The hydraulic hammers of NPK impress with power and reliability. The nitrogen driven piston ensures constant and high energy per blow - not dependent upon blow rate. Thus, these hammers are the perfect choice for demanding applications.

• All models adaptable to underwater operations
• Shock absorbing rubber cushions (from GH-7) absorbs vibration and protects integrity of excavator boom an arm
• Designed with sealed gas (N²) chamber - no rubber bladder accumulators
• Constant energy per blow maintains high breakout force - not dependent upon blow rate
• Rapid and easy chisel replacement - reduces downtime to a minimum
• Replaceable tool bushings prevent war to main chisel holder body and enhances the life of the breaker
• Lubrication channeling allows installation of lubrication system
• Replaceable cylinder bushings to prevent wear of the hammer body. Easy to overhaul.  

For more detail please refer to NPK hydraulic hammer brochure(pdf).

NPK demolition and dismantling grabs are versatile, 360° hydraulically rotatable attachments manufactured from wear resistant Hardox 400. Together with the fully protected hydraulic components NPK grabs ensure highest efficiency in demolition, loading, sorting and recycling operations. All grabs have a flat top plate, which allows a simple construction of all quick hitch facilities. The Hardox 500 clam cutters are interchangeable; optional side closure panels for loading operations are available. Furthermore, the rotation, opening and closing speed is adjustable for the bigger models. Check valves prevent a decrease in closing force.

• Fully protected hydraulic components
• Interchangeable clam cutters (HB500)
• Frame made of high strength Hardox steel
• 360° hydraulic rotation, no drain line required
• Large jaw opening
• Easy maintenance
• in one position easily greaseable
• replaceable pin bushings
• cage construction of the jaws, made of Hardox® 400
• main pins equipped with dust seals
• High closing force
• Adjustable speed of rotation an open/close function (DG-16 and higher)
• Double shock valve protects motor (DG-16 and higher)
• Pilot check valve standard from DG-16 and higher.

For more information please refer to NPK demolition grab brochure(pdf).
For more information on small grabs for compact excavators please refer to NPK small demolition grab brochure(pdf).

Main advantage of the NPK cruncher is the standard integrated booster system, a unique feature designed by NPK. This booster system automatically activates whenever the jaws meet resistance. Compared to competitive crunchers without such a booster, the pressure intensifier system has a relatively low oilflow and produces faster cycle times and more crushing strength. Additionally other excavator`s functions remain uninfluenced.

The integral booster allows a compact body design, reduces the total weight of the attachment and affords ease of maintenance. The cruncher is specifically designed to reduce oversize concrete pieces from ground level after they have been demolished. Simultaneously the reinforced steel will be separated from the concrete on site. This results in a significant reduction of transport costs and recycling becomes much more efficient.

• Standard integrated booster system that automatically activate when the jaws meet resistance
• Easy Maintenance
• Bolt on teeth for easy teeth replacement
• Large jaw opening
• Piston rod fully protected against damage
• Low oil flow needed - other functions of the excavator are not influenced
• Short opening/closing times (2,6 sec) in unloaded condition, produces up to 23 cycles a minute
• G-21R, U-21JR, U31JR and U-45 JR: 360° rotation for precise positioning
• High productivity and extreme power
• Standard rebar cutters
• no additional pressure reduction is required in the hydraulic system

For more details please refer to NPK concrete cruncher brochure(pdf).

As a special feature of NPK also offers 3 concrete cruncher with integrated electro magnet.

• Powerful electromagnet 2,4 - 3,4 KW
• Saving manpower and time on site
• Same cruncher parts as G series

For more details please refer to NPK concrete cruncher with electromagnet(pdf).

Main advantage of the NPK crusher is the standard integrated booster system, a unique feature designed by NPK. This booster system automatically activates whenever the jaws meet resistance. Compared to competitive crunchers without such a booster, the pressure intensifier system has a relatively low oilflow and produces faster cycle times and more crushing strength. Additionally other excavator`s functions remain uninfluenced.

• Only NPK offers exclusive integrated booster system that automatically activates when jaws meet resistance
• New SV-series designed with double cylinder and double booster
• low weight - long reach
• large jaw opening (up to 2 Meter)
• Piston rod and hoses fully protected inside the crusher`s frame
• slime-line design
• Fast opening/closing times (from 2,3 sec in unload condition), produces 26 cycle times a minute
• S-16XCR and bigger 360° hydraulic rotatable
• X-1 to X-7 360° mechanical rotation
• Maintenance friendly
• Reinforced steel cutters are standard
• Low oil flow needed - other functions of the excavator are not influenced
• Excellent stability even for high-lift demolition
• no additional pressure reduction is required in the hydraulic system

For more details please refer to the NPK crusher brochure(pdf).  

 For more details please refer to the NPK sheet piler brochure(pdf).

Main advantage of the NPK multiprocessor is the standard integrated booster system, a unique feature designed by NPK. This booster system automatically activates whenever the jaws meet resistance. Compared to competitive processors without such a booster, the pressure intensifier system has a relatively low oilflow and produces faster cycle times and more crushing strength. Additionally other excavator`s functions remain uninfluenced.

• Only NPK offers exclusive integrated booster system that automatically activates when jaw mets resistance
• On-site versatility is optimized by the availability of interchangeable jaws
• Manufactured from high strength, abrasion-resistant steel
• Reinforced shield protects cylinder rods
• Full 360° power rotation provides an effective angle of attack for any job wherever the location
• Cost effective - far more economical than buying 3 different applications
• no additional pressure reduction is required in the hydraulic system
• Fast opening/closing times

For more information please refer to NPK Multiprocessor brochure(pdf).  

NPK compactors are designed and built to meet today’s demands for greater jobsite productivity, expanding and enhancing the versatility of your excavator. NPK -the leader in trench compacting technology - delivers the industry’s greatest impulse forces with overall superior performance through hydraulically operated rotating action. Greater vibration forces generate stress waves in granular or loose soil material, bringing the soil’s air to the surface and packing the particles closer together. Greater impulse action works together with the carrier’s downward forces to compact cohesive clay-type soils. The result is faster, safer, more efficient compaction than other carrier attachments.

• Less excavator moves via 180° rotating mounting plate (from C-4C)
• Hydraulic hoses pass only at the rear side to the outside and are thus protected
• The standard integrated oil flow dividers and pressure relief valves protect against any damage caused by changing excavators
• Rubber shock absorbers to minimize vibrations to the operator
• The automatic oil bath lubrication makes routine lubrication by hand unnecessary

For more information please refer to NPK compactors brochure(pdf).

The NPK products from the X-Y-Z series have been designed to meet the increasing needs and requirements for renovations and refurbishments. It is mostly about applications inside buildings with smaller carrier devices.

For more information please refer to NPK X-Y-Z Concept brochure(pdf).