Sourced directly from our strategic quarries across Shandong and verified reserves across China. Every anti-parking ball and architectural component undergoes CNC dimensional calibration and monolithic integrity testing.
Traffic balls and anti-parking spheres serve dual functions in modern urban master plans: pedestrian-vehicular demarcation and hostile vehicle containment. Sourced from dense crystalline intrusive igneous rock, natural granite provides the compression resistance, inertia, and atmospheric resilience unmatched by synthetic composites.
A standard 600mm solid granite sphere (such as G603 Sesame White or G654 Sesame Black) yields a volumetric mass of approximately 300 to 320 kg. When anchored via subsurface rebar steel cores into concrete footing, it absorbs kinetic dissipation exceeding 75 kJ, effectively halting low-to-mid velocity perimeter intrusions without hazardous fragmentation.
With an average compressive strength ≥ 131 MPa and petrographic quartz/feldspar interlocking compositions, our granite traffic spheres resist road de-icing salts, severe freeze-thaw degradation cycles (DIN EN 12371 compliance), and heavy petrochemical stains commonly observed in urban commercial drop-off zones.
Unlike painted cast iron bollards that corrode or tubular plastic delineators that suffer UV discoloration, flame-treated, bush-hammered, or diamond-sawn granite integrates seamlessly with classic and parametric architecture while satisfying municipal heritage zoning restrictions worldwide.
Evaluating solid natural granite spheres versus reinforced precast concrete products reveals significant variance in life-cycle cost (LCC) and total cost of ownership (TCO). Precast concrete relies on Portland cement paste that succumbs to carbonation, spalling, and moisture ingress within 7–12 years in freeze-thaw zones.
Rizhao Haichen Stone Co., Ltd. combines quarry-direct extraction at Shandong Stone Industrial Park with automated 5-axis robotic carving and CNC milling stations, achieving micron-level sphericity and bulk volume scalability.
Diamond multi-wire cutting profiling lathes shape blocks into exact spheres with radial tolerances kept within ±1.5mm, eliminating erratic irregularities standard in primitive hand-tooled production.
Each ball is configured with precision ground flat seats (e.g., 200mm diameter flat base) and central boreholes (diameter 32mm–50mm × depth 150mm) for embedded anchor bars, guaranteeing instant jobsite placement.
Raw blocks are categorized by petrographic color bands using digital chromatic scanners. Large civic municipal orders receive consistent tonal matching across batches of several thousand units.
Strategically positioned near Rizhao Port and Qingdao Port, freight moves directly from our factory floor to maritime berths within hours, reducing overland transit risks and minimizing domestic cartage tariffs.
Standard and custom configurations manufactured to ASTM C615 and EN 1341 engineering standards for transport infrastructure, security perimeters, and pedestrian squares.
| Nominal Diameter (Φ) | Calculated Weight (kg) | Milled Base Diameter | Core Hole Spec (Anchor) | Recommended Spatial Application |
|---|---|---|---|---|
| Φ 300 mm (12 in) | ~38 kg | Φ 100 mm | Φ 25 mm × 80 mm | Urban greenways, bicycle path delimiters, low-speed residential sidewalks |
| Φ 400 mm (16 in) | ~90 kg | Φ 150 mm | Φ 32 mm × 100 mm | Commercial plazas, retail storefront curbs, sidewalk parking prevention |
| Φ 500 mm (20 in) | ~175 kg | Φ 180 mm | Φ 32 mm × 120 mm | Municipal streetscapes, school drop-off safety zones, civic building boundaries |
| Φ 600 mm (24 in) | ~305 kg | Φ 220 mm | Φ 38 mm × 150 mm | Anti-ram perimeter security, bus transit stations, government building forecourts |
| Φ 800 mm (32 in) | ~720 kg | Φ 300 mm | Φ 48 mm × 200 mm | Hostile Vehicle Mitigation (HVM), critical infrastructure, airport perimeters |
| Custom Bespoke Shapes | Up to 3,500 kg | Per Engineering Specs | Internal threaded sleeves/rebar | Museum entry ways, high-threat embassy compounds, custom civic monuments |
Engineered for general contractors, landscape architects, and municipal procurement directors managing mission-critical urban streetscape developments.
Specify stone type depending on climate. For severe de-icing salt regions, dense G654 Sesame Black or G602 Sesame White with a flamed or bush-hammered surface avoids slip incidents while withstanding road brine saturation.
A poured-in-place concrete foundation pad (minimum 25–30 MPa strength, 300mm to 500mm depth) with an embedded galvanized steel threaded dowel pin (Grade 304 or 316 for coastal zones) forms the anti-shear foundation interface.
The granite sphere borehole is injected with high-modulus, non-shrink structural epoxy or anchoring cement. The unit is hoisted via suction rigging or nylon sling gear, seated onto the pin, and levelled for zero rotation.
Haichen Stone is leading development in next-generation stone engineering, transforming passive barriers into connected municipal smart street infrastructure.
Channel-milled subterranean cavities allowing integrated ring LEDs or solar-powered embedded light points, elevating pedestrian visual pathways during low-lux nocturnal conditions without exposed wiring.
Internal sensor integration for illegal curb parking detection, smart vehicle telemetry logging, and thermal structural impact warning transmitted to centralized municipal traffic hubs.
Eliminating coal and non-renewables with electric diamond wire sawing and 100% wastewater closed-loop filtration across our Rizhao processing workshops, meeting global LEED, BREEAM, and ESG carbon mandates.
Every export consignment undergoes certified quality assurance protocols to guarantee conformance with municipal engineering mandates across North America, Europe, the Middle East, and Oceania.
Rigorous verification for Granite Dimension Stone, validating density (≥ 2,560 kg/m³), flexural rupture modulus, and compressive structural resistance.
European conformity certifying natural stone slabs and kerbs for exterior vehicular demarcation, dimensional uniformity, and skid resistance ratings.
Wooden ocean freight crates undergo heat treatment (HT) and IPPC stamp verification, safeguarding against customs biological inspection quarantine delays.
Full support for pre-shipment container inspections, chemical composition spectral analysis, and batch testing prior to port gate validation.
Direct answers to the most common queries from structural engineers, project managers, and civil procurement specialists.
Expand your urban development procurement. Combine your perimeter traffic ball shipments with matching granite slabs, kerbstones, and exterior paving tiles directly from our Rizhao factory.