Products - Reverse Circulation Drilling Rig
Special Features
BR series is a kind of foundation construction hydraulic equipment with a inclined rotary head driving drilling tools especially good large diameter construction. It features small size, light weight, easy movable, easy for platform construction, etc. The main body of the machine adopts the dismountable and compact structure easy for transportation, repair and maintenance. BR series is mainly applied for the large diameter grouting pile construction of railways, roads, ports, high buildings and crossing sea bridges at Max 200MPa
Model BR25 BR30 BR35 BR40
Hole diameter(mm) 2.5 3.0 3.5 4.0
Hole depth(m) 150 150 150 150
Angle of the guide frame(°) 120 150 160 200
Angle of the rotary head(°) 30 30 30 30
Jib crane(T) 45 45 45 45
Lifting force(kN) 1.2 1.5 1.5 1.5
Speed of rotary head(rpm) 4-20 4-20 4-20 4-16
Torque of rotary head(kN·m) 6 10 12 15
Stroke of rotary head(mm) 3.6 3.6 3.6 4.15
Rod diameter(mm) 351×20 377×22 377×24 377×28
Input power(kW) 165 230 255 330
Dimension(mm) 4.0×3.8×7 4.0×4.1×7.3 4.8×4.5×7.3 5.4×5.1×7.3
Weight(Kg) 25 35 37 43
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