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DTH Hammer

In air drilling, DTH Hammer is one of the core tools, greatly improving drilling efficiency in hard rock formations. Its core function is to transmit its high-frequency, high-energy impact energy to the drill bit, which then acts on the rock at the bottom of the well, achieving a composite rock-breaking method that primarily uses impact crushing, supplemented by rotary shearing.
Real Inch:2.8-13
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Core Power Component for Water Well Drilling - DTH Hammer

As the “heart” of water well drilling systems, our DTH Hammer is a global favorite for its stable power, super durability, and efficient crushing. It excels in hard rock, weathered layers, and complex geology, boosting hole-forming efficiency and operational stability by transmitting impact energy accurately.
Core Advantages: Made of high-purity alloy steel, it has 40% higher impact resistance than industry standards. Service life extends over 50% under normal use, cutting replacement costs. Its precision gas distribution optimizes impact performance, increasing 15-30m drilling speed by 30% and reducing per-well time by 2-3 hours.
Proven Worldwide: Trusted in 20+ countries for arid-area deep wells, farm irrigation wells, and geological exploration. With 20 years of experience, we offer customized parameters and 24/7 pre-sales & localized after-sales support.
Choose our DTH Hammer for efficient, durable power for your projects. Contact us now for exclusive specs and quotes.

UNIQUEMAC DTH Hammer: Versatile for Global Drilling

With exceptional adaptability and durability, the UNIQUEMAC DTH Hammer delivers outstanding performance in various global drilling scenarios, serving as the core equipment for construction teams across industries. Whether it’s deep water well drilling, agricultural irrigation projects, or geological exploration, it accurately meets demands and delivers high-efficiency power.
Deep Water Well Drilling in Arid Areas
Crafted with high-wear-resistant alloy material and a strengthened impact structure, the UNIQUEMAC Impactor can efficiently crush hard rock formations such as granite and basalt. Its hole-forming speed is 30% higher than that of ordinary equipment, helping to quickly obtain stable water sources and solve the water supply problems for residents and livestock.
Agricultural Irrigation Well Construction
Compatible with small and medium-sized water well drilling rigs, the impactor can quickly drill well holes of various specifications. Equipped with a high-efficiency slag discharge design, it prevents sediment blockage, ensures stable irrigation water flow, and contributes to increased agricultural output and income.
Geological Exploration and Mining Drilling
In mineral resource exploration projects, the impactor can accurately drill pilot holes and quickly obtain rock formation structure data, providing reliable geological references for subsequent mining projects. Its shock-resistant and wear-resistant properties enable it to adapt to the complex and harsh construction environment of mines, reducing equipment downtime due to malfunctions.
Emergency Rescue Water Well Drilling
In emergency water supply scenarios after natural disasters such as floods and droughts, the UNIQUEMAC Impactor starts quickly and operates efficiently. It can drill emergency water wells in a short time, providing much-needed water sources for rescue sites and facilitating the smooth progress of disaster relief efforts.

Parameters of DTH Hammer


Real inch Model Length
(mm)
Weight
(Kg)
External Diameter
(mm)
Connection Thread Bit Shank Hole Range(mm) Work Pressure
(Mpa)
Recommended Rotation Speed
(r/min)
Air Consumption
2.8 ND25A 872 16 71 T48*10*1.5 ND25A 76-90 1-1.7 30-50 1Mpa  3m³/min 1.5Mpa  4.5m³/min
3.23 ND35A 886 24.2 82 API2 3/8″REG ND35A 90-115 1-1.7 30-50 1Mpa  4m³/min 1.5Mpa  6.5m³/min
3.9 ND45A 986 40.5 99 API2 3/8″REG ND45A 110-135 1-2.2 30-60 1Mpa  5m³/min 1.8Mpa  9m³/min
4.96 ND55A 1122 70 126 API2 3/8″REG ND55A 136-155 1-2.5 30-60 1Mpa  7m³/min 1.5Mpa  13m³/min
4.6 ND55S 1119 62 117 API2 3/8″REG ND55S 127-145 1-2.5 30-60 1Mpa  6m³/min 1.5Mpa  12m³/min
5.8 ND65A 1210 106 148 API3 1/2″REG ND65A 158-203 1.2-2.5 30-60 1.8Mpa  16m³/min 2.4Mpa  23m³/min
6.5 ND75A 1225 143.5 165 API3 1/2″REG ND75A 178-216 1.5-2.8 30-60 1.8Mpa  21m³/min 2.4Mpa  28m³/min
7.28 ND85A 1354 193 185 API4 1/2″REG ND85A 198-254 1.5-3.3 30-60 1.8Mpa  25m³/min 2.4Mpa  34m³/min
8.9 SP1081 1475 299.5 225 API5 1/2″REG NUMA100A 254-311 1.5-3.3 30-60 1.8Mpa  36m³/min 2.4Mpa  58m³/min
12 N125A 1785 698.5 305 API6 1/2″REG NUMA125A 330-400 1.5-3.3 25-45 1.8Mpa  46m³/min 2.4Mpa  58m³/min
13 ND140A 1861 851 332 API6 5/8″REG
API7 5/8″REG
ND330 350-550 1.5-3.3 30-55 1.8Mpa  53m³/min 2.4Mpa  78m³/min

FAQ of DTH Hammer


1

How Does a DTH Hammer Work?

A DTH Hammer typically generates high-frequency impact forces through a piston system. These impact forces are used in crushing, drilling, or other applications requiring strong impact. The hammer impactor generates shock waves by using compressed gas or liquid to drive a piston in a rapid reciprocating motion.
2

What are Suitable Working Scenarios for DTH Hammers?

DTH Hammers are widely used in mining, building demolition, road construction, oil drilling, and other fields. They are suitable for working environments requiring strong impact forces, such as rock breaking, concrete demolition, geological drilling, and piling.
3

What is Lifespan and Durability of a DTH Hammer?

The lifespan of a hammer impactor generally depends on its design quality, the operating environment, and maintenance. High-quality hammer impactors can operate for thousands of hours under harsh working conditions. Regular maintenance, inspection of wearing parts, and timely replacement are key to extending the equipment's lifespan.
4

What are Maintenance and Upkeep Requirements for DTH Hammers?

To ensure the long-term efficient operation of the hammer impactor, regular inspection and maintenance are recommended:
Cleaning: Clean the equipment after each use to prevent the accumulation of dust and debris.
Lubrication: Regularly add lubricating oil to the moving parts of the impactor to maintain good lubrication.
Inspect Wear Parts: Regularly inspect wear parts such as the piston and cylinder. If severe wear is found, replace them promptly.
Replace Seals: Airtightness is crucial for the normal operation of the impactor. Regularly inspect and replace the seals.

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Drill Rod

In the world of water well drilling, the drill rod is far more than just a piece of steel tube. It serves as the critical backbone and vital link between surface drilling rig and the bottom-hole assembly, performing several indispensable functions that make modern deep-well drilling possible.
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