Stone circular saw
With Stone circular saws are natural stones formatted. These are machines that drive circular saw blades by means of electric motors. The saw blade diameter can range from about 20 cm to about 500 cm. The saw blades have a steel core on which diamond-studded segments (called disks) are soldered. The discs wear out and can be re-soldered onto the steel core of the saw blade. The water-cooled saw blade cuts its way through the stone slabs or stone blocks by advancing (approx. 2 to 3 m per minute) and lowering (approx. 2 to 3 cm).
One differentiates in:
- Circular log saws (also called block saws ) are mostly used in the prefabrication of tombs. They cut raw blocks with saw blades with diameters of around 2.5 to 3.0 meters. They either have a semi-automatic or a CNC control .
- Bridge saws (also called production saws ) cut panels and slices to size. This type of machine is called a bridge saw because the machine body, called the support, is moved on a metal traverse (bridge) that is outside the dirty water area. This limits the corrosion of the metal machine parts.
Different saw blade diameters are used depending on the production profile of the stonemasonry. Saw blades with a diameter of 20 to 40 cm are used for panel production, saw blades around 40 cm are used for tomb production and diameters of up to 120 cm are used for restoration tasks. The bridge saws in the stone processing companies are controlled either electrically or electronically. Radial cuts and profile production are easily possible with this type of machine if they have interfaces to CAD programs. There are also stone circular saws for special purposes:
- Multi-blade saws are multi-blade saws for the production of tiles and panels in particular
- Notching saws saw notches in tranches
- Head saws saw panel strips to the appropriate size (stonemasons refer to the side boundaries as heads)
- Fuchsschwanz saws natural stone tiles with saw blades lined up one after the other
- Tagliabloccki (also called a partial block saw) saws stone strips from raw blocks and not just tranches
In addition, there are stone saws which use straight saw blades to cut massive blocks of stone; These are gang saws and there are wire saws which, as the name suggests, format natural stone with ropes.
Stone saw technology
- Reiner Flassig: Tool, machine and equipment knowledge. In: Educational center for the stonemasonry and sculpture trade (Ed.): Steinmetzpraxis. The manual for daily work with natural stone. 3. Edition. Ebner, Ulm 1995, ISBN 3-87188-139-2 .
- Klaus Grewe : The relief representation of an ancient stone saw machine from Hierapolis in Phrygia and its significance for the history of technology. In: Martin Bachmann (ed.): Construction technology in ancient and pre-ancient Asia Minor. International conference, 13. – 16. June 2007 in Istanbul (= Byzas. Vol. 9). Ege Yayınları, Istanbul 2009, ISBN 978-975-807-223-1 , pp. 429–454, ( digitized version (PDF; 2.0 MB) ( Memento from May 11, 2011 in the Internet Archive )).