Handan Shengnada New Material Technology Co., Ltd. andy@sndatech.com 86--198 3265 7175
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Double Layer Anti-Settlement D400 Ductile Iron Manhole Cover with ISO9001:2015 Certification

Product Details

Place of Origin: Handan, China

Brand Name: SND Foundry

Certification: ISO / CE

Model Number: SND Manhole Cover

Payment & Shipping Terms

Minimum Order Quantity: 10 tons

Price: $50-90/t

Packaging Details: wood pallet/ bulk

Delivery Time: 45 days

Payment Terms: L/C,T/T

Supply Ability: 20000 tons per year

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Product Details
Highlight:

Double Layer d400 ductile iron covers

,

Anti Settlement d400 ductile iron covers

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Anti Settlement d400 manhole cover

Product Name:
Ductile Iron Manhole Cover
Key Words:
Round Manhole Cover
Class:
D400
Color:
Black,
Material:
Ductile Iron
Standard:
ISO9001:2015, DIN En124
Origin:
Handan, Hebei Province
Shape:
Round,Square,etc
Product Name:
Ductile Iron Manhole Cover
Key Words:
Round Manhole Cover
Class:
D400
Color:
Black,
Material:
Ductile Iron
Standard:
ISO9001:2015, DIN En124
Origin:
Handan, Hebei Province
Shape:
Round,Square,etc
Product Description
Double Layer Anti Settlement D400 Ductile Iron Covers / Round Manhole Cover

The ductile iron double-layer anti-settlement manhole cover is an advanced urban infrastructure product designed to prevent ground settlement around manholes and ensure the long-term stability of roads, pavements, and other surfaces. It is widely used in urban areas, highways, industrial parks, and other locations requiring enhanced safety and durability.

The double-layer design and anti-settlement structure provide superior performance for heavy load conditions while reducing maintenance costs over time. Made from high-quality ductile iron, this product addresses common urban infrastructure problems including manhole settlement and surface alignment issues.

Key Features and Advantages
Anti-Settlement Design
  • Double-layer structure ensures even load distribution between cover and surrounding surface
  • Prevents settlement from heavy traffic or soft soil conditions
  • Maintains proper road/pavement alignment
High Strength and Durability
  • Constructed from ductile iron (QT450-10 or QT500-7)
  • Superior tensile strength and toughness compared to traditional cast iron
  • Resistant to deformation and breakage under heavy loads
Noise Reduction
  • Equipped with rubber seals or anti-vibration components
  • Minimizes noise when vehicles pass over the cover
Corrosion and Weather Resistance
  • Treated with hot-dip galvanizing, asphalt coating, or electrostatic spraying
  • Protects against rust and harsh environmental conditions
Extended Service Life
  • Designed for 30+ years of service
  • Reduces need for frequent replacements and repairs
Safety and Anti-Theft Features
  • Optional locking mechanisms or hinged designs
  • Double-layer structure provides additional reinforcement
Easy Installation and Maintenance
  • Modular design simplifies installation
  • Adjustable frame allows quick surface alignment
  • Easy to inspect and maintain
Technical Specifications
Performance Indicator Parameter Value
Material Ductile Iron (QT450-10, QT500-7)
Tensile Strength ≥450 MPa
Impact Toughness ≥10 J/cm²
Anti-Corrosion Treatment Hot-dip galvanizing, asphalt coating, electrostatic spraying
Noise Reduction Design Rubber seals/anti-vibration components
Environmental Temperature -40°C ~ 80°C
Load Capacity A15 / B125 / C250 / D400 / E600 / F900
Service Life ≥30 years
Manufacturer Information

SND has been producing high-quality metal goods for over 20 years, specializing in various casting techniques including sand casting, lost wax casting, lost foam casting, and precision machining. Our product range includes components made from cast iron, steel, stainless steel, and aluminum, with additional surface finishing and assembly services available.

Our expertise spans multiple industries including automotive, rail transportation, agricultural machinery, chemical processing, energy, electrical, water systems, air compression, and construction. All manufacturing processes adhere to ISO9001 quality control standards, ensuring consistent and reliable product quality.

Comprehensive quality inspections include spectrometer analysis, ultrasonic testing, magnetic inspection, permeability testing, elongation measurement, and tensile/yield strength evaluation.

Double Layer Anti-Settlement D400 Ductile Iron Manhole Cover with ISO9001:2015 Certification 0 Double Layer Anti-Settlement D400 Ductile Iron Manhole Cover with ISO9001:2015 Certification 1 Double Layer Anti-Settlement D400 Ductile Iron Manhole Cover with ISO9001:2015 Certification 2