NPK’s newest line of small hammers, the PH series, is designed with over 45% fewer total parts than all previous NPK small hammer lines. Decreasing the number of components causes repair time, and therefore downtime, to be significantly reduced. The improved design starts with a fully sleeved one-piece hammer body, eliminating tie rods that were once necessary for fastening body components together. The restructured valve system is smaller, internal, and highly efficient. Replaceable sleeves ensure the hammer body doesn’t undergo the wear and tear caused by repetitive firing of the piston. Additionally, the PH series “slip fit” style tool bushings are held in place by the retaining pin in the same manner as the tool. Because of this feature, bushings are quickly and easily replaced, even in the field, eliminating downtime due to tool bushing replacement. The PH series hammers are also equipped with our anti-blank firing feature providing longer component life.
1235 lb (560 kg)
6 - 9 U.S. tons
(5.4 - 8.2 metric tons)
1300 ft⋅lb (9 J)
400 - 1000 bpm
