Calibration of quartzite, granite and hard marble slabs: constant thickness and a perfectly uniform surface

Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.

Checking the thickness and flatness of slabs: a key process for ensuring the final quality of quartzite, granite and hard marble.

Calibration is the stage in which the slabs, after sawing, are brought to a uniform thickness and a perfectly level surface.

This stage, in the natural stone processing cycle, ensures the geometric regularity of the material in preparation for subsequent processing.

Synchronised technologies for a continuous and precise slabs calibration.

The process involves continuous, high-precision processing, made possible by advanced machinery that operates as an integrated system. The calibrating machines use:

  • Diamond heads for removing excess material;
  • Calibration rollers that ensure thickness accuracy;
  • Conveyor belts for the smooth and continuous movement of slabs along the production line.
Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.
Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.
Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.
Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.

Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.
Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.
Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.
Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.

Calibration makes each slab ready for subsequent processing.

Calibration provides a suitable technical foundation for the subsequent application of treatments such as resin treatment, honing process and surface polishing, ensuring:

  • Uniform thickness across the entire surface of the slab;
  • Controlled flatness for stable installation;
  • Visual uniformity of the slabs, with no perceptible discontinuities.

Multifunctional machines for high-performance calibration.

Multifunctional systems for high-performance sizing. For this stage, BIG Graniti uses customised multifunctional machines, which combine calibrating, honing and polishing within a single production platform.

The machines have been customised to meet the company’s specific production requirements, incorporating automatic adjustment functions, thickness detection and continuous slab feed.

Integrated systems for the rectification and quality control of slabs:

  • BigRectify ensures that all slabs produced are perfectly rectified;
  • A photographic quality control system automatically scans every single slab to check that the surface meets the required standards.

Multifunctional machines optimised for production requirements, capable of:

  • Continuous operation with optimised cycles;
  • Minimise material waste;
  • Retain maximum precision even with large volumes;
  • Ensure reproducibility of results across all processed slabs.
Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.
Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.
Calibration of granite, quartzite, hard marble and natural stone slabs. Consistent thickness and uniform surface. Big Graniti Verona, Italy.