Wajax Equipment
J251-LS
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Engine Cummins QSB5.9
Height 9'11" (ft/in)
Overall Width 8'6" (ft/in)
Length - Chassis 21'3" (ft/in)
Length - Overall 43' (ft)
Weight (complete) 50,000 (lbs)
Wheel Base 136" (in)
Articulation 80°
Axle Oscillation 10°
Gradeability 40%
Maximum Speed 5 (mph)
Fuel Tank 80 (gal)
Water Tank 200 (gal)
Hydraulic Tank 45 (gal)
Single boom jumbo is designed specifically for limestone mines and efficient drilling of headings as large as 50 ft. wide and 35 ft. high in one set up.
Self contained, diesel hydraulic jumbo drill, provides the flexibility required to handle face, bench and roof bolt drilling requirements. J-251-LS carries all fuel and pelletizing water necessary to operate a full 10 hour shift without service.
Four ram type stabilizers (two each front and rear) lift the complete machine 1 ft. off ground. Optional stabilizers lift machine 3.5 ft. Front stabilizers extend out to a 14 ft. wide stance for the improved stability required for full width hole locations.
Tram drive is provided by an engine driven closed loop hydrostatic system driving through a two-speed drop box and drive shafts to both axles. A single joystick controls tram speed, direction and steering.
Optional exclusive 'articulated" operator cab tilts and swings providing unparalleled comfort and visibility for hard to see rib and roof holes. Cab includes a standard air conditioner/heater with filtered pressurizer and designed to achieve an 80 dba noise level.
All operator controls for drilling and tramming are either pilot operated of 24vdc solenoid controlled, minimizing the noise and heat generated in the cab. All controls are conveniently located for comfortable operation from the standard 'captains" style seat.
All hydraulic, infinitely variable, rock responsive drill hydraulic system allows the machine to be matched to your drilling requirements. All drill system valves are leak free replaceable cartridges in manifolds and are in readily accessible cabinets.
Flushing air is provided by an onboard hydraulic driven screw air compressor with high pressure output for better hole cleaning and more efficient drilling. A horizontal 200 gallon water tank carries the water required for pelletizing.
Engine compartment covers are hinged and are easily opened for improved maintenance access. An optional enclosed engine compartment with hinged doors reduces noise levels.
Engine radiator and hydraulic/air compressor coolers are remote mounted at the back of the machine and swing open for complete access for cleaning.
Complete machine design and component location to maximize serviceability.
