A granite processing plant is a facility where raw granite blocks are cut, shaped, polished, and finished into slabs, tiles, countertops, monuments, or other products for construction and decoration. Below is a detailed breakdown of the granite processing workflow:
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1. Granite Processing Plant Workflow
# (1) Raw Material Receiving & Inspection
– Granite blocks are transported from quarries to the plant.
– Quality checks are performed (color consistency, cracks, defects).
# (2) Block Cutting (Primary Sawing)
– Wire saws or gang saws cut large blocks into slabs of desired thickness (typically 2cm, 3cm).
– Diamond-tipped blades are used for precision cutting.
# (3) Resin Application (Optional)
– Some slabs undergo resin treatment to fill natural fissures and enhance durability.
# (4) Slab Polishing & Calibration
– Automatic polishing machines grind and polish surfaces to a glossy/matte finish.
– Calibration ensures uniform thickness.
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# (5) Trimming & Edge Cutting
– CNC machines or bridge saws cut slabs into tiles, countertops, or custom shapes.
– Edges can be bevelled, rounded (bullnose), or customized.
# (6) Quality Control & Grading
– Visual inspection for color consistency and defects.
– Slabs are categorized based on quality (Premium, Standard, Commercial).
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# (7) Packing & Shipping
– Slabs/tiles are packed in wooden crates or A-frames for protection.
– Finished products are shipped to distributors, fabricators, or construction sites.
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2. Key Machinery Used in Granite Processing
| Machine | Function |
|———————-|————-|
| Wire Saw / Gang Saw | Cutting raw blocks into slabs |
| Block Cutter | Trimming irregular edges |
| Polishing Machine | Smoothing and shining surfaces |
| CNC Router | Precision cutting for countertops/monuments |
| Edge Profiler | Shaping edges (e.g., ogee, waterfall) |
| Resin Line | Applying epoxy resin for reinforcement |
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3. Waste Management & Sustainability
– Slurry Recycling: Water and granite dust are filtered and reused.
– Scrap Utilization: Small pieces are crushed for terrazzo or landscaping.
– Dust Control: Modern plants use vacuum systems to minimize airborne particles.
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