Cutting stone and surfaces on a CNC bridge saw
Cutting granite, marble, quartzite, quartz, porcelain and travertine on a CNC bridge saw: blade choice, feed rates, chipping control and silica safety.
Cutting granite on a CNC bridge saw
Granite cuts well on any rigid CNC bridge saw with a segmented blade matched to the granite class. Typical straight-cut feeds run about 1.5–5 m/min in 20–30 mm slabs, depending on blade, granite hardness and machine power.
Cutting marble on a CNC bridge saw
Marble is soft and cuts several times faster than granite, but veined slabs crack easily in handling. Run higher peripheral speed (about 40–55 m/s), a harder-bond blade, and plan cuts and piece handling around the veins.
Cutting quartzite on a CNC bridge saw
True quartzite is harder than granite and is the slowest natural stone to cut. Expect about 0.7–1.8 m/min straight-cut feed in 20–30 mm slabs with a soft-bond quartzite blade at low peripheral speed, and treat the dust as close to pure silica.
Cutting engineered quartz on a CNC bridge saw
Engineered quartz cuts faster than most granite and is very consistent slab to slab, but the dust can be over 90% crystalline silica and the resin binder burns if the cut runs hot. Cut wet, at about 2–5 m/min depending on thickness, blade and machine.
Cutting porcelain and sintered stone on a CNC bridge saw
Porcelain and sintered stone need a continuous rim blade made for these materials, slow feed (about 0.5–1.8 m/min straight, depending on thickness) and a 40–50% feed reduction at entry and exit. Most failures come from residual slab tension and vibration, not from the blade.
Cutting travertine on a CNC bridge saw
Travertine is a soft, porous limestone that cuts fast with marble parameters. The difficulties are voids, factory fill and the bedding direction: plan cuts around vein-cut or cross-cut slabs, and support the stone where voids weaken it.
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