Numa is the world’s leading drilling technology provider, dedicated to ongoing product innovation and result-oriented consistency. We’ve built a strong legacy of high-quality, U.S.-made DTH hammers and bits for drilling holes 3-1/2 to 50-1/2 inches (89 to 1283 mm) in diameter. With over 100 DTH hammer and bit products serving 11 different industries, our products are capable of drilling vertical, horizontal, and reverse circulation holes in hard rock and unconsolidated formations.
SMALL HAMMERS AND BITS
Drills holes from 3-1/2″ to 10″ (89 to 254 mm)
Numa offers 18 different small diameter hammers for diverse drilling conditions. Built specifically for longevity and penetration rate, Numa’s Patriot® hammers and bits drill are high-frequency and require less air. Even against high heads of water.
MID-RANGE HAMMERS AND BITS
Drills holes 7-7/8” to 20” (200 to 508 mm)
Numa’s mid-range hammers and bits provide a combination of speed and life to excel against hard, abrasive and just plain nasty conditions. A simplified hammer design with less internal components promotes less vibration and smooth operation.
LARGE HAMMERS AND BITS
Drills holes 18” to 48” (457 to 1219 mm)
Numa pioneered the large-hammer industry and leads the market in performance and reliability. Our forward-thinking designs have proven themselves again and again in demanding applications around the world.
REVERSE CIRCULATION HAMMERS AND BITS
Drills holes 5-1/4” to 36” (133 to 914 mm)
Numa’s reverse circulation 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.
SUPER JAWS® OVERBURDEN BITS
Drills holes 5-1/2” to 42” (457 to 1066 mm)
Super Jaws provides superior performance for simultaneous drilling and casing in hard rock and overburden formations. Wings extend out to drill a full diameter hole then retract to bring all tooling to the surface. No expensive tools are left in the hole and no casing teeth are required.
IMPACT RING BIT SYSTEM®
Drills holes 5-1/4″ to 50-1/2″ (133 to 1283 mm)
Numa’s Impact Ring Bit System is the best method for simultaneous drilling and casing for horizontal applications in both overburden and hard rock conditions. The system consists of a DTH hammer, auger, and a unique two-piece center/ring bit combination. It delivers faster penetration rates due to large bit surface area contacting formation and saves money as all components are reusable on multiple projects.
DUAL FLUID SYSTEM® (DFS)
Drills holes 5-1/4″ to 36” (133 to 914 mm)
Numa’s Dual Fluid System is a DTH hammer for use in environmentally challenging or confined worksites where contamination or risks of damaging close-by piles or other infrastructure is present. The DFS uses a modified reverse circulation concept where water and/or bezonite are used for flushing the hole instead of pressurized air. The result for drillers is all the performance benefits of DTH air drilling, but without the drawbacks that air can introduce.
DTH HAMMER LUBRICATORS
Available in 5, 15, and 45 gallon models
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.
In drilling applications where petroleum distillates are not allowed to lubricate DTH hammers, Numa offers a nontoxic and biodegradable alternative. Numa Enviro Lube is best suited for use with 3-1/2” to 6” (89 to 152 mm) hammers in water well and environmental drilling applications.