In order to ensure safety in job-sites, the target has been to improve and simplify the conveying system. This need had been expressed by some of our most important customers, especially in Europe and Asia.
With the new system, the excavated material is loaded onto the flight to be transported from the top of the casing to the base of the rig through a Spoil Chute. It is composed by a telescopic column of pails connect to each other by a rope and moved by means of a proper winch.
In addition, our Technical Department has also development a lower double roller auger-cleaner that works thanks to gravity by using its own weight; but with the option to be hydraulically operated. The new spoil collecting and conveying system is characterized by simplicity and the fact that it does not hinder the drilling stroke, which can still reach the maximum depth afforded by the machine.
The great performance of the rig is guaranteed thanks to the double independent rotary head that, assisted by the crowd-force of the crowd-winch system, assures the best production rate. Finally thanks to the new 8,5 m auger extension, a maximum drilled depth of 28,6 m and a max cased depth of about 20 m can be reached. These results, combined with a maximum 1,200 mm diameter piles, allow Soilmec to be leader in this technology.