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Buma Engineering Co., Ltd.
 
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Buma Engineering Co., Ltd.
[Korea]
Address:
505 Deokam-ri, Juchon-myeon Gimhae-si Gyeongsangnam-do 621843 Korea
Phone:
82-55-3379891
Contact name:
Sangtae Lee , Director
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Buma Engineering Co., Ltd.
 
Large Bore Pile Equipment

Reverse circulation drilling M/C
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Reverse circulation drilling M/C
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REVERSE CIRCULATION DRILLING M / C

RCD is essential for the foundation drilling of large diameter (1000 to 4000 mm) cast in-place piles.


1. PRODUCT FEATURES

  • The drilling speed is maximized by controlling hydraulic oil pressure.
  • Low vibration and low noise are a great advantage for construction in the urban area.
  • By replacing a few parts, a 1,000 to 2,500mm diameter hole can be drilled.
  • Adding special bit increases durability.

2. SPECIFICATIONS

DESCRIPTION UNIT SPECIFICATION FOR EACH MODEL
BM-R1212 BM-R1815 BM-R1820 BM-R2225 BM-R2230 BM-R3430 BM-R3735 BM-R3740
Drilling Rig
Max. drilling diameter m 1.2 1.5 2.0 2.5 2.5 / 3.0 3.0 3.0 / 3.5 4.0
Power Swivel -
Max. torque kN.m 120 180 180 220 220 340 370 370
Max. drilling speed rpm 45 28 28 28 28 28 27 25
Cont. drilling speed rpm 12 8 9 9 10 14 13 19
Pull Down Force -
Max. thrust force ton 58 58 88 102 102 / 123 123 123 / 140 140
Max. pull-up force ton 99 99 129 163 163 / 201 201 201 / 250 250
Cross-over sub flange NW 200 200 200 300 300 300 / 330 300 / 330 300 / 330
Mast tilting angle degree 26 26 26 30 30 / 43 43 46 48
Platform tilting angle degree 20 20 20 16 16 / 12.5 12.5 - -
Weight of drilling rig ton 24 26 29 32 32 / 34 34 34 / 37 40
Hydraulic Power Pack
Engine hp / kW 245 / 183 245 / 183 245 / 183 325 / 242 325 / 242 400 / 298 525 / 394 325 / 242 x 2
Pump displacement cc 112 x 2 112 x 2 140 x 2 140 x 2 180 x 2 280 x 2 280 x 2 180 x 4
Hydraulic oil tank liter 800 800 1200 1200 1200 1200 1200 1400
Weight of power pack ton 6 6.5 6.5 7.5 7.5 8.0 8.0 9.5
Drill String
Drill rod pipe -
Inner diameter(NW) mm 200 200 200 300 300 300 300 300
Flange diameter mm 370 370 370 530 530 530 530 530
Max. length per joint m 3 3 3 3 3 3 3 3
Stabilizer -
Flange diameter mm 700 700 700 1000 1000 1000 1200 1200
Guide diameter mm 1030 1330 1830 2330 2330 / 2830 2830 3330 3830
Weight of drill string ton 13 14 15 28 28 / 32 32 36 40
Drill Bit
Outer diameter mm 1050 1350 1850 2350 2350 / 2850 2850 3350 3850
Weight of drill bit ton 2.9 3.5 5.5 8 8 / 11 11 14 20
Air Compressure
Volume cbm / mm 10-15 10-15 10-15 22-25 22-25 22-25 22-25 22-25
pressure bar 7-15 7-15 7-15 10-15 10-15 10-15 10-15 10-15
Water Filling Pump
Volume cbm / mm 5-8 5-8 5-8 8-12 8-12 8-12 8-15 8-15
Head m 20 20 20 30 30 30 30 30

3. TECHNOLOGY & CERTIFICATIONS

  • Registration for Loaned List with Foreign Currency Indication (notified by the Ministry of Trade)
  • Registration of the patent for SEALING APPARATUS for RCD M / C (NO.0311622, Sep.26,2001)

Related Keywords: large bore pile equipment , equipment , diaphragm wall equipment , shield back fill plant


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