ソマールゴム Product Lineup

On our website, we introduce our achievements in solving the challenges faced by theme parks. The wheels of high-speed roller coasters, which operate at speeds of 140 km/h and experience gravitational forces of 4G to 6G, inevitably suffer from internal damage due to heat buildup when made from standard polyurethane, leading to delamination or a decrease in surface hardness, resulting in a sticky state. Therefore, by adopting "VULKOLLAN," we developed wheels with extremely high load-bearing capacity, wear resistance, and heat resistance that can withstand high-speed rotation and heavy loads. Please take a look at our website. [Overview of Achievements] ■Challenges - There are no materials that can withstand high-speed roller coasters. ■Solutions - Developed wheels that can withstand high-speed rotation and heavy loads by adopting VULKOLLAN. - Implemented curing to the core material through injection molding, resulting in safer wheels. *For more details, please refer to the PDF materials or feel free to contact us.

On this homepage, we introduce our achievements in solving the challenges of multi-story parking garages. The rotating table has poor dynamic load balance, which places a significant burden on the tire section. As a result, nylon wheels are commonly used; however, due to their very hard material, they produce a "clattering" noise that resonates in the surrounding area, leading to noise issues. By adopting high-rebound elastic polyurethane, we have managed to reduce the noise even for rotating tables with heavy loads. Please take a look at our company website. 【Overview of Achievements】 ■Challenges - The noise from the rotating table is loud. ■Solutions - The noise has been reduced even for rotating tables with heavy loads. - The rotating table can now be operated at night. *For more details, please refer to the PDF materials or feel free to contact us.

On this homepage, we introduce our achievements in solving the challenges faced by copier manufacturers. When using general synthetic rubber for the paper feed rollers of copiers, the evaporation of oil causes changes in the coefficient of friction (μ), making it impossible to achieve consistent paper feeding. Therefore, by using foam urethane produced through our unique method called "independent bubble foaming," we have ensured that there is no change in μ even after long-term use, maintaining feeding accuracy. Please take a look at our company website. 【Overview of Achievements】 ■Challenges - Changes in the coefficient of friction (μ) ■Solutions - By using foam urethane, feeding accuracy is maintained even after long-term use - Developed rollers made of Somar urethane that do not decrease in wear resistance along with feeding accuracy *For more details, please refer to the PDF materials or feel free to contact us.

On this homepage, we introduce our achievements in solving the challenges faced by hospitals. When hospitals introduced MRI machines, they encountered issues with the casters rolling poorly during transport to the installation site, leaving black marks on the floor. This was a concern even during maintenance, which occurred every few years. To address this, we adopted a polyurethane material that is wear-resistant and has high resilience for the casters. This allows for smooth movement even with a few relocations each year, and the polyurethane prevents marks from being left on the floor. 【Overview of Achievements】 ■Challenges - The casters of the MRI leave black marks on the floor. ■Solutions - We used wear-resistant and high-resilience polyurethane for the casters, eliminating flat spots. - Smooth movement is achieved even with a few relocations each year, and no marks are left on the floor. - Due to the specialized nature of the MRI casters, we conducted small-lot production. *For more details, please refer to the PDF document or feel free to contact us.

Somal Rubber Co., Ltd. specializes in "urethane development" and realizes ideals that cannot be achieved with off-the-shelf products through custom-made solutions. We offer over 80 types of urethane that can be tailored to your needs, including hardness, rebound elasticity, wear resistance, and grip strength. By communicating with our knowledgeable sales team, let's turn your ideal urethane into reality through actual prototypes, rather than just theoretical discussions. 【Features】 ■ Over 80 types of urethane available to propose based on customer applications ■ Utilizing a rich variety, we can conduct repeated prototypes while engaging in dialogue with customers to find the optimal solution *For more details, please refer to the related links or feel free to contact us.

Our company leverages "a variety of molding methods" and "a wide range of polyurethane options" to deliver products that meet our customers' needs. By combining appropriate materials and processing techniques according to applications and functions, we achieve high-quality and unique manufacturing. Through our past achievements, we showcase our flexible responsiveness and technical strengths. We invite you to view examples of how we have tackled customer challenges and strived to exceed expectations in product development. For more details, please check the related links. 【Examples (Partial)】 ■[Case Study] Contributed to the development of compact low-floor machinery with high-load polyurethane, changing the norms for logistics AGVs. ■[Case Study] Solved challenges faced by drive wheels of construction elevators, reducing the risk of machine stoppage with high-load polyurethane. ■[Solution Case] Resolved the peeling issue of mecanum wheels, ensuring durability with high-load polyurethane. ■[Solution Case] Transitioned from overseas-produced rollers to domestic production, achieving both trouble response and weight reduction. ■The "heavy labor" of carts is outdated; improved factory work efficiency with casters that have 1.3 times the rolling resistance. *For more details, please refer to the related links or feel free to contact us.

This is a case of urethane rewrapping for wheels used on ceiling cranes in a factory. Previously, ester-based urethane was used, but due to prolonged use, hydrolysis progressed, causing the urethane to deteriorate to the point of crumbling. Therefore, the material was changed to ether-based urethane suitable for the operating environment, and rewrapping was carried out. By enhancing resistance to hydrolysis, the deterioration of urethane was suppressed, achieving a longer lifespan for the crane wheels.

This is a case of changing the material of the tray used to set the objects being blasted in a wet blast device. Previously, synthetic rubber or metal was used, but the surface of the tray gradually wore down due to the repeated flow of a mixture of water and blast media. This particularly caused the area around the holes to be eroded, resulting in an increase in hole diameter, which led to the problem of the set objects falling. Therefore, the material of the tray was changed to highly wear-resistant urethane rubber. By suppressing wear from the blast media and preventing the expansion of the hole diameter, the longevity of the tray and stable blasting processing were achieved.

This is a case of material change for the fingertip components of a robot hand used in an automobile manufacturing line. In robot hands that grip metal parts such as automobile components, the edge of the parts repeatedly contacts the rubber, causing the silicone rubber used at the fingertips to wear out and requiring replacement approximately every two weeks. Therefore, the material was changed from silicone rubber to wear-resistant urethane rubber. This change significantly reduced wear caused by repeated contact with metal parts and greatly decreased the frequency of replacements. In actual usage conditions, it has been operating without issues for over a year since its introduction, contributing to reduced maintenance labor and stable operation of the production line.

This is a case of changing the material of urethane rollers used in a food factory. In an environment where water is constantly applied, hydrolysis occurred with the conventional ester-based urethane. Additionally, mold developed on the surface of the rollers, posing hygiene issues. Therefore, the material of the urethane was changed from ester-based to ether-based, which has excellent hydrolysis resistance. By adding an antibacterial agent, we were able to suppress deterioration due to hydrolysis and the growth of mold, achieving stable use in harsh wet conditions.

This is a case study regarding the selection of wheel materials in the development of new AGVs. During the development phase, we were considering wheel materials that could withstand the load conditions required for the AGV. However, conventional general-purpose urethane rubber could not meet the necessary load requirements, making material selection a challenge. Therefore, we proposed a special urethane, 'SL-1195P,' which is specialized for load-bearing performance. By utilizing its high load-bearing capacity and excellent rolling performance, we adopted it for the AGV wheels, successfully meeting the load requirements set during the development phase.

This is a case of material change for parts used in building maintenance gondolas. Previously, MC nylon was used, but it had issues such as abnormal noise occurring under load and failing to meet the required load performance. Therefore, the material was changed from MC nylon to urethane rubber. By utilizing the unique elasticity and excellent load performance of urethane, the abnormal noise that occurred under load was eliminated, and load performance was improved, contributing to the enhancement of the gondola's specifications.

This is an example of a material change for the paper feed roller used in printers. Previously, foam urethane was used, but issues with paper feeding occurred depending on the type of paper used, making stable transport a challenge. Therefore, the hardness and material of the urethane were changed to match the material and surface condition of the paper being used. By optimizing the friction characteristics with the paper, the issues with paper feeding were resolved, achieving stable transport.

This is an example of improvement due to a change in the manufacturing method of urethane parts used in fluid control equipment. Traditionally, urethane was cast-molded to create blocks, which were then subjected to machining. However, since the air (bubbles) inside the product generated during the casting process could not be detected until machining was performed, defects were discovered after processing, resulting in losses of materials and processing man-hours. Therefore, the manufacturing method was changed from cast molding to press molding. This suppressed the generation of internal air and implemented dimensional adjustments using molds. This resulted in improved yield and reduced manufacturing costs.