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Down The Hole DTH Hammer

Down The Hole (DTH) Hammer is a drilling tool for mining, construction, and hard materials, using compressed air or gases to drive a piston hammer, causing rock surfaces to break apart.

PRODUCT INTRODUCTION

PRODUCT INTRODUCTION

Products Description LEANOMS

 

A Down The Hole DTH Hammer is a drilling tool used in mining, construction, and other industries for drilling holes in rock, soil, or other hard materials. It's a type of percussion drilling equipment that operates by using compressed air or other gases to drive a piston hammer inside the hammer assembly. The hammer bit attached to the bottom of the hammer assembly strikes the rock surface repeatedly, causing it to break apart.

 

NUMA100 DTH Hammer And Bits
NUMA100 DTH Hammer And Bits

Here's how a Down The Hole DTH Hammer typically works:

 

Hammer Assembly: The Down The Hole DTH Hammer consists of a hollow steel casing with an internal piston assembly. The piston moves up and down inside the casing, driven by compressed air.

 

Bit: The drilling bit is attached to the bottom of the hammer assembly. It's designed to break the rock as it strikes the surface. Different types of bits are used depending on the type of rock or material being drilled.

 

Compressed Air: Compressed air or other gases are introduced into the hammer assembly through an air hose. The air pressure drives the piston downward, striking the bit against the rock.

 

Percussion: As the piston strikes the bit, the energy is transferred to the rock, causing it to break apart. The broken rock fragments are then cleared from the hole by the air pressure, creating a borehole.

 

Rotation: In some drilling applications, the Down The Hole DTH Hammer may also provide a certain level of rotational force to the bit, helping to further break the rock and create the hole.

 

Down The Hole DTH Hammers are known for their efficiency in drilling through hard rock formations. They are used in various applications, including mining (for exploration, production, and blasting), water well drilling, foundation drilling, and more. The size and power of Down The Hole DTH Hammer can vary depending on the specific drilling requirements.

 

Advantages of DTH drilling include high drilling rates, accurate hole straightness, and the ability to drill in challenging rock formations. However, DTH drilling can be relatively noisy and may produce a significant amount of dust.

 

Specification LEANOMS

Technical Parameters Of NUMA100 DTH Bits

 

Diameter Gauge Buttons
(mm)
Front Buttons(mm) Weight(KG) Part Number
mm Inch Flat Face Convex Face Concave Face Face Type
254 10 Φ19*12 Φ16*12 Φ18*8 Φ16*6 Concave Face 88.4 LR-N100-254CC
275 10 5/6 Φ19*12 Φ16*12 Φ18*8 Φ16*8 Concave Face 92.5 LR-N100-275CC
305 12 Φ19*15 Φ18*15 Φ18*12 Φ16*9 Concave Face 105.0 LR-N100-305CC
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