Corporate Profile
Kyokuto Rubber Co., Ltd.
Corporate Guide
Corporate Guide
Product Information
Product Information
Outline of Technology
Molding process for large-diameter
rubber expansion joints
Since commencement of manufacturing in 1951, our rubber expansion joints have been used in various domestic and international industries, and have received high acclaim. Our traditional technology cultivated through extensive manufacturing history has been passed down from skilled workmen through generations, and craftsmen currently continue to follow those teachings. Manufacturing of large-diameter rubber expansion joints is our specialty. We are acknowledged as being the top domestic manufacturer of large-diameter rubber expansion joints having produced the 4, 000 mm diameter in 1976, the 4, 200 mm diameter in 1983, and the 4, 400 mm diameter in 2003.
Various belt-type rubber
expansion joints
Belt-type rubber expansion joints are the result of rubber, cloth material, and rope vulcanized using feed-type technology. This feed-type vulcanization is a traditional technology built up through our long history of molded rubber production. For products that are over 30 meters in length, portions are repeatedly fed and vulcanized after preliminary molding.
