Crunchers

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®s U-series cruncher shows important differences compared to the NPK®s G-series: one big center tooth and a center cutter (U-21JR) 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-21JR and U-45R 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.

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-21JR for rebar and light steel structures.
• No additional pressure reduction is required in the hydraulic system.