Algeria is currently undergoing a historic industrial transformation, driven by its National Mining Sector Development Plan. From the massive Gara Djebilet Iron Ore Project in the Tindouf Province to the expansive phosphate reserves in Tebessa (El Aouedj), the country's extractive industries demand reliable, high-end consumables. Tapered drill rods, specifically in Hex 22 (H22) and Hex 25 (H25) cross-sections, form the backbone of these operations. Hand-held jackhammers and pneumatic underground rigs rely on these tools to pierce highly abrasive formations, including hard granite, dolomite, and dense quartzites.
In addition to mining, Algeria’s infrastructural scaling—such as the expansion of the Algiers Metro network, the construction of tunnels along the East-West Highway, and localized hydraulic projects in Southern Saharan regions—demands high-penetration-rate drilling tools. Geological profiles in northern Algeria present complex clay-limestone sequences and heavily fractured rock mass. Using low-grade drill rods in these formations leads to frequent shank breakage and rapid thread wear, bringing expensive equipment to a standstill. Our engineered tapered drill rods address this exact bottleneck, delivering maximum fatigue resistance and optimal energy transfer from the rock drill to the bit face.
Selecting the correct taper angle (7°, 11°, or 12°) is critical to drilling efficiency. In the abrasive sandstone and hard volcanic formations of the Hoggar Mountains, 11-degree and 12-degree rods are preferred as they distribute high-impact forces better and prevent the bit from detaching. For lighter pneumatic drills operating in the limestone quarries of Constantine and Oran, 7-degree taper systems offer an optimal balance of easy detaching and tight locking alignment.
The performance of a tapered drill rod is determined by its metallurgical composition and heat treatment process. Our factory utilizes premium alloy steel, which is processed through advanced carburizing and induction-hardening cycles. This creates a highly wear-resistant outer skin while maintaining a ductile core to absorb repetitive shockwaves.
| Parameter / Specification | Hex 22 (H22mm) Series | Hex 25 (H25mm) Series | Premium Heavy DTH Stem |
|---|---|---|---|
| Shank Dimension | 22mm × 108mm / 22mm × 82.5mm | 25mm × 108mm / 25mm × 159mm | Threaded / Splined Custom |
| Taper Angle Degrees | 7°, 11°, 12° (Conical Forged) | 11°, 12° High Duty | API Thread Connections |
| Core Hardness (HRC) | 38 - 42 HRC | 40 - 45 HRC | 42 - 48 HRC |
| Surface Hardness (HRC) | 58 - 62 HRC (Carburized) | 58 - 62 HRC (Carburized) | 60 - 64 HRC |
| Applicable Rock Drill | Epiroc RD 22U, YT24, YT28, jackhammers | YT29A, heavy pneumatic drills | DTH Crawler Rigs |
| Length Options | 400mm - 8000mm | 800mm - 6400mm | 1000mm - 9000mm |
Our manufacturing pipeline employs a strict fully-carburized heat treatment process. Carburization infuses carbon into the rod's outer steel layer under high temperatures, ensuring that the rod remains resilient against surface micro-cracking caused by abrasive rock dust. The flushing hole is lined with a special anti-corrosion layer to prevent chemical erosion from mine water, which typically causes premature inner-wall failure in standard drill rods.
Industrial scale demands custom-tailored solutions. We don't just supply individual components; we engineer integrated drilling solutions designed to lower the Total Cost of Ownership (TCO) per drilled meter.
Driving Innovation in Industrial Machinery and Building a New Era of Advanced Equipment Manufacturing
Shandong E-Way Machine Co., Ltd. is a modern industrial equipment manufacturer dedicated to the research, development, production, and service of high-quality machinery and engineering solutions. With a strong focus on technological innovation and manufacturing excellence, the company serves customers in mining, construction, and various heavy-duty industrial sectors worldwide.
Over the years, Shandong E-Way Machine has developed a diversified product portfolio covering mining and construction drilling equipment, pneumatic and hydraulic tools, anchoring and support systems, mechanical transmission components, and a wide range of spare parts and accessories. In addition, the company provides customized machining services, including precision components, structural parts, and wear-resistant engineering plastic products, meeting the specific needs of different working conditions and industries.
Innovation is the core driving force behind Shandong E-Way Machine’s sustainable development. The company brings together experienced engineers and technical experts specializing in mechanical design and industrial equipment development. Through continuous research and development, we improve product structures, enhance operational efficiency, and upgrade performance reliability. By integrating advanced manufacturing technologies and practical engineering experience, we have developed a series of independently designed products that deliver stable performance even under complex and demanding working environments.
Quality is the foundation of our enterprise. Shandong E-Way Machine strictly follows a comprehensive quality management system throughout every stage of production—from raw material selection and precision machining to final inspection and testing. Understanding the critical importance of safety in mining and industrial applications, our products are engineered with enhanced structural strength, safety protection features, and long-term durability. This ensures reliable operation under high load, harsh conditions, and continuous working environments.
At our modern production hub in Shandong, China, we operate under a strict Factory 4.0 model. By integrating automated manufacturing, CNC precision threading, robotic welding, and real-time infrared inspection systems, we ensure every single tapered drill rod meets micro-tolerance requirements. Our premium hollow drill steel bars are rolled using state-of-the-art mills, optimizing concentricity of the central flushing channel. This prevents mechanical stress concentrations that typically cause cracks under heavy torque.
For our partners in Algeria, supply chain reliability is paramount. Shandong E-Way Machine maintains a strong logistics channel from Qingdao Port straight to the major Algerian ports of Algiers, Oran, and Skikda. By holding permanent raw materials and standardized rods in stock, we reduce lead times by 30% compared to typical Western European manufacturers, providing a distinct operational edge.
Exporting heavy machinery consumables to North Africa requires extensive knowledge of local regulatory standards. We handle the process by supplying fully compliant paperwork, including the necessary Certificate of Conformity (CoC) required for Algerian Customs clearance, ensuring seamless transit and avoiding port storage fees.
Additionally, our post-sales service team offers remote troubleshooting and wear-rate analysis, helping mining site engineers maximize the lifespan of their drill steel. We provide recommendations for correct alignment, lubrication pressure, and bit grinding frequency to ensure your drilling operation runs efficiently.
For hard, highly abrasive formations like the granite zones of Hoggar, 11-degree or 12-degree taper angles are recommended. These angles provide a more stable mechanical coupling, reducing bit detachment and shank failure under high impact force.
Hex 22 (22mm cross-section) is typically used with hand-held jackhammers and lighter pneumatic drills for small-diameter hole applications. Hex 25 (25mm cross-section) is design-optimized for heavier pneumatic rock drills and hydraulic rigs, offering higher torque capacity and resistance to bending.
Yes, we provide full regulatory support for Algerian customs (ALGERAC/IANOR requirements), including Certificates of Conformity (CoC), Certificate of Origin, and complete mill test certificates to ensure smooth, hassle-free port clearance.
Our rods are manufactured using 23CrNi3Mo high-quality structural alloy steel and undergo an advanced carburizing process. This produces a wear-resistant surface shell while maintaining a high-impact core, significantly reducing fatigue failures.
For standard models like H22*108mm in 7° or 11°, we maintain regular inventory for quick dispatch. Direct ocean shipping from Qingdao Port to major Algerian ports takes approximately 25 to 35 days, depending on shipping schedules.
