Crunchers
| 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.
Advantages
- 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.