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.
| |
Item |
Unit |
ZYJ-400/270 |
| Host of drill rig |
Work Pressure |
Mpa |
12 |
| Rated Troque |
N.M |
>400 |
| Rated Speed |
R/min |
>270 |
| Rated Flow |
L/Min |
70 |
| Driving Power |
KN |
30 |
| Angle of drill hole |
Dgree |
0-360°±90° |
| Drive Stoke |
mm |
1080 |
| Depth of drill hole |
m |
220 |
| Speed of drilling |
mm/min |
400 |
| Hardness of Rock |
f |
10 |
| Length of Guide Rail |
mm |
1800 |
| Drill Rod |
mm |
42/50/69/79/89/94 |
| Max Height |
mm |
4500 |
| Min Height |
mm |
1500 |
| Water Flushing Pressure |
Mpa |
1.2-2.0 |
Audited Supplier 
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