BG 28 H

 

 

Overview

The BG 28 rotary drilling rig is ideally suited for:

  • Drilling cased boreholes (installation of casing by rotary drive or optionally by hydraulic oscillator – both are powered by the drilling rig)
  • Drilling uncased deep boreholes that are stabilized by drilling fluids
  • Drilling boreholes with long hollow stem augers (CFA system), with or without kelly extensions
  • Special drilling systems, such as FOW piles, displacement piles, single mixing walls, and cutter soil mixing

 

Specifications

BG 28 H Specifications

 

Rotarty Drive KDK 275 K Metric   Standard  
Torque 270 kNm 199,152 lbs-ft
Max Speed of Rotation 31 rpm 31 rpm
Crowd System     
Chain Driven Crowd     
Crowd Force Push 330 kN 74,187 lbf
Crowd Force Pull 330 kN 74,187 lbf
Stroke (kelly bar system) 10000 mm 33 ft
Max. Stroke of Sledge 18410 mm 60.8 ft
Main Winch     
Line Pull (1st Layer) Effective 250 kN 56,202 lbf
Line Pull (1st Layer) Nominal 317 kN 71,264 lbf
Rope Diameter 32 mm 1.26 inch
Rope Length 75 m 246.1 ft
Max. Line Speed 80 m/min 262.5 ft/min
Auxiliary Winch     
Line Pull (1st Layer) Effective 80 kN 17,985 lbf
Line Pull (1st Layer) Nominal 100 kN 22,481 lbf
Rope Diameter 20 mm 0.79 inch
Rope Length 60 m 196.9 ft
Max. Line Speed 55 m/min 180.5 ft/min
Max. Pile Diameter 1900 mm 6.3 ft
Drilling Depth Standard 31 m 101.7 ft
Drilling Depth Max. 71 m 233 ft
Base Carrier     BS 80 
Engine     CAT C 15 
Rate Output ISO 3046-1 354 kW@1800 475 hp@1800
Hydraulic Power Output 265 kW 355 hp
Hydraulic Pressure 320 bar 4,641 psi
Operating Weight 96 t 211,680 lbs
Overall Height 25.4 m 83.3 ft

 

Downloads

 

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