Working Weight

3,840 lbs

1,740 kg

Recommended Carrier Weight

20 - 28 US tons

18.1 - 25.4 metric tons

The GH9 hydraulic hammer is compatible with excavators in the 20-28 ton range.  Visit the Attachment Wizard to see which hydraulic breakers are compatible with your carrier!



Hydraulic Hammer Service Videos  Hydraulic Hammer Operation Videos  Hydraulic Hammer Photo Galleries  Hydraulic Hammer Publications

Visit and subscribe to NPK's YouTube channel for hydraulic hammer operation and service videos and videos of hydraulic breakers in action!  

Visit NPK's photo website for searchable hydraulic hammer photo galleries!

Visit the Hydraulic Hammer Publications page for sales brochures, operators manuals, and service bulletins.  If you require a service manual or would like a hard copy of any other manual, please contact the Sales Department at 800-225-4379 or email to


Videos de servicio

Visita y suscríbete al canal de YouTube de NPK para videos de instrucciones de servicio para martillos hidráulicos.

NPK AUTOLUBE SYSTEMS are designed to automatically provide a supply of grease to the hammer tool bushing - increasing tool bushing life by reducing tool bushing wear.  NPK offers both carrier mounted and hammer mounted options.  Due to its compact design, the hammer mounted autolube system can be installed directly onto the hammer. This design ensures that the autolube system is always with the hammer, great when sharing a hammer between several carriers.


Autolube Publications

Visit the Autolube Publications page for
sales brochures and operators manuals.


Find a Dealer

Additional Images:

Impact Energy Class 3,000 ft lbs
Impact Frequency 500 - 670 bpm
Oil Flow 40 - 53 gpm 150 - 200 lpm
Operating Pressure 2,600 psi 180 bar
Tool Diameter 5 in 126 mm
Tool Working Length 24 in 608 mm