Is there a future for me to buy my own excavator? How many years ago?

That depends on which area you are in. In recent years, excavators are almost saturated, but there is still room for profit. 700,000 to 800,000 big excavators are already very good. South Korea's Daewoo power is good, and the price is not bad, 55W300,000 and 220W700,000. My family is using it now, and it feels ok. However, excavators usually take two or three years to recover their investment. If it is a loan, it will cost six or seven thousand yuan to the bank every month, which is very tiring. Moreover, national policies are constantly changing and oil prices are rising. Unless you follow the construction unit, it is not safe.