Our 140 pound [63.5 kg] automatic hammer gives you extremely consistent and accurate Standard Penetration Test results, meeting all ASTM-D-1586 requirements. That’s because there are no ropes or cables to impede the free fall of the weight. The hammer swings from stored position to on-hole position. Since raising and lowering is done hydraulically, set up is quick and almost effortless.

Automatic SPT Hammer Calibration- annual energy measurements in accordance to ASTM test method D4633, have been conducted on all of our hammers. Please go to SPTCAL.COM for more information.