Down The Hole Hammers
Professional Down The Hole Hammers Supplier
Gdrills is a professional down-the-hole hammers supplier, offering high-performance standard DTH hammers and reverse-circulation DTH hammers designed for fast penetration, durability, and reliable performance in all types of drilling conditions.
Why Choose Us
Our certificates
We have established a complete quality management system and passed ISO9001 quality management system certification and ISO14001 environmental protection management system certification.
Production market
Our products have been used in many large-scale mines and tunnel projects, and our business scope covers Africa, the Middle East, Central Asia, South America, Australia and other regions.
Our services
In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.
High-Performance Down-The-Hole (DTH) Hammers
Gdrills' high-quality DTH hammers will increase your drilling productivity. Our down-the-hole hammers provide dependable performance in the hardest rock formations because they are designed for maximum energy transfer, high penetration rates, and low air consumption. Compliant with shanks that meet industry standards (DHD, COP, QL, Mission, SD)
Effective and handy: One of the benefits of down-the-hole hammer drilling method is its great efficiency. This method reduces the need for extensive pre-testing before drilling as the construction is direct and quick, therefore enhancing the job efficiency.
Wide spectrum of uses: From hydropower, railroads, highways to water wells, building foundation piles and geological investigation, down-the-hole hammer drilling finds extensive use. The application area of down-the-hole hammers is still growing as technology develops constantly.
Low impact power loss: The down-the-hole hammer May be utilised in deeper holes as its impact power loss is rather minor when compared to the pneumatic drill affecting outside the hole. When deep hole drilling is necessary and guarantees the smooth development of drilling activity, this function makes the down-the-hole hammer a more perfect option.
High penetration rate
Our dth hammer drill models are designed to drill rapidly through even the toughest materials.
Durability
Dth hammers are made with high-quality materials and designed to withstand tough drilling conditions, extending tool life.
Air efficiency
Optimized air cycles in dth hammers maximize performance while minimizing energy consumption.
Shock resistance
Built to endure high impact, our downhole hammer drills prevent premature wear or damage.
Adaptable sizing
Available in various sizes, these hammers cater to a range of drilling requirements, from small hole hammer projects to large boreholes.
Easy bit replacement
Our dth hammer bits feature a simplified design for quick and efficient changes.
Streamlined design
Our rock drill hammers boast a sleek, effective design that reduces unnecessary weight while maximizing drilling power.
Water Well Drilling: Ensuring deep, straight, and clean holes efficiently.
Mining & Quarrying: High-frequency impact for blast hole drilling in hard rock.
Geothermal Drilling: Reliable performance in deep-hole and high-temperature environments.
Foundation & Construction: Ideal for micro-piling and anchoring projects.
Comprehensive Shank Compatibility
We offer a full range of DTH hammers from 3-inch to 12-inch sizes, compatible with the following widely-used bit shanks:
- DHD Series: DHD3.5, DHD340, DHD350, DHD360, DHD380
- QL Series: QL30, QL40, QL50, QL60, QL80
- Mission Series: Mission30, Mission40, Mission50, Mission60
- SD Series: SD4, SD5, SD6, SD8
- RE Series: RE004, RE542
Selection Guide
To meet the diverse needs of global drilling projects—from small-scale blasting to large-diameter deep well drilling—Gdrills offers a comprehensive lineup of DTH hammers. Our heavy-duty series (8"-12") is specifically engineered for high-torque and high-impact stability.
|
Hammer Size (inch) |
Outer Diameter (mm) |
Recommended Hole Range (mm) |
Working Pressure (Mpa) |
Recommended Shank Type |
|
2” |
62 - 68 |
64 - 76 |
0.5 - 1.2 |
BR2 |
|
3” |
79 - 82 |
85 - 105 |
1.0 - 1.5 |
DHD3.5, COP34, QL30, Mission30, BR3 |
|
4” |
98 - 102 |
105 - 130 |
1.0 - 2.5 |
DHD340, COP44, QL40, Mission40, SD4 |
|
5” |
115 - 125 |
130 - 152 |
1.2 - 2.5 |
DHD350, COP54, QL50, Mission50, SD5 |
|
6” |
142 - 148 |
152 - 190 |
1.5 - 2.5 |
DHD360, COP64, QL60, Mission60, SD6 |
|
8” |
180 - 190 |
200 - 254 |
1.5 - 2.5 |
DHD380, COP84, QL80, Mission80, SD8 |
|
10” |
225 - 240 |
254 - 305 |
1.5 - 2.5 |
SD10, NUMA100, Mission100 |
|
12” |
275 - 295 |
305 - 450 |
1.5 - 2.5 |
SD12, NUMA120, Mission120 |
Why Choose Gdrills DTH Hammers?
- Advanced Valveless Air Distribution: Designed with a state-of-the-art valveless technology to guarantee extremely effective air compression, lowering your overall air consumption and energy loss.
- Outstanding Penetration Rates: Designed to give the drill bit the most impact energy possible, greatly speeding up drilling and cutting down on project time.
- Heavy-Duty Durability: Made from high-quality hardened alloy steel with cutting-edge heat treatment, this product offers exceptional wear resistance and a longer service life even in abrasive rock.
- Universal Compatibility: Easily integrates with your current drill rigs thanks to its perfect compatibility with well-known shank designs as DHD, COP, QL, Mission, and SD.
- Easy Maintenance: A straightforward internal structure with fewer moving components makes on-site maintenance less expensive and facilitates assembly and disassembly.
Ordering Process of Down The Hole Hammers
Define your needs
Determine the required borehole diameter. The hammer's outside diameter should be slightly smaller than the borehole size to allow for efficient cutting and debris removal.
Select the hammer
Choose a hammer that's compatible with your borehole size and drilling depth. Consider different hammer types and select the one best suited for your drilling needs and rock type.
Confirm your needs
Double check with suppliers of your needs and make sure every details are notified.
Finalize the order
Carefully review the hammer's specifications and make sure they meet your needs. Discuss pricing, delivery options, and any potential lead times with the supplier.
Packing and Shipping of Down The Hole Hammers
|
Packing |
Cartonbox, plastic bag, wooden case. |
|
Shipping |
Shipped by road, sea, rail |
Q: How do I choose the right DTH hammer for my air compressor?
A: The decision is based on the air delivery volume (CFM/m³/min) and operating pressure (Bar/PSI) of your compressor. Optimizing penetration rates and avoiding hammer stalling are ensured by matching the air consumption criteria of the hammer with your compressor.
Q: What is the difference between high air pressure and low air pressure DTH hammers?
A: When drilling deep holes in hard rock, high air pressure hammers work more quickly and need a larger compressor. Because they require less air, low air pressure hammers are usually utilized in shallow holes or softer rocks.
Q: Can you manufacture custom DTH hammers?
A: Yes, as an OEM/ODM manufacturer, we can customize the outer diameter, internal structure, and shank compatibility based on your specific project needs.