Stakes Product List and Ranking from 68 Manufacturers, Suppliers and Companies | IPROS

Last Updated： Aggregation Period:Feb 18, 2026～Mar 17, 2026
This ranking is based on the number of page views on our site.

Stakes Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Feb 18, 2026～Mar 17, 2026
This ranking is based on the number of page views on our site.

  1. 丸栄コンクリート工業 Gifu//Building materials, supplies and fixtures manufacturers
  2. 三誠 Tokyo//Other construction industries
  3. 菱建基礎 本社 Tokyo//General contractors and subcontractors
  4. 4 千代田工営 Saitama//General contractors and subcontractors
  5. 5 川本コンクリート工業所 Mie//Building materials, supplies and fixtures manufacturers
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Stakes Product ranking

Last Updated： Aggregation Period:Feb 18, 2026～Mar 17, 2026
This ranking is based on the number of page views on our site.

  1. Steel pipe pile + concrete panel method "SP Wall" 丸栄コンクリート工業
  2. Technical Data: Rotating Driven Steel Pipe Pile 'N-ECS PILE' 三誠
  3. Hangzhou "GT Spiral Foundation Pile" 大見海事工業
  4. 4 Steel pipe foundation pile "Detachable SP Foundation" Ｇテクノ
  5. 5 KCTB cast-in-place steel pipe concrete pile 菱建基礎 本社

Stakes Product List

31～60 item / All 153 items

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Foundation piles for weak ground: IS Twist (screw piles) construction examples.

Foundation piles for weak ground: IS Twist (screw piles) construction examples.

Easy to set up and remove! Introducing examples of pile construction that are ideal for residential areas and nighttime work due to low noise and low vibration.

The "IS Twist (Screw Pile)" is an ideal pile for soft ground. It does not use concrete and does not require any special machinery during installation, making it suitable for various sites. It can be easily extracted with reverse rotation and is reusable, making it perfect for temporary structures during disasters. Additionally, it operates with low noise and low vibration, minimizing the impact on nearby residences, and is suitable for nighttime work. We also offer a variety of connection parts for solar power generation frames, so please feel free to consult us. 【Examples of Installation】 ■ Rental Products ■ Temporary Houses for Disaster Relief ■ Roadside Structures ■ Seismic Measures for Stone Products ■ Solar Power Generation Frames / Wind Power Generation ■ Railway Platform Supports *For more details, please refer to the PDF materials or feel free to contact us.

  • Piles, caissons, sheet piles
  • Pile and foundation work
  • Stakes

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Foundation piles for solar power generation 'IS Twist' *No concrete required

Foundation piles for solar power generation 'IS Twist' *No concrete required

Twist processing of flat steel with our original machine! Reduction of work types, elimination of curing after construction, and shortening of the construction period are possible! Foundation piles for solar power generation.

The "IS Twist (Screw Pile)" is a foundation pile and ground reinforcement material for solar power generation that is environmentally friendly and does not use concrete. For surface treatment, we use a safe and secure molten zinc coating that is environmentally friendly with "low lead and low cadmium." Since there is no excavation, there is no generation of surplus soil, and even when excavation is necessary, there is no surplus soil generated due to backfilling. Additionally, the reduction of construction types and the elimination of the need for curing after construction allow for a shortened construction period. 【Features】 ■ Cost reduction ■ Shortened construction period ■ Environmentally friendly foundation piles and ground reinforcement materials ■ Compatible with underground installations ■ Adaptable to various construction conditions *For more details, please refer to the catalog or feel free to contact us.

  • Reinforcement and repair materials
  • Piles, caissons, sheet piles
  • Concrete sheet piles and piles
  • Stakes

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IS Twist (Screw Pile) Construction Example: Temporary House

IS Twist (Screw Pile) Construction Example: Temporary House

Introducing a case of a disaster temporary house using IS Twist (screw piles) for weak ground!

We would like to introduce a construction example using the environmentally friendly foundation piles and ground reinforcement material "IS Twist (screw piles)" without the use of concrete. The "temporary house" constructed as a disaster response measure can be easily removed, relocated, and dismantled with reverse rotation. Additionally, it does not decrease the land's asset value. 【Features of IS Twist (screw piles)】 ■ Cost reduction ■ Shortened construction period ■ Environmentally friendly ■ Compatible with underground installations ■ Adaptable to various construction conditions *For more details, please refer to the PDF document or feel free to contact us.

  • Piles, caissons, sheet piles
  • Pile and foundation work
  • Stakes

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IS Twist (Screw Pile) Construction Example: Roadside Structures

IS Twist (Screw Pile) Construction Example: Roadside Structures

Introducing examples of road ancillary structures using IS twists (screw piles) for weak ground!

We would like to introduce a construction example using the environmentally friendly foundation pile and ground reinforcement material "IS Twist (screw pile)" without the use of concrete. The "roadside structures" utilize a rotary insertion method with a hydraulic auger, resulting in low noise and low vibration. There is no need to worry about the impact on nearby residences. Additionally, there are no preliminary survey costs. 【Features of IS Twist (screw pile)】 ■ Cost reduction ■ Shortened construction period ■ Environmentally friendly ■ Compatible with underground installations ■ Adaptable to various construction conditions *For more details, please refer to the PDF materials or feel free to contact us.

  • Piles, caissons, sheet piles
  • Pile and foundation work
  • Stakes

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IS Twist (Screw Pile) Construction Example: Wind Power Generation

IS Twist (Screw Pile) Construction Example: Wind Power Generation

Excellent compatibility with renewable energy! Introducing a case of wind power generation using IS Twist (screw piles).

We would like to introduce a construction example using the environmentally friendly foundation piles and ground reinforcement material "IS Twist (screw piles)" without the use of concrete. The foundation for "wind power generation" is best suited for the environmentally friendly NS Spike method. It is possible to install the wind power generation unit on the same day as the foundation construction. We also offer a variety of joint parts for solar power generation frames, so please feel free to consult with us. 【Features of IS Twist (screw piles)】 ■ Cost reduction ■ Shortened construction period ■ Environmentally friendly ■ Compatible with underground installations ■ Adaptable to various construction conditions *For more details, please refer to the PDF materials or feel free to contact us.

  • Piles, caissons, sheet piles
  • Pile and foundation work
  • Stakes

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[IS Twist (Screw Pile) Construction Example] Solar Panel Array Support Structure

[IS Twist (Screw Pile) Construction Example] Solar Panel Array Support Structure

Excellent compatibility with renewable energy! Introducing examples of solar panel array mounting systems.

We would like to introduce an example of construction using the environmentally friendly foundation piles and ground reinforcement material "IS Twist (screw piles)" without using concrete. The foundation for the "solar panel array frame" is suitable for the environmentally friendly NS Spike method. It is possible to install the wind power generation unit on the same day as the foundation construction. We also offer a variety of joint options for the solar power generation frame, so please feel free to consult with us. 【Features of IS Twist (screw piles)】 ■ Cost reduction ■ Shortened construction period ■ Environmentally friendly ■ Compatible with underground installations ■ Adaptable to various construction conditions *For more details, please refer to the PDF materials or feel free to contact us.

  • Piles, caissons, sheet piles
  • Pile and foundation work
  • Stakes

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Resin-made underground installation marker stake "SP Pile"

Resin-made underground installation marker stake "SP Pile"

Vividly indicate underground buried objects! Durable plastic buried marker stakes.

It is lighter than concrete piles, not hollow, so it is strong against impacts and does not break. It is a 450mm long pile made of resin with a prominent head and a color-coded plate. 【Features】 ■ Lightweight and unbreakable due to durable resin ■ Stock items available for same-day shipping ■ Excellent visibility of the display section ■ Custom markings can be produced quickly from just one piece ■ Two types of display sections available: round and square *For more details, please download the PDF or feel free to contact us.

  • Pile and foundation work
  • Stakes

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Construction Technology: Concrete Piles

Construction Technology: Concrete Piles

There are two types of concrete piles: "bearing piles" and "friction piles"! Let us introduce our construction technology.

There are "precast concrete piles," which are manufactured in factories and then driven into the ground, and "cast-in-place concrete piles," which are created by pouring concrete into holes excavated in the ground. Cast-in-place concrete piles involve dropping a cylindrical rebar structure assembled on-site into the excavated ground, and then pouring concrete into the hole to form a pile shape. Concrete piles include "bearing piles," which are driven to the bearing layer, and "friction piles," which are driven to stable ground. [Overview] ■ Concrete Pile (Bearing Pile) ■ Concrete Pile (Friction Pile) ■ Cast-in-Place Concrete Pile *For more details, please refer to the related links or feel free to contact us.

  • Concrete sheet piles and piles
  • Stakes

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Information about the "bD Pile Method"

Information about the "bD Pile Method"

Minister of Land, Infrastructure, Transport and Tourism certified construction method! Achieving limitless construction with no vibrations, no noise, and no leftover soil.

The "bD Pile Method" is an environmentally friendly seismic isolation method that is executed without vibration, noise, or the generation of excess soil. It is a minister-certified method that does not require specialized heavy machinery and can be implemented using a backhoe. The length of the piles can be freely designed and manufactured according to needs, making it economical. Applicable ground types include sandy ground, gravelly ground, and clayey ground, and the bD piles can be selected from 12 types based on combinations. 【Features】 ■ No vibration ■ No noise ■ No excess soil generated ■ Environmentally friendly ■ No specialized heavy machinery required *For more details, please download the PDF or feel free to contact us.

  • Ground foundation construction method
  • Civil Engineering Method
  • Stakes

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Westech Replar Pile Series

Westech Replar Pile Series

Considering the Earth's environment, we use recycled materials! We have prepared versatile materials that can be used for various purposes.

Introducing the "Westec Ripra Stake Series." This series consists of eco-mark certified products made from 100% recycled plastic. We have established a circular material recycling system by reusing container and packaging plastics discharged in Japan. Our lineup includes the "Plastic Round Stake," which offers excellent durability and strength, as well as the lightweight and sturdy "Plastic Square Stake" and the always beautiful "Plastic Boundary Stake." 【Features】 ■ Lightweight ■ Durable ■ Rich variety ■ Considerate of the global environment, using recycled materials ■ Eco-mark certified products made from 100% recycled plastic *For more details, please refer to the PDF materials or feel free to contact us.

  • Piles, caissons, sheet piles
  • Stakes

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Driving stake "Kui Maru"

Driving stake "Kui Maru"

A revolutionary shape that is resistant to breaking and bending! When stacked, the head and tip do not interfere with each other, making it safe and space-saving.

"Kui Maru" is a driven pile that can be used for signage. When driven 1 meter into soil with an average N value of 7, its resistance is approximately 1000 kg. This product does not disturb the surrounding soil and boasts a pull-out strength 2.5 times that of scaffolding pipes. Additionally, it uses high-quality galvanized steel pipes, and its internal structure is sealed, making it extremely resistant to rust. You can choose from various sizes according to your application. 【Features】 ■ Does not disturb the surrounding soil ■ Boasts a pull-out strength 2.5 times that of scaffolding pipes ■ Strength is dramatically improved by incorporating a taper into the pipe ■ Innovative shape that is difficult to break and bend ■ When stacked, the head and tip do not interfere, ensuring safety and space-saving *For more details, please refer to the PDF document or feel free to contact us.

  • Piles, caissons, sheet piles
  • Stakes

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Introduction to Kamenata Co., Ltd. "Construction Materials Division"

Introduction to Kamenata Co., Ltd. "Construction Materials Division"

Leave construction materials and construction work to us.

In the "Construction Materials Division," we mainly engage in the sales of H-shaped steel, shaped steel, and temporary materials, as well as the ordering and construction of multi-story parking lots, elevators, and large air conditioning projects. We are divided into two divisions: the "Construction Materials Division," which focuses on these sales and projects, and the "Construction Works Division," which comprehensively covers construction-related work, centering on the ordering and construction of air conditioning work, window frame work, glass work, roofing work, civil engineering work, pile work, and residential equipment installation. Additionally, we offer sales of cement-related products such as deformed round bars, ready-mixed concrete, and blisters, as well as leasing of temporary materials and construction machinery. Please feel free to contact us for more information. 【Products Offered】 ■ Construction Materials Division - Civil engineering materials - Building materials ■ Construction Works Division - Construction work - Residential equipment - Window frame glass *For more details, please feel free to contact us.

  • Other civil engineering works
  • Steel
  • Construction machinery leasing and rental
  • Stakes

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Flanged integrated steel pipe pile "MA foundation body"

Flanged integrated steel pipe pile "MA foundation body"

Flanged integrated steel pipe piles that can be constructed in a series of processes including foundation and column construction.

The "MA Foundation Body" can be installed from the ground line, and it is a construction method that requires almost no soil disposal. Since there is no concrete pouring on site, it is easy to shorten the construction period, and installation in narrow spaces is possible. Additionally, the design standards are calculated in accordance with the "Guidelines for Road Bridges by the Japan Road Association and its Commentary." 【Features】 ■ Installation of pile lengths tailored to the site's N value is possible ■ Construction can be carried out in a continuous flow from foundation to pole erection ■ Low noise and low vibration method compared to conventional foundation pile methods ■ Use of general-purpose machinery (pole erection vehicles) eliminates the need for vehicle transportation *For more details, please feel free to contact us.

  • Pile and foundation work
  • Steel
  • Stakes

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Steel Pipe Pile "Gaia Super Pile Method"

Steel Pipe Pile "Gaia Super Pile Method"

Minister of Land, Infrastructure, Transport and Tourism certified construction method! Non-welded mechanical pile connections dramatically increase work speed and efficiency.

The "Gaia Super Pile Method" is a rotary insertion method for steel pipe piles with a small diameter (φ114.3 to 457.2) that features two semicircular wings and a triangular vertical excavation blade attached to the tip. It allows for a wide selection of support layers, ranging from sandy ground to gravelly ground (13≦N value≦57) and clayey ground (10≦N value≦60). Additionally, it is suitable for pile construction in urban areas, densely populated residential areas, and indoors due to its low noise and low vibration. This method resolves many issues that have arisen from welded joints, such as changes in construction periods due to weather, reductions in bearing capacity, and various checks like X-rays, significantly improving work speed. 【Features】 ■ A new function that offers speed without welding ■ High precision and low cost ■ High bearing capacity and penetration ability ■ Wide range of support layers ■ Minimal noise, residual soil, and space requirements for reliable construction *For more details, please download the PDF or feel free to contact us.

  • Civil Engineering Method
  • Stakes

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Rotary Press-Fit Steel Pipe Pile "NS Eco Spiral"

Rotary Press-Fit Steel Pipe Pile "NS Eco Spiral"

Re-driving of piles is possible! It can be easily accommodated even in cases with time constraints such as close proximity construction or night work.

The "NS Eco Spiral" is a rotary-driven steel pipe pile that inherits the features of the "Small Diameter NS Eco Pile Method," which accommodates construction without soil displacement and in narrow spaces, while enhancing lateral support performance. By using a compact pile driver to directly screw a steel pipe pile with a wide range of spiral fins into the ground, the fins and the ground behave as a single unit, demonstrating significant lateral support strength. Therefore, when the support layer is deep or unclear, there is no need to unnecessarily extend the pile length. 【Features】 ■ Contributes to shortening construction time ■ Can be removed like a screw by rotating the pile in reverse ■ Compact construction ■ Easy to accommodate even when pile locations are scattered ■ Construction can be paused at any time *For more details, please refer to the PDF materials or feel free to contact us.

  • Civil Engineering Method
  • Stakes

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[Concrete Product Example] Iwate Prefecture: Boundary Stake 75×75×600

[Concrete Product Example] Iwate Prefecture: Boundary Stake 75×75×600

Boundary stakes with SUS metal plates! Plates can also be ordered.

Here is a product example of "Boundary Stake 75×75×600 with Metal Plate" in Iwate Prefecture. We prepared a SUS metal plate measuring 75×75×2t. Since there were no standard specifications for the plate, we arranged for a custom order. The 2mm thick plate was bonded and shipped to Iwate Prefecture. 【Case Overview】 ■Product Dimensions: 75×75×600 ■Installation Location: Iwate Prefecture ■Installation Period: December 2022 *For more details, please refer to the related links or feel free to contact us.

  • Concrete sheet piles and piles
  • Stakes

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[Concrete Product Examples] Mie Prefecture: Concrete Piles and Caps

[Concrete Product Examples] Mie Prefecture: Concrete Piles and Caps

Examples of concrete piles and caps needed for repair work along the railway!

Here are some product examples of "concrete piles and caps" from Mie Prefecture. Products needed for repair work along the railway. If there are products that have not been made before, please contact us. We can accommodate even small quantities. 【Case Overview】 ■Product Dimensions ・Concrete Pile 100×100×H1600 ・Cap 140×100×40×L1550, L1500 ■Construction Location: Tsu City, Mie Prefecture ■Construction Period: April 2021 *For more details, please refer to the related links or feel free to contact us.

  • Concrete sheet piles and piles
  • Stakes

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[Concrete Product Example] Aichi Prefecture: Custom-made Ministry of Land, Infrastructure, Transport and Tourism Piles

[Concrete Product Example] Aichi Prefecture: Custom-made Ministry of Land, Infrastructure, Transport and Tourism Piles

A large and heavy product! With a brass Φ20 embedded plate at the center of the head.

Here is a case study of a "custom Ministry of Land, Infrastructure, Transport and Tourism stake" in Aichi Prefecture. It seems that the existing stake was broken, and we received an inquiry along with photos and documents. As a boundary stake, it is quite large at 200□, resulting in a solid product. Additionally, brass was embedded in the top part, and a plate was attached to the side. The brass and plate were arranged by our company. 【Case Overview】 ■Product Dimensions: Custom Ministry of Land, Infrastructure, Transport and Tourism Stake 200□×H1,000 ・Brass Φ20 embedded in the center of the head with a plate ■Installation Location: Aichi Prefecture ■Installation Period: August 2021～ *For more details, please refer to the related links or feel free to contact us.

  • Concrete sheet piles and piles
  • Stakes

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[Concrete Product Example] Fukui Prefecture: Boundary Stakes for Right Use and Left Use

[Concrete Product Example] Fukui Prefecture: Boundary Stakes for Right Use and Left Use

Custom-made from just one piece! Product dimensions are right side 120□×H600, left side 120□×H600.

Here are examples of "Right and Left Boundary Markers" in Fukui Prefecture. The product dimensions are 120□×H600 for the right boundary marker and 120□×H600 for the left boundary marker. Kawamoto Concrete offers custom orders starting from just one piece. If you have a large quantity, we can discuss delivery times even if they may not meet the deadline. Please feel free to contact us with your requests. 【Case Overview】 ■Product Dimensions ・Right Boundary Marker 120□×H600 ・Left Boundary Marker 120□×H600 ■Installation Location: Sabae City, Fukui Prefecture ■Installation Period: May 2021 *For more details, please refer to the related links or feel free to contact us.

  • Concrete sheet piles and piles
  • Stakes

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[Concrete Product Example] Niigata Prefecture: Ministry of Defense Boundary Stake

[Concrete Product Example] Niigata Prefecture: Ministry of Defense Boundary Stake

A combination of red paint and black text! The text is easier to read.

Here is a product example of the "Ministry of Defense Boundary Stake" in Niigata Prefecture. After seeing our website, a customer contacted us and we produced the "Ministry of Defense Boundary Stake Part 2." The combination of red paint and black text makes the letters easy to read. Our company can customize from just one piece. Painting is done separately. Please let us know your preferences if you have any. 【Case Overview】 ■ Product Dimensions: Ministry of Defense Boundary Stake 120□×H900 Red Paint Black Text Plus Mark ■ Installation Location: Myoko City, Niigata Prefecture ■ Installation Period: May 2021 *For more details, please refer to the related links or feel free to contact us.

  • Concrete sheet piles and piles
  • Stakes

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Level Pointer

Level Pointer

A level pointer suitable for reducing waste!

The "Level Pointer" is a work tool that allows for leveling to be done three times in one go. It effectively utilizes the waiting time for ready-mixed concrete delivery and the time after concrete placement. Additionally, it saves on labor costs and leveling agents. 【Features】 ■ Easy leveling ■ Increased work efficiency ■ Cost savings ■ Quality assurance *For more details, please download the PDF or feel free to contact us.

  • Work tools
  • Safety and consumables
  • Stakes

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Residential foundation pile "X Pile"

Residential foundation pile "X Pile"

Strong and reassuring! Foundation piles for your important home.

The "X Pile" is a foundation pile for residential use that maintains equally high strength in all directions—east, west, south, and north—due to its X-shaped design. By adopting a pre-tensioning method using PC steel wire, tensile force is introduced along its length. The X-shaped design further enhances its resistance to bending, making it excellent in terms of impact resistance during construction and transportation. 【Features】 ■ Advantageous cross-sectional shape ■ Strong against cracking due to being a PC pile ■ Suitable for soft ground measures ■ Pile lengths tailored to ground conditions ■ Reliable quality *For more details, please download the PDF or feel free to contact us.

  • Concrete sheet piles and piles
  • Site and ground investigation
  • Ready-mix concrete
  • Stakes

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Steel pipe pile "Kenma Pile"

Steel pipe pile "Kenma Pile"

Minister of Land, Infrastructure, Transport and Tourism Certification! Achieving high support capacity and low cost! Strong against earthquakes, non-extractable piles! Kenma Pile.

The "Kenma Pile" is a pile that places the highest importance on penetration and constructability. Based on the experience, technology, and achievements cultivated so far, the wing shape of the Kenma Pile was developed to improve penetration into intermediate hard layers. Furthermore, by achieving 100% effective cross-sectional area (AP) in the wing section, it realizes high bearing capacity and low cost. 【Features】 ■ A pile that prioritizes penetration and constructability ■ Achieves one of the highest pull-out forces in the industry, κ65 ■ Enables size reduction design without considering the diameter of the pile shaft, achieving low cost ■ A reliable and easy-to-understand stopping management method *For more details, please refer to the PDF materials or feel free to contact us.

  • Pile and foundation work
  • Concrete sheet piles and piles
  • Piles, caissons, sheet piles
  • Stakes

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Notice for Recruitment of Agents for Steel Pipe Pile Construction Method

Notice for Recruitment of Agents for Steel Pipe Pile Construction Method

To our agents: It is precisely because it is unseen that we are particular about it. To deliver true satisfaction to people and society.

Only companies that have become designated construction contractors can install the "steel pipe piles" of Gaia F1. Are you not handling "steel pipe piles"? The products handled by Gaia F1 are piles that support buildings from the ground up. It is not an exaggeration to say that the safety of the entire structure is entrusted to these piles, which are buried underground. With the concept of "caring about what is unseen," the "Gaia F1 Pile," which prioritizes safety, security, and environmental considerations, was born. This rotary penetration pile method, created to meet modern needs in construction design, has also received certification from the Minister of Land, Infrastructure, Transport and Tourism, providing high support capacity and reliability. *For more details, please refer to the related links or feel free to contact us.

  • Special Construction Method
  • Pile and foundation work
  • Stakes

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H-type PC pile

H-type PC pile

Wall materials for retaining structures using precast PC components that do not require temporary earth retention.

The "H-type PC pile" is a prestressed concrete member with an H-shaped cross-section manufactured in a factory, and it is a construction method for building retaining walls by continuous driving using a three-point pile driver. During construction, it is used as a temporary retaining wall, and during the permanent phase, it is used as the completed structure. The cross-sectional dimensions are available in three types: width 1070(mm) × height 540, 640, 740(mm), and the design standard strength of the concrete is 70(N/mm²). 【Features】 ■ No need for temporary retaining walls ■ Self-supporting wall heights of up to approximately 8.5(m) are possible ■ Rigid connection with base and top slabs is possible ■ Leakage suppression effect for groundwater and other water ■ Drainage effect for rainwater and other sources ■ Low noise and low vibration construction method ■ Shortened construction period on site *For more details, please refer to the PDF materials or feel free to contact us.

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  • Retaining wall
  • Civil Engineering Method
  • Special Construction Method
  • Stakes

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Slide Weight S Test

Slide Weight S Test

We will conduct quality control of the bearing capacity based on the response values of the measuring devices and the amount of pile head settlement.

This service involves freely dropping a weight equipped with a measuring device onto the top of a pile or striking the tip of the pile to estimate the maximum impact load applied to the pile based on the response values from the measuring device. It also measures the residual settlement of the pile and conducts quality control regarding bearing capacity based on the maximum impact load and the residual settlement. It accommodates various small-diameter steel pipe piles. It can solve issues related to the accuracy of ground investigations (such as SWS tests). 【Features】 ■ Compatible with various small-diameter steel pipe piles ■ Simplification of quality testing ■ Reduction of quality testing costs ■ Acquisition of construction technical performance certification *For more details, please refer to the PDF materials or feel free to contact us.

  • Geological Survey
  • Stakes

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Manufacturing of Steel Pipe Piles Using Friction Welding

Manufacturing of Steel Pipe Piles Using Friction Welding

Contributes to cost reduction through material and labor hour reduction. Suitable for mass production with stable joining quality and production system.

We propose the fabrication of steel pipe piles using friction stir welding. This method achieves "full-strength joints" where the strength of the joint surface does not fall below that of the base material due to solid-state diffusion bonding. It allows for rapid joining, significantly improving productivity. In some cases, processing time can be reduced by over 90% compared to complete penetration welding. Additionally, the joint area experiences minimal heat impact, allowing for a reduction in processes. Since bevel processing and backing bars are unnecessary, it also contributes to material savings and overall cost reduction. By managing parameters through machinery, we can consistently provide high-quality products that are not dependent on the skill level of welding operators. 【Features】 ■ The joint strength is "full-strength." ■ Productivity is significantly improved. ■ Joint quality is stable. ■ Products can be supplied with a stable production system. *For product details, please refer to the materials. Feel free to contact us with any inquiries.

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  • Secondary steel products
  • Stakes

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Non-welded joint pile "Pairing Joint"

Non-welded joint pile "Pairing Joint"

Can be used in fire hazard areas! Easy to manage construction and can shorten construction time with non-welded joint piles.

The "pairing joint" is a non-welded joint pile that can be used with all prefabricated piles. It allows for stable construction unaffected by weather conditions such as rain, wind, snow, and low temperatures. Its resistance to bending, shear, and tension is equivalent to that of welded joints. Additionally, since welding is not required, it can be used in sites where flammable gases are likely to be generated or in chemical plants handling combustible materials. 【Features】 ■ Easy construction management, leading to shortened construction periods ■ Unaffected by weather conditions ■ Usable in fire-restricted sites ■ Stable quality due to factory production ■ Joint strength is equivalent to that of welded joints *For more details, please refer to the PDF document or feel free to contact us.

  • Fittings
  • Stakes

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Strengths of Sanpoli: Experts in the waste plastic recycling industry.

Strengths of Sanpoli: Experts in the waste plastic recycling industry.

Both the headquarters factory and the Tohoku factory have obtained JIS certification! We are always striving for thorough quality control.

Since our establishment in 1972, we have been committed to the development and manufacturing of high-quality recycled products, and we continue to achieve steady growth in terms of performance, product variety, and production volume. Both our headquarters factory and Tohoku factory have obtained JIS certification, and we consistently strive for thorough quality control. With the expertise we have cultivated over many years in this industry, we respond to our customers' needs. 【Features】 ■ Since our founding, we have been engaged in the development and manufacturing of high-quality recycled products. ■ Headquarters factory JIS certification obtained ・JIS K 6932 / Recycled plastic signposts / Certification number JQ0607009 ■ Tohoku factory JIS certification obtained ・JIS K 6932 / Recycled plastic signposts / Certification number JQ0608002 ・JIS A 9401 / Recycled plastic central separation blocks / Certification number JQ0610001 *For more details, please refer to the PDF document or feel free to contact us.

  • Other resource recycling
  • Collection and transportation
  • Stakes

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