Hydraulic Hammers

Hydraulic Hammers | Hydraulic Breakers

A better design that combines efficiency, reliability and serviceability.

  1. Excellent power-to-weight ratio
  2. Unique gas-charged piston maximizes hydraulic hammer efficiency
  3. Simple, two-moving-parts design for reliability
  4. Separate ports for the NPK Autolube (auto greasing) system and an airline for underwater use
  5. Bottom tie rod nuts for easier serviceability (GH Models)
  6. Quick-change tool system with single round retainer pin
  7. Variety of tool configurations available
  8. Replaceable cylinder sleeves for easy, economical rebuild
  9. Anti-blank fire feature virtually eliminates dry firing for long hydraulic breaker life

Vibration control that increases operator comfort to increase efficiency

Standard on all medium and large NPK hydraulic hammers, our shock-absorbing mounting bracket uses special heavy-duty rubber mounts to absorb shock, recoil, and impulse vibration. The unique one-piece design eliminates the need for mechanical springs and overly heavy mounting brackets. The net result is minimization of machine wear and improved operator comfort for greater reliability and productivity.

Simplified lubrication for greater reliability

A grease port is provided for automatic and/or manual greasing of the demolition tool. This prevents damage or premature wear caused by a lack of grease.

Full serviceability of the industry's easiest, lowest cost, body-rebuild system

Hydraulic breakers are not meant to have an easy life. They occasionally need to be rebuilt. When the hammer body is involved, NPK's replaceable sleeve design can reduce your costs by a factor of five to ten!


NPK dedicated mounting kits enable hydraulic breakers to be mounted as (determined by model size):

  • mini excavator attachments
  • skid steer attachments
  • backhoe attachments
  • wheel loader attachments
  • full size excavator attachments

See the Attachment Wizard to determine which hydraulic attachments are compatible with your carrier.


Potential applications include:

  • Rock breaking
  • Slag breaking
  • Reducing oversize material
  • Concrete breaking and recycling
  • Road construction
  • Sidewalk and curb construction
  • Commercial / selective demolition
  • C&D recycling / sorting
  • Underwater applications
  • Site excavation
  • Scaling and tunnnel excavation
  • Trenching
  • And many more!



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 sales@npkce.com.


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.

Visit each model page below for specifications and additional images.  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 sales@npkce.com.

Image Model Working Weight Recommended Carrier Weight
PH06 230 lbs 1.2 - 2.2 US tons
PH07 265 lbs 1.5 - 2.75 US tons
PH1 423 lbs 2 - 3.5 US tons
PH2 487 lbs 3 - 5.5 US tons
PH3 825 lbs 4 - 8 US tons
PH4 1,064 lbs 6 - 9 US tons
GH6 2,390 lbs 11 - 15.5 US tons
GH7 2,620 lbs 14 - 21 US tons
GH9 3,840 lbs 20 - 28 US tons
GH10 4,430 lbs 23 - 33 US tons
GH12 5,940 lbs 28 - 43 US tons
GH15 7,110 lbs 33 - 50 US tons
GH18 8,430 lbs 35 - 57 US tons
GH23 9,240 lbs 50 - 75 US tons
GH30 13,500 lbs 50 - 93 US tons
GH40 17,000 lbs 80 - 130 US tons
GH50 24,910 lbs 120+ US tons