QDL pitches durable drill rods for Sandvik and Epiroc rigs

QDL says its integral DTH drill rods are built for Sandvik and Epiroc drilling rigs, with compatibility across major thread standards and use cases in mining, quarrying and water well projects. The company highlights upgraded alloys, nitriding and friction welding as key to reducing downtime and total cost of ownership.

Why it matters: - QDL is targeting operators that need drill rods to withstand high-frequency impact, high torque and long duty cycles. - The company frames durability and compatibility as direct drivers of lower downtime, fewer stuck rods and lower total cost of ownership. - The product line is aimed at mining, quarrying, water well, geothermal and infrastructure drilling across multiple regions.

What happened: - Putian, Fujian-based Putian Qideli Engineering Equipment Co., Ltd. presented its integral DTH drill rods as compatible with Sandvik and Epiroc drilling rigs. - The company said its drill rod system covers low-pressure DTH, high-pressure DTH, rotary tricone and large-scale engineering drilling. - QDL listed a diameter range from 42 mm to 64 mm for low-pressure tools, 76 mm to 127 mm for DTH and tricone tools, and up to 305 mm for large-bore foundation pile rods. - QDL said it customizes wall thicknesses at 6.3 mm, 7.0 mm, 8.0 mm, 9.5 mm and 10.0 mm to match rig torque and field budgets. - The company said it has been based in Putian, Fujian, with a history dating to 1993 and specialized drill rod production starting in 2009. - QDL said annual export volume exceeds 15,000 rods and annual export value exceeds USD 10 million.

The details: - QDL said it selects from material grades including DZ40, DZ50, R780, G105 and S135. - The company said it uses an upgraded R780 alloy co-developed with partner steel mills. - QDL said the design approach uses a “hard-shell, tough-core” structure to resist brittle fracture under changing geology. - The rod joints are made from 42CrMo alloy steel, quenched and tempered through CNC machining, and treated with nitriding. - QDL said the joints are friction welded after upsetting the joint ends to enlarge the weld area. - The company said it uses X-ray and magnetic particle testing on the assembly line, along with ultrasonic testing and dimensional verification before shipment. - QDL said its thread compatibility covers API standards and profiles including REG, IF, BECO, CUBEX, NC, Russian Z-series, T-threads and DIBH. - The company said precision CNC thread profiling is intended to prevent cross-threading and achieve mechanical matching with Sandvik, Epiroc and other platforms. - QDL said advanced nitriding increases thread surface hardness. - The company said specialized desulfurization cleansing is used on ultra-high-strength steel pipes such as S135 to improve steel purity and fatigue resistance.

Between the lines: - QDL is positioning metallurgy and process control as the main differentiators, not just basic size or thread fit. - The emphasis on fatigue life, corrosion resistance and thread protection suggests the company is selling reliability as a cost-saving feature for high-utilization fleets. - The claim of a below-1% defect feedback rate and a 97%+ repeat purchase rate signals a business built around recurring industrial buyers, though those figures are company-reported. - The focus on cross-brand compatibility reflects a market where operators want to mix tooling with major rig platforms without redesigning the drill string. - The case studies show QDL using custom metallurgy and wall-thickness changes to solve bending, galling and broken-joint problems rather than forcing customers to upsize equipment.

What's next: - QDL said its sales network spans more than 50 countries, including Russia, Ukraine, Kazakhstan, Saudi Arabia, Yemen, South Africa, Morocco, Ivory Coast, Algeria, Australia, Brazil, Vietnam, Indonesia, Malaysia and the Philippines. - The company is likely to keep leaning on customization, export scale and field performance as automated and higher-output drilling increases demand for more durable drill rods. - More information and product catalogs are available on the company's website.

The bottom line: - QDL is selling drill rods as a durability and compatibility upgrade for global rig operators, with manufacturing, material choice and field case studies all aimed at proving lower downtime and longer service life.