CME-55 Skid Mounted Drill: Reliable Power for Special Applications

Special application skid rig
Special applications like near shore barge work and confined or remote sites call for special tools. Whether it be deep borings with hollow stem auger or even deeper exploration with diamond core tools, a CME-55 skid drill is the right tool for the job. A full complement of options are offered on skid drills including the CME automatic hammer system, several hoist lines, water pump systems and more.

Cummins diesel power
The CME-55 drill is powered by a Cummins QSF 3.8 turbo charged diesel engine meeting tier-4 final emissions. Cold weather starting aid and engine protection shutdown systems are standard equipment.

The feed system
The hydraulic feed and retract system provides 28,275 pounds (12,826 kg) of retract force and 18,650 pounds (8,460 kg) of down pressure. The 72 inch (183 cm) stroke, vertical drive system has twin hydraulic cylinders mounted in line with the drill spindle so that pulldown and retract forces are applied directly to the drilling tools. The split slide bushings for the feed cylinders are easily replaced after normal wear intervals, and the standard upright gives you the clearance to drill with up to 10 1/4 inch ID hollow augers.

The rotary box
Rugged mechanical standard rotary drive provides 7,780 foot pounds (10,548 Nm) of torque and rotary speeds of up to 800 rpm. Other rotation and torque combinations are available, including a high-torque rotary drive that gives you up to 9,425 foot pounds (12,778 Nm) of torque and rotary speeds of up to 665 rpm. The five speed transmission is connected to the drill engine through a heavy-duty 13 inch clutch. With five forward gears and one reverse, there is a rotation speed and torque combination for just about any situation. The mechanical drive system also gives you a better feel for drilling conditions down the hole. It allows you to sense the need for changes in feed pressure and rotational torque.

Control logic — the key to driller productivity
All drilling and set-up controls are logically arranged on the control panel located at the driller’s station. And the location of all primary controls is the same on all CME drill models so operators can move from one machine to another with confidence. The most commonly used functions, such as the feed, hydraulic hoist, and sliding base levers are staggered for easier identification and operation. Also a lock out position for the clutch lever to prevent accidental engagement.

Patented Spindle Brake stops rotation in an instant
Our emergency Spindle Brake can stop rotation in less than a revolution. The system is activated by two conveniently located push button switches as well as strategically located multi-directional wobble switches.

55 Specifications

Engine

Cummins QSF 3.8L (229 cubic inch) 120 horsepower (89 kilowatt) 4-cylinder turbocharged diesel engine with electronic throttle, engine protection shut down, and cold weather starting aid. Meets U.S. EPA tier-4 final emissions standards.

Rotary drive

• Clutch, heavy duty
  • 13 inch (33 cm)
• Transmission
  • 5 speed forward, 1 speed reverse
• Standard Rotary Box
  • 7,780 foot pounds (10,548 Nm) max spindle torque
  • 800 rpm max spindle speed
• High Torque Rotary Box
  • 9,425 foot pounds (12,778 Nm) max spindle torque
  • 665 rpm max spindle speed
• Hollow spindle
  • Standard: 2-3/4 inch I.D. (7 cm)
  • Optional: 3-3/4 inch I.D. (9.5 cm)

Hydraulic feed system

• Retract force
  • 28,275 pounds (12,826 kg)
• Pulldown force
  • 18,650 pounds (8,460 kg)
• Retract rate
  • 35 feet (10.6 m) per minute
• Rapid Retract rate
  • 90 feet (27.4 m) per minute
• Feed Rate
  • 55 feet (16.2 m) per minute
• Stroke
  • 72 inch (183 cm)

55 Optional Equipment

Automatic SPT hammer
The CME-140 pound (63.5 kg) automatic hammer gives you extremely consistent and accurate Standard Penetration Test results, meeting all ASTM-D-1586 requirements. There are no ropes or cables to impede the free fall of the weight. The hammer swings from stored position to on-hole position. Since raising and lowering is done hydraulically, set up is quick and almost effortless. For maximum safety, all moving parts are enclosed, including the impact area between the weight and the anvil.

Hydraulic rod holder and breakout wrench
The hydraulic rod holder and breakout system makes your job quicker and safer. The system not only pivots from on-hole to off-hole positions, but also hydraulically moves in and out. For efficient operation, the breakout wrench is mounted at the pivot point of the rod holder arm.

Slide bases make the job easier and quicker
Slide base options are available for both in-out and sideways movement of the drill on the steel skid frame.

Quick mast disconnect
This feature, along with the quick-cabling sheave options allow you to remove the mast when working inside buildings, underneath bridges or in other low overhead drilling locations.

Patented angle drilling system
This unique system is especially effective for drilling underneath ponds, storage tanks, or other structures. When used with our patented continuous sample tube system, you can even take soil samples while drilling angle holes. And, since the kelly drive is always coupled to the right angle drive box, you can raise and lower the mast with the drivetrain already connected and ready to go.

Cone Penetrometer Testing (CPT)
CPT controls allow you to easily switch from typical geotechnical drilling and sampling procedures to pushing a cone. A dedicated hydraulic circuit including detented CPT control lever, hydraulic down feed pressure and CPT feed rate controls provide precise pressure and penetration adjustments required to meet ASTM standards. A separate CPT system hydraulic pressure gauge is provided as well. Anchor points are installed below the drill feed frame so that maximum available pressure can be applied to the CPT tools. A 12-volt power source can be provided at the drill control panel to accommodate electronic devices associated with CPT procedures. Mounting for depth transducers or other related equipment can also be provided.

Additional optional equipment

• Spindle adaptor
• Fluted kelly and chuck systems
• Water swivel
• Mast (from base of frame to sheaves)
  • 20 foot (6.1 m)
  • 22 foot (6.7 m)
• Hydraulic cathead
• Hydraulic hoist
  • 1,800 pound (816 kg)
  • 3,200 pound (1,452 kg)
  • 7,000 pound (3,175 kg)
  • 8,500 pound (3,856 kg)
• Hydraulic wireline hoist
  • 1,800 pound (816 kg), max line speed 200 ft./min (61 m/min)
  • 900 pound (408 kg), max line speed 400 ft./min (122 m/min)
• Water pumps
  • Moyno 3L6 36 gpm/225 psi (136 lpm/1,551 kPa)
  • Bean L09 (420) 25 gpm/500 psi ( 95 lpm/3,448 kPa)
  • Bean L1122 (435) 40 gpm/500 psi (152 lpm/3,448 kPa)
  • Other pumps available