The SILENT PILERTM is a hydraulic pile press-in and extraction machine invented by GIKEN in 1975. It represents the world's first practical application of the "press-in principle", and works by clamping onto several piles or sheet piles already embedded in the ground, then uses the extraction resistance force as a reaction force to push the next pile into the ground with a static load employing hydraulic pressure.
In general, construction machinery is large because the weight of the machinery itself stabilises the machine body. In this situation, if you wish to apply a force of 100 t, then you need a machine weighing more than 100 t, otherwise the machine itself would lift off the ground. Naturally, such machinery becomes incredibly large, and at the same time less practical.
But with the SILENT PILERTM, the machine clamps onto several piles already embedded in the ground, then uses the extraction resistance force to stabilise its own body and push in the next pile with a static load employing hydraulic pressure. Because the extraction force is converted into the press-in force, the SILENT PILERTM is able to exert a force of greater than 100 t despite it having a lightweight body. And because piles are pressed-in using a static load, there is no resulting vibration or noise.
Vibration and noise-free, lightweight and compact machine enables construction under various constraining conditions.
It is used in wide and varied construction environments: roads, railways, airports, energy facilities, water and sewerage systems, rivers, harbours, coasts, sea, erosion control, and general construction.