Numa offers one of the largest ranges of hammers and bits available in the drilling industry today. With a capability of drilling holes from 3-1/2" to 43" (89 - 1092 mm) in diameter, you can bet that Numa has a hammer and bit combination to meet your demanding needs.
HAMMERS & BITS
Numa offers the largest range of conventional down hole hammers and bits available in the drilling industry today. Unmatched in longevity and penetration rates, these performance driven Patriot®, Champion® and Challenger® hammer models are able to drill holes from 3-1/2" to 43" (89 - 1092 mm) in diameter.
With a dedicated field staff travelling to drill sites around the world, we are able to collect the critical information that is essential for engineering products to meet the demanding needs of today's drilling industry. Numa will continue to conduct research and development in order to improve DTH technology for the future.
HAMMERS & BITS
Numa has led the industry in innovative design of reverse circulation hammers and bits. These RC products have the unique ability to bring all cuttings up the center of the hammer and drill string to be safely collected at the surface, which is essential in today's environmentally conscious society.
Recently, we have engineered a new, breakthrough RC bit design that drastically improves hole cleaning and overall drilling speed. By deepening the channel ways and side exhausting, the new design is able to efficiently flush more air over the bit face resulting in a greater recovery and accurate down hole sample at the surface - all at a much faster drilling rate.
Currently, our RC hammer and bit line has the capability to drill holes from 4-3/4" to 36" (121 - 914 mm) in diameter, with more designs in the works. As with our conventional line, all RC products provide incredible performance and reliability in tough drilling applications around the world.
Drilling in unconsolidated ground conditions is one of the most difficult tasks in the drilling industry today. That's why Numa has spent so much time and energy devising under reaming drilling systems that will simultaneously case the drilled hole.
The Super Jaws® Under-Reaming Bit is a revolutionary new bit design with wings that extend out wider than the casing while in the drilling position. The extended wings provide a large bit face striking area for transferring blow energy to the formation - yielding faster penetration rates. When drilling is complete, the bit is pulled off bottom and the wings extract back into the bit to allow the hammer and bit to be pulled back up through the casing to the surface - no parts are left down the hole.
The Super Jaws® Under-Reaming Bit produces outstanding performance in hard rock as well as overburden formations. It is available for drilling hole sizes 5-7/8" to 48-9/16" (150 - 1245 mm) in diameter.
Numa's pneumatic lubricators are positive displacement, air-operated, lubrication systems. They are designed to inject rock drill oil into the air line under positive pressure to ensure the proper amount of oil is supplied to the DTH hammer while drilling.
Numa offers Lubricators with a 15 gallon (57 liter) reservoir for 12" hammers and smaller, or a 45 gallon (170 liter) reservoir for 18" hammers and larger. Both models offer a positive displacement pump that is capable of pumping up to 16 quarts (15.2 liters) per hour at 1,500 PSI (103 Bar). The required supply air pressure is a maximum of 85 PSI (6 Bar) while the supply to output pressure ratio is 17.6:1. The pumps are adjustable for stroke length and number of strokes per minute.
Contact your Numa regional sales representative if you need further information on how Numa Lubricators will make your DTH hammers last longer.
- 15 Gallon Lubricator - 263 lbs. (119 kg)
- 45 Gallon Lubricator - 537 lbs. (244 kg)
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Numa Lube is an environmentally safe alternative to rock drilling oil that has proven to be a major technological advancement in the quest for long lasting hammer protection. Unlike rock drill oils, Numa Lube is easy to use, non-toxic, environmentally safe and much more cost effective. Due to its superior, long lasting lubrication properties, only one 8 oz. (.24l) bottle is required in a 6" (152mm) hammer every 300 feet (91m) or six hours of drilling. Compare that to the three or four gallons (11-15 L) of rock drill oil that is required for the same depth. In addition, Numa Lube does not need to be continuously fed like rock drill oil. Simply pour the contents of one Numa Lube bottle down the drill string, continuously inject water while drilling and forget about lubrication for the next 300 feet (91m) or six hours. With Numa Lube, fewer applications equal greater savings for you, the driller.
Another lubrication product offered by Numa is Monitor Lube which provides the same outstanding results that Numa Lube does. The only difference with this lubricant is the elimination of a rust prohibitor found in Numa Lube that commonly dissipates during the drilling process but could leave trace amounts in the effluent. Although both lubricants are proven to be environmentally safe, some customers prefer to use Monitor Lube in extremely sensitive environmental conditions where stringent testing is to be completed while drilling.
Numa Lube and Monitor Lube come conveniently packaged in cases of twenty four, 8 oz. (.24l) bottles and require limited storage space.