AD-II
When you look in the dictionary under the word "value", you may very well see a picture of the AD-II. Originally rolled out of our plant in 1969, the AD-II is still a very popular choice of contractors worldwide as a rugged, mechanical rotary drill.
What separates the AD-II?
Time-tested for 50 years.
High-torque for augering and high RPM for coring.
Various options and configurations.
High-torque for augering and high RPM for coring.
High-torque for augering and high RPM for coring.
High-torque for augering and high RPM for coring.
High-torque for augering and high RPM for coring.
Standard Equipment
Power Unit –
(5) cylinder, 97 HP @ 2,300 RPM with 12-volt electric start.
Drill Head -
2-15/16" [74.6 mm] spindle bore, accepts all rod and casing sizes up to "N" wireline. Eight speeds in forward and two in reverse. Mechanical drive bevel gears. Torque up to 7,000 ft. lbs. [9,490 Nm].
Lo-Range (Spindle Speeds @ 1,800 Engine RPM) -
1st Gear (0-63 RPM)
2nd Gear (0-130 RPM)
3rd Gear (0-238 RPM)
4th Gear (0-403 RPM)
Hi-Range (Spindle Speeds @ 1,800 Engine RPM) -
1st Gear (0-98 RPM)
2nd Gear ( 0-201 RPM)
3rd Gear (0-368 RPM)
4th Gear (0-623 RPM)
Lo-Range (Spindle Speeds @ 2,800 Engine RPM) -
1st Gear (0-98 RPM)
2nd Gear (0-203 RPM)
3rd Gear (0-371 RPM)
4th Gear (0-627 RPM)
Hi-Range (Spindle Speeds @ 2,800 Engine RPM) -
1st Gear (0-151 RPM)
2nd Gear (0-314 RPM)
3rd Gear (0-574 RPM)
4th Gear (0-969 RPM)
Transmission –
4-speed transmission with two speed auxiliary transfer box, providing eight speeds forward and two speeds in reverse.
Mast -
Hydraulic folding Mast for 20 ft. [6.09 m] rod pulls complete with sheaves for manila rope and hoisting cable. Mast disconnect permits mast-down and allows for low head room drilling operations.
Drill Frame -
Welded structural steel, supports the mast, control panel, winches and Cathead.
Dual Action Slide Base –
Provides both side-to side "wiggle-tail" (Optional) and in-and-out movement (Standard) of the drill unit assembly for precise positioning over the hole.
Auger Guide -
Prevents "kick out" when starting new holes. Available in multiple sizes to match preferred auger size. Customer to specify.
Control Panel -
All controls and gauges are grouped together in a convenient panel located at the left rear of the machine and facing the rear.
Hydraulic Leveling Jacks –
Two (2) front and (2) rear mounted jacks with 36" [91 cm] stroke and lock check valves.
Optional Equipment
Main Drum Hoist -
10,000 lb. [4,535 kg] planetary type with rapid reverse and automatic brake. Equipped with ft. [27.4 m] of 1/2" [12.7 mm] cable.
Wireline Hoist -
Hydraulically powered, used for wireline core drilling. 1,500 ft. [457 m] of 1/8" [3.3 mm] wireline cable. Lifting capacity is 800 pounds [362 kg].
Auxiliary Winch -
2,500 lb. [1,334 kg] capacity. Equipped with 75 ft. [22.86 m] of 5/16" [8.1 mm] cable.
Cathead Cargo Type Hoist -
Hydraulically powered cargo type hoist.
Water Pump –
Progressive cavity Moyno 3L6 mud pump. Hydraulically driven. Capacity is 27 GPM at 225 psi.
Water Pump –
Progressive cavity Moyno 3L8 mud pump. Hydraulically driven. Capacity is 50 GPM at 225 psi.
Water Pump –
Triplex piston pump for high-pressure operations. Flow capacity 22.6 GPM @ 425 psi.
Water Pump –
Triplex piston pump for high-pressure operations. Flow capacity 30 GPM @ 425 psi.
140 lb. [63.5 kg] Automatic SPT Hammer -
Hydraulically driven mechanism conforms to ASTM SPT.
Ackermatic Hydraulic Chuck Assembly -
"H" Chuck handles all rods/casings up to 3-1/2" [88.9 mm] OD. Jaws must be changed for each rod or casing size.
Hydraulic Rod Clamp
Break-Out Wrench
Drill Platform -
Welded steel construction with safety decking, two under deck lateral storage compartments providing drill rod and core barrel storage.
Auger Storage -
Under slung horizontal type provides storage.
Tool Box -
Large under slung double size compartment with two lockable doors for miscellaneous storage.
Drill Operator’s Stand –
Attaches to drill platform. Has non-skid step for operator's safety. Folds up for traveling.
Water Tank -
All steel welded construction with drain valve, baffles and filler cap. 250 gallon [946 L] capacity. Mounts on drill platform.