My recommendation is not to buy excavators from this seller. every excavator has some problem, if you are not serviced it will cost you dearly to keep the excavator in operation.
you will have to fix a new excavator like me.
find another seller.
I ordered this model: JKW-12. I have been using it for 3 months. It works without problems. This machine can handle everything rocks, roots, dirt. I am also satisfied with the communication with the supplier. Even after 2 months, they still give me advice with any question. I can only recommend it to other customers