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Home > Procucts > SD-Series Rotary Drill > SD20A
Key Features Parameter Example

SD20A Hydraulic Rotary Drilling Rig, its main
performance reaches advanced level of its same
kind in the world. Its key parts use world famous
products. It can be flexibly operated and has high
efficiency, widely used in the construction of tall
building, bridge and water conservancy.

Type SD20A
Drilling tower  
Height of tower (mm) 21500 
Weight of base machine(without drilling tools)(kg) 55000 
Crowd cylinder  
Cylinder stroke (mm)  5700
Cylinder pressure force (kN)  200
Cylinder pulling force (kN)  200
Main winch  
Single line pull (kN)  1800
Rope diameter (mm) 26 
Line speed max. (m/min)  60
Auxiliary winch  
Single line pull (kN)  75
Rope diameter (mm)  18
Line speed max. (m/min)  45
Drilling parameter  
L1  20500
L2  8450
L3  2850
Drilling diameter(mm)  
uncased 1800 
cased 1500
Length of case(m)  
W/O oscillator  H-0.6
With oscillator H-1.8


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