Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Sep 24, 2025～Oct 21, 2025
This ranking is based on the number of page views on our site.
61～75 item / All 92 items
Breaking away from on-site casting!
Yamax's large PC concrete products Revolutionary change in the common sense of on-site casting! Split production and on-site assembly enable flexible design.
We offer sizes ranging from 240mm to 10m, and we can propose earthquake resistance, functionality, and various construction methods according to your needs.
Our Calvert products are widely used in various projects such as urban sewers, agricultural drainage ditches, underground passages, and culverts for road crossings, utilizing environmental creation technology that supports urban functions.
This is a large box culvert that can accommodate angled configurations. It can handle an internal width of 5 to 12 meters, an internal height of 2 to 7 meters, and angles from 60° to 90° (in 5° increments).
The FA box is a construction method that combines precast components divided into three sections with cast-in-place concrete to create a large cross-section box. By segmenting the top slab and side walls, it becomes easier to accommodate "slant angles." The precast components are designed as a slab structure, while the bottom slab is cast on-site, resulting in a cost-effective large box. The use of loop joints allows for easy integration of the precast components, facilitating construction and shortening the construction period. Additionally, using PCA wing walls can further reduce the construction time.
Our original box culvert
■It can be installed in a top-down manner. ■Standard sizes are from 0.3m wide × 0.3m high to 0.6m wide × 0.6m high. For specifications other than the above, please consult us.
A box culvert equipped with a special rubber ring at the joint section to enhance seismic performance.
■There are two types, K-type and T-type, depending on the required performance. 【K-type】 It has water-tightness that can withstand a water pressure of 0.06 MPa under level 2 seismic motion in non-liquefiable, non-inclined ground conditions. 【T-type】 It has water-tightness that can withstand a water pressure of 0.06 MPa under level 2 seismic motion. ■By absorbing ground displacement at each joint of the product, it is possible to reduce the stress generated in the structure and minimize the amount of pull-out and bending angle occurring at each joint. ■The special rubber ring has a two-layer structure, with soft rubber covered by hard rubber on the outside, providing excellent followability, compression recovery, and wear resistance. ■High water-tightness can be achieved with the special rubber ring alone, eliminating the need for internal joint work.
A box culvert divided into a top slab component and a bottom slab component.
■Among large box culverts, it is applied to relatively small cross-sections ranging from 4.0m to 6.0m in width. ■The components manufactured in upper and lower sections are integrated using mechanical joints and other methods.
A box culvert composed entirely of precast components, divided into a top slab member, side wall members, and a bottom slab member.
■ It is applicable to large box culverts with a cross-section width ranging from 5.5 m to 10.0 m. ■ The components manufactured in sections are integrated using mechanical joints and other methods.
PC box culverts that contribute to the labor-saving and speeding up of construction.
PC box culverts are designed with prestressed concrete structures (using PC steel bars for transverse reinforcement) for the top slab and bottom slab, which are directly affected by variable loads (live loads). This design eliminates the occurrence of cracks, a common drawback of reinforced concrete products, and also enhances resistance to impact and repeated loads.
User-friendly unified standards
Standard shape dimensions for the publication "Guidelines for Road Earthworks and Culvert Works" by the Japan Road Association.
![[Construction Example] River Improvement Work: Installation of Box Culvert](https://image.www.ipros.com/public/product/image/050/2000693409/IPROS43394985905806343025.png?w=280&h=280)
Clear in terms of strength! Using "GPL soil retention" and "GPL long support" in the rainwater box culvert installation work!
We would like to introduce a construction case of installing a new box culvert next to a river (drainage) that is overflowing. The total height of the box culvert to be installed, including the crushed stone foundation height and the concrete base height, is approximately 2,500mm. Since the top of the box culvert will be at almost the same height as the ground level (GL), the cut beam of the GPL retaining wall must be above the GL, and the opening height must be secured to be at least 2,500mm. Additionally, a trench width of W=4.6m must be secured. The challenge was to meet these three points, but under the current site conditions, we were able to meet both product and strength requirements with the "GPL retaining wall." 【Equipment Used】 ■ Aluminum sheet piles ■ GPL retaining wall ■ Hydraulic four-sided beams ■ Fence *For more details, please refer to the PDF document or feel free to contact us.
Large Split Culvert "Two-Part Box Culvert"
This is a segmented precast box culvert designed to alleviate limitations due to size and weight arising from the increase in product size.
Streamlining the construction of apron drainage ditches! Construction can be carried out without being affected by material procurement or weather conditions.
The "EP Base Panel" is a product that uses precast concrete for the apron section, which is typically constructed with cast-in-place concrete during the installation of boundary blocks. Since everything is precast, the site can be opened immediately after installation. Additionally, it eliminates the need for tasks such as pouring and leveling concrete, allowing for completion with just the installation of panels and blocks, thereby contributing to labor savings. 【Features】 ■ Precast concrete apron ■ Dramatically shortens and simplifies the work process ■ Immediate site opening after installation ■ Contributes to labor savings by completing with installation ■ Can be constructed without being affected by material procurement or weather conditions *For more details, please refer to the PDF materials or feel free to contact us.
The legs are made of aluminum casting! Introducing a backrest type kamado bench equipped with a windscreen and grill.
We would like to introduce our kamado bench 'MBR-BS15KM'. The size is 1690W × 538D × 701H, and it features a backrest type with a seat board made of NA wood in sandy brown. The legs are made of aluminum cast with an acrylic baked finish (C.G), and the windbreak and grill are made of stainless steel. 【Features】 ■ Backrest type ■ Seat board made of NA wood in sandy brown ■ Legs made of aluminum cast with an acrylic baked finish (C.G) ■ PC foundation (can also accommodate RC foundation) *For more details, please refer to the PDF document or feel free to contact us.
Remove the bolts from the foot section and move the bench part! Attach the windscreen and ashtray to the grill to complete.
We would like to introduce the "Kamado Bench <Hinoki/NA Wood>" that we handle. It can accommodate two 55-liter stockpots, allowing for the preparation of soup for over 300 people in about an hour and a half. The included windbreak prevents the spread of flames and enhances safety during cooking. This product emphasizes the convenience of the kamado function while valuing comfort for everyday use. 【Features】 ■ Safety specifications with windbreak ■ The removed bench can be used as is ■ Compatible with low-construction PC foundations ■ Armrests can be attached *For more details, please refer to the PDF document or feel free to contact us.
Except for the top board, the frame gives a less oppressive feeling! Its compact size also allows it to be used as a side table.
The "Resol RAFF Round Table 40cm" is a garden furniture piece characterized by its sleek frame design that allows for good airflow. It can be used as a small center table surrounded by 2 to 3 chairs, and when placed beside a chair, it also serves as a side table. This compact low table is versatile, suitable for small gatherings or individual use. It has undergone testing by a third-party organization and meets general public use standards, making it suitable for various public facilities such as international airports, landmarks around the world, and famous restaurants and hotels. 【Features】 - A versatile garden table that works well as both a main and side table - Suitable for a wide range of indoor and outdoor settings - Made from weather-resistant resin, allowing for permanent outdoor placement - Resistant to dirt, most stains can be easily wiped off with water - Approved for public use *For more details, please refer to the related links or feel free to contact us.
