六菱ゴム List of Products and Services

As a measure to strengthen national resilience against the frequent natural disasters in recent years, Rokubishi Rubber is proposing various "flood prevention products." Starting with the "Shell Cover II," which prevents flooding from ground openings, we also offer the "Seal Cover," a water stop device for wall penetration piping, and the "Shield Door," a watertight door. The flood prevention products developed by our seal manufacturer protect critical equipment from tsunamis and heavy rainfall. 【Product Lineup】 ■ Hatch Water Stop Device: Shell Cover II ■ Penetration Water Stop Device: Seal Cover ■ Watertight Door: Shield Door ■ Water Stop Temporary Wall: Hexa Gate Plug *For more details, please refer to the related link page or feel free to contact us.

We would like to introduce our "Hexagate Plug." It allows for water stop confirmation after installation. It features an easy-to-open and close manhole structure with a pin insertion mechanism operated by a handle. It can be used for temporary storage of rainwater main lines in shield tunnels, as well as for safety measures during branch connection work and backflow prevention during heavy rainfall. 【Features】 ■ High water stop sealing mechanism ■ Water stop confirmation possible after installation ■ Easy-to-open and close manhole structure ■ Manhole water stop mechanism *For more details, please refer to the PDF document or feel free to contact us.

The "Hexa Seal Cover" prevents flooding into facilities containing important equipment from tsunamis and heavy rainfall. It can accommodate displacements from various directions. Seal covers of 100A or larger are equipped with reinforced fabric, providing excellent pressure resistance. Additionally, it is a one-cut product, allowing for post-installation. 【Features】 - Absorbs displacements with rubber to prevent wall cracks - Can be customized for internal pressure (indoor) or external pressure (outdoor) as needed - Capable of accommodating displacements from various directions - Seal covers of 100A or larger have reinforced fabric for superior pressure resistance - One-cut product allows for post-installation *For more details, please refer to the PDF document or feel free to contact us.

The "Hexa Shield A" is a watertight door from a seal manufacturer that protects critical equipment from flooding. Unlike gasket types, it uses a self-sealing lip seal, which allows for stable water-stopping performance without the need for torque management. 【Features】 ■ Protects critical equipment from flooding ■ Can be installed after construction ■ Compatible with internal and external pressure ■ Stable water-stopping performance (water stop secured with latch fixation) *For more details, please refer to the PDF document or feel free to contact us.

The "Slide-type Shell Cover" is a safety cover that ensures stable and high water-stopping performance by using a self-sealing lip seal mechanism. By equipping a heavy-duty lid, which is designed to withstand various disasters, with casters, it can be easily opened and closed by a small number of people. Installed at the openings of underground structures, it protects them from risks such as flooding due to storms and tsunamis, and fire spread from nearby fires. 【Features】 ■ Caster mechanism: Easy to open and close ■ Self-seal: Exhibits high water-stopping capability ■ After installation: Water-stopping performance can be confirmed *For more details, please refer to the PDF document or feel free to contact us.

This product is a closing plug used for blocking the openings of various pipelines. It is utilized in various fields to prevent the intrusion of foreign objects during plumbing work and to prevent the leakage of liquids and gases from the pipelines. Due to its simple and lightweight design, it offers excellent workability and can be quickly attached and detached as needed, greatly contributing to the reduction of labor hours. This product effectively expands the opening by sandwiching a rubber ring with a C-shaped cross-section between two inclined iron plates. 【Features】 ■ Easy operation without tools ■ Cost-effective with rubber ring replacement *For more details, please refer to the catalog or feel free to contact us.

The "TUBE SEAL" expands (inflatable) by being pressurized with a fluid (air, water, oil, etc.), sealing gaps and demonstrating its sealing function. It can seal large gaps and can follow the irregularities, distortions, misalignments, and vibrations of the sealing surface. Additionally, it allows for pressure management and on/off adjustments via remote control, and the sealing surface pressure can be adjusted through pressure management. 【Features】 ■ Capable of sealing large gaps ■ Can follow the irregularities, distortions, misalignments, and vibrations of the sealing surface ■ Allows for pressure management and on/off adjustments via remote control ■ Sealing surface pressure can be adjusted through pressure management ■ Specifications can be designed separately according to application *For more details, please refer to the PDF document or feel free to contact us.

"RIP-TUBE" is a special rubber tube with pressure resistance, constructed using a laminated structure reinforced with fabric. By applying pressure (air, water, etc.) to the tube, it expands and can be used for various applications such as space blocking materials and sealing materials. Our company can manufacture it in ring-shaped or straight forms to meet your needs. 【Features】 ■ Laminated structure using reinforced fabric ■ Usable for various applications such as space blocking materials and sealing materials ■ Can be manufactured in ring-shaped or straight forms to meet your needs *For more details, please refer to the PDF document or feel free to contact us.

The "EMG Seal Cover" is designed to be installed retroactively around the outer circumference of existing rubber expansion joints without modifying the existing joints. The seal case, divided into sections around the circumference, is fixed to the existing flange using mounting brackets. By using and installing it in conjunction with rubber expansion joints used in large plants such as nuclear power plants and thermal power plants, it is possible to temporarily prevent water leakage caused by the rupture of rubber expansion joints during an earthquake. 【Features】 ■ Ensures the safety of pipelines ■ Capable of absorbing displacement during earthquakes (130mm) ■ Can be retrofitted (no modification of existing joints) *For more details, please refer to the PDF document or feel free to contact us.

"RIPP" is an entrance seal device with two types of portal ring shapes: "end flat shape" and "end special shape." It features a self-sealing type starting with "Type-A (Automatic)," as well as "Type-B (Breakthrough)" for reaching and pulling out, and "Type-C (Compression)" for starting and reaching. Please feel free to contact us when you need assistance. 【Features】 ＜Type-A (Automatic)＞ ■ Self-sealing type for starting ■ Additional tubes can be added to enhance water-stopping capability ■ Examples: - Simultaneous backfill injection pipe section, straight section of rectangular shield, reverse R section of DOT and MF, lower part of large-diameter shield, full circumference * For more details, please refer to the PDF document or feel free to contact us.

In recent years, due to the impacts of climate change, weather disasters have become more severe and frequent, and there are concerns about future large-scale disasters such as the Nankai Trough earthquake and the Tokyo metropolitan area earthquake. At the same time, the aging of infrastructure is expected to accelerate in the future, necessitating various countermeasures. Rokubishi Rubber is making daily efforts to develop and provide products that can be of some help to society. This time, we would like to introduce the developed products for disaster countermeasures against natural disasters, along with examples of their installation and product performance. [Contents of the published article] ◆ Waterproofing openings installed above ground for easy opening and closing ◆ Quick reference chart explaining the properties of rubber [Supplementary data] ◇ Exhibiting at the Sewerage Expo 2025 Osaka ◇ Date: July 29 (Tuesday) - August 1 (Friday), 2025 Location: Intex Osaka, Hall 5A (Piping Materials Zone), Booth No. 5-207 ◇ Exhibiting at the Mini Waterworks Expo ◇ July 18 (Friday) - Toyama July 24 (Thursday) - Fukushima July 29 (Tuesday) - Kochi August 5 (Tuesday) - Saitama *We are currently offering a free quick reference chart on rubber properties! This material can be checked via "Catalog Download." Please take this opportunity to view our products.

The "Flex Rubber Seal: Ω Type" is installed between segment tunnels constructed using the shield method, absorbing complex stresses and displacements caused by earthquakes or improper subsidence, ensuring the safety of the tunnel. It can absorb various stresses and displacements. It has excellent pressure resistance due to the fabric-reinforced rubber. 【Features】 ■ Installed between segment tunnels constructed using the shield method ■ Absorbs complex stresses and displacements caused by earthquakes or improper subsidence ■ Ensures the safety of the tunnel ■ Capable of absorbing various stresses and displacements ■ Excellent pressure resistance due to fabric-reinforced rubber *For more details, please refer to the PDF materials or feel free to contact us.

Rokubun Rubber's industrial rubber products are active in various fields such as iron and steel, shipbuilding, gas, energy, civil engineering, railways, and pharmaceuticals. Rubber products, being elastic materials, hold infinite possibilities that cannot be matched by other materials. We will continue to strive to provide our customers with even safer and more secure products, challenge new initiatives as a manufacturer of industrial rubber, and focus on the development of new products. We kindly ask for your continued support and encouragement. 【Business Activities】 ■ Manufacturing and sales of industrial rubber products, other rubber products, industrial resin products, and other resin products. *For more details, please refer to the PDF document or feel free to contact us.