QDL pitches high-performance DTH bits as lower-cost option over time

Qideli (QDL) is promoting its DTH bit factory output as a more reliable alternative to standard drilling tools, citing longer service life, lower downtime and better efficiency in mining and infrastructure work. The company says its designs are built for harder rock, deeper drilling and lower total cost per meter drilled.

Why it matters: - DTH bits can determine drilling speed, fuel use, borehole quality and project downtime in mining, quarrying and infrastructure work. - Lower-quality bits can fail early, raise operating costs and slow projects when contractors are working in hard rock and deep-hole conditions. - QDL is positioning factory-made DTH bits as a way to cut replacement cycles and improve drilling economics over the full life of a job.

What happened: - Qideli (QDL), based in Putian, China, published a comparison of its DTH bit output against standard alternatives. - The company said it has more than 20 years of technical refinement in DTH drilling tools. - QDL launched its CIR series bits in 2005 and expanded into the DHD series in 2008. - QDL described itself as one of the earliest established DTH bit manufacturers in China. - QDL directed readers to more information.

The details: - Standard bits often use generic designs, while QDL said its process starts with custom engineering for specific geological conditions. - QDL said it uses high-strength alloy steels and works with steel mills to co-develop raw materials for wear resistance, toughness and impact strength. - The company said in-house production and quality control rely on precision CNC equipment to maintain dimensional consistency and compatibility with multiple international hammer brands. - QDL said it uses premium-grade tungsten carbide buttons designed to balance hardness and toughness. - The company said its manufacturing process secures buttons with interference fits and an integrated drilling-and-reaming process to reduce button loss. - QDL said its abnormal button-dropping rate is below 0.5%. - QDL said it offers bit face shapes including Flat, Convex, Concave and Drop Center to match strata and borehole requirements. - The company said it has used concave bits with gauge-protection buttons and stabilizers in Middle Eastern and African deep-well and hot spring projects to improve hole straightness and diameter control. - QDL said optimized flushing grooves and air holes help clear cuttings faster and reduce secondary crushing. - The company said its DTH bits are organized into low-, medium- and high-air-pressure series. - QDL said its low-pressure series operates at 5–10 Bar and suits 0–30 meter shallow holes. - The company said its medium-pressure series operates at 10–15 Bar and improves efficiency by 20%–40% in 0–100 meter drilling. - QDL said its high-pressure series works to 500 meters deep and up to 1000 millimeters in diameter. - The company said the high-pressure line is compatible with DHD, COP, MISSION, QL, SD and NUMA standards, plus QDL’s QD series hammers. - QDL said its Diamond Enhanced DTH bits can extend service life by up to 500% compared with traditional alloy options in quartzite, granite and iron ore. - The company said annual export value exceeds $10 million and repeat purchase rate is above 97%. - QDL said its products are used in quarrying, open-pit blast holes, foundation engineering, anchoring, photovoltaic piling, geothermal drilling and water well drilling. - The company said its South African iron mine projects delivered a 15% drilling efficiency gain and a 30% life extension. - QDL said project work spans Southeast Asia, the Middle East and Africa, including Laos, Vietnam, Malaysia, Indonesia, Yemen, Saudi Arabia, Jordan, Morocco, Mauritania, Ivory Coast and South Africa.

Between the lines: - The release is framed as a cost-of-ownership argument, not a pure price comparison. - QDL is trying to shift buyer attention from unit price to uptime, fuel savings and bit longevity. - The emphasis on compatibility with major hammer standards suggests QDL is targeting overseas contractors that want easier adoption without changing their full drilling setup. - The repeated references to customization point to a broader market trend: contractors want bits tuned to rock type, depth and air pressure instead of one-size-fits-all tools.

What's next: - QDL is likely to keep pushing its DTH line toward deeper, harder and more specialized drilling jobs. - The company’s next growth path appears tied to export markets that value service life, compatibility and lower replacement frequency. - The release signals continued competition among DTH bit makers on efficiency and total operating cost rather than headline price alone.

The bottom line: - QDL is betting that better metallurgy, tighter machining and customized bit geometry will win buyers who care more about drilling reliability than upfront cost.