|Model||Excavator weight (ton)||Operating weight (kg)|
|Cruncher G70||6 – 10||690|
|Cruncher G120||10 – 17||1165|
|Cruncher G-18JX||17 – 22||2150|
|Cruncher G-28J||25 – 38||2960|
|Cruncher G-25JEH||19 – 28||2650|
|Cruncher G-35JEH||29 – 48||3550|
|Cruncher G-45EH||45 – 50||4500|
|Cruncher U-21JXR||19 – 28||2325|
|Cruncher U-31JXR||29 – 48||3455|
|Cruncher U-45JR||45 – 50||4560|
G-series: The secondary concrete cruncher
The NPK® G-series cruncher are specially designed to reduce oversized concrete pieces from a 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.
U-series: The primary and secondary concrete cruncher
The NPK® U-series cruncher shows important differences compared to the NPK® G-series: one big center tooth and a center cutter (U-21JXR) Because of the center tooth, all forces are concentrated to one point, which makes the U-cruncher act also as a crusher. Besides that, the U-21JXR and U-45JR have a relatively longer cutter for cutting light steel structures, besides rebar. Another advantage is the 360 degrees hydraulic rotation (R), allowing great manoeuvrability. Together with the center tooth and cutter the U-cruncher is an ideal tool for crushing and cutting walls, floors and light steel structures, such as apartments, reinforced walls, etc.
High speed – extreme power
Like all NPK® crushers and crunchers, the G- and U- series have the standard integrated booster system, a unique feature designed by NPK®. This booster system automatically activates whenever the jaws meet resistance. This pressure intensifier system has a relatively low oil flow and produces faster cycle times and more crushing strength. Additionally, other excavators functions remain uninfluenced. The integral booster allows a compact body design, reduces the total weight of the attachment and affords ease of maintenance.
Bolt on teeth
Several NPK Crushers have a easy replaceable Tooth Plate:
“J”-Type models have a replaceable tooth plate on the arm.
“X”-Type models have a replaceable tooth plate on the frame.
“JX”-Type have both.
- Standard integrated booster system that automatically activates when the jaws meet resistance.
- Center tooth: more crushing power.
- Hydraulic rotation 360° for precise positioning.
- High productivity and extreme power.
- Standard center cutter on U-21JXR for rebar and light steel structures.
- No additional pressure reduction is required in the hydraulic system.