The most important tasks of railway transportation are
improvements of high speed comfortableness, and safety.
Turnouts support those tasks and are essential devices
to operate cars safely under the complicating diagram
Sumihatsu uses automatic equipment (up-to-date equipment
including machining center) to realize automatic production
of large sized products, intending to maintain high accuracy
and performance of devices, as the top manufacturer of
turnouts. Furthermore, Sumihatsu encourage research and
developments for manpower saving of railway maintenance
and automation technology.
Is an important device to safely
manipulate traincars. Sumihatsu designs, manufactures, assembles, and delivers them to customers.
Are widely used for Shinkansen,
conventional lines, cranes, elevators, etc.
Sumihatsu manufactures rail fastenings made
of materials for leaf spring and/or bar springs,
and delivers them locally and abroad.
Is made of unsaturated
polyester penetrated polyurethane foam,
and glass fiber, and formed by metal
mold. It is highly evaluated and accepted
by customers with less noise and vibration.
The purpose of turnout with grid sleepers is to reduce the maintenance and to prevent a point switching failure.
We are designing and manufacturing the sleeper of grid structure which uses synthetic sleepers.
We developed the grid sleepers in collaboration with JR-EAST.
We can provide the turnout with grid sleepers to the railway companies.
We are manufacturing 3 types of fitting to prevent creep in rail as follows.
Heel point Clip => this is used for connecting to the rail and heel plate.
Anti-Creeper (bolt type)=>creep in rail is surely received by the sleepers through this device.
Ceramic sprayed clip=>this clip is used to reinforce to creep in rail resistance by increasing rail friction.
We jointly developed LevelKeeper with Railway Technical Research Institute. LevelKeeper prevents loose sleepers that occur at the structural boundary of the ballasted track and can be easily installed without removing the existing sleepers.
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