HD90 HYDRAULIC CRAWLER DRILL
The HD90MKIV is a compact and sturdy drill rig. With the 114 HP engine, providing the powerful and efficient hydraulic system, coupled with the flexible movements, the drill rig is designed and built for different drilling systems and different drilling environments.
HD 90 Tech Specs
Engine Power: 114 hp
Width of Crawler: 7.3 ft
Stroke of Rotary Head: 13.45 ft
Extraction Force: 11,243 lbs/ft
Crowd Force: 5,952 lbs/ft
Clamps Diameter: 10.75 in
Rotary Head Torque: 7,865 lbs/ft
Max Rotary Head Speed: 65 rpm
Micropiles, also know as minipiles, pin piles, needle piles, or root piles, are small diameter drilled piles. They offer a viable alternative to conventional piling techniques, particularly in the following conditions:
restricted access
low headroom
challenging subsurface conditions
environments sensitive to noise or vibration
Micropiles originated in Italy after the second World War to repair damaged structures, and the U.S. construction industry widely accepted them in the late 1980's. Micropiles are a unique foundation element because of the ability to install them in very limited access conditions and through a wide range of subsurface conditions.