GSE QL DTH Hammer

The DTH is the abbreviation of Down The Hole and sometimes it is also called RAB in some markets, then the RAB is short for Rotary Air Blasting.

Description

SINODRILLS GSE QL DTH Hammers

DTH (down-the-hole) drilling involves a drilling hammer at the bottom of a drill string, the hammer is powered by compressed air transmitted via drilling rod to drive piston and produce impact power, which is then delivered into rocks for drilling and crushing. DTH drilling can be applied in mining, quarrying, water well drilling, foundation piling, etc. DTH hammer uses compressed air to produce impact power, thus to drive drill bits to crush rocks.

Features of GSE QL DTH Hammers

The GSE QL DTH Hammers are meticulously engineered to deliver exceptional drilling performance, focusing on longevity and efficiency through advanced manufacturing and design principles. These hammers are built to withstand the most demanding conditions, ensuring consistent and productive operation.

Premium material, fine CNC and heat-treatment manufacturing processes and optimized design: Each hammer is crafted from superior-grade materials, subjected to precise CNC machining, and undergoes specialized heat-treatment processes. This meticulous manufacturing, combined with an optimized internal design, ensures maximum strength, wear resistance, and efficient energy transfer.
Good stability and reliability: The robust construction and balanced design of the GSE QL DTH Hammers contribute to their excellent stability during operation, minimizing vibrations and ensuring reliable performance even in challenging ground conditions.
High impact frequency: Engineered to deliver a greater number of impacts per minute to the drill bit, resulting in significantly faster penetration rates and increased drilling productivity.
Lowered compressed air consumption: The hammer’s efficient design optimizes the use of compressed air, converting more air energy into drilling power. This leads to reduced fuel consumption for compressors and lower overall operating costs.
Long lifespan: Thanks to the use of premium materials, advanced manufacturing techniques, and a focus on durability in design, GSE QL DTH Hammers boast an extended operational life, providing excellent long-term value and reducing the frequency of replacements.

Applications of GSE QL DTH Hammers

The GSE QL DTH Hammers are highly versatile and indispensable tools, designed to perform exceptionally across a broad spectrum of demanding drilling operations. Their robust construction and efficient performance make them ideal for various industrial applications where precise and powerful rock penetration is required.

Mining: Essential for efficient blast hole drilling, exploration, and production in both open-pit and underground mining operations, contributing to higher productivity and material extraction.
Quarrying: Delivers reliable and rapid drilling for aggregates, dimension stone, and other quarry materials, optimizing resource yield and operational timelines.
Water Well Drilling: Crucial for boring through diverse geological formations to access groundwater, serving vital needs in agricultural, industrial, and municipal water supply projects.
Geothermal Well Drilling: Well-suited for creating boreholes for geothermal energy systems, adept at handling the often complex and deep rock conditions associated with such ventures.
Foundation Piling: Widely used in civil engineering and construction for drilling robust holes for building foundations, micro-piles, and ground anchoring, ensuring structural stability and safety.

Structure of GSE QL DTH Hammers

The GSE QL DTH Hammer, as shown in the image, features a robust and essential structure designed for efficient and powerful Down-The-Hole drilling operations. Its components are engineered to work cohesively to transmit percussive energy to the drill bit, facilitating rapid rock penetration.

Top Sub (Shank Adaptor): Clearly visible at the top, this is the threaded component that connects the DTH hammer to the drill pipe of the rig. It’s designed to endure the significant rotational torque and axial thrust from the drilling machine.
Outer Cylinder (Casing/Hammer Casing): This is the main, long, cylindrical body of the hammer. It encases all the internal moving parts, protecting them from external debris and acting as the pressure vessel for the compressed air that drives the piston.
Piston (Internal): Although not externally visible, the piston is the core component inside the outer cylinder. It is actuated by compressed air, rapidly reciprocating to deliver forceful impacts to the drill bit.
Chuck (Bit Holder): Located at the very bottom of the hammer, this component is responsible for securely holding the DTH drill bit. It is designed to transfer the impact energy from the piston directly to the bit. It also often features splines that engage with the bit shank, allowing for rotational force transfer.
Internal Air Passages and Valve System: The hammer’s design includes intricate internal pathways for compressed air to flow, control the piston’s movement, and then exhaust through the drill bit face to clear cuttings from the borehole.
Retaining Ring / Locking Mechanism: (Not distinct in the image, but implied) A mechanism, usually at the bottom, that firmly locks the drill bit into the chuck, preventing it from detaching during drilling operations.

GSE-QL40 DTH Hammer

Net weight	Out diameter	GSE-QL40 DTH hammer length without bits
39.5 kg	99 mm	953 mm
Rec. hole size	Working pressure	Air consumption: M3(CBM)/min
105mm – 130mm	8 bar – 25 bar	@ 10 bar	@ 18 bar	@ 24 bar
105mm – 130mm	8 bar – 25 bar	5	10.2	15

GSE-QL50 DTH Hammer

Net weight	Out diameter	GSE-QL50 DTH hammer length without bits
74 kg	126 mm	1008mm
Rec. hole size	Working pressure	Air consumption: M3(CBM)/min
133mm – 152mm	8 bar – 30 bar	@ 10 bar	@ 18 bar	@ 24 bar
133mm – 152mm	8 bar – 30 bar	7.5	14.7	19.5

GSE-QL60 DTH Hammer

Net wight	Out diameter	GSE-QL60 DTH hammer length without bits
110 kg	144 mm	1081 mm
Rec. hole size	Working pressure	Air consumption: M3(CBM)/min
152mm – 254mm	8 bar – 30 bar	@ 10 bar	@ 18 bar	@ 24 bar
152mm – 254mm	8 bar – 30 bar	8.7	14.5	25

GSE-QL80 DTH Hammer

Net weight	Out diameter	GSE-QL80 DTH hammer length without bits
182 kg	182 mm	1210 mm
Rec. hole size	Working pressure	Air consumption: M3(CBM)/min
194mm – 305mm	8 bar – 35 bar	@ 10 bar	@ 18 bar	@ 24 bar
194mm – 305mm	8 bar – 35 bar	12	26	35