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As an automotive parts supplier, Yorozu is always a step ahead in meeting the needs of the times with its unique technology that covers a wide range of applications.
Vehicles have undergone major changes as our needs have continued to change. Suspensions have also evolved along the way, reflecting new technologies and new prodution methods as demands continue for greater performance, less weight, and lower cost. Based on its advanced stamping technology, Yorozu has established a unique method to produce suspensions on a large scale while realizing weight and cost reduction, attracting the worldwide attention. Yorozu was also among the first to establish technologies to develop suspension members and links using new materials in response to the growing concerns about global environment and energy crises. These parts are being supplied to automotive OEMs throughout the world. As a supplier who both proposes and designs, Yorozu quickly responds to worldwide demands with its unique technology, covering a wide range of applications.

Hydroforming technology
By hydroforming, a tube is set in a die and then filled with liquid. Next, the tube is pushed in lengthwise while the liquid pressure is increased, forming the tube into the shape of the die. Cost can be greatly reduced thanks to fewer parts, reductions in welding, jigs, and dies, as well as greater design freedom.
 
Concept of hydroforming
 
Examples of hydroformed parts
 
Hydroform press(5,000t)
Production capacity
Yorozu Tochigi Corporation-- One set
YAT (U.S.)-- Two sets
YTC (tie) --One set
   
Equipment specification (common to all)
  5,000t of model bundle power
Forming 4,000bar (Max)
Bolu Starr 3,150mmx2,150mm
 
New material (aluminum material)
   
Promoting module