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CME-55/300 Brochure	CME Product Catalog

Hydraulic rod holder and breakout wrench^†

The hydraulic rod holder makes your job quicker and safer. It 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. Systems available up to 6-5/8 inch (16.8 cm) capacity.

Automatic SPT hammer^†

Our 140 pound (63.5 kg) automatic hammer gives you extremely consistent and accurate Standard Penetration Test results, meeting all ASTM-D-1586 requirements. That’s because 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. Other hammer systems available including 170 pound (77 kg), 300 pound (136 kg), and 340 pound (154 kg).

Quick mast disconnect^†

This feature allows you to quickly disconnect the mast when working inside buildings, underneath bridges or in other low overhead drilling locations. Since the mast is completely separated from the upright, it doesn’t interfere with other drill functions such as the in-out slide base. With the mast in the horizontal position, you simply clamp it to its storage rack and extend the drills in-out slide base. This pulls the sockets on the upright drill frame away from the large tapered pins on the mast.

Angle drilling system for special applications^†

This unique system allows you to drill holes at various angles between horizontal and vertical. It is especially effective for drilling under 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. The angle drilling system will also allow you to drill vertically with the rig positioned on an uphill slope. That can eliminate the time consuming job of leveling the rig. Since the kelly drive is directly connected 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

• Utility air tools system
• Spindle adaptor
• Stabilized water swivel
• Fluted kelly and hydraulic chuck system
• Additional tool boxes, work table, pipe vise
• 10 foot (3 m) rod storage
• Probe hammer
• Water tank
• High torque rotary drive
  • 9,425 foot pounds (12,779 Nm)
• Auger and rod guides for angle drilling
• Mast (from base of frame to sheaves)
  • 22 foot (6.7 m)
• Cathead
• Hydraulic hoist
  • 1,800 pound (816 kg), max line speed 200 ft/min (61 m/min)
  • 3,200 pound (1,452 kg), max line speed 100 ft/min (30.5 m/min)

• 7,000 pound (3,175 kg)
  • Up max line speed 85 ft/min (26 m/min)
  • Down max line speed 340 ft/min (104 m/min)
• 8,500 pound (3,856 kg)
  • Up max line speed up: 72 ft/min (22 m/min)
  • Down max line speed down: 310 ft/min (95 m/min)

• 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)
  • Moyno 3L8 79 gpm/225 psi (299 lpm/1,551 kPa)
  • Bean L09 (425) 25 gpm/500 psi (95 lpm/3,447 kPa)
  • Bean L1122 (435) 40 gpm/500 psi (151 lpm/3,447 kPa)
  • Other pumps available

† Patented by Central Mine Equipment Company

55/300 Features  |  55 Specifications  |  55/300 Optional Equipment

Performance ratings are based on engineering specifications, calculations and accepted industry standards.
Capacities may vary according to drilling conditions. CME reserves the right to amend these specifications at any time, without notice.