220kN. M output torque S a n y Rotary Drilling Rig SR220C

S A N Y can supply with all kinds of standard drilling tools, including DBB-II, DBB-III, CB and so on. For
Special geological conditions, S A N Y can also provide special drilling tools accordingly to improve working efficiency. The latest special drilling tools developed by S A N Y are as follows:

Pilot drilling bucket
Integrate bailing bucket and barrel; The design of arc reinforcing plate, outside of reinforcing plate welded with transition bending plate; Hinge is made of high tension steel; Applicable layers: Cave, occlusal pile.

Core barrel with centralizer
Suitable for stage drilling of large diameter bore hole; The cutting teeth and roller bits are interchangeable;
Centralizer supports the hole wall to avoid drilling an inclined hole; Applicable layers: Medium or slightly decomposed bedrock, hard or superhard bedrock.

Underreaming bit
Adjustable reamer arms can meet the specific requirements of different bore hole diameters; After drilling operation, convey soil with bailing bucket or scouring bit; Reamer arms are easy to spread and retract; Box type structure is easy to service; Applicable layers: Hard stratum, frozen soil and medium soft rock.