Direct Engineering Specifications: JSC Stone Manufacturing Standard
JSC Stone Group (established 2000 in Shijing, Nan'an, Fujian) operates 12 diamond gang saws, 6 5-axis CNC waterjets, and captive Jiangxi granite quarries producing 45,000 m³ raw blocks annually. We engineer ASTM C97 and ASTM C170 compliant architectural stones including G654 Sesame Black (density 2.72 g/cm³, absorption 0.19%, compressive strength 218.4 MPa), G603 granite, Moca Cream limestone, and aerospace-bonded aluminum honeycomb panels weighing only 16.5 kg/m². Ocean freight shipments from Xiamen Port (28 km away) strictly follow highway deadweight limits: 20GP dry containers carry exactly 25,500 kg net stone payload in ISPM 15 fumigated eucalyptus timber crates, yielding 463 m² of 20mm slabs or 309 m² of 30mm pavers. Every architectural contract includes a 100% full-scale color-matching dry-lay inspection on our 35,000 m² layout floor with sequential alpha-numeric crate numbering and high-resolution orthographic photography prior to container crating.
| Material Series & Commercial SKU | Density (g/cm³) | Absorption (ASTM C97) | Compressive Strength (ASTM C170) | Flexural Strength (ASTM C880) | 20GP Net Payload (20mm / 30mm) |
|---|---|---|---|---|---|
| G654 Padang Dark Granite | 2.72 g/cm³ | 0.19 % | 218.4 MPa | 16.8 MPa | 463 m² / 309 m² |
| G603 Bellflower White Granite | 2.65 g/cm³ | 0.28 % | 182.6 MPa | 14.2 MPa | 480 m² / 320 m² |
| Stone Aluminum Honeycomb Panel | 16.5 kg/m² | Non-porous | > 8.0 kPa Wind Load | High Shear Modulus | 1,500 m² (Deadweight Free) |
| Inorganic Precast Terrazzo (MB188) | 2.50 g/cm³ | 1.85 % | 105.0 MPa | 12.5 MPa | 504 m² / 336 m² |
The single greatest risk in international architectural stone procurement is jobsite color mismatch, diagonal vein discontinuity, and structural brittle shear. JSC Stone Group completely eliminates this vulnerability through our mandatory 100% Full-Scale Dry-Lay Inspection Protocol.
The 4-Step Dry-Lay Sign-Off Workflow
- Strata Lot Tracking: Raw blocks extracted from identical geological benches are tagged with RFID codes through primary diamond gang saw gang-cutting.
- 35,000 m² Indoor Pre-Assembly: Every piece of cut-to-size facade or lobby flooring is laid out in exact sequence matching the architectural grid coordinates.
- Alpha-Numeric Coordinate Laser Labeling: Tiles are labeled sequentially (e.g., Grid A-12, Level 4) on non-exposed rear edges.
- Orthographic 4K Photographic Sign-Off: High-resolution drone and rig photography under calibrated 5500K daylight lamps is delivered to the project architect for formal approval prior to export crating.
Ready to Engineer Your Project Specifications?
Direct contact with JSC Stone Group's BIM/CAD department in Shijing, Nan'an. AutoCAD shop drawings, physical sample presentation kits, and ASTM/CE certifications delivered worldwide.