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 tunnel excavation
  • Trenching
  • And many more!




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 440-232-7900 or email to sales@npkce.com.


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

NPK offers a wide variety of accessories for hydraulic hammers:

  • Tools
  • Autolube Systems
  • Dust Suppression Kits
  • Grease
  • Quick Disconnects
  • Underwater Kits


For more about all types of hammer accessories, visit the Hammer Accessories Page.

Visit the Hammer Accessory Publications page for related 
sales brochures, operators manuals and sales bulletins.

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 440-232-7900 or email sales@npkce.com.

Image Model Working Weight Recommended Carrier Weight
PH06 220 lbs 1.2 - 2.2 US tons
PH07 275 lbs 1.5 - 2.75 US tons
PH1 500 lbs 2 - 3.5 US tons
PH2 610 lbs 3 - 5.5 US tons
PH3 990 lbs 4 - 8 US tons
PH4 1,235 lbs 6 - 9 US tons
GH6 2,500 lbs 11 - 15.5 US tons
GH7 2,730 lbs 14 - 21 US tons
GH9 3,420 lbs 20 - 28 US tons
GH10 4,690 lbs 23 - 33 US tons
GH12 6,135 lbs 28 - 43 US tons
GH15 7,300 lbs 33 - 50 US tons
GH18 8,470 lbs 35 - 57 US tons
GH23 13,295 lbs 50 - 75 US tons
GH30 15,665 lbs 50 - 93 US tons
GH40 18,850 lbs 80 - 130 US tons
GH50 25,070 lbs 120+ US tons