Helical Screw Piles for Foundation Solar Support Spiral Galvanized
Basic Info.
| Steel Type | Q355/Q255 | Surface Treatment | Hot DIP Galvanizing with an Average of Over 80 μm |
| Transport Package | Pallet and Carton | Usage | Construction Engineering,Fixed Orchards And Greenhouses,Billboards
And Street Lamp Foundations |
| Certification | API, ISO, CB, CE, SGS, BV | HS Code | 730110 |
| Pipe Diameter | Customizable(48~219mm) | Trademark | KXD STEEL STRUCTURE |
| Plate Diameter | Customizable(150~600mm) | Production Capacity | 50000 PCS/Month |
| Pile Length | Optional(1m~6m) | Origin | Qingdao,China |
| Shaft Wall Thickness | 3mm~12mm | Blade Thickness | 6mm~16mm |
| Helix Number | 1~4 Blades | Connecting | Flange Plate,Sleeve,Welding |
Packaging & Delivery
Package Size
12000.00mm * 2300.00mm * 2300.00mm
Package Gross Weight
27000.00kg
Product Description
Helical piles, which are sometimes referred to as helical piers,
helical anchors, and posts, are a screw-in pile used to build deep
foundation systems and ground anchoring systems. A helical pile
consists of a central shaft (circular or square) and a helix
plate(s). The shaft can come in either a circular or a square cross section
shape and is typically hollow.The helix plates which are press-formed with a predetermined pitch
to resemble a screw are welded to the shaft. They are fabricated in
various sizes and configurations to meet different types of loading
and logistical requirements. The size and configuration of a
helical pile is based on the design load the pile will carry, the
existing soil conditions, the corrosiveness of the existing soils
and the service life of the structure.
A helical piers is like a big screw with a shaft and bearing
plates. Soil conditions and loads determine the necessary depth of
the pier and diameter of the helixes, or bearing plates. Helixes
are only found on the lead section of the pier, and extensions are
added when needed to drive the pier deeper. Bearing capacity can be
verified by the amount of torque required to drive the pier during
installation. At the top of the pier is a cap to which various
heads can be attached. Usually welded to the cap or somewhere along
the shaft, the head may be a bracket that can be bolted to a
foundation, like the ones shown here, or it could be a base for a
deck post, for example.
Performance Advantages
1. Easy construction: No need for ground leveling, waste soil
treatment or excavation. It can be directly rotated and screwed
into the ground. The construction period is short and it is less
affected by the environment.
2. Good environmental performance: During the construction process,
it does not damage the soil structure, reduces construction waste,
and has low construction noise and vibration.
3. Low cost: Compared with traditional concrete foundations, the
material and labor costs of spiral ground piles can be saved by
two-thirds.
4. All-weather construction: It can be constructed under most
climatic conditions, such as rain, snow, freezing and other weather
conditions.
5. Removable and recyclable: After use, it can be reversed and
pulled out to restore the site and reduce the impact on the
environment.
6. High load-bearing capacity: Strong uplift resistance and
insertion grip, which can effectively disperse pressure and reduce
the risk of settlement.
7. Wide range of application: It is suitable for various geological
conditions, such as silty clay, silt clay, silt soil, medium and
fine sand, etc.
Typical application scenarios
New energy: Photovoltaic support foundation (to avoid damaging
farmland), temporary foundation for wind power generation.
Building reinforcement: Foundation strengthening when elevators are
added to existing buildings and basements are expanded.
Municipal engineering: Rapid installation of street lamps, traffic
signs and sound barriers.
Emergency disaster relief: Rapid construction of the foundations
for temporary Bridges and prefabricated houses.
Comparison with other foundation forms
| Types | Spiral ground piles | Concrete cast-in-place piles | Prefabricated piles |
| Construction speed | Extremely fast(Completed on the same day) | Snow(It requires 28 days of curing) | Medium(Pile driving equipment is needeed) |
| Environmental impact | Extremely small(No mud pollution) | Big(Excavation,a large amount of waste) | Medium(The noise and vibration are large) |
| Cost | Low cost(Labor and equipment savings) | Relatively high(Long materials and construction period) | Medium |
| Geological limitations | Avoid rock layers and huge rocks | Almost unlimited | Hard soil layers are difficult to penetrate |
Types Of Spiral Ground Piles
The type of spiral pile is rich, and here are some common
categories:
One.Classification by leaf layout
1.Single blade spiral pile: only a spiral blade shaped like a large
screw. This kind of land pile is convenient when it is transferred
to the soil, and the construction speed is fast. It is suitable for
some small projects and temporary facilities, such as small
photovoltaic support and simple tent, etc.
2.Double blade spiral pile: there are two spiral blades, and there
is a certain spacing between the two blades. The double blade
design increases the contact area with the soil, and the bearing
capacity and the resistance of the bearing capacity and drawing
resistance are improved compared with that of the single-blade
sheet spiral pile, which is often used for the foundation support
of photovoltaic power station, small wind turbine and other
equipment.
3.Multi-blade spiral pile: helical blade with three or more helical
blades with relatively small spacing. Multi-blade spiral pile can
provide greater bearing capacity and stability, and can meet the
application requirements of heavier duty, such as the foundation
support of large photovoltaic power station and communication
tower, which is widely used in some situations with complex
geological conditions and higher bearing capacity requirements.
4.Continuous blade type spiral ground pile: the blade is
continuously wound on the central steel shaft to form a spiral
rising continuous structure. The large contact area between the
blade of this land pile and the soil mass can provide strong
lateral friction resistance and tensile force, which is suitable
for various complex geological conditions, especially in the soft
land area and the engineering that requires higher bearing
capacity, such as large outdoor billboards and auxiliary support of
Bridges, etc.
Two.Classification by connection
1.Flanged screw pile: top with a flange and connected to the
superstructure through a flange. Flange connection has the
advantages of high strength, good stability, convenient
installation and disassembly, can adapt to certain displacement and
deformation, can withstand large load, widely used in light
photovoltaic power station, fruit and vegetable shed, wooden house
villa and other infrastructure scenes.
2.Nut connection screw pile: connected to upper parts by nuts and
bolts. Its structure is simple, the production process is
relatively simple, the cost is low, and the upper and lower
adjustment is convenient, the upper and lower adjustment range is
wide, is often used in the light photovoltaic power station, fence
fence, billboard traffic and other infrastructure construction.
3.U-type connected screw pile: u-shaped disk special design
structure, can be quickly, tightly and firmly connected with wood
column materials. In the early stage, the design and production is
standardized and standardized, which can improve the efficiency and
quality of construction and installation, and is used in wooden
structure such as wooden villas, wooden plank roads and advertising
signs.
Three.Use classification
1.Photovoltaic bracket spiral ground pile: specially designed for
photovoltaic bracket, used to support solar panels. Its
specifications and bearing capacity are customized according to the
weight, size and installation mode of photovoltaic battery
components, and have good corrosion resistance and long service
life, so as to meet different environmental conditions and long-term use needs of
outdoor use, and ensure the stability and reliability of
photovoltaic bracket system.
2.Spiral ground pile of wind turbine: used for the foundation of
wind turbine, it needs to bear large wind load and equipment
weight. Generally, it has large size and high strength. Considering
the special stress of wind turbine, the design of spiral ground
pile will also be optimized accordingly, such as increasing the
diameter and quantity of blades and increasing the stiffness of
pile body, so as to meet the stable operation requirements of wind
turbine under various working conditions.
3.Temporary facilities spiral ground pile: support of temporary
facilities used for construction sites, tents of campsites, tents
of music festivals and other temporary facilities. This kind of
spiral pile pays attention to the convenience of installation and
disassembly, the general size is relatively small, easy to carry
and transport, can be quickly fixed to the ground, provides a solid
foundation for temporary facilities, and can be easily pulled out
and reused after use.
4.Spiral ground pile of traffic facilities: as the supporting
foundation of guardrail and sign in traffic facilities such as
roads and railways, it is necessary to have good impact resistance
and durability to withstand the collision of vehicles and long-term
outdoor environment erosion, and ensure traffic safety.
5.Landscape spiral pile: used for the support of outdoor seats,
lampposts, flower frames and other landscape facilities in garden
landscape design, in addition to satisfying the basic bearing
function, it will also coordinate with the surrounding landscape in
exterior design, play a certain decorative role, and add beauty to
the garden landscape.
Four.Material classification
1.Carbon steel spiral pile: relatively low cost, good mechanical
performance, can be used to improve its corrosion resistance by hot
dip galvanizing and other surface treatment methods, is one of the
widely used spiral ground pile materials, in photovoltaic support
foundation, temporary facilities construction and other aspects.
2.Stainless steel spiral pile: it has excellent corrosion
resistance and corrosion resistance, can be used in harsh
environmental conditions for a long time, such as Marine
environment, chemical plant area and other corrosive sites, but its
price is relatively high, generally used for corrosion resistance
engineering.
3.Aluminum alloy spiral pile: light weight, high strength, good
corrosion resistance, and good processing performance and
decoration effect. In some places with high aesthetic requirements,
such as garden landscape facilities and outdoor facilities of
high-end residential, aluminum alloy spiral pile has become a good
choice, but its cost is also high.
Five.According to pile structure classification
1.Solid spiral pile: pile is solid structure, with high strength
and stiffness, can withstand large load, suitable for engineering
with high bearing capacity requirements, but relatively large
weight, transport and construction may require more mechanical
assistance.
2.Hollow screw pile: pile body is a hollow structure, on the
premise of ensuring certain strength and stiffness, can reduce
their own weight, facilitate transportation and construction, and
at the same time can meet the bearing capacity requirements of
general engineering, is a common spiral pile form.
Product Parameters
The parameter selection of spiral ground piles should be combined
with engineering requirements, geological conditions and budget,
and the shaft diameter, blade size and material should be
reasonably matched. Its modular design gives it obvious advantages
in terms of load-bearing capacity, construction efficiency and
environmental protection, and it is suitable for a variety of
scenarios ranging from temporary facilities to permanent buildings.
| Basic Structural Parameters |
| Parameter Item | Common Specifications | Remarks |
| Material | Q235/Q355 Carbon Steel,Galvanized Steel,Stainless Steel | Carbon steel is mostly used in general engineering, while
galvanized or stainless steel is used in corrosive environments |
| Central Axis Diameter | 48mm-219mm | The larger the shaft diameter is, the stronger the bending and
compressive resistance will be. |
| Shaft Wall Thickness | 3mm-12mm | The larger the shaft diameter is, the stronger the bending and
compressive resistance will be |
| Helix Number | 1-4 Blades | Multi-blade is suitable for high load-bearing capacity or uplift
resistance requirements |
| Blade Diameter | 150mm-600mm | The larger the blade, the higher the load-bearing capacity |
| Blade Thickness | 6mm-16mm | Thick leaves are suitable for hard soil layers or rock geology |
| The Pile length(A Single Section) | 1m-6mm(Segmented Connection Available) | It can be connected in multiple sections and the maximum depth can
reach 30 meters |
| Connecting Method | Flange Plate,Sleeve,Welding | The flange plate is easy to disassemble and the welding is more
stable |
| Mechanical Performance Parameters |
| Parameters | Typical Range | Description |
| Compressive bearing capacity | 5kN-500kN | It depends on the leaf size, burial depth and soil quality. |
| Uplift bearing capacity | 3kN-300kN | The multi-blade design can enhance the uplift resistance. |
| Lateral force resistance | 2kN-100kN | It can be strengthened by oblique driving or increasing the pile
diameter. |
| Installation torque | 1kN·m-50kN·m | Torque is positively correlated with bearing capacity (empirical
formula: bearing capacity ≈ torque *10) |
| Construction Parameter |
| Parameters | Typical data | Description |
| Installation equipment | Small excavator (with hydraulic head), handheld spiral pile driver. | The equipment is lightweight and suitable for narrow places. |
| Installation Speed | 30 minutes per piece. | It is 3 to 5 times faster than traditional pile foundations. |
| Applicable soil types | Clay, sandy soil, silt, frozen soil, backfill soil. | Hard rock layers require special blade designs. |
| Maximum installation depth | It can reach over 30 meters. | Multi-section connection, with flexible depth adjustment. |
| Environmental adaptability parameters |
| Parameters | Description |
| Corrosion resistanceseismic performance | The galvanized layer (≥80μm) or epoxy coating can have a service
life of up to 50 years. |
| applicable temperature | The temperature range is + -40℃ to 60℃ (special steel can adapt to
extremely cold or high temperatures). |
| seismic performance | The steel has good flexibility and is suitable for the spiral
design in earthquake-prone areas to reduce the impact of frozen
soil. |
| frost heave resistance | It is applicable to northern regions |
| Common model examples(references) |
| Model | Shaft Diameter(mm) | Blade Diameter(mm) | Single pile bearing capacity(kN) | Applicable scenarios |
| HZ-76 | 76 | 200 | 50-100 | Photovoltaic brackets, fences. |
| HZ-114 | 114 | 300 | 100-200 | Lightweight buildings, billboards. |
| HZ-168 | 168 | 450 | 200-400 | House foundation, wind power foundation. |
| HZ-219 | 219 | 600 | 400-800 | Heavy construction, bridge reinforcement. |
Our Advantages
✅ Quality product: Made of high strength steel (Q235B/Q355B), with
anti-corrosion galvanized or epoxy coating to ensure durability and
corrosion resistance, suitable for various complex geological
conditions.
✅ Customized services: We offer a variety of specifications (shaft
diameter 48mm - 219mm, blade diameter 150mm - 600mm), and support
customization according to engineering requirements to meet
different bearing capacity requirements.
✅ Fast delivery: Factory direct supply, sufficient inventory,
shortened procurement cycle, guaranteed project progress.
✅ Technical support: Professional team provides selection guidance,
construction plan optimization and on-site installation support to
ensure project quality.
✅ Cost advantage: helps customers save 20% to 40% of the combined
cost compared with traditional pile foundation and improve project
efficiency.
If you are interested in our products,please feel free to contact
with us,we are glad to serve you.
