The main difference between Auger Drive 8000N for 4.5-8t Excavator YA8000 and Auger Drive 5000N for 3-4.5t Excavator YA5000 is that YA8000 Auger Drive used a more powerful auger drive and suitable for larger carrier. The output torque is up to 8000Nm. Drilling diameter range of YA8000 auger is just same as YA5000, but its drilling depth are much increased by a larger power.