Wholesale Jurassic Black Granite Manufacturer & Suppliers

Jurassic Black Granite features a distinct petrological structure characterized by superior micro-crystalline density and subtle deep charcoal-to-black mineral depth. Unlike volcanic basalt-based black stones (such as G684), Jurassic Black is a plutonic igneous granite that does not contain porous micro-vesicles or iron nodules prone to rusting over time. It delivers a higher compressive strength (>220 MPa) and more consistent color uniformity across massive block yields compared to Shanxi Black, at a significantly more competitive price point for wholesale commercial projects.

Our standard Minimum Order Quantity (MOQ) for custom cut-to-size orders or gang-saw slabs is one 20-foot full container load (FCL), which equates to approximately 400–450 m² of 30mm thick stone or 600–650 m² of 20mm thick stone. Standard fabrication lead times for 1 to 3 containers are typically 14 to 21 days from shop drawing approval and deposit confirmation. For large-scale projects requiring over 10,000 m², phased shipping schedules are arranged with prioritized quarry block selection.

For outdoor municipal paving, public plazas, and steps, we strongly recommend Flamed, Bush-Hammered (Litchi), or Waterjet finishes. These surface treatments create tactile anti-slip micro-textures achieving a pendulum test slip resistance (PTV) well above safety standards even in wet conditions. For exterior curtain wall cladding, Polished, Honed, or Leathered/Brushed finishes are preferred as they showcase the deep mineral character while shedding water and dirt cleanly under rainwater rinsing.

Dimensional quality control begins at the CNC cutting phase, maintaining a strict tolerance of ±0.5mm on length/width and ±1mm on panel thickness. Diagonal squareness is checked via laser calibration equipment. For color matching, raw quarry blocks are segregated by extraction bench. Slabs undergo computerized optical scanning followed by a mandatory factory dry-lay procedure where tiles are laid out across 500 m² floor zones to ensure harmonious tonal transitions across project elevation grids.

Yes. Our processing workshop is equipped with 5-axis CNC machining centers capable of executing complex architectural stone detailing directly from CAD/BIM shop drawings. We routinely produce pre-drilled pin holes, undercut anchor slots (for mechanical cladding fixings), 45-degree mitered edges with epoxy bonding, radius kerbs, bullnose pool coping, and custom engraved drainage gutters.

We provide full documentation required for international import compliance and structural engineering sign-off. This includes chemical analysis, physical test reports performed under ASTM C615 / EN 1341 standards (covering compressive strength, flexural strength, water absorption, abrasion resistance, and density), CE Certificates, ISO 9001 quality management certification, and ISPM-15 wood crate fumigation certificates. Third-party pre-shipment inspections by SGS, TÜV, or Bureau Veritas are fully supported.

Sourcing directly from an established factory in the Shandong stone cluster (Rizhao) eliminates trading company markups, delivering a direct cost savings of 15% to 25%. Furthermore, working direct gives contractors direct communication with factory engineers, enabling real-time shop drawing revisions, direct factory dry-lay video approvals, custom packaging customization, and reliable material replacement guarantees in the rare event of transit damage.

All cut-to-size products are packed in robust, fumigated solid wood crates lined with thick polyethylene foam sheeting and plastic film to prevent moisture ingress. Slabs are secured in heavy-duty welded steel A-frames or reinforced wooden A-frames. Individual polished faces are separated by protective film to prevent abrasion scratches. Crates are tightly braced inside 20ft ocean containers using heavy-duty nylon strapping and timber chocks to withstand rough sea transit conditions.