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Bush-hammering: an ancient art that endures.
Bushhammering is an ancient technique still in use today. The bushhammered finish of marble and granite gives the material a rustic appearance, a uniform color and hides imperfections.
Bush-hammering a marble and granite surface guarantees high standards of safety and roughness. Today, in fact, it is used, in most cases, on external surfaces such as squares and pavements. It is precisely the roughness of the material with this finish that avoids unpleasant sudden slips.
Bushhammer: what is it and how is it used?
The material with a bushhammered finish is obtained with the use of a specific tool called a Bushhammer. Its pyramidal tips in hard metal repeatedly hit the material giving it a homogeneous roughness. Thanks to the size of the Bushhammer tips, coarse-grained or fine-grained finishes are obtained.
Bush-hammering traditionally
Since the Middle Ages, bushhammering was done using a hammer with pyramidal tips of tempered steel. The stonemason repeatedly hit the Bushhammer on the surface obtaining a rustic finish. In this way the treated material lasted over time avoiding unpleasant flaking.
Pneumatic Bush Hammer
The enormous amount of work and time required by traditional bush-hammering has led to constant evolution. Today, the marble worker uses interchangeable pneumatic bush-hammerers with hard metal tips. In 1989, the first roller bush-hammer called “roto-bush-hammerer” was invented. This system has allowed for speeding up the times and processing even on thin slabs. Bush-hammering rollers are also available in the form of accounting plates on flexible and angle grinders.
Bushhammering: most used tools
Since 1960 we have been working closely with marble workers and stonemasons, offering quality bush-hammering tools. Below we indicate which are the most used:
One-piece bush hammer for pneumatic hammer.
Integral tool with widia tips for bush-hammered finishing on marble or granite. These bush-hammerers usually 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 is what differentiates the finishing grain you want to obtain. You will obtain a coarse finish with bush hammers with few tips, a fine finish with bush hammers with few tips.
Bush hammering with a pneumatic bush hammer with retainer.
In this case the difference of this tool is the retaining ring positioned on the steel stem.
Bush hammer plate for grinders.
Flexible and versatile tool, the bush hammer 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 speed of replacement of worn parts. The rollers themselves can be replaced by removing two screws on the support shaft. Also in this case, the difference in tips gives a coarse or fine finish to the treated surface.
For further information or for custom tools do not hesitate to contact us at the email address: sales@lanordsrl.it
