Two recent piling jobs put a pair of our hydraulic impact hammers to the test. Hawaiian Dredging’s Pier 15 job installing 16″ octagonal bearing pile, and Mizak Constructors BART station excavation driving AZ-36 sheets that a competitors mast mounted vibratory failed to drive. Hawaiian Dredging’s job in Honolulu needed a quiet and clean hammer to drive their concrete pile. Our HPSi model 1250 hydraulic impact hammer …
