The SM-20 is a multipurpose hydraulic drilling rig. Its modular design is engineered for the execution of micropiles, tie-backs, anchors, jet-grouting, drains, water wells. The rig is fitted with a proportional hydraulic system that makes drilling operations smooth and precise, even in the most difficult operating conditions. The modular design of the SM-20: The stroke of the drilling rig can be varied from 7200 to 10200 mm (and vice versa) with a simple mast extension (or reduction) kit with hydraulic pipe rack. Various systems for the mechanical loading of the drilling rods are available with depths that range from 18 to 45 m for both vertical and inclined drilling of anchors or tie-backs. The particular kinematic mechanism with a 90° joint lets you drill anchors and tie-backs with the rotary drilling over the mast.
Units
Hoist & Feed System
Specification
US
Metric
Feed Stroke
283.5 in (7,200 mm)
401.6 in (10,200 mm)
Rod Length Type (c/w one rotary head)
19.7 ft (6 m)
29.5 ft (9 m)
Maximum Hoist Pull/Feed Force
18,659 lbf (83 kN)
18,659 lbf (83 kN)
Rotary Head Range
Specification
US
Metric
Gear Box Type
Variable
Variable
Maximum Torque
10,872 lbf*ft (1,474 daNm)
15,887 lbf*ft (2,154 daNm)
Maximum Drilling Speed
295 rpm
315 rpm
Inner Passage
3.5 in (90 mm)
5 in (127 mm)
Undercarriage
Specification
US
Metric
Operating Weight (approx.)
46,297 lb
21,000 kg
Undercarriage
Track Shoe Width
19.7 in
500 mm
Wheel Base (centre idler to centre sprocket)
67.1 in
1,705 mm
Overall Length
143 in
3,631 mm
Overall Width (not extendable crawler)
98.4 in
2,500 mm
Travelling Speed
1.24 mph
2 km/h
Max Climbing Capacity (Gradeability)
34% (19˚)
34% (19˚)
Average Ground Pressure
10.2 psi
0.07 MPa
Ground Stabilizers
n˚2 fixed with inclined arm on front + n˚2 fixed on rear
n˚2 fixed with inclined arm on front + n˚2 fixed on rear
