GSD Series
GSD Series
Product Center
GSD Series
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.
