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Hot Dip Galvanized Spiral Pile Ground Screw Piles HDG Solar Ground Screw
Solar Ground Screw Piles - An innovative foundation system specifically engineered for photovoltaic power stations, providing stable, efficient, and environmentally friendly support for solar panel arrays. Requires no concrete, enables direct installation, and significantly reduces project timelines.
No excavation, no concrete pouring, no curing time required
Installation is up to 70% faster than traditional foundations
Immediate load-bearing capacity; mount solar structures right after installation
Suitable for various weather conditions
Manufactured from high-strength steel (Q235B/Q355B)
Precisely engineered helix plates for optimal soil grip
Maximum pull-out resistance: 25-60kN (model dependent)
Adaptable to various soil conditions: sand, clay, backfill
Zero concrete usage, reduces carbon footprint
Removable and reusable, allows for easy land restoration
Significantly lowers transportation and labor costs
No construction waste, aligns with green building standards
Hot-dip galvanized treatment (zinc coating ≥85μm)
Excellent corrosion resistance, service life exceeds 25 years
Monolithic design, no welded weak points
Certified to ISO 1461, ASTM A123 standards
| Model | Pipe Diameter (mm) | Helix Diameter (mm) | Length Range (m) | Thickness (mm) | Recommended Load (kN) |
|---|---|---|---|---|---|
| SGP-76 | 76 | 200-250 | 1.0-2.5 | 3.0 | ≤25 |
| SGP-89 | 89 | 250-300 | 1.2-3.0 | 3.5 | ≤40 |
| SGP-114 | 114 | 300-350 | 1.5-3.5 | 4.0 | ≤60 |
| *Custom | *Customizable | *Customizable | *Customizable | *Customizable | *Per Design |
Computer-optimized helix pitch and diameter for maximum stability
Single or double helix options for different load requirements
Laser-cut precision ensures consistent performance
Complete hot-dip galvanizing after manufacturing (inside and outside)
Optional powder coating available for enhanced aesthetics and protection
Suitable for coastal, industrial, and high-humidity environments
Compatible with most international solar racking systems (Unirac, Schletter, etc.)
U-head, flat plate, or custom bracket options
Pre-drilled holes for quick and secure bolt-on assembly
Site Survey & Layout: Mark pile positions per design.
Drive Piles: Use hydraulic drive heads (handheld or excavator-mounted) to screw piles to specified depth/torque.
Trim & Attach: Level piles if necessary and attach mounting brackets.
Install Racking: Proceed immediately with solar module structure installation.
Proven Performance: Used in 500+ MW of solar projects globally.
Engineering Support: Free technical consultation and preliminary design.
Complete Solution: We supply piles, mounting heads, and installation tools.
Competitive Pricing: Direct factory price with no middleman markup.
Reliable Supply: Large production capacity ensures on-time delivery.
Q1: What are the main advantages of screw piles over concrete foundations?
A: Screw piles offer faster installation (no curing time), lower labor and equipment costs, minimal site disturbance, year-round installation capability, and are fully removable/reusable. They are generally more cost-effective for most soil conditions.
Q2: What soil types are suitable for your screw piles?
A: Our piles are designed to perform well in a variety of soils, including sand, silt, clay, and loam. For very rocky ground or solid bedrock, a pre-drilling assessment is recommended. We provide free technical consultation based on your soil report.
Q3: What is the typical lifespan of your galvanized screw piles?
A: With our standard hot-dip galvanizing (85μm minimum), the piles have a corrosion resistance life of 25+ years in most environments, perfectly matching the lifespan of PV panels. For highly corrosive environments (coastal, industrial), we offer enhanced coating options.
Q4: Can you customize the length, diameter, and helix design?
A: Yes, absolutely. We specialize in custom manufacturing. We can adjust the pipe diameter (60mm to 170mm), wall thickness, length, number of helices, and helix diameter based on your project's specific geotechnical report and engineering load requirements.
Q5: Are your piles compatible with major solar racking brands?
A: Yes. Our standard and custom mounting heads (U-heads, flat plates) are designed to be compatible with most international and local racking systems such as Unirac, Schletter, Clenergy, K2, and PVH. Please provide your racking system details for confirmation.
Q6: What equipment is needed for installation?
A: For small-scale projects, handheld hydraulic drive units are sufficient. For large-scale farms, we recommend excavator or skid-steer mounted drive heads for efficiency. We can provide equipment recommendations and connection details.
Q7: What is the installation depth and how is it determined?
A: Installation depth depends on soil bearing capacity, frost line depth, and structural load requirements. Typically, depths range from 1.2m to 3.0m. Our engineers can provide a recommended depth/torque specification based on your soil data.
Q8: How do you ensure consistent installation quality on site?
A: We recommend using a hydraulic drive head with a torque monitor. Installation to a pre-defined torque value (kN·m) is the key quality control method, ensuring consistent load-bearing capacity for each pile. We provide torque-depth guidelines.
Q9: What is your standard packaging for export?
A: Piles are bundled tightly with steel straps on wooden skids. The ends are protected with plastic caps. Mounting heads are packed in carton boxes or wooden crates. Packaging is robust for long-distance ocean freight. Custom packaging is available.
Q10: What are your lead time and payment terms?
A: Standard products: 15-20 days after deposit. Custom products: 20-30 days after final approval.
Standard Payment Terms: 30% T/T deposit, 70% balance against copy of B/L. L/C is also acceptable for large orders.
Q11: How do we start an order or get a quote?
A: Simply contact us via email or our website and provide:
Project location and approximate quantity.
Preferred pile specifications or your project's geotechnical report & structural drawings (if available).
Target timeline.
We will provide a detailed quotation and technical proposal within 24 hours.
Quality First,Price Best,Service Foremost!
We assure you of our best services at all times !
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