GRUNDOMAT P

The GRUNDOMAT soil displacement hammer generation with P (for power), replaces the previous Z-version. This machine generation was developed to meet the customers' requests for easier reversing and even higher efficiency. One main property of the GRUNDOMAT-P-Generation is the improved chisel head system. First, the percussion piston, running ahead in advance to produce a pilot bore in the first cycle, strikes the chisel, like before. This allows the GRUNDOMAT to work with extreme precision, even in stony grounds. Immediately after the stroke on the chisel, the piston also strikes the protective casing directly, which is then pulled in together with the pipes attached. Even resistance peaks and casing friction are easily overcome - therefore the propulsion speed is increased immensely. The two-stroke action principle is an idea of TRACTO-TECHNIK.
 

Switching the GRUNDOMAT models 130P, 145P, 160P and 180P over from forward to backward motion, and vice versa, is performed with a lever of the control unit outside the pit and no longer with the compressed air hose (see photograph). Retaining their full capacity, the smaller types are switched over with the well-established thrust control, which works with a _ twist at the hose. Recommendable accessories: Grundoscope aiming frame and starting cradle, tensioning plate for simultaneous pipe installations and the Unitherm compressed air heater for freezing temperatures in winter. Using ram cone attachments, the GRUNDOMAT soil displacement hammers can also act as rammers for steel pipe installation.

Technical Data

PK = short version

The upsizing diameter depends on the soil conditions, larger pipe diamters on request.

* GRU 130 is available with servo control and with thrust control.

Subject to change! Edition 04/04