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The Quarrying Process: How We Get Our Slabs

The Quarrying Process: How We Get Our Slabs

Upon a quarrying site having been determined, large machinery is brought in to excavate large blocks of stone. By exposing the top face and one side of the mountain, the remaining sides are freed using several methods. The most common of these involves using a diamond wire saw.

Drilling and blasting holes into the top and bottom of the block can make space for a diamond-impregnated steel wire to be threaded through with the ends looped together. As the engine spins the wire through and around the block, the wire tension gradually pulls tighter and eventually cuts through the entire block. Wire sawing can cut 35 to 40 square feet of granite per hour.

Once the block is freed, cranes lift the blocks up and place them onto a truck awaiting transport to the manufacturing plant. By-products and waste from the quarries are sold to other industries and used for such things as fillers for cement.

The Manufacturing Process

After quarrying, the stone blocks are shipped throughout the world for further processing. A typical factory will size the bocks by placing them on large rotary or gang saws to cut into 2 cm (3/4”) or 3 cm (1 ¼”) thicknesses.

Diamond Rotary Saw: A diamond rotary saw is usually equipped with an 11-foot diameter solid steel blade impregnated with diamond segments. More than 45 gallons per minute of fresh water is used to cool the saw blade, which can cut an average of 23 to 25 square feet per hour.

Gang Saw:
Gang saws use dozens of thin blades to simultaneously cut 20 to 40 slabs at once. After slicing the block into slabs, the panels are manually separated at the bottom from the block.

The slabs are now ready to be polished to a high gloss by an automated polishing machine, which grinds, hones and buffs stone surfaces with water and polishing bricks. Fed through an automated system, the slabs travel through several polishing steps with multiple heads all working at the same time. A full polish is achieved within minutes and a final spray washer cleans and blow-dries the slabs to unveil a mirror-like finish.

 

 

 
Featured Testimonial

Diko & team,

We love our new marble fireplace. We now have a place to hang out Christmas stocking!

Thank you so much for the beautiful craftsmanship!