HomeProductsDuctile Cast Iron ProductsAnti-settlement Manhole Cover800×1000×120 Anti-Settlement Color-Painted Ductile Iron Round Manhole Cover

800×1000×120 Anti-Settlement Color-Painted Ductile Iron Round Manhole Cover

Product Features:

Good Durability and Low Maintenance Cost,Vibration Dampening,Outstanding Safety Features

In urban renewal projects, cultural tourism districts, and high-end residential areas demanding strict landscape integration, manhole covers transcend utilitarian function to become environmental art. Road Middle Treasure’s 800×1000×120 anti-settlement color-painted cover innovatively fuses QT500-7 ductile iron anti-settlement technology with customized artistic painting. Its 800×1000mm outer-square/inner-round structure fits large openings, while the 120mm-deep ring vertically transfers loads to road structural layers via a base flange, eradicating settlement. The surface employs nano-ceramic baking paint technology, customizable with urban totems, cultural landmarks, or corporate VI patterns (UV resistance Grade 8)—elevating municipal facilities to public art installations.  

The structure strictly complies with CJ/T327 anti-settlement standards (cover-ring gap ≤0.3mm) and integrates triple damping seals. The painted layer withstands 2,000-hour salt spray tests and 100,000 abrasion cycles, retaining vibrancy for 15+ years. Road Middle Treasure masterfully unites functional protection and aesthetic expression, creating "breathing" landscape covers for smart cities that redefine streetscape aesthetics.

Product Description

Road Middle Treasure 800×1000×120 Anti-Settlement Color-Painted Ductile Iron Round Manhole Cover:Urban Artwork Merging Functionality and Aesthetics

Five Core Value Points  


Zero-Settlement Structure + Thousand-Ton Capacity  

120mm ultra-deep ring + 250mm-wide base flange directs loads to road base (settlement <0.2mm/year).

Monolithic QT500-7 casting (12mm wall thickness) exceeds E600 (600kN) certification.  

12 pre-embedded ground anchors (Ø18mm; pull-out resistance ≥90kN).  


Military-Grade Nano-Painting Technology  

Triple-layer coating: Epoxy zinc primer + nano-ceramic color paint + polyurethane clear topcoat.  

3D printing precision: 4800 dpi (supports custom cultural/corporate designs).  

Weather resistance 3× national standard: UV8 (ISO16474), withstands -40°C~150°C cycles.  


3D Anti-Slip & Silent Technology  

Laser-engraved invisible anti-slip texture (0.8mm depth; wet friction ≥0.65).  

Embedded high-elastic damping strips (Shore 65±5) reduce noise by 35dB.  

Tapered silent latch + silicone seal eliminates metal impact noise.  


Anti-Theft & Anti-Corrosion Dual Shield  

Concealed triple-point locking (304 stainless core; resists forced entry >30 minutes).  

Paint surface withstands >3,000-hour salt spray (ASTM B117) and de-icer corrosion.  

Ring: Hot-dip galvanized (zinc ≥150μm) + asphalt sealant for dual corrosion barriers.  


Smart Maintenance Interface  

Reserved RFID slot (ISO18000-6C compliant) for digital asset management.  

Fluorescent warning strips (luminosity >300 mcd/m²) for nighttime visibility.  

Modular design enables rapid replacement (cuts maintenance costs by 60%).  

Let Urban Covers Tell Cultural Stories  

Road Middle Treasure’s anti-settlement color-painted covers—built on E600 load-redistribution technology and nano-artistic painting—have become iconic attractions at Hangzhou Asian Games zones and Shanghai Bund renewal projects. With 15-year colorfast urban canvases, they transform functional infrastructure into public art, pioneering the "Manhole Revolution 3.0" era.

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