High-Pressure DTH Hammer and Drill Bit
Product Center
High-Pressure DTH Hammer and Drill Bit
Product Center
High-Pressure DTH Hammer and Drill Bit
The GSD series down-the-hole (DTH) drill bits are exclusively designed to match the GSD valve‑less, high‑pressure DTH hammer. Featuring an SD‑series structural design, they are compatible with drill‑bit systems of the same specification and can operate across a wide pressure range of 1.2–3.2 MPa. Constructed with a high‑strength alloy steel body and equipped with high‑toughness tungsten carbide ball teeth, these bits undergo precision machining and multi‑stage heat treatment, minimizing impact‑energy loss. They are specifically engineered for hard, highly abrasive rock formations such as granite, basalt, and hard quartzite, and are widely used in open‑pit mining deep‑hole blasting, slope stabilization in transportation infrastructure, rock‑well drilling, and geotechnical hazard mitigation projects.
The GSD series valve‑less high‑pressure downhole hammer features an advanced self‑venting design that eliminates traditional valve‑plate components, accommodating a wide air‑pressure range of 1.2–3.2 MPa. By leveraging the piston’s intrinsic structure, it achieves automatic airflow reversal, with high‑pressure gas directly driving the piston to deliver high‑frequency reciprocating impacts on the drill bit. Paired with the GSD series’ dedicated downhole drill bits, this system is optimized for drilling in hard rock and highly abrasive formations, finding extensive application in open‑pit mining, civil‑engineering anchoring, rock drilling, and geotechnical stabilization projects. The valve‑less architecture reduces maintenance requirements associated with valve plates, enhancing operational stability during continuous drilling. It is ideally suited for long‑duration, uninterrupted, large‑scale drilling operations.
The GQL series DTH drill bits are exclusively designed to match GQL series valve‑type DTH hammers. Featuring a QL‑series structural design, they are compatible with corresponding drill‑bit systems and operate effectively under air pressures of 1.0–2.4 MPa. Constructed with a high‑quality alloy‑steel matrix and equipped with high‑toughness tungsten carbide ball teeth, these bits leverage precision machining and advanced heat‑treatment processes to ensure efficient transmission of impact energy. They are well suited for medium‑hard to hard rock formations such as limestone, granite, and basalt, and are widely employed in mining operations, geotechnical support for transportation infrastructure, water‑well drilling, and soil‑and‑rock remediation projects.
The GQL series high‑pressure downhole hammer features a QL‑series structural design, compatible with drill‑tool systems of the same specification. It employs a proven valve‑type air‑distribution mechanism and is suited to operating pressures ranging from 1.0 to 2.4 MPa. Relying on a stable, reliable air‑distribution system and an optimized piston‑impact mechanism, it efficiently converts pneumatic energy into impact kinetic energy. When used in conjunction with the GQL series’ dedicated downhole drill bits, it delivers exceptional performance. This product is widely applied in open‑pit mining, support for transportation infrastructure, water‑well drilling, and geotechnical borehole operations, and is capable of handling medium‑hard to hard rock formations such as granite, limestone, and basalt, balancing versatility with sustained operational reliability.
The GM series high‑pressure DTH drill bits are exclusively designed to match GM valve‑less DTH hammers, operating effectively under high‑pressure conditions of 1.2–3.0 MPa. They have been specifically developed for hard, highly abrasive rock formations such as granite and basalt. The drill bits feature precise spline and air‑channel alignment with GM hammers, efficiently transmitting high‑frequency impact energy. They are widely used in hard‑rock drilling applications, including open‑pit mining, infrastructure anchoring, photovoltaic pile foundations, and medium‑to‑deep hole rock drilling.
The GM series valve‑less high‑pressure downhole hammer is designed to operate with a 1.2–3.0 MPa high‑pressure air supply. Featuring a novel internal air‑distribution design without foot valves, it is specifically engineered for granite, basalt, and other highly abrasive, hard rocks. It serves as the primary drilling tool for open‑pit mining, infrastructure anchoring, photovoltaic pile foundations, and deep‑well drilling. Compared with conventional foot‑valve hammers, the GM series eliminates valve‑plate breakage and sticking issues, delivers higher impact frequencies, and reduces air consumption. When paired with the matching GM series downhole drill bits, it minimizes energy‑transfer losses, ensuring stable, efficient performance in deep‑hole drilling across all operating conditions—covering everything from small to large diameters.
The GD series high‑pressure DTH drill bits are exclusively designed to match the entire GD line of DTH hammers, operating with a high‑pressure air supply of 1.0–3.0 MPa. They are engineered for hard, highly abrasive rock formations such as granite and basalt, featuring a spline‑type connection that ensures precise engagement with the hammer. By efficiently transmitting high‑frequency impact energy, these bits effectively break rock, making them ideal for deep‑hole drilling in hard rock applications—including open‑pit mining, infrastructure anchoring, pre‑splitting blasting, and water‑well drilling.
The GD series high‑pressure DTH hammer is a core downhole rock‑drilling tool designed to operate with high‑pressure air sources ranging from 1.0 to 3.0 MPa. It utilizes high‑pressure compressed air to drive an internal piston that delivers high‑frequency reciprocating impacts to the drill bit, enabling efficient drilling of hard rock through a “impact‑breakage plus low‑speed rotation” mode. The GD series is widely suited for applications such as open‑pit mining, construction‑blasting holes, water‑well drilling, slope anchoring, and tunnel advance drilling. Unlike low‑pressure hammers, the GD series features enhanced wear‑resistant designs for the cylinder, piston, and air‑distribution system, resulting in reduced impact‑energy loss under high‑pressure conditions. This leads to significantly increased penetration rates in granitic, basaltic, and highly abrasive hard‑rock formations, making it the primary drilling equipment for medium‑ and large‑diameter deep‑hole operations.
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Sales Hotline : +86 19083069638
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