Keywords: spiral pile, rigid inclusion piles, piling ground | Hot Dip Galvanized Spiral Pile For Steel Structure Foundation
Product page: Hot Dip Galvanized Spiral Pile
Industry Trends & Overview
Spiral pile technology—also called helical piles or screw piles—has become a critical innovation in deep foundation and ground improvement for modern construction, especially in demanding industries such as petrochemical, metallurgy, water supply & drainage, and energy. With the increasing demand for sustainable, efficient, and robust piling solutions, spiral pile adoption has grown by over 30% globally since 2018, according to Piling Industry Canada. Their non-disruptive installation, high load capacity, and versatile applications have given them a leading role in infrastructure projects.
Key market shifts include the transition towards rigid inclusion piles for ground improvement and reinforced support in soft soils, plus the integration of galvanized coatings and advanced manufacturing for better performance and lifespan. As construction codes (such as ISO 22477-10 and ANSI standards) grow stricter, products like Hot Dip Galvanized Spiral Pile are setting new benchmarks in safety and reliability.
Technical Parameters: Comparing Spiral Piles in the Industry
Below is a table of standard technical parameters for spiral pile, compared with traditional bored piles and rigid inclusion piles. Values are averaged from industry surveys and leading manufacturers:
| Specification | Spiral Pile | Rigid Inclusion Pile | Bored Pile |
|---|---|---|---|
| Diameter Range (mm) | 76–400 | 100–600 | 300–1800 |
| Length Range (m) | 2–15 | 2–24 | 2–50 |
| Material | Q235B, Q345B, SS400 (Galvanized) | Pre-cast Concrete/Steel | Reinforced Concrete |
| Ultimate Load Capacity (kN) | 120–2000 | 50–2000 | 200–6000 |
| Corrosion Resistance | Hot Dip Galvanized, up to 20–50 years | Medium, optional coatings | Variable, typically low |
| Installation Speed | Rapid (20–40 min/unit) | Medium (30–120 min/unit) | Slow (1–6 hrs/unit) |
| Ground Disturbance | Minimal | Moderate | Extensive |
| Cost (USD/unit) | 150–800 | 200–1000 | 300–2000 |
*Source: Manufacturer catalogs, Piling Industry Data 2023
Product Focus: Hot Dip Galvanized Spiral Pile
Hot Dip Galvanized Spiral Pile For Steel Structure Foundation is designed for high-strength, anti-corrosion foundation engineering. Manufactured by AOBANG METAL, it complies with international standards (ISO 1461, ANSI/AISC 360-16) and is widely used in industrial projects, highway foundations, solar and wind power base mounting, and urban utility infrastructure.
- Material: Q235B/Q345B/SS400 steel, hot dip galvanized
- Standard: ISO 1461, ASTM A123, ANSI/AISC 360-16, GB/T 912
- Pile Diameter: 76–400 mm
- Pile Length: 2–15 m (customizable)
- Surface: Hot dip galvanized, >75µm zinc coating, ≥20–50 year anticorrosion
- Mechanical Strength: Yield ≥ 235/345 MPa, Tensile ≥ 375/470 MPa
- Ultimate Load: Up to 2000 kN
Application: Steel structure bases, petrochemical pipelines, highway guardrail mounting, sewage/water plants, transmission tower foundations, oil and gas fields, solar/wind energy installations, coastal engineering.
Manufacturing Process: Spiral Pile Production Flow
- Material Preparation: High-quality steel plates (Q235B, Q345B, SS400) sourced and tested for uniformity and composition (compliant with ISO 630).
- CNC Profile Cutting: Automated CNC plasma machines cut plates into spiral blade and central shaft blanks with ±1mm tolerance.
- Spiral Bending & Welding: Helical shape formed with hydraulic jigs; spiral blade is precision-welded to shaft using submerged-arc welding, ensuring full-penetration seams—monitored under Non-Destructive Testing (NDT, per ISO 9712).
- Surface Pre-Treatment: Grit blasting (Sa2.5) for >95% surface purity, providing optimal zinc adhesion.
- Hot Dip Galvanizing: Full immersion in molten zinc at 450°C, forming ≥75µm coating thickness (per ISO 1461). Results in high corrosion resistance and self-healing zinc layer.
-
Quality Control & Testing: Each pile undergoes
- Ultrasonic weld inspection
- Galvanizing adhesion test (EN ISO 1461:2009)
- Bending & tensile testing (per ASTM A370)
- Dimensional and straightness check (max deviation ≤ 2mm/m length)
- Packing & Shipping: Anti-impact padding, markings, QC tag with traceability to batch/mill.
For animated process steps, refer to this video: Spiral Pile Manufacturing (YouTube)
- Galvanizing ensures lifespan: Coating performance tested per ISO/ASTM standards, >20-50 years in industrial soils.
- Welding quality: NDT and radiography guarantee full fusion, reducing risk of early fatigue.
Spiral Pile vs Rigid Inclusion Piles: Product Benchmark & Cost Analysis
| Hot Dip Galvanized Spiral Pile | Standard Rigid Inclusion Pile | Bored Pile (Concrete) | |
|---|---|---|---|
| Design Service Life | ≥ 50 yrs (coastal/alkali soils) | 25–40 yrs | 35–50 yrs |
| Installation | Fast, vibration-free (20–40min/unit) | Medium, semi-driven | Slow, heavy equipment (2–6 hr/unit) |
| Corrosion Resistance | Excellent (hot dip galvanized >75µm) | Fair | Poor to moderate |
| Eco Impact | Minimal disturbance | Moderate | High |
| Cost (USD/m, avg) | 40–90 | 50–125 | 105–210 |
| Customization | Full (size, length, finish, connection) | Partial | Minimal |
| Typical Applications | Steel/solar foundation, marine | Ground improvement, soft clay | Bridges, high-rises |
*Data from completed projects, supplier quotes 2022-2024.
Key Advantages in Typical Application Scenarios
- Superior corrosion resistance—hot dip galvanized spiral pile excels in aggressive soils, urban wastewater plants, and marine settings.
- Rapid, low-disruption installation—suitable for urban retrofits, modular construction, and remote energy sites (solar/wind farms).
- Custom engineering—adaptable geometry and finishes for unique load/soil demands; modular connectors for steel/wood/aluminum frames.
- Well-documented performance (per ISO/ANSI/FDA): Consistently high static/dynamic load tests, fatigue- & stress-resistant welds.
- Lifecycle economy: Reduced repair frequency and lower total cost of ownership vs. traditional bored piles (supported by LEED-certified project reports).
Case Study: Spiral Pile Success in Industrial Piling Ground
Location: Yangshan Deepwater Port Chemical Zone, China
Contractor: CNPC Engineering Division
Product: Hot Dip Galvanized Spiral Pile
Scope: Foundation retrofit, 580 spiral piles (Q235B, 108mm x 9m, hot dip galvanized, welded flange)
Outcome:
- Install speed: 32 min/ea (contractor reduced labor by 35%)
- Ground vibration:
- After 3 years, galvanizing test: No observable corroded spots; axial capacity (tested): >1800kN/pile
Highlights:
- Minimal concrete, faster installation – delivered 1200 units in 4 weeks (7% faster than rigid inclusion method)
- Ease of adjustment for uneven terrain
- Sustainability: 98% material recyclable, LEED platinum certification for project
Customization & Engineering Service Process
- Requirements Consultation: Soil report, structure drawing, local load standards (ISO/ASTM/BS), project timeline.
- Preliminary Design & Quotation: Drawing (AutoCAD/3D) and technical performance sheet within 48h.
- Production Sample & Testing: Batch manufacturing for prototype validation; full QA/QC report (chemical/mechanical/Galv thickness tests).
- Bulk Order Execution: Production cycle: typically 12–25 days (varies with batch size, customization).
- On-site Support & After-sales: Technical guidance for installation, 24/7 customer hotline, on-site training upon request.
- Warranty & Compliance: ≥10-year product warranty. Full compliance with CE/ISO1461/ANSI/GB/T.
Custom spiral pile project? Send us your requirements and our team will respond within 24h.
Frequently Asked Questions
A: Typically Q235B, Q345B, or SS400 structural steel, certified per ISO 630/GB standards, with hot dip galvanizing per ISO 1461 for enhanced durability against corrosion.
A: Standard external diameters: 76–400 mm; lengths can be customized from 2 up to 15 meters per pile. Thicker wall and flange designs available for higher loads or marine exposure.
A: Installation is compliant with ISO 22477-10, EN 1997-1, and ANSI/AISC 360-16 guidelines—ensuring accurate torque application, plumbness (
A: 100% of full-penetration welds undergo ultrasonic/radiographic NDT (ISO 9712). Random destructive testing is performed on batch samples.
A: For standard sizes: 10–15 days; for custom geometry or large engineering lots: 15–25 days after order confirmation and technical approval.
A: Yes, minimum 10-year warranty against corrosion and material defects. 24/7 customer support with technical assistance, plus global on-site support.
A: Yes. Especially effective for medium/hard clays, sandy, wet, corrosive, and coastal soils. Their helical design resists uplift, lateral movement, and provides excellent load transfer—even in aggressive environments.
Delivery Cycle & Quality Assurance
- Standard production cycle: 12–25 working days (depending on batch and specs)
- Strict QA at every stage: chemical, mechanical, geometric testing per ISO/GB norms
- Galvanizing thickness, weld, and NDT test reports supplied with each shipment
- Full traceability from steel mill to finished pile
- Global shipment with custom packaging for maritime/road/rail transit
- Flexible logistics support for urgent projects
Authoritativeness: Certifications & Company Strength
- ISO 9001:2015 Quality Management System
- ISO 1461 Hot Dip Galvanizing Compliance
- GB/T 912 Steel industry standard
- ANSI/AISC 360-16 Structural Certification
- Verified partners: PetroChina, State Grid Corporation, ABB, China Road & Bridge Group
Industry references: Frequently cited in Deep Foundations Magazine and Structurae Engineering Forums.
Conclusion: Spiral Pile—Future-proof Foundation for Modern Engineering
The adoption of spiral pile—especially high-performance, hot dip galvanized variants—profoundly elevates project efficiency, safety, and longevity in modern construction. Its unique blend of rapid installation, customizable design, and stellar anti-corrosion properties ensure Hot Dip Galvanized Spiral Pile a prominent role in infrastructure, renewable energy, and industrial sectors. Backed by ISO/ANSI standards, rigorous test data, and successful deployments worldwide, it is the premier solution for next-generation piling ground demands.
- Deep Foundations Institute, "Spiral Pile Design & Testing in Industrial Structures," www.dfi.org
- Structurae Engineering Forums, "Comparative Analysis: Rigid Inclusion Piles vs. Helical Piles," forums.structurae.net
- Piling Industry Canada, "Global Trends in Piling Technology 2023", pilingindustrycanada.com
- ISO 1461, "Hot Dip Galvanized Coatings on Fabricated Iron and Steel Articles – Specifications and Test Methods", iso.org
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