Scarab carries a drill system developed by NORCAT. The system has three components; a drill, tranfer unit and crusher.
The drill itself has three key parts; the bit, auger and sample tube. A motor slowly forces the bit and meter-long auger into the soil. The auger is hollow and houses a sample tube, which gets filled in the process.
After drilling, which can take several hours, the auger is retracted and the transfer unit extracts the sample tube. The tube is also one meter long, so the transfer unit must raise it to a height of two meters. The sample is then lowered down onto the adjacent crusher.
Once transfered, the crushing system takes over. The sample tube is vibrated to release soil over rollers. These crush any larger grains down to one millimeter. This fine material accumulates in a chamber until a predetermined amount has been received.