Brand New Rotary Drilling Rig Sr280
Product Description
We can supply with all kinds of standard drilling tools, including DBB-II, DBB-III, CB and so on. For
Special geological conditions,we can also provide special drilling tools accordingly to improve working efficiency. The latest special drilling tools developed 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.
Technical Parameters
| Model |
SR280R |
| Pile |
Max.pile diameter |
2500mm |
| Max.pile depth |
84/56m |
| |
| Rotary Drive |
Max.output torque |
280kN.m |
| Speed of rotation |
6.9-23rpm |
| |
| Crowd System |
Crowd force |
210kN |
| Stroke |
6000mm |
| |
| Main Winch |
Line pull |
300kN |
| Rope diameter |
36mm |
| Max.line speed |
65m/min |
| |
| Auxiliary Winch |
Line pull |
90kN |
| Rope diameter |
24mm |
| Max.line speed |
70m/min |
| |
| Mast Inclination |
Forward/Backward |
5° |
| Lateral |
±6° |
| |
| Main Chassis |
Engine power |
261/1800 kw/rpm |
| Engine displacement |
8.8/537in3 |
| Chassis length |
7715m |
| Extended width |
4300mm |
| Track shoe width |
800mm |
| Swing radius |
5060/4780mm |
| |
| Overall Machine |
Overall height |
22300mm |
| Operating weight |
78t |
| Transport width |
3000mm |
| Transport height |
3600mm |
Product Pictures
Company Information
Audited Supplier 
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