Long Spiral Auger Drill Rod | Heavy Duty Foundation Piling Auger Bit For Construction

High Wear Resistant Alloy Structure (Material & Performance Data)

• Material: Central pipe made of Q345 high-strength carbon steel with a tensile strength of ≥470 MPa, ensuring structural stability under high torque loads. Spiral flights are reinforced with hardened alloy strips containing tungsten and chromium elements, achieving a surface hardness of HRC 58-62, significantly extending service life in abrasive soils and soft rock.
• Front Bit: Multi-tooth rock-breaking drill tip with carbide inserts, suitable for breaking strata with compressive strength ≤5 MPa, reducing wear rate by 35% compared to standard bits.
• Anti-Bending & Anti-Fracture: Forged connectors made of 35CrMo alloy steel with heat treatment, withstanding torque up to 50,000 N·m, preventing deformation even at drilling depths up to 30m.
  • Global Compatibility: Widely used in civil foundation construction, photovoltaic power station pile engineering, road/bridge foundation reinforcement, and underground infrastructure drilling in North America, Southeast Asia, the Middle East, Africa, and Europe.
  • Geological Adaptability: Optimized for clay, sand, gravel, and weathered soft rock layers. The continuous large-pitch spiral design increases soil discharge efficiency by 40%, making it ideal for high-moisture clay in Southeast Asia and dry, loose sand in the Middle East.
  • Drilling Efficiency: Matches mainstream long spiral piling rigs and rotary drilling machines worldwide, with a drilling speed of 0.5-1.5 m/min, completing a 20m deep borehole in 15-40 minutes depending on soil conditions.

• Customizable Specifications:
  • Diameter Range: 300mm to 1500mm (common sizes: 400/500/600/800mm)
  • Length Range: 3m to 30m (segmented design for easy transport)
  • Flight Pitch: 150mm to 350mm, adjustable based on soil type (larger pitch for sandy soil, smaller for clay)
• Localized Supply: Stable warehouse stock in major construction hubs (e.g., Dubai, Houston, Singapore), with a logistics cycle of 7-15 days to regional ports, meeting tight construction schedules. OEM/ODM services available for custom geological conditions.

• Wear Resistance: Hard facing strips on flight edges reduce wear by 50% compared to standard welded flights, with a service life of 1000-3000 working hours (depending on strata).
• Maintenance Cost: Modular design allows replacement of individual drill tips or flight sections instead of the entire rod, cutting maintenance costs by 60% compared to single-piece augers.
• Cost Efficiency: Reduced downtime from fewer replacements leads to a 25% increase in project productivity for civil engineering contractors.