WIRTGEN cutting tools for cold
recyclers and soil stabilisers


Cutting tools

Genuine WIRTGEN cutting tools are an essential part of your machine. As the market leader in this technology, we offer you perfectly coordinated, high-performance cutting systems. To ensure that this remains so in the future, we continuously revise and upgrade all our components.

WIRTGEN cutting tools impress their users with highest productivity levels, maximum service life and low operating costs.

Generation Z

Highlights

GENERATION Z round-shank picks are distinguished by unique product properties that above all enable users to significantly reduce their operating costs. Thanks to their adapted shank design and optimized carbide tip geometry with a reinforced carbide base, the picks in this product line are designed to withstand high impact loads and are therefore the ideal solution for recycling and soil stabilisation applications. The relatively large steel body volume compared to conventional picks and the reinforced wear plate deliver the longest possible service life for tools and optimum protection for the top part of the toolholders in applications involving abrasive materials.

Carbide tips with maximum fracture toughness
Steel body with optimised wear volume
Pick shanks with improved fracture toughness
Reinforced wear plate with optimised geometry
Reinforced version of the field-proven WIRTGEN clamping sleeve
Carbide mix:

In combination with the reinforced carbide base, the carbide mix with a high cobalt content of 7% ensures outstanding durability of the carbide, even in situations with extremely high impact loads. In view of these unique properties, the universal picks of the GENERATION Z series are the ideal choice for all cold recycling and soil stabilisation applications.

Recommended uses

Soil stabilisation applications

Cohesive soils/milled material generally contain abrasive (grinding) materials that flow around the carbide tip and the pick head during the cutting process. In such cases, wear to the steel body dominates and therefore limits the service life of the pick. Here, the carbide tip plays an important role by deflecting material away from the steel body (pick head) and reducing its wear.

In the case of soils interspersed with rocks or boulders, it is advisable to use round-shank picks with a cylindrical tip (or a W6C tip). In this case, the fracture toughness of the carbide tip is the decisive factor, as suddenly occurring high impact forces must be deflected.

When the shanks of round-shank picks are subjected to extreme impact stresses due to larger rocks and boulders, the top parts of the toolholder system can be replaced to allow the use of round-shank picks with a shank diameter of 25 mm.

Cohesive soil

Slightly cohesive soil with small to medium pieces of rock

Applications
Cold recycling and pulverising

In the course of road rehabilitation projects, the round-shank picks penetrate below the base layer or even deeper into the ground. Depending on the structure of the road surface and the materials / additives used, it must be assumed that a certain proportion of abrasive (grinding) stone with low grain size and sometimes tough binder course materials will be encountered. As high cutting forces are required when cutting such layers, it is advisable to use carbide tips with a higher cutting capability (e.g. W6). The size of the carbide tips used should be appropriately adapted as the abrasiveness of the material increases. The use of a cylindrical variant of the carbide tip is recommended when larger rocks or chunks are present.

Photo: Asphalt surface layer on a layer of small gravel

WCC milling tools

Highlights

Due to their tool geometry and construction materials, WCC cutting tools are perfect for mixing cohesive soils interspersed with large rocks or boulders. They have extremely wear-resistant carbide cutting edges that, due to the exceptional strength of the material, exhibit extremely high fracture toughness and consequently offer outstanding resistant to impacts. Depending on your application, WCC milling tools might be a practical supplement to your existing programme of round-shank picks with conventional carbide tips.

Extremely high fracture toughness of the carbide cutting edge
Large wear volume in the shoulder section
Solid chip-breaking web
Reliable HT22 interface

WCC milling tools and Generation Z

The extremely tough carbide cutting edges of WIRTGEN Compact Carbide (WCC) milling tools make them particularly suitable for stabilising cohesive soils interspersed with large pieces of rock. Choosing WCC tools as an alternative to traditional round-shank picks makes very good sense in such situations.

WCC performance rating

Recommended uses

Tabular overview

Applications

When the cutting tools are expected to encounter extreme impact stresses due to massive pieces of rock, the top part of the toolholder system can be replaced to enable the use of the WCC milling tool. Thanks to its enormous resistance to impacts, this brings considerable advantages when handling large pieces of stone.

Extremely abrasive supplementary gravel.

Highly cohesive soil interspersed with stones.

Gravelly soil with a high proportion of abrasive stone.

HT22 quick-change toolholder systems

Highlights

PERSUASIVE ARGUMENTS

Maximum possible impact load, and in extreme cases also shear load, due to revised toolholder shank geometry and optimised heat treatment.

  • Lower maintenance overheads, as the pressure screw of the HT22 toolholder system needs to be tightened only at intervals of 500 machine operating hours.
  • Better bottom part protection due to larger wear volume in the shoulder area of the top part of the toolholder ensures longer service life of the individual bottom parts and the entire milling drum.
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Recommended uses

Milling and mixing rotors

Maintenance and replacement of toolholders