High-Performance Water Well Drilling DTH Hammer
High-Performance Water Well Drilling DTH Hammer Product Specifications
Technical Specifications Matrix
Industrial Water Well Drilling, Quarrying & Deep-Hole Excavation Solutions
|
Model |
KSZJ-18/17 |
KSZJ-19/18 |
|
Nominal Volume Flow, m³/min |
18 |
19 |
|
Rated Discharge Pressure, MPa |
1.7 |
1.8 |
|
Unit Weight, kg |
3200 |
3200 |
|
Overall Dimension (L×W×H), mm |
3000×1800×2000 |
3000×1800×2000 |
|
Manufacturer |
Yuchai |
Yuchai |
|
Model |
YC6A260L-20 |
YC6A260L-20 |
|
Type |
Vertical, In-line, Water-cooled |
Vertical, In-line, Water-cooled |
|
Intake Mode |
Turbocharged & Intercooled |
Turbocharged & Intercooled |
|
Bore × Stroke × Cylinder Qty |
108×132×6 |
108×132×6 |
|
Displacement, L |
7.255 |
7.255 |
|
Rated Speed, r/min |
1800 |
1800 |
|
Unloading Speed, r/min |
1400 |
1400 |
|
Rated Power, kW (HP) |
191 (260) |
191 (260) |
|
Engine Oil Capacity, L |
21.9 |
21.9 |
|
Fuel Tank Capacity, L |
350 |
350 |
|
Electrical System Voltage, V |
24 |
24 |
|
Airend Model |
SKY170L-16 |
SKY1817 |
|
Compression Stage |
1 |
1 |
|
Compressor Oil Capacity, L |
48 |
48 |
|
Air Supply Valve - Spec. & Qty. |
G2×1, G3/4×1 |
G2×1, G3/4×1 |
System Pairing Note: Pairing our heavy-duty DTH hammers with the 18/17 Two-stage Diesel Portable Screw Air Compressor guarantees stable bottom-hole cleaning, preventing secondary crushing of rock cuttings and extending bit carbide life by up to 35%.
Core Technical Advantages & Design Innovation
Our DTH hammers incorporate advanced thermodynamic and fluid-dynamic design principles to optimize air cycle frequency and minimize internal back-pressure. Key technological features include:
Optimized Air Distribution Structure:
The internal piston and cylinder geometry are meticulously engineered using computational fluid dynamics (CFD) to maximize kinetic energy conversion. This ensures maximum blow energy per stroke, drastically accelerating rock fragmentation.
Heat-Treated Alloy Steel Construction:
Manufactured from premium-grade nickel-chromium-molybdenum alloy steel and subjected to proprietary carburization heat-treatment processes, external casings and internal components exhibit superior surface hardness coupled with high core toughness, resisting fatigue failure under severe impact loads.
Valveless Design & Low Air Consumption:
Featuring a simple, reliable valveless distribution system, the hammer reduces internal component count, eliminating failure points and lowering overall air consumption without sacrificing impact frequency or output power.
Executive Overview & Introduction
Engineered for high-efficiency rock fracturing in demanding geological formations, our premium Down-The-Hole (DTH) hammers represent the absolute pinnacle of modern water well drilling and excavation technology. Designed specifically for deep-well exploration, municipal water supply, mining, and civil engineering infrastructure projects, these hammers maximize impact energy transfer directly to the drill bit, significantly minimizing energy loss typically caused by long drill string rods. Whether confronting hard granite, fractured limestone, or abrasive sandstone, our DTH hammers deliver exceptional penetration rates, structural reliability, and long operational service life.
To achieve peak pneumatic performance in remote field conditions, our DTH hammers are fully optimized to operate seamlessly with heavy-duty mobile power sources, such as the 18/17 Two-stage Diesel Portable Screw Air Compressor. This robust power pairing ensures stable, high-volume airflow and continuous high pressure, enabling uninterrupted drilling operations and superior bottom-hole cleaning even in the most extreme environments.
Frequently Asked Questions (FAQ)
Q1: How do I select the correct DTH hammer size for my water well project?
A: Hammer selection is primarily determined by your target finished borehole diameter and the local geological formation. Ensure your drill rig's rotation torque and air compressor capacity match the hammer's volumetric and pressure requirements. For instance, high-pressure deep drilling operations require matching air delivery systems like the 18/17 Two-stage Diesel Portable Screw Air Compressor to maintain optimal penetration performance.
Q2: What maintenance practices extend the service life of a DTH hammer?
A: Regular lubrication using high-grade rock drill oil is critical to prevent premature internal wear. Additionally, operators should inspect internal components every 200 drilling hours, clear debris immediately after pulling out of the hole, and store the hammer with rust-inhibiting oil when inactive for extended periods.
Q3: Can these DTH hammers operate effectively in muddy or water-logged formations?
A: Yes. Our hammers feature an integrated check valve designed to prevent mud and water backflow into the internal chamber when the air supply is interrupted, protecting precision surfaces from corrosive slurry and abrasive particle ingress.
Q4: What shank types are available for international drill bits?
A: We manufacture hammers compatible with all major global shank profiles, including COP (Atlas Copco style), DHD (Ingersoll-Rand style), QL, and SD series, ensuring effortless sourcing and replacement of drill bits worldwide.
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