Description
A bridge saw runs a fixed head along a rail over a stationary slab, which means the blade works at a constant feed all day. Fabrication shops do not judge a granite blade on how quickly it gets through one slab — they judge it on square footage before the segments are spent, and on whether the sawn edge needs work afterwards.
Premium diamond on a soft bond
Granite is about the hardest material a diamond blade meets in the trade, and hardness calls for a soft bond. The matrix has to break down quickly enough that blunted diamonds release and sharp ones take their place. A hard bond on granite glazes over, and the operator ends up pushing the head rather than letting it cut. This is a premium grade blade — higher diamond concentration and better crystal quality than a general stone blade — because on a bridge saw segment life is what sets your cost per square foot.
Diameters and running conditions
Supplied in 14″, 16″, 18″ and 20″. Wet only. Granite throws off serious heat, and a saw running short on flow will overheat the core and cup the blade permanently. Keep water on both faces and check the flow before every slab, not every shift.
For softer stone and marble a continuous rim leaves a better edge — see the Stone & Marble Blade. Everything else is in stone, marble and granite.
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