Central Mine Equipment Company
The new CME-55LCX has a unique feed and retract system and a quick disconnect mast that allows it to work under overhead restrictions. The overall working height with the mast disconnected is less than 12 feet when mounted on the CME-300 tracked carrier.
This compact rig provides all the power and productivity of the standard CME-55: 28,275 pounds of retract force and 18,650 pounds of pull-down force. This high-torque machine features a new 130-horsepower diesel engine and can crank out up to 12,100 foot-pounds of rotary torque. Low-clearance sheaves allow efficient use of hoists on low-clearance jobs.
The GEFCO has three sizes of drilling rigs for a variety of jobs. StrataStar-SS 5 is the smallest hydrostatic powered line of environmental and geotechnical drilling rigs in GEFCO’s StrataStar series. Small in size yet strong in performance, it has 5,000 ft./lbs. of torque and allows 72 inches of travel. The tier 4 compliant power unit tilts to allow operation at up to 45 degrees of incline.
The StrataStar 5 is available with all popular options and can be mounted on a truck or rubber tracks.
The company’s StrataStar-SS 15 is the ideal rig for sampling, drilling and soil surveys. It is hydraulically driven and compact.
For more information visit www.gefco.com or call Chip Nelson, 405-880-3647
According to Marl Technologies, the standard penetration test (SPT) is the most widely used test in geotechnical drilling; however, it may be the most widely mistrusted test by the geotechnical engineers who use it to determine the engineering properties of soil.
Marl’s eSPT system looks to help geotechnical engineers and project owners reliably and accurately acquire in-situ SPT data that, for the first time, reliably and verifiably conform to industry standards.
Test results are uploaded upon completion of each test for online viewing, giving project managers faster and more complete project situation awareness and aiding the real-time management of drilling programs. Compliance with industry standards is easily verified during and after each test. The system completes the test automatically, incorporating all aspects of the standard into the system logic.
Field data is delivered in real time to the project engineer’s desktop or mobile device where results are stored and easily accessed for future examination.
Rockmore International recently introduced its vector rod system, a new line of drill tools designed to improve the performance and service life of extension drill tools in surface and underground percussive drilling applications.
The new XT thread design incorporates guided cylindrical contact zones between male and female thread joints. These guided surface features are located in the nose and rear of the thread connections and provide various benefits and improvements over traditional threads, the company says.
The thread profile is based on the traditional trapezoidal “T” design and is therefore compatible with industry standard thread types such as T38, T45 and T51.
In order to achieve the full, engineered benefits of the XT thread, however, users must consider the drill string as a system of connections between the shank adapter, the rods and the bit in extension drilling applications.
Because the XT thread guide feature improves thread alignment, the impact duration when “rattling” rods, as required in uncoupling connections, is minimized, leading to less wasted energy transmission, cooler couplings on rods and longer rod life.
Simor Industrial Solutions/Massenza
Simor Industrial Solutions/Massenza has a new, powerful but compact MI3 drilling rig for small water wells, geothermal applications, soil investigations, coring and micropiles.
The MI3 has a 69-horsepower engine, pull-back options of 6,800, 7,900 or 8,800 lbf, torque of up to 5,800 lbf ft (maximum speed 712 rpm).
Because the rig’s weight has been reduced to 2,700 kilograms, it may be towed on a small trailer.
The rig is designed for working safely using various drilling methods: direct circulation, down-the-hole hammer drilling and augering. Its remote radio control feature allows the operator to view drilling movements remotely from an ideal working position.
Work methods include rotation with direct circulation; nucleus destruction with bleeding by water, mud and foam; rotation with down-the-hole hammer; coring; and percussion drilling.
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