Description

RATED CAPACITY : Nominal hole size 6” – 9” (**2 - **9 mm) by DTH method.
Total depth capacity: **5’ with *0’ long 5 ½” OD drill pipe
STANDARD MOUNTING : CAT USA make Under Carriage model **5L,
*0” Triple grouser track *5’ 3” long with 9 bottom rollers and
2 carrier rollers each side. Independent hydraulic motor with
Planetary gearbox drive for each track. Propel speed is 2.0 MPH on plains and 1.0
MPH on grades. Gradeability up to *5% grades.
PULLDOWN AND HOIST : Pull down is achieved through twin hydraulic cylinders and roller chain
arrangement.
*5’ head travel for handling *0’ long drill pipe
Pull down capacity : *0,**0 LBS.
Hoisting capacity : *8,**0 LBS.
Standard feed rate : *8 FPM
Standard hoist rate : *0 FPM
Fast feed rate : **0 FPM
Fast hoist rate : **0 FPM
MAST : Electrically welded square and rectangular steel mast of robust construction to
With stand adverse drilling conditions. Mast is raised and lowered by two
hydraulic cylinders with safety check valves.
Working height of mast *0’ for *0’ long drill pipe.
ROTARY HEAD : Axial piston hydraulic motor driven top head drive through
spur gear reduction with a constant torque of
*5,**0 Inch-pounds at ****0 RPM infinitely variable speed
AIR COMPRESSOR : Screw compressor with a capacity of ***0 CFM at **0 PSI.
Air oil receiver, Oil cooler, Oil filters and safety valves
are provided as standard.
PRIME MOVER : CAT, USA make engine C*8 (TT) *@********************pressor