1. Exclusive High Pressure Adaptation for Large Deep-Hole Hard Rock
Precisely adapted to 1.05-1.25MPa high-power high-pressure air compressors, it is professionally designed for high-difficulty heavy-load scenarios such as large mine ultra-hard rock, deep-hole drilling and large-diameter pile foundations. It completely solves the pain points of insufficient aperture, deep-hole power attenuation and poor large slag discharge of 3-inch hammers. Perfectly matching the high-pressure complete equipment of large mines and heavy infrastructure, it can be directly used for heavy-load operation without equipment modification, acting as a special mainstream tool for large-diameter, deep-hole and hard rock heavy-duty projects.
2. Extended Stroke Heavy Piston & Stable Deep-Hole Power
The upgraded industry-leading extended-stroke heavy-duty piston structure greatly increases the effective impact stroke and single impact energy reserve with lossless concentrated force transmission. It maintains strong impact power in tens of meters deep holes without insufficient drilling power, slow progress or slipping, perfectly adapting to deep well hard rock drilling. With a stable 16.5Hz high-frequency impact, it ensures uniform and efficient large-diameter rock breaking. Compared with conventional 4-inch hammers, it significantly improves deep-hole construction efficiency and shortens the construction period of large mine blasting projects.
3. Large-Flow Central Slag Discharge & Zero Blockage in Large Aperture
Customized large-flow central exhaust system for 4-inch large-diameter drilling features larger high-pressure air displacement and faster jet speed, which instantly removes large-volume hard rock debris, gravel and dust. It completely eliminates common deep-hole faults such as slag accumulation, secondary crushing, jamming and hole collapse. The smooth and flat hole wall ensures standard forming specifications without secondary manual repair, fully meeting the high-precision forming requirements of mine deep-hole blasting and large-scale pile foundation projects and greatly reducing heavy-load construction failure rate.
4. Military-Grade Forging Process & Ultra-Long Fatigue Resistance
The whole hammer is integrally forged from military-grade ultra-high-strength alloy steel, eliminating the defects of loose structure, air holes and easy cracking of traditional casting technology. Combined with multiple high-temperature quenching and tempering heavy-duty reinforcement treatments, the body has uniform hardness, excellent toughness and strong impact and fatigue resistance. It resists long-term high-frequency deep-hole heavy-load impact, severe friction of large gravel and erosion of humid and complex underground environments without deformation, air leakage, wear or cracking. Internal precision accessories feature accurate matching gaps and smooth stable pneumatic transmission with extremely low failure rate, enjoying far longer service life than ordinary 4-inch hammers and adapting to year-round uninterrupted mine production.
5. Standard Large-Size Universal Design & Lossless Quick Replacement
Manufactured in strict accordance with international general standards for 4-inch high-pressure DTH hammers, all outer diameter, connecting thread, air channel and installation dimensions are fully standardized, 100% compatible with all brands of 4-inch high-pressure drilling rigs and 110-130mm full-series large-diameter high-pressure drill bits on the market. Old 4-inch hammers with weak deep-hole power, slow large-diameter drilling, frequent blockage, air leakage and fatigue aging can be directly replaced without air pressure debugging and equipment modification, plug and play, suitable for batch maintenance of large mines, old equipment renovation and high-end foreign trade equipment supporting.
6. Heavy-Duty High Efficiency & Low Comprehensive Project Cost
Scientifically matched air consumption for large-diameter deep-hole working conditions realizes efficient utilization of wind pressure energy without invalid energy waste, adapting to stable output of large air compressors. It features stable heavy-load operation, ultra-low failure rate, long maintenance cycle and low consumable loss, greatly reducing equipment downtime maintenance time and replacement cost. For batch deep-hole construction of large mines, it delivers higher construction efficiency and lower comprehensive operation cost, becoming a flagship drilling tool with balanced performance and cost performance for heavy-duty large-diameter projects.
