详细信息
1200mm bored pile progessive auger with casted kelly box for bauer-bg28 drill rig
1000mm progessive auger match bauer-bg24 drill rig for bored pile foundation work
1200mm drilling progessive auger match bauer-bg 36 rig for bored pile foundation work
1200mm rotary drilling progessive auger match bauer-bg25 rig for bored pile foundation
1500mm double cut progessive auger match bauer-bg26 rig for bored pile foundation work
Bored pile Progressive Auger
rotary drilling Progressive Auger
Main Applications
– Moderately strong to strong rock (50 – 100 MPa)
– is recommended in uncased bores or for
larger diameters
Features
– Kelly box 200 mm
– Pilot bit RP4 with round shank chisels
– Progressive cutting edge with round shank chisels
– Wear protection: hard facing or wear strips
Materis ：q355b
Kelly box:casted kelly box
|
no |
D |
Total lenght |
T1/T2 |
P1/P2 |
H1 |
d |
Kelly box |
weight |
|
1 |
600 |
2350 |
20/30 |
450/600 |
1500 |
Ø203*30 |
200 |
610 |
|
2 |
800 |
2350 |
20/30 |
500/600 |
1500 |
Ø219*30 |
200 |
700 |
|
3 |
1000 |
2350 |
30/30 |
500/600 |
1500 |
Ø219*30 |
200 |
820 |
|
4 |
1200 |
2350 |
30/30 |
500/600 |
1500 |
Ø219*30 |
200 |
1000 |
progressive augers are heavy-duty rotary drilling tools engineered to penetrate moderately strong to strong rock. Their "progressive" design utilizes a stepped cutting edge that gradually fragments hard materials, maximizing drilling efficiency in challenging ground conditions.
esign & Features
Progressive Cutting Edge: A stepped flight profile lined with round shank chisels allows the tool to cut into rock in distinct stages rather than all at once.
Pilot Bit: Typically equipped with a heavy-duty pilot bit (such as the RP4) to precisely center the auger and guide initial penetration.
Wear Protection: The flights are heavily reinforced with hard facing and wear strips to prolong the tool's lifespan in highly abrasive environments.
Double-Cut Options: Models feature a double-cut design, which provides better balance and is highly recommended for larger drilling diameters or when operating in uncased bores.
Rig Connection: They connect to the Kelly bar of rotary drilling rigs using standard couplings, commonly a 200 mm Kellybox.
Primary Applications
Hard Rock Excavation: Specifically rated for breaking through moderately strong to strong rock formations, typically handling compressive strengths between 50 and 100 MPa.
Deep Foundation Piling: Used extensively in Kelly drilling operations to create large-diameter bored piles for structural foundations.
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