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allie@hqmount.com
Solar Anchor Ground Screw – The Reliable Foundation for Solar Power Plants
Q235B / Q355 • HDG 80μm • Diameters 48–114mm • Lengths 1.6–3.5m • Customization Available
Key Features
- Foundation for Solar Plants
The primary foundation for photovoltaic ground mounting systems – fast, reliable, and cost-effective.
- Easy Installation
Driven into soil using a drilling machine. In hard rocky soil, pre-drill and pour concrete for secure fixing.
- Multiple Lengths
Fixed standard 1.6m small leaf; custom lengths 2m, 2.5m, 3m, 3.5m based on soil N-value and wind requirements.
- Multiple Diameters
Standard 76mm; also available 48mm, 60mm, 89mm, 114mm.
- Material Options
Q235B standard, Q355 on request.
- Surface Protection
Hot-dip galvanized (HDG) 80μm standard, 100μm on request – 25+ year service life.
- Customization
Flange size (180mm, 200mm, 220mm), head shape, leaf type, length – all customizable to your project.
- Types Available
With plate or without; small leaf or large leaf (for soft soils like sand, beach, landfill); adjustable for uneven terrain; U-shape head as requested.
Types by flange
Flange Top (with plate): Most common, widely used – features a pre-drilled flange for bolted connections
Tube Top (without plate): Symmetrically welded with 3 or 6 M12 bolts (M16 on request) at the top
Standard Flange Sizes (76mm Diameter)-180mm – 8mm thickness/ 200mm – 8mm thickness (most common, 8 radiating elongated holes – default option)/ 220mm – 10mm thickness
Types by Leaf / Helix
Small Leaf: 10mm width, 2mm thickness – market standard, most common
Large Leaf: Outer diameter 176mm, 200mm, 250mm – for soft soils like sand, beach, landfill, agricultural areas
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- Direct Manufacturer
Factory-direct pricing, full quality control, and fast delivery.
- Quality Assurance – Direct from HQ Mount
Raw Material Inspection: Certified Q235B / Q355 with mill test reports
Welding Quality: Helix blades welded with precision for consistent performance
HDG Coating Verification: Thickness testing (80μm average, minimum points checked with 3-point average)
Dimensional Inspection: Diameter, length, flange size, helix diameter all verified
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- Soil Suitability
Suitable soils: Clay soil, sandy soil
- Not suitable:
Permafrost / frozen soil: Cannot be used during freeze periods – seasonal construction required
Very low N-value soil: N=1 soils can still use ground screws, but the required quantity increases dramatically, making the cost prohibitive
Large rock / boulder areas: Not recommended. For areas with small rocks, alloy drill bits can be welded to the screw head
- Pull-Out Capacity
Pull-out capacity is evaluated on two levels:
1. Screw itself: The tensile strength of the screw – design values available upon request
2. Screw + soil interaction:
Small projects: Based on experience values
Medium projects: Calculated based on client-provided N-values
Large projects: Calculated selection + on-site pull-out testing required
Parameter
Specification
Material
Q235B (standard) / Q355 (on request)
Surface Treatment
Hot-dip galvanized (HDG) 80μm standard, 100μm on request
Service Life
25+ years (HDG 80μm meets Japanese standard HDZ55 – 550g/m² for 20-year lifespan in heavy industrial/coastal areas)
Diameter Options
48mm, 60mm, 76mm, 89mm, 114mm
Length Options
1.6m (standard small leaf), 2m, 2.5m, 3m, 3.5m (custom)
Flange Types
Flange Top (with plate) or Tube Top (without plate)
Flange Sizes (76mm)
180mm × 8mm, 200mm × 8mm, 220mm × 10mm
Leaf Types
Small leaf (10mm × 2mm) or Large leaf (176–250mm OD)
Standards
DIN EN ISO 1461, JIS C 8955:2017, AS/NZS 1170
Need Full Solar Power Plant Bracket With Ground Screw Details
Need Ground Screws for Your Solar Project?
Contact our engineering team – specify your diameter, length, soil type, and quantity.
info@hqmount.com | +86 180 3016 0771
www.hqmount.com
