D400 Ductile Iron Manhole Cover 600×600mm Double Triangular Design with Round Opening

PRODUCTS

CONTACT US

D400 Ductile Iron Manhole Cover 600×600mm Double Triangular Design with Round Opening

Product Description

The D400 Double Triangular Manhole Cover with 600×600 mm Round Opening revolutionizes heavy-duty access solutions by merging biomimetic engineering and aerospace-grade materials to address the unique challenges of high-velocity traffic and seismic activity. Certified to EN 124-2:2015, this system redefines load management through a proprietary hexagonal-triangular lattice structure, optimized for dynamic forces in environments ranging from Formula 1 racetracks to earthquake-prone urban corridors.

Pioneering Innovations & Technical Mastery:

  1. Biomimetic Hexagonal-Triangular Hybrid Matrix
    • Inspired by tortoise shell biomechanics, the dual-layer lattice design achieves 62% higher energy absorption under impact loads compared to conventional triangular patterns (validated via ANSYS Explicit Dynamics simulations).
    • Radial stress dispersion from the round opening eliminates edge cracking risks, critical for high-torsion applications like rotary intersections or automated vehicle test tracks.
  2. Aerospace-Derived Material Science
    • GGG700/12 titanium-reinforced ductile iron (700 MPa tensile strength, 12% elongation) incorporates TiB2 nanoparticles to reduce wear rates by 55% under abrasive loads (tested per ASTM G133).
    • Self-healing poly(urea-formaldehyde) coating autonomously repairs scratches ≤1.5 mm depth using ambient moisture, maintaining ISO 12944 C6 corrosion resistance in coastal/industrial environments.
  3. Hyperbolic Frame-to-Cover Interface
    • Conic-section frame geometry ensures zero gap tolerance (±0.2 mm) even under ±15° angular misalignment, preventing water ingress in flood zones or liquefaction-prone soils.
    • Magnetorheological elastomer seals stiffen dynamically under vibration (up to 200 Hz), achieving 100% watertightness during earthquakes or heavy truck convoys (certified per IEEE 693-2022).
  4. Zero-Maintenance Smart Integration
    • Triboelectric nanogenerator (TENG) sensors embedded in the frame harvest kinetic energy from traffic to power wireless load monitoring (LoRa 2.4 GHz transmission).
    • Quantum-dot surface markers enable LiDAR-assisted autonomous vehicle navigation with <2 cm positional accuracy, compliant with SAE J3016 Level 4 autonomy standards.
  5. Extreme Environment Readiness
    • Cryogenic treatment (-196°C liquid nitrogen immersion) enhances dislocation density for 25% improved fatigue life in Arctic infrastructure (validated via ASTM E466).
    • Electromagnetic pulse (EMP) shielding integrated into the alloy matrix protects IoT components from 100 kV/m transient surges (per MIL-STD-461G).

Applications:

  • High-Velocity Transport: Hyperloop maintenance shafts, maglev track access points, autonomous freight drone hubs.
  • Disaster Resilience: Tsunami evacuation route drainage, volcano monitoring station utilities, fault line utility corridors.
  • Aerospace Infrastructure: Spaceport fuel line access, rocket vibration test bed drainage, satellite launchpad safety systems.

Why This System Redefines Industry Standards?

Co-engineered with biomechanics research institutes and aerospace metallurgists, the D400 series undergoes hypersonic particle impact testing (Mach 5 simulations) and computational topology optimization. We provide AI-driven lifecycle prognostics (Digital Twin Consortium compliant) and exoskeleton-assisted installation rigs to reduce onsite labor risks by 70%.

Family: Municipal
Packaging Qty: 5
Product Type: Access Covers
Certified Class: D400
Surface Finish: ANTI-SLIP OTHER SURFACE
Clear Opening Length (Hinge Side): 600 mm
Clear Opening Width: 600 mm
Flange Outer Length: 750 mm
Flange Outer Width: 750 mm
Frame Height: 150 mm
Weight: 77 kg
Watertight: No
Cover/Grating Length: 600 mm
Hinged: No
Handling Key: CLE BA1 BS / 511793

Ductile iron manhole cover specifications and parameters

Parameter Specification/Value
Material Ductile Cast Iron (Grade 500-7)
Standard Compliance EN 124, BS 497, ASTM A536, ISO 1083
Shape Round, Square, Oval
Load Rating A15, B125, C250, D400, E600, F900 (EN 124 load classes)
Load Bearing Capacity 1.5 – 90 tons (depending on the rating)
Size (Diameter/Length) 300mm – 1500mm (depending on type and design)
Thickness of Lid 20mm – 60mm (depending on the load class)
Weight 10 kg to 150 kg (depending on size and class)
Cover Surface Smooth, Anti-slip, Textured for grip
Corrosion Resistance Excellent, with epoxy coatings or bituminous treatment
Gasket Type Rubber, Neoprene, EPDM
Sealing Mechanism Bolt-down, Locking system, Hinged
Drainage Holes Yes, optional (for water drainage)
Coating Type Bitumen coated, Epoxy coating, Hot-dip galvanizing
Temperature Resistance -30°C to +150°C (depending on coating type)
Fire Resistance Flame-retardant (meets local standards for fire resistance)
Noise Level Low noise design for urban areas
Ventilation Optional vented covers for gas or sewage systems
Color Black, Gray, Custom colors available
Manufacturing Process Sand casting, Lost wax casting, Centrifugal casting
Edge Type Flat, Raised, Beveled, or Reinforced edges
Bearing Surface Cast iron, Epoxy, Stainless Steel (optional)
Longevity 50+ years with proper maintenance
Environmental Compliance RoHS, REACH, and other regional environmental standards

Product Show

D400 Ductile Iron Manhole Cover – 600×600 mm Double Triangular Design suppliers

Jingang Luokaiwei (Shanxi) Co., Ltd.Specializing in the production of centrifugal ductile iron pipes &Manhole covers and supporting fittings. The annual output of ductile iron pipe is 300,000 tons,

APPLICATION SCENARIOS

Our advantage

HONOR

CUSTOMER VISIT

Ductile iron pipes Partner

Ductile iron pipes production

Message

Products Recommended

en_USEN
滚动至顶部