Quality control:
     *We have specialized QC testers to check the quality of the products according to different customers'
     requirement. Usually, it's random inspection, and we also offer 100% inspection at a reasonable price
     if required.
     *We have IQC to check the dimensions and surface of the incoming material
     *We have PQC to inspect full-course during the manufacturing processing
     *We have FQC to inspect all the anodizing/plating and other finishes' products from our supplier and
     proceed with the professional quality and appearance inspection before shipping.


The first piece of the helical pile is called the lead; this is the piece that is first rotated into the ground. The lead has multiple helical blades, also referred to as helical bearing plates, that can vary in size, shape, and number. After the lead follows any number of extensions, depending on the required torque or depth. These are simply shafts that are bolted and pinned to the lead and to each other at their ends. The top of the pile is the incorporated into the foundation system via a bracket or other connection method.

Helical Piles are used worldwide to secure residential and commercial buildings, tower foundations, heavy equipment foundations, and many other deep foundation system applications.

The shaft can come in either a circular or a square cross section shape and is typically hollow.
 

Helical anchor system may be used to reestablish new foundations or restore present ones. Helical foundation anchors are used for lighthouses, roads, railroads, telecommunication, and in a lot of different businesses that need rapid installation or structure near to present constructions. Evidence, maintaining structures, other common places make use of because they are appropriate for compression in addition to tensile loads.
 

  Shipping way:
    1) 0-100kg: express&air freight priority,
    2) >100kg: sea freight priority,
    3) As per customized specifications


    Packing & Delivery:
    1.Packing Detail: The product packed in bag, carton, wood case, pallet or as per the customer's
    special requirements. Besides, the custom package takes a week to prepare in advance.
    2.Delivery Detail: the fast International Shipping time takes 3 ~5 working days by DHL/UPS/FedEx,
    slow shipping time takes 7~ 8 working days by DHL/UPS/FedEx/TNT, etc.

1. What is a Solar Mounting Ground Screw?
A Solar Mounting Ground Screw is a helical steel pile used as a fast, low-impact foundation for ground-mounted solar panel arrays. It consists of a central steel shaft with helical plates (flights) welded along its length. It is installed by rotating it into the ground, displacing soil rather than removing it, creating a secure and immediate-load-bearing foundation.

2. What are the main advantages over traditional concrete foundations?
Speed: Installation is 3-5x faster, drastically reducing project timelines.

Low Environmental Impact: No excavation, no curing time, no water needed. Minimal site disturbance.

Immediate Load Capacity: Panels can be mounted immediately after installation.

Removability & Reusability: Can be unscrewed at end-of-project life, allowing land restoration.

All-Season Installation: Can be installed in most weather conditions, including frozen ground (with proper equipment).

Lower Total Installed Cost: Reduces labor, equipment, and material costs.

3. What types of ground screws do you manufacture?
We offer a comprehensive range for various soil conditions and project sizes:

Small-Diameter Screws (e.g., 76mm/3" shaft): For residential and light commercial C&I projects.

Large-Diameter Screws (e.g., 114mm/4.5", 140mm/5.5" shaft): For utility-scale solar farms.

Single-Helix vs. Multi-Helix: For different load and soil requirements.

Rock Tip / Punch Tip Screws: For penetrating harder surfaces or rocky soils.

Custom Extensions & Couplers: To reach required depth.

Complete Kits: Including mounting heads (top hats), brackets, and hardware.

4. How do I determine the correct size, length, and helix configuration?
Selection is based on a site-specific geotechnical assessment considering:

Soil Type & Stratigraphy (sand, clay, silt, presence of rock).

Required Pull-Out/Uplift Capacity (determined by wind/snow loads on the array).

Compression/Vertical Load (weight of structure).

Torque-Capacity Correlation: Installation torque is directly measured to verify design load capacity in the field.
We strongly recommend a professional site evaluation. Our engineers can provide design support based on your soil report.

5. What materials and coatings are used for durability?
We use high-quality, corrosion-protected materials:

Shaft & Helices: High-strength low-carbon steel (Q235B, S235JR) or high-strength steel (Q355B, S355JR).

Surface Protection: Hot-Dip Galvanizing (HDG) to ASTM A123 (standard, ≥85µm coating) is standard. Galvanizing + Powder Coating is available for enhanced aesthetics and protection in highly corrosive soils.

Welds: Continuous, full-penetration welds, galvanized after welding.

6. What installation equipment is required?
Installation requires hydraulic drive equipment (typically mounted on a mini-excavator or skid steer):

Torque Motors: Provide the rotational force. We can recommend torque requirements for our products.

Drive Heads: Attach to the top of the screw.

Extensions: To reach desired depth.
We work with a network of installation partners and can provide equipment recommendations or connections.

7. Can ground screws be used in all soil types?
They are suitable for most soil conditions, but design must be adapted:

Optimal: Sand, silt, clay, loam.

Challenging but Feasible: Dense clay, gravel, weak rock (using specialized tips/rock points).

Not Recommended: Solid bedrock, very loose sand, or soils with large boulders without prior investigation.
A pre-installation test screw is always recommended on new sites.

8. What is the typical load capacity?
Capacity varies dramatically with size and soil. Example ranges:

Small Screws (76mm shaft): 10 - 40 kN (1 - 4 metric tons) uplift capacity.

Large Screws (114mm+ shaft): 30 - 150+ kN (3 - 15+ metric tons) uplift capacity.
We provide engineered load tables based on soil parameters. Field verification via torque-to-capacity correlation is standard practice.

9. How do I request a quote or technical consultation?
For an accurate proposal, please provide:

Project Location & Site Conditions (basic soil info if available).

Solar Array Layout (number of piles, row spacing).

Design Loads (uplift/compression) or Panel & Racking System Model.

Target Quantity & Project Timeline.

10. What is your MOQ and lead time?
Standard Products: MOQ 500 pieces; Lead time 20-30 days.

Custom/Large Project Orders: MOQ negotiable; Lead time 30-45 days.

Samples/Test Screws: Available for site trials.

11. What are the packaging and shipping terms?
Packaging: Bundled and strapped on wooden pallets for easy handling with forklifts.

Shipping: Mainly by sea (FOB/CIF terms). We optimize container loading to minimize freight costs.

Documentation: Full commercial and material certification documents provided.             


      If you are interested in our products, please send message to us!