China Professional Extruded Steel Shafts Ground Helical Pie Deep Foundation for Transmission Tower Line set screw shaft coupler

Product Description

Product Description

Helical piers also are known in the soil remediation industry as helical torque anchors, helical piles, screw piles, and screw anchors. They are a key component for stabilizing new foundations and raising existing foundations for residential homes and commercial structures. There are many benefits of using helical piers, especially in the region where loose granular soils can be found in many sites.

The screw piles are provided in modular sections approximately 2m long. The lead section normally has 3 galvanized steel helices of increasing size welded to the shaft. If further depth is required, 2m follower sections are provided. Galvanized steel pile caps are also available.

General contractors are now seeing the benefits of pre-construction helical pile underpinning as well as the cost savings associated with expensive callbacks for foundation repairs after the job is complete. Helical piers have been used for almost 2 centuries for underpinning the support of new bridges and structures as well as foundation slab repair, elevated walkways, tieback anchors for retaining walls, pump and pipeline supports, and electric utility applications.

Photovoltaic screw ground pile can reduce the cost of the foundation of the support system, shorten the installation time, and reduce the environmental impact of the ground photovoltaic support system. As a quick and cost-effective solution, it is applicable to all major solar photovoltaic, wind energy and construction industries. Its high load performance, stability, settlement resistance and pull-out resistance are the reasons for its rapid development.

Load Bearing and Bearing Capacity Benefits
Since helical piers are designed with helices much like a screw, they can be driven deep into the ground below by using hydraulic machinery to increase the load bearing of heavy structures and bearing capacity of foundations.

By and large, when loose granular soils make construction difficult for traditional foundation installation, helical piers benefit general contractors with the cost savings associated with avoiding expensive and large excavations because they simply thread into the ground.

The Benefits of Utilizing Helical Piers for General Contractors
As mentioned above, there are many benefits of utilizing helical piers for increasing the load bearing for weak granular soils and improving the bearing capacity of foundations. The benefits are far-reaching and include:

Fast installation and immediate load-bearing capacity
Ideal for limited access sites
Pre-engineered and easily modified on site
Cost savings as opposed to using auger cast piles and drilled shafts
Instant torque-to-bearing capacity feedback for better production control
Uses smaller equipment and cleaner installation
No downtime waiting for concrete to cure
Provides a deep foundation for increased bearing capacity
Discourages soil disturbance during the installation
The Benefits for Foundation Repair

Helical piers installed for foundation repair by a certified soil remediation company is the preferred choice for home and business owners as well as general contractors. This method is a proven solution that adequately and effectively raises settled concrete and stabilizes foundations for proper repair with deep foundation support. Other reasons to consider helical pile underpinning existing structures and additional benefits include:

No vibration
Ease of installation
Installed torque correlates to capacities
Immediate load transfer after installation
Easily load tested that verifies capacity
Installation in any weather condition
Little to no site disturbance
Installs below active soils
Lowers excavation costs
Deep Foundation Benefits

Helical piles and other complex variations are generally utilized for deep foundations. They’re important because they transfer the load of a structure or building deep into the ground rather than having the load sit on the surface. Helical piers are a great choice for deep foundation projects and structures that involve poor soil conditions, site-unique constraints, and large loads.

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Although there are many parts to a foundation such as drilled shafts and footings, the most important part of a deep foundation is the pile itself, which can be a large pillar, rod or column driven deep into the earth. The pile that benefits deep foundations that best is the helical pile. Helical piers can support large loads and anchor the structure in place by a system known as underpinning. Additionally, helical piles are quicker and more cost-effective than other types of piles or deep foundation support systems.

The Benefits of Helical Piling for Varied Terrain
Helical Piers can be installed in varied terrain with a wide range of soil types and possible configurations. This makes them ideal for sites with sloped landscapes and soils that range from loose sand to stiff clay. They can also be installed in locations with high water tables, making them an excellent choice for clients and investors building structures in coastal regions.

The Faster Installation Benefits of Utilizing Helical Piling
When compared to other types of pile installations that can be time consuming and expensive, helical piles offer a much faster rate of installation with typical rotation rates ranging between 6 to 10 rpm. Although certain factors can impact each site differently, most anchors can be driven approximately 0.6m per minute.

Meaning, a 15-m helical pier installation can be achieved in under 30 minutes. This amazingly fast approach not only speeds up the construction process, but it also eliminates the need to wait for concrete to cure. And lastly, the major benefit of fast helical piling is its ability to instantly carry loads CHINAMFG installation.
Helical Piers–Description:

The original helical pier was designed as a wooden shaft with an iron helix for use in lighthouse foundations.
Today, helical piers are 1 of the 2 most common types of structural piering devices for residential foundation applications in use today. Helical piers are an excellent choice for foundation repair and stabilization when light
structural loads, unstable rock foundations or very deep load bearing stratums are present.

Ground Helical Anchor& Earth Helical Piers–Advantages
.A time-proven, versatile, and technically sound system.
· Lower cost and faster installation than other methods
· Installs quickly with small or handheld equipment.
· Can be installed in limited-access areas or tight access.
· Site cleanliness and minimize damage to landscape.
· Soil load bearing capacity is tested during installation.
· Helical anchors available with single, double and triple helix blades.

Engineering and Sustainability Benefits
Helical piles are designed with advanced engineering and sustainable technology for easy removal once they have fulfilled their purpose. Meaning, they are the perfect solution for sites that have temporary structures built on them or turning a developed site back into its natural state, leaving minimal impact on the environment. Helical piers are sustainable because they can be reused from site to site, making them more cost-effective than permanent pilings like concrete.

The Benefits of Hiring a Company Specializing in Helical Anchors
When it comes to professional engineering and installations of helical pilings, hiring a soil remediation company with vast experience and extensive knowledge of soil composition is highly recommended. Professional businesses utilize advanced analytical soil data and the latest technology to properly install helical anchors at the correct depth with underpinning in key locations to ensure foundation stability and bearing capacity.

Professional soil remediation companies offer a wide range of helical anchors and can recommend the best type to use for your specific site and structure. They also provide guidance and custom engineering to meet complex construction designs. When you hire a soil remediation company that specializes in helical anchors, your biggest benefit is knowing that your structure won’t sink and cost you thousands in unnecessary foundation repairs down the road.

What we can supply 

Round Shaft Helical Pile
Shaft Size
 OD in (mm)
Wall Thickness
in (mm)
Metal Area
in² (cm²)
in (cm)
Helix Size
Helix Thickness
Lead Length
Extension Length
2.875 (73) 0.203(5.2) 1.7 (11.0) 9.0 (22.9) 8/10/12/14 3/8 or 1/2 3/5/7 3/5/7/10
2.875 (73) 0.276(7.0) 2.3 (14.8) 9.0 (22.9) 8/10/12/14 3/8 or 1/2 3/5/7 3/5/7/10
3.5 (89) 0.300 (7.6) 3.0 (19.5) 11.0(27.9) 8/10/12/14 3/8 or 1/2 3/5/7 3/5/7/10
4.5 (114) 0.337(8.6) 4.4 (28.4) 14.1(35.9) 8/10/12/14 3/8 or 1/2 3/5/7/10 3/5/7/10
6.625 (168) 0.28 (7) 5.58 (36.0) 20.8(52.8) 8/10/12/14 3/8 or 1/2 3/5/7/10 3/5/7/10
8.625 (219) 0.25(6) 6.58 (42.5) 27.1(68.8) 8/10/12/14 3/8 or 1/2 3/5/7/10 3/5/7/10
All above sizes, steel grade are customizable.

How Helical Piers/Piles Work

Used vertically, they cost-effectively transfer the higher load-bearing capacity of denser subsoils to the surface where the soils may be soft and weak. Screw piles are also ideal for your soil or structure retention projects when installed horizontally or at in-between angles.

Today’s helical piers are made from either round or square extruded steel shafts with 1 or more welded helical plates per shaft. The plates both slice into the ground while providing compression, lateral and CZPT support to the shaft. Pile segments are added via couplings to increase pier depth.

The Many Benefits of Helical Pile Foundation Systems
Perhaps more than any other style of deep foundation support, helical piles have a long list of advantages as a support solution for your next pre-construction or remediation activity that offer meaningful cost savings.

Ease of Installation
The installation of helical piles is accomplished with a hydraulic torque motor mounted to portable torque installation equipment. Installation is rapid, especially when compared to concrete structures installation. In a matter of a few hours, a dozen or more screw piers can be installed with minimal site impact.

During foundation, retaining wall or marine structure installations, precise placement of support structures is critical. Especially with handheld torque installation equipment, pier surface and depth placement are exact. Additionally, if engineering plans change mid-project that require moving piers, they are easily extracted and repositioned.

Immediate Loading
As the installation of a pile progresses, higher torque is required to screw piers into the denser earth below. Higher torques mean higher load-bearing capacity at the surface and great axial load capacity for the pier. Once set at the proper depth, a pier’s load capacity is immediately available to you. Compare that to concrete foundations that require extensive excavation and cure time.

Functional Versatility
Because of their ability to provide strength in more than 1 direction, you should consider helical piles for projects where concrete support structures are impractical. Most often, these piers are installed vertically, but horizontal or angular installation is easily accomplished as well.

This makes them especially useful for your earth retention projects or lateral support of walls and foundations. In Florida, they are ideal for new seawall construction and for repairing aged or damaged sea walls by creating tension inward toward the ground.

Helical piers also require little clearance, which makes them a preferred solution when your site’s clearances are minimal or other structures are close by.

Outstanding Cost Savings
Except in cases of foundation retrofit that may require exposing footings, there is no excavation required to install helical piers. That means there is no hauling of spoils either. Additionally, the cost of concrete, spillage and the delays while it cures are avoided.

Because of their adaptability for an array of project types, you will also find that they cut down on pre-construction plHangZhou and prep activities. All of these factors taken together mean helical piles are an exceptionally economical solution for ground support and retention.

Environmentally Beneficial
It is clear that compared to concrete foundations, the installation of helical piers almost completely eliminates site damage and cleanup costs. Additionally, fuel costs associated with concrete are significantly reduced.

Another immediate environmental benefit is that pier installation produces minimal vibration, which is critical in sensitive areas or when you are working close to occupied buildings.

Helical piles have another significant environmental advantage. Even years after installation, they can be easily removed if necessary and reused on other projects.

A Wide Array of Applications
For commercial buildings, homes and industrial sites located anywhere from the mountains to the sea, helical piles are often the most practical, durable and cost-effective solution for support and retention projects.

New Construction
In new construction, helical screw piles are used for decks over earth or water, pedestrian bridges, and boardwalks. You will find them indispensable for beachfront projects such as seawalls, bulkheads, pipe anchors or boat moorings as they can penetrate the water bottom through sand and silt. They are ideal for towers plus signage and lighting supports too.

Retrofitting of Existing Structures
For improving soil slippage, helical piers are often used to improve slab support, tying back retaining walls to CHINAMFG earth when repairing cracked Florida seawalls. They can effectively provide lateral support to existing foundations or when leveling foundations or other concrete structures that have settled.

1. Structural advantages
The spiral ground pile is driven underground in a revolving way, so the soil is not easy to loosen, and the soil conditions can be well used. According to the blade structure of the screw ground pile, it has good tensile pull-out force and insertion grip.

2. Simple and efficient
As a new type of foundation technology, spiral ground pile has many outstanding advantages, such as convenient construction, short period, little impact from the construction environment, no damage to the local environment, easy migration and recycling.

3. Low cost
Compared with formwork erection, rebar binding and pouring of concrete. Embedded anchor bars, curing, formwork removal, foundation soil backfilling and other procedures, the spiral ground pile only needs to be positioned and driven, and the material and labor costs can be saved.

4. All weather construction
It has little impact on the environment and can be constructed under most climatic conditions, such as rain, snow, freezing and other weather.

Our Advantages

Adequate inventory
Strong strength, integrating research and development, production, processing, and export.
Annual production:300,000pieces
Perfect testing management system
Multiple testing equipment is strictly included, including steel quality grade, welding quality, galvanizing quality, actual trial test, and other links for strict testing. Ensure that all links are safe and reliable.
Strong after-sales service system
The ultra-long shelf life reaches 3 years, and there is a professional after-sales team to deal with problems on time, and deliver on time.

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After-sales Service: One Year
Warranty: One Year
Condition: New


Customized Request

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

screw jack

Can screw jacks be used in conjunction with manual or motorized operation?

Yes, screw jacks can be used in conjunction with both manual and motorized operation, providing flexibility and adaptability to various applications. Screw jacks are versatile devices that can be powered by either human effort or motorized systems. Here’s how screw jacks can be utilized with manual and motorized operation:

  • Manual Operation: Screw jacks can be operated manually by applying force to the input shaft or using a handwheel. This manual operation allows for precise control over the lifting or lowering process. It is commonly used in applications where the load is relatively light, adjustments need to be made incrementally, or where power sources may not be readily available. Manual operation provides simplicity, ease of use, and cost-effectiveness.
  • Motorized Operation: Screw jacks can also be motorized for automated and efficient operation. Electric motors or hydraulic systems can be integrated with screw jacks to provide power-assisted lifting or lowering. Motorized operation offers advantages such as increased speed, higher lifting capacities, and the ability to handle heavier loads. It is particularly useful in applications where repetitive or frequent adjustments are required, or where large loads need to be lifted or positioned quickly.
  • Combination of Manual and Motorized Operation: In certain applications, screw jacks can be used in combination with both manual and motorized operation. This hybrid approach provides the benefits of manual control for fine adjustments and motorized power for heavier lifting or faster operation. For example, a manual handwheel can be used for initial positioning or precise adjustments, while an electric motor can be engaged for larger-scale movements or when power assistance is needed. This combination allows for versatility and adaptability to different load requirements and operating conditions.

The choice between manual and motorized operation depends on factors such as the nature of the application, load requirements, desired speed, available power sources, and operator preferences. Screw jacks offer the flexibility to switch between manual and motorized operation, making them suitable for a wide range of industries and applications, including manufacturing, construction, automotive, and entertainment.

screw jack

Can you provide real-world examples of machinery or structures that use screw jacks?

Yes, screw jacks are commonly used in various machinery and structures for lifting, lowering, and positioning applications. Here are some real-world examples of machinery and structures that utilize screw jacks:

  • Industrial Machinery: Screw jacks are widely used in industrial machinery and equipment. They are employed in material handling systems, assembly lines, packaging machines, and conveyors to lift or lower components, adjust working heights, or provide precise positioning. Screw jacks are also used in presses, injection molding machines, and die-casting equipment to apply controlled force or pressure.
  • Construction and Infrastructure: In the construction industry, screw jacks are used in various applications. They are utilized in formwork systems to support and adjust the height of concrete molds during construction. Screw jacks are also employed in scaffolding systems to provide stability and height adjustment. In addition, they are utilized in bridge construction and maintenance to lift and position heavy components or to create temporary supports.
  • Aerospace and Defense: Screw jacks find application in aerospace and defense industries. They are used in aircraft maintenance and assembly for tasks such as raising or lowering landing gear, adjusting wing flaps, or positioning aircraft components. Screw jacks are also utilized in missile launch systems, satellite deployment mechanisms, and radar systems.
  • Automotive and Transportation: Screw jacks play a role in the automotive and transportation sectors. They are used in vehicle lifting systems, such as car lifts or hydraulic ramps, for maintenance and repair operations. Screw jacks are also employed in adjustable-height truck trailers, lifting platforms for disabled access vehicles, and loading dock levelers.
  • Stage and Entertainment: In the stage and entertainment industry, screw jacks are utilized for stage rigging and set construction. They are employed to lift and position lighting fixtures, sound equipment, and scenery elements. Screw jacks provide precise control over the elevation and alignment of stage components, facilitating dynamic performances and efficient setup.
  • Medical and Rehabilitation: Screw jacks find application in medical and rehabilitation equipment. They are used in patient lifts and adjustable hospital beds to facilitate safe patient transfers and positioning. Screw jacks also play a role in rehabilitation equipment, such as lifting platforms for physical therapy or adjustable exercise machines.

These are just a few examples of the many applications of screw jacks in various industries. The versatility, reliability, and precise control offered by screw jacks make them suitable for a wide range of machinery and structures where lifting, lowering, or positioning operations are required.

screw jack

Can screw jacks be adapted for both vertical and horizontal lifting applications?

Yes, screw jacks can be adapted for both vertical and horizontal lifting applications. Screw jacks are versatile mechanical devices that can be configured and mounted in various orientations to accommodate different lifting requirements. Here’s how screw jacks can be adapted for vertical and horizontal lifting applications:

  • Vertical Lifting: Screw jacks are commonly used for vertical lifting applications. In vertical lifting configurations, the screw jack is mounted in a vertical position, with the load being lifted or lowered along the vertical axis. Vertical lifting applications include lifting platforms, stage equipment, heavy machinery, and other scenarios where vertical movement is required. Screw jacks designed for vertical lifting typically feature self-locking mechanisms to ensure load stability when the screw is not being rotated. The load is supported by the screw jack’s structure, which is constructed to handle the vertical forces exerted during lifting.
  • Horizontal Lifting: Screw jacks can also be adapted for horizontal lifting applications. In horizontal lifting configurations, the screw jack is mounted in a horizontal position, and the load is moved horizontally or at an angle. Horizontal lifting applications can include conveyor systems, sliding gates, adjustable workstations, and other scenarios where linear movement is required along a horizontal plane. To adapt a screw jack for horizontal lifting, additional support mechanisms may be employed to counteract the gravitational forces acting on the load. These support mechanisms can include guide rails, linear guides, or additional bracing to maintain stability and control during horizontal movement.
  • Angular Lifting: Screw jacks can be further adapted for angular lifting applications where the load needs to be lifted or lowered along an inclined or diagonal plane. Angular lifting configurations require careful consideration of the load’s weight distribution, the angle of inclination, and the stability of the supporting structure. By appropriately positioning and supporting the screw jack, angular lifting applications can be achieved with precision and control.
  • Mounting Flexibility: Screw jacks offer flexibility in terms of mounting options, allowing them to be adapted for various orientations. The mounting flexibility enables screw jacks to be integrated into different lifting systems and structures. Depending on the specific requirements of the application, screw jacks can be mounted using flanges, brackets, or other mounting accessories. This adaptability facilitates the use of screw jacks in both vertical and horizontal lifting applications.

In summary, screw jacks can be adapted for both vertical and horizontal lifting applications. By considering factors such as load requirements, gravitational forces, stability needs, and mounting flexibility, screw jacks can be configured and mounted to provide stable and controlled lifting in various orientations.

China Professional Extruded Steel Shafts Ground Helical Pie Deep Foundation for Transmission Tower Line   set screw shaft couplerChina Professional Extruded Steel Shafts Ground Helical Pie Deep Foundation for Transmission Tower Line   set screw shaft coupler
editor by Dream 2024-04-22

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Ep Screw Jack Co., Ltd.

Mail: [email protected]

As one of leading manufacturers, suppliers and exporters of mechanical products in China, We offer reducers, sprockets, industrial and conveyor chain, belts, pulleys, gears, racks, gearboxes, motors, PTO Shafts, taper lock Bushing, vacuum Pumps, screw air compressors and many other products. Please contact us for details.