technologies.  The fleet includes Cat D6, D7, D8 and Shantui SD160, SD220 and SD320. Those machines are supplied by some of the best companies in construction equipment business.  The fleet size of each group depends on country and need and varies by size and model.

• CATD6 Models: Operating weight of 23,130KG, Engine rated Operating weight of 17900Kg and bucket capacity of 4.5 cubic meters
• CATD7 Models: Operating weight of 23,400KG, engine rated power of 162KW and bucket capacity of 4.8 meters
• CATD8 Models: Operating weight of 43,450KG, engine rated power of 312HP and bucket capacity of 9.5 cubic meters
• SD220 Models: Operating weight of 24,000Kg, engine rated power of 172KW and bucket capacity of 6.4cubic meters
• SD320 Models: Operating weight of 36,000Kg, engine rated output of 312HP and bucket capacity of 9.96 cubic meters