Carbon Steel Bar Tapered Drill Rods

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High-Strength Carbon Steel Tapered Drill Rods
Core Benefits: Exceptional Toughness, Efficient Energy Transfer, Engineered for Heavy-Duty Percussive Drilling.
Overview:
Carbon Steel Tapered Drill Rods are essential consumables for heavy-duty percussive drilling in demanding applications such as mining, quarrying, tunnel boring, and construction. Manufactured from premium high-carbon steel and subjected to precision heat treatment, these rods deliver outstanding hardness, impact resistance, and fatigue strength. The unique tapered design ensures rapid, reliable connection to drill bits or extension rods, enabling efficient power transmission for deep-hole drilling operations.

Key Features & Advantages:

1. Premium Material:
   Forged from high-grade carbon steel (e.g., Grade 55, 60), ensuring superior impact absorption and load-bearing capacity.
   High material purity and uniform microstructure minimize stress concentrations.
2. Precision Heat Treatment:
   Undergoes controlled quenching and tempering processes.
   High Surface Hardness: Achieves surface hardness (typically HRC 45-55+) for excellent wear resistance against abrasive rock, extending service life.
   Tough Core: Maintains a ductile core to absorb shock loads and prevent brittle fracture, ensuring reliability under extreme conditions.
3. Optimized Tapered Design:
   Precisely machined tapers (common angles: 7°, 11°, 12°) create a secure friction-fit connection with compatible bits or couplings.
   Fast Connection/Release: Enables quick, tool-free assembly and disassembly via impact, boosting operational efficiency.
   Efficient Energy Transfer: Maximizes impact energy delivery to the bit through tight conical contact, minimizing power loss.
   Superior Alignment: Promotes optimal drill string alignment, improving borehole accuracy and tool longevity.
4. Corrosion-Resistant Options:
   Available with protective coatings (e.g., copper plating, black oxide) to enhance rust resistance in wet or corrosive environments and reduce friction during handling.
5. Durability & Long Service Life:
   The synergy of high-quality steel and advanced processing delivers excellent fatigue, impact, and abrasion resistance.
   Reduces downtime and replacement costs caused by rod breakage, bending, or premature wear.
   Typical Applications:
   Surface & Underground Mining (Iron, Copper, Gold, etc.)
   Tunnel Excavation (Rail, Road, Hydro Projects)
   Large-Scale Quarrying & Dimension Stone Operations
   Foundation Engineering & Rock Anchoring
   Other Heavy-Duty Percussive Drilling Tasks
   Available Specifications:
   Diameter Range: Multiple standard sizes (e.g., Ø22mm, Ø25mm, Ø32mm, 38mm, 45mm).
   Length Range: Standard and custom lengths (e.g., 0.8m, 1.0m, 1.2m, 1.5m, 3m, 6m).
   Taper Standards: Compliant with major industry profiles (7°, 11°, 12°), ensuring compatibility with leading drilling equipment.
   Connection Type: Tapered ends (single or double ended), compatible with coupling sleeves.
   Why Choose Our Carbon Steel Tapered Drill Rods?
   Proven Reliability: Rigorous material selection and heat treatment guarantee consistent performance in harsh conditions.
   Extended Lifespan: The hardened surface/ductile core combination ensures longevity and lower total operating costs.
   Enhanced Productivity: Rapid rod changes and efficient energy transfer maximize drilling speed and output.
   Comprehensive Range: Solutions for diverse hole diameters, depths, and rig types.
   Quality Assured: Strict manufacturing controls ensure every rod meets high-performance standards.