Driven cast-in-situ
A tube equiped with extraction collar and removable tip is installed into ground with a hydraulic hammer. As the target depth has been reached, the needed reinforcement is installed. Then, fresh concrete is laid into the tube, which is then extracted with a specific extraction device. By utilizing the tapping feature of the hammer, the concrete is compressed.
Junttan’s high-quality cast-in-situ machines are able to provide outstanding stability. As the extraction strength needs to be substantial, reliable load control system is required. With Junttan paying close attention to productivity and reliability of the machines as well as to safety at work, these features have been comprehensively taken care of.