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Luoyang Jinlu PDC Centerless Drill Bit: Solving the Challenge of Drilling Efficiency in Medium-Hard Rock Formations

2026-09-07

Luoyang Jinlu PDC Centerless Drill Bit: Solving the Challenge of Drilling Efficiency in Medium-Hard Rock Formations

In geotechnical engineering operations, the efficiency and cost of drilling directly impact the progress of the entire project. Particularly in medium‑hard rock formations, conventional drill bits often suffer from slow penetration rates and short service lives. To address these challenges, Luoyang Jinlu has introduced its PDC coreless drill bit, which, thanks to a suite of proprietary technological advantages, has become an ideal solution for enhancing the overall performance of drilling operations.

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Luoyang Jinlu hardfacing wear-resistant plates extend the service life of vibratory ore-discharging machines by several times.

2026-09-04

Luoyang Jinlu hardfacing wear-resistant plates extend the service life of vibratory ore-discharging machines by several times.

Recently, Luoyang Jinlu Cemented Carbide Tools Co., Ltd. (hereinafter referred to as “Luoyang Jinlu”) completed an on-site comparative test of its hardfacing wear‑resistant plates (CCO PLATE) at a major molybdenum mining company in Henan Province. The test results show that Luoyang Jinlu’s 10+6 hardfacing wear‑resistant plate, under the operating conditions of a vibrating ore‑discharge machine in hard‑rock molybdenum mines (F14–F16), achieves a service life of 5–6 months—2.5 to 3 times that of comparable products, which typically last about 2 months. This outstanding overall performance delivers significant cost reductions and efficiency gains for customers.

Advantages and Applications of Post‑Processing Techniques for Alloy Column Tooth Surfaces

2026-08-17

Advantages and Applications of Post‑Processing Techniques for Alloy Column Tooth Surfaces

I. During drilling in highly hard (rock hardness coefficient F14–16) and highly abrasive formations, the carbide teeth of down-the-hole drill bits are subjected to intense impact and cutting‑friction against the tough rock. Conventional manufacturing processes often result in carbide teeth with poor surface stress states, insufficient surface densification, and reduced toughness. Under sustained loading, microcracks propagate rapidly, leading to premature failure modes such as tooth chipping, fracture, and excessive wear, ultimately rendering the drill bit unusable. Frequent replacement of drill bits not only significantly increases mining consumables costs but also severely disrupts continuous production operations.

Introduction and Applications of Tunneling Drill Rods

2026-08-10

Introduction and Applications of Tunneling Drill Rods

Rock‑drilling tools include drill bits, drill rods, and drill shanks, and are used to bore blast holes in rock. The drill rod serves as the link between the drill shank and the drill bit, transmitting the impact energy and rotational torque required for rock drilling.

As solid as a shield, operating with peak efficiency: A “hardcore” solution for repairing the roll surfaces of high-pressure roller mills.

2026-08-05

As solid as a shield, operating with peak efficiency: A “hardcore” solution for repairing the roll surfaces of high-pressure roller mills.

In the fields of bulk material comminution and mineral processing, the high-pressure grinding roll (HPGR) is undoubtedly the “heart” of enhancing material‑crushing efficiency. However, when dealing with highly hard, strongly abrasive ores, the severe wear of the roll‑face liners has long been a persistent technical challenge for major mining companies. Frequent shutdowns for maintenance not only erode production profitability but also drive up operating costs.

“Still Majestic, Still Steadfast in Spirit”—Luoyang Jinlu Holds a Special Event to Celebrate “August 1st” and Honor Veterans

2026-08-01

“Still Majestic, Still Steadfast in Spirit”—Luoyang Jinlu Holds a Special Event to Celebrate “August 1st” and Honor Veterans

To warmly celebrate the 99th anniversary of the founding of the Chinese People’s Liberation Army, carry forward the fine tradition of supporting the military and honoring their families, and inspire veteran employees to remain true to their original aspirations and achieve outstanding results in their posts, on the afternoon of July 31, Luoyang Jinlu organized a themed event marking “August 1” for its veteran employees, under the theme “Still Steadfast Through the Years, Hearts of Soldiers Unchanged.” Twenty-three veteran employees from various departments gathered together to reminisce about their military service and discuss the company’s development.

Jinlu Asphalt Multi‑Purpose Cutter – A Must‑Have Tool for Asphalt Road Repair

2026-07-30

Jinlu Asphalt Multi‑Purpose Cutter – A Must‑Have Tool for Asphalt Road Repair

As China’s demand for road infrastructure maintenance continues to grow, urban road reconstruction, highway upkeep, and pavement cold recycling are placing increasingly stringent requirements on the efficiency, precision, and cost-effectiveness of milling operations. When dealing with high‑hardness asphalt mixtures and complex working conditions, operators often encounter challenges such as rapid tool wear and frequent component replacements.

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