Conventionally prefabricated piles have been pounded or vibrated into the ground. Such methods inevitably generate excessive noise and vibration because of their reliance on percussive or vibratory energy. Taking the initiative in solving this problem, Mr. Akio Kitamura, who had already founded Giken as his own contracting company, turned his attention to the resistance to extraction of installed sheet piles. Thereby he discovered the press-in principle, which utilizes reaction force derived from fully installed piles as a counter weight to hydraulically press-in subsequent piles. In succeeding years, Giken developed the world\'s first SILENT PILER press-in machine to make the press-in principle practicable in the field. Since the piles are pressed-in, the Silent Piler does not cause any damage to the environment including neighboring structures and local residents through noise and vibration. Thus the ultimate solution for non-pollutive piling was pioneered and the Press-in Method set off on its endless innovation to establish a new standard for a true revolution in construction methods. 

The World's First Press-in Machine:

 In 1975, the first operational Silent Piler was initially designed and built by Giken for its own use to provide a means of silent and vibration-free pile installation. This is the world's first piling equipment to hydraulically jack a pile utilizing the reaction force of fully installed piles (The PRESS-IN principle).

Continuous Development of Silent Piling Technology:

 The superior press-in principle developed by the first Silent Piler has been improved on every subsequent model. Accordingly the current Silent Piler incorporating the most up to date technologies has achieved a 70% weight reduction with much higher performance.  

Application for Various Shapes and Materials:

 Adopting the most appropriate method for the project, new types of the Silent Piler that can press-in prefabricated piles in all different shapes or materials such as tubular sheet piles and concrete sheet piles have been developed and are already in practical use.

Environment Conscious Operation and
Higher Performance for Sustainable Construction:


Since development of the first Silent Piler in 1975, substantial number of projects has been completed with scientific empirical analysis and feedback collected from each project site. The newest Press-in machines adapt to the wider shapes in construction materials which have been developed to be more efficient. Such equipment uses advanced environmentally sound construction practices through systematic design while minimizing the overall environmental impact.