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News & Articles

Overburden drilling system HYPERBIT

Overburden Casing System HYPERBIT introduced by OCMA DrillTech for world market.

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Micro piles Construction

MicroPiles with Casing System MEGABIT 143SU for bridge Construction in UK.

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Megabit Casing System
OCMA DrillTech introduce the new Concentric Casing System MEGABIT.
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Forepoling Tube Umbrella

Forepoling Drilling System - Tube Umbrella Drilling - will be show during the exhibition GEOFLUID 2014 in Piacenza - ITALY.

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DTH Bit with 8000 meters

OCMA DrillTech DTH BIT reached the Record of 8000 meters drilled in quarry.

 

 

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Test New DTH Hammer
OCMA DrillTech is designing the new series of DTH hammers.
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DTH Bits
DOWN THE HOLE BITS SPECIFICATIONS - DTH BITS
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 CONCAVE FACE DESIGN CONVEX FACE DESIGN
Concave Face design 
For medium soft to medium hard rock conditions in consolidated ground conditions in medium abrasivity rock. Front face grooves provide excellent cuttings removal and the concave center provides optimal hole straightness. The concave design is the most common bit shape. 
Convex Face design 
For medium sotf to medium hard rock in good ground conditions where maximum penetration rate is desired. The convex design will handle abrasive formations better than a concave or flat design. The convex design also enables the use of greater insert density for aggressive spherical, conical or ballistic tipped bits.
 concave
convex
FLAT FACE DESIGN OILFIELD FACE DESIGN
Flat Face design 
For hard rock formations where a very durable head is required. The flat face design is very stable and forgiving in fractured, voided or unconsolidated formations. The flat face design also handles abrasive formations well. Some models are available with face slots for improved hole cleaning.
Oilfield Face 
A combination of convex and concave designs, the oilfield head design provides the benefits of both in all applications. The second gage row shares the high loads on the gage inserts preserving life and reducing wear. The center cone provides stability and straightness.
flatface cckrush

DTH Bit Flat Face - QL60 Shank

DTH BIT QL 60 FLAT FACE

DTH Bit Convex Face - Copp44 / QL40 Shank

dth bits

DTH Bit Oilfield Face - QL60 Shank

DTH BIT QL 60 OILFIELD FACE

 

DTH Bit Oilfield Face - SD10 Shank

DTH BIT SD10 OILFIELD

Our DTH BITS are manufactured according to the highest standard quality for water well, geothermal drilling, quarry mining, blast holes applications.