Rotary Piling Rig is a common China Foundation Machinery suitable for the daily construction project. It is precisely because of its wide application, there will be more places that may have problems. Most of the main reasons for the sticking are:
1.The rotary speed of the drilling bucket will drive the mud, then scour the hole wall in the drilling rig, or use the rotary piling rig to drill deep once. The gravel in the drill bucket will leak from the drain to the hole wall and cause the sticking.
2.The probe stone on the wall of the hole leads to the drill.
3.The wear degree of drill teeth.
4.Holes are inclined.
6.Sticking caused by shrinkage.