Precision engineered threaded button bit with optimal flushing configuration for mining and tunnelling operations.
Ultra-rugged tungsten carbide tips optimized for maximum shear penetration in underground seam extraction.
Featuring a retrac skirt configuration to maintain straightness in variable hardness profiles and complex geology.
High wind pressure down-the-hole hammer providing maximum kinetic energy transmission and penetration rate.
Heavy duty impactor fitted with mechanical foot valves for clean bore flushing and high-frequency percussions.
Hand-held demolition pneumatic pick designed for concrete splitting, soft rock excavation, and trenching.
Standard tapered drill bits engineered with premium carbide inserts for hand-held rock drilling equipment.
Forged hex drill rods with customized taper connections optimized for durability and high fatigue limits.
The global infrastructure boom and the transition towards deeper mineral extraction have significantly elevated performance parameters for rock drilling consumables. Modern hammer drill bits and impact tools must endure extreme stress, high thermal loads, and highly abrasive formations. Current engineering trends emphasize metallurgical refinement—particularly the pairing of micro-alloyed steel shafts with ultra-coarse tungsten carbide (WC) buttons. The integration of advanced surface treatments, such as computerized gas carburization, has yielded up to a 35% increase in fatigue life compared to legacy manufacturing techniques.
Furthermore, structural optimization via computer-aided modeling has transformed drill bit configurations. The shift from standard spherical buttons to ballistic and parabolic profiles allows for optimized penetration dynamics. These modern geometries deliver rock fracture propagation with reduced impact losses. At the same time, specialized "Retrac" and "Drop Center" skirts assist in maintaining vertical borehole consistency in highly stratified, fractured formations. Choosing the correct structural configuration is no longer a matter of general choice, but a precise decision based on rock hardness, drilling pressure, and geology.
We have more than 40 years of drilling tool manufacturing experience. All this expertise is built into all our rock drilling tools - for your benefit.
We look for outstanding performance in all our products and services. Ultimately, that means excellent hole quality and low-cost drilling for you.
We are one of the professional rock drilling tool manufacturers in China. Our state-of-the-art products will also give you a leading edge.
We offer you tophammer equipment and DTH equipment for every application, such as underground mining and tunneling, surface mining, well drilling and quarries, and road and construction.
Procuring rock drilling consumables from Chinese manufacturers requires understanding structural pricing and quality validation. The market presents a wide spread of factory quotes, but total cost of ownership (TCO) is determined by *cost-per-meter* rather than initial purchase price. Enterprise buyers should look beyond basic catalogs to evaluate raw material grades and manufacturing processes. Reliable industrial suppliers operate under strict ISO 9001 frameworks and utilize certified alloy steel chemistries.
| Thread/Taper Type | Standard Diameters | Application Environment | Recommended Formation |
|---|---|---|---|
| Tapered (7°, 11°, 12°) | 32mm - 45mm | Hand-held air-leg drilling (YT28/YT29A) | Soft to medium-hard rock formations |
| Threaded R32 / SR28 | 43mm - 76mm | Light hydraulic top-hammer rigs | Consolidated mining & quarrying |
| Threaded T38 / T51 | 64mm - 127mm | Heavy-duty production drilling rigs | Hard, abrasive, jointed formations |
| DTH Impactor (DHD340/Cop44) | 110mm - 254mm | Deep blast hole, water well, geothermal | Variable geology, deep unconsolidated strata |
SHANDONG KAT DRILLING TOOLS is one of the most professional manufacturers of Rock drilling Tools in China. In terms of overall strength, it takes the lead among enterprises of the same industry in China. The company mainly produces over 500 kinds of products such as rock drilling tools, mining tools and drilling tools.
With decades of focused engineering, we have consistently developed solutions that maximize rig productivity, minimize downtime, and withstand the harshest job site environments across global mining, tunneling, and construction sites.
In modern excavation and mine development, tool selection requires matching the entire system—from compressed air source to the cutting face. A bottleneck in any component can reduce efficiency across the entire operation. For instance, using heavy-duty DTH drilling hammers without an appropriately rated screw air compressor will lead to incomplete hole cleaning. The resulting regrinding of chips increases wear on both the hammer body and the tungsten carbide buttons.
By offering integrated packages—ranging from small scale hand-held air-leg drills like the YT28 / YT29A to high-power hydraulic rig couplings and diesel engines (like the Kubota V1505-T)—we provide comprehensive system matching. This integrated approach ensures consistent energy transmission efficiency, lower fuel consumption per drilled meter, and minimized vibrational stress on critical hydraulic carrier heads.
As drilling automation advances, our R&D roadmap focuses on three main developments:
Meeting the supply chain compliance standards of multinational mining companies requires rigorous, documented quality control systems. Our facilities adhere to ISO 9001, ISO 14001, and ISO 45001 standards to ensure production safety and consistency.
Our global supply chain logistics feature customs clearance support, complete material traceability certifications (ASTM/DIN), and specialized packaging design to protect thread coatings during maritime transit. Our field technicians are also available to support onsite trials and assist with wear analysis to optimize drilling parameters.
Taper angle selection is primarily determined by rock hardness and machine impact power. A 7-degree taper is commonly used in softer or medium formations with lighter-weight rock drills. An 11 or 12-degree taper is recommended for heavy-duty, high-impact air-leg rock drills (like the YT28 and YT29A) working in hard, abrasive rock, as it provides a more secure connection that resists slippage.
Premature carbide failure typically results from either thermal fatigue due to insufficient flushing, or micro-cracking caused by over-drilling (which creates a flat profile on the buttons). Regular inspection and grinding of the buttons to restore their hemispherical or ballistic profile, combined with maintaining proper flushing air or water pressure, can extend wear life.
The shank adapter transmits high-frequency percussive force from the rig's piston directly to the drill string. If the adapter's hardness profile or alignment is out of tolerance, it can reflect damaging shock waves back into the hydraulic drifter. This acceleration of internal component wear can lead to costly motor and seal maintenance. Using high-quality shank adapters protects your drilling equipment investment.
Hammers with mechanical foot valves (like the DHD340 with Cop44 foot valves) regulate exhaust airflow to help clear chips from the bottom of the hole. While foot valves improve flushing efficiency, they are subject to wear and breakage under high vibration. Valve-less DTH hammers feature simpler internal designs that reduce the risk of structural failure, though they may require higher air pressures to maintain the same cleaning velocity.
Yes. As a direct manufacturer, we offer custom bit configurations to match specific geology. Options include drop-center profiles for better hole deviation control, retrac skirts for cleaning fractured rock, and specialized tungsten carbide button sizes or counts to balance penetration rates and tool life.
Engineered for long-hole drilling in underground production and large-scale surface quarry benching.
Industry-standard air-leg rock drills offering high percussive frequency and low air consumption.
Manufactured from hollow drill steel to ensure optimal flushing flow and high fatigue resistance.
Features premium diamond matrix bands to maintain consistent borehole diameter in core drilling.
Engineered for handheld percussive rigs operating in tunnels, quarries, and construction sites.
High-strength threaded button bits designed for small-bore tunneling and mining operations.
Available in both ballistic and spherical button configurations to match specific rock formations.
Precision hardened striking bar designed to handle high blow frequencies from hydraulic hammers.
KAT DRILLING