Marble blocks are saw cut into slabs. Small marble blocks will be processed by simple disc saws to produce marble slabs. Medium and large marble blocks will be processed by gang saws and will be typically used to produce standard 2-cm thick one-side-polished marble slabs. Marble from the upper benches of the open-pit production contain small defects, such as holes, cracks and fossils. Therefore, marble blocks produced during the early stage will often need to be treated with resin to ensure final product quality. This will double the polishing time needed as the slabs will need to be polished twice. As marble quality improves with mining depth, this added polishing step will be reduced to a limited level.
Our marble slab production processes include saw cutting, drying or adhibiting repairing or masking, curing, polishing and warehousing. The following diagram sets forth our marble slab processing process and the time required for each process:
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Saw Cutting: Marble blocks are cut into slabs with circular saws, sand saws or general saws. | |
Drying, Adhibiting Repairing or Masking: For cracked stones, stones with holes or easily breakable stones, we use resin gluing or masking to increase their abrasion resistance. | |
Polishing: Polishing is a process by which material is precisely removed from a workpiece (or specimen) to produce a desired dimension, surface finish or shape. | |