ゼニヤ海洋サービス List of Products and Services

The floating dock "pontoon" is highly safe, exceptionally durable, and offers a wide variety of combinations to meet all needs. It has a wealth of experience in marinas, fishing ports, lakes, ponds and dams, rivers, and abandoned boat countermeasures. 【Usage Examples】 ◎ Marinas ◎ Fishing Ports ◎ Lakes ◎ Ponds and Dams ◎ Rivers ◎ Abandoned Boat Countermeasures, etc. *For more details, please request materials or view the PDF data from the download.

• Tunnel construction
• Airport facilities
• Coastal construction

We protect water gates, intake facilities, and river structures from driftwood and debris flowing into dams and reservoirs, preventing disasters. We offer a wide range of options tailored to the environmental conditions and purposes of the installation site. There are models designed to guard the intake of dams and models that collect driftwood and debris floating on the water surface. By installing a navigation gate, it becomes possible for boats to pass through upstream and downstream of the net area. Number of achievements: 1,027 cases (as of June 30, 2008)

• Watergate
• Tunnel construction
• Airport facilities

"Zenifloat X" is a modular floating dock made by connecting box-shaped units. It is easy to move and ideal for bridge inspections and seismic reinforcement work. Three advantages of "Zenifloat X": [1] Ultimate cost reduction ⇒ Easy to move and assemble [2] Outstanding stability ⇒ Ensures the safety of workers [3] Maximum convenience ⇒ Usable even in low overhead spaces The material used is recycled polypropylene. It has buoyancy stability and weather resistance equivalent to steel and concrete floating docks. Additionally, it does not require large machinery for transportation and installation, achieving a short construction period. Rental options are also available as needed. *For more details, please download the catalog or contact us.

• Scaffolding and Support Materials
• Foundation construction
• Crane and others

Traditionally, a gap was created between the mooring rollers and the piles to accommodate construction errors in the piles, and this gap was the cause of the floating bridge's instability. By using a 3-ton type cushioning material, the gap in the roller section can be eliminated, thereby reducing the instability of the floating bridge. This can be applied not only to newly constructed floating bridges but also to existing ones.

• Other flooring materials

The cushion joint type 65 connects floating bridges and other connected objects that experience relative displacement in a flexible yet robust manner. It can absorb shocks when tensile loads are applied.

• Subsidiary materials

It is a new product effective in preventing abrasion between mooring lines and driftwood stops (net areas) and the ground.

• Tunnel construction
• Dam construction

It is a connection type of box unit.

• Crane and others

This is a connection type of box unit. A free layout can be easily achieved. There are two types of freeboard (height from the water surface): approximately 15 cm and approximately 30 cm. The one with approximately 15 cm has a weight of about 420 kg, so it can be unloaded with a crane truck.

• Temporary Construction Materials
• Concrete Machinery
• Construction machinery leasing and rental

It is a large floating dock with a hybrid structure that incorporates a steel reinforcement frame inside prestressed concrete.

• River construction
• Coastal construction
• Harbor Construction

We have developed a device that can eliminate the excessive proliferation of blue-green algae on the water surface by sending the surface water to deeper areas. This is the most rational method for addressing blue-green algae. Additionally, it can also deliver the large amounts of oxygen that are present on the water surface to the bottom layers where it is most needed, thus solving the problem of low oxygen levels. This product is registered with NETIS (No. KK-110033-A). ◆ Clear product introduction animations and blue-green algae elimination simulation videos are available, so please feel free to contact us. ◆ Principle of Neo Loop "Large convection in deep areas" The surface water transported to the bottom by the water supply pipe is warm, so it immediately rises after exiting the discharge outlet. However, as it rises, it mixes with the surrounding water and spreads horizontally at a water depth where it reaches the same temperature as the surrounding water. This phenomenon is called density flow, and it is particularly noticeable in the initial state when the device is first activated or in large lakes. Even when mixing progresses and stratification becomes less distinct, this phenomenon remains, resulting in significant convection in the mid-depth and deeper layers.

• Tunnel construction
• Other civil engineering works

It is compatible with both solar-powered and commercial power sources. Due to significant cost reductions, it is recommended as a type of ferry gate that can replace traditional non-powered ferry gates. * Registered with the Ministry of Land, Infrastructure, Transport and Tourism NETIS KT-060133.

• Tunnel construction
• Airport facilities
• River construction

It is a new mooring system for floating structures, a towable sinking anchor. 【Features】 ○ It is more economical compared to conventional methods as it does not use a floating crane barge. ○ It accurately sinks to a fixed point on the coordinates due to horizontal control by the rotating wings. ○ Equipped with friction spikes on the base plate, it achieves weight reduction by enhancing frictional force. ○ Since the mooring lines are pre-set, there is zero underwater construction. ○ Re-floating is easy, making relocation and removal operations economical. ○ It is registered with the Ministry of Land, Infrastructure, Transport and Tourism NETIS. (Registration number: KT-060009-A) ● For other functions and details, please download the catalog.

• Other civil engineering works
• Crane and others

1) Surface greening... Greening and landscaping of water surfaces 2) Creation of habitats... Feeding, nesting, spawning, and resting places for birds, fish, insects, etc. 3) Water quality purification... Purification through the absorption of nutrients by plants and microorganisms, and suppression of phytoplankton through shading effects. 4) Wave attenuation effect... Prevention of bank erosion as a wave-dissipating structure.

• Garden stones, sculptures, fountains, ponds
• Airport facilities
• Other civil engineering works

This is a water quality conservation facility that raises deep seawater and releases excess air into the atmosphere, sending oxygen-rich water to the depths to promote water quality improvement. 【Features】 ○ It prevents the generation of hydrogen sulfide in the deep layers of the reservoir and the leaching of nutrients from the bottom sediment through the development of temperature stratification and the reduction of deep seawater. ● For other functions and details, please download the catalog.

• Other civil engineering works

This is a water quality conservation facility that circulates water in the lake to promote water quality improvement. 【Features】 ○ By installing a circulation device at the bottom or mid-layer of the reservoir, water in the lake is circulated, which suppresses phytoplankton, increases dissolved oxygen, and promotes water quality improvement. ● For other functions and details, please download the catalog.

• Other civil engineering works

This is a device that takes in only the clear water after rainfall and releases it into the river downstream of the dam. 【Features】 ○ The turbid water (red water) generated when rainwater mixes with red soil becomes clearer over time, and only this clear water is taken in and released into the river downstream of the dam. ○ Being a floating type, it can always take in water close to the surface. ○ It does not require electricity or power. ○ The depth of water intake can be adjusted freely. ● For other functions and details, please download the catalog.

• Tunnel construction
• Airport facilities
• Other civil engineering works

"Ecologka" is a wood-plastic composite recycled material that dramatically enhances water resistance and durability while retaining the natural texture of wood. Its material properties combine the advantages of both wood and plastic, and its eco-friendliness as a recycled product makes it an ideal material for exterior and public landscape materials, as well as interior materials, being highly regarded in various fields.

• Special flooring/outdoor
• Privacy louvers and louver shutters
• Artificial wood

This is a modular barge that is widely used in water civil engineering works. 【Features】 ○ Since the required shape of the vessel can be assembled as desired, it can be used as various types of barges such as crane barges, pile driving barges, dredging barges, and equipment transport barges. ● For other functions and details, please contact us.

• Piles, caissons, sheet piles
• Pile and foundation work
• Crane and others

This is a device that generates water flow by drawing in surrounding water through the rotation of a propeller. 【Features】 ○ By drawing in surrounding water while generating water flow, it is possible to create a more effective circulation flow with less output. ○ Due to the special shape of the propeller, it can generate a powerful water flow with low energy consumption. ○ The strong water flow provides a reliable mixing effect, allowing for effective responses to various issues in the water area. ○ Simplification of installation and maintenance, high energy conversion efficiency, and reduction of running costs can be achieved. ● For other functions and details, please download the catalog.

• Other civil engineering works