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Bush-hammering: an ancient art that endures.
Bush-hammering is an ancient technique still in use today. The bush-hammered finish on marble and granite gives the material a:
Bush-hammering a marble and granite surface guarantees high standards of safety and roughness. Today, in fact, it is most commonly used on outdoor surfaces such as squares and paving. It is precisely the roughness of the material with this finish that prevents unpleasant slips.
What is it and how is it used?
First, a bush-hammered finish is achieved using a specific tool called a bush hammer. Its pyramidal carbide tips repeatedly strike the material, creating a uniform roughness. The size of the tips allows for coarse-grained or fine-grained finishes.
Bush-hammering traditionally
Since the Middle Ages, bushhammering has been done using a hammer with pyramidal tips of tempered steel. The stonemason would repeatedly strike the bushhammer against the surface, achieving a rustic finish. This way, the treated material would last over time, preventing unsightly flaking.
Pneumatic tool
The enormous amount of work and time required for traditional bush-hammering has led to constant evolution. Today, stonemasons use interchangeable pneumatic bush-hammers with carbide tips. In 1989, the first roller-type hammer, known as a "roto-bush-hammer," was invented. This system allowed for faster processing times and the ability to work even on thin slabs. Bush-hammering rollers are also available as adjustable plates on angle grinders and angle grinders.
The most used tools
Since 1960, we've worked closely with marble workers and stonemasons to offer quality bush-hammering tools. Below, we've listed the most commonly used ones:
One-piece bush hammer for pneumatic hammer.
Solid tool with widia tips for bush-hammering finishes on marble or granite. These tools typically have a 7.5 mm cylindrical shank.
They are available in two sizes: round and rectangular, with various numbers of tips (from 5 to 64 teeth). The number of teeth determines the desired finishing grain. A coarse finish will be achieved with bush hammers with few tips, and a fine finish with bush hammers with few tips.
Pneumatic tool with retainer.
In this case the difference of this tool is the retaining ring positioned on the steel stem.
Bush-hammering plate for grinders.
A flexible and versatile tool, the plate is available in two sizes: 100/150 mm. The number of tips varies from 10 to 20. The convenience of this plate is the quick replacement of worn parts. The rollers themselves can be replaced by removing two screws on the support shaft. Again, the different tips give a coarse or fine finish to the treated surface.
For further information or custom tools, please contact us at sales@lanordsrl.it.
