Handan Shengnada New Material Technology Co., Ltd. andy@sndatech.com 86--198 3265 7175
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Home > Products > Ductile Iron Manhole Cover > GGG50 Ductile Iron Round Manhole Cover D400 500X600mm with 40 Tons Loading Capacity

GGG50 Ductile Iron Round Manhole Cover D400 500X600mm with 40 Tons Loading Capacity

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
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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
GGG50 Ductile Iron Round Manhole Cover Class D400 500×600mm
Product Overview

Our GGG50 ductile iron manhole covers are manufactured using spheroidal graphite cast iron through precision machining and hand molding processes. Available in solid top, recessed designs with single or double seals, these covers feature excellent quality with smooth surfaces free from defects.

Key Features
  • 40-ton loading capacity for heavy-duty applications
  • Standard black bitumen coating (30 microns thickness)
  • Optional epoxy coating available upon request
  • Available in round, square, and rectangular configurations
  • Customizable with anti-slip patterns and logo designs
  • Optional security features including locks and smart technology
Technical Specifications
Specification (mm) Altitude (mm) Weight (kg) Model
400×500 40 14 D400
500×600 40 20 D400
600×700 35 14 B125
700×800 50 20 B125
700×900 100 51 D400
800×900 50 35 C250
Manufacturing Process
  • Material Preparation: High-quality pig iron and scrap iron alloyed with magnesium
  • Casting: Precision sand casting for accurate dimensional control
  • Heat Treatment: Enhances strength and flexibility
  • Surface Coating: Anti-corrosive treatments for extended durability
  • Quality Control: Rigorous testing for load capacity, tensile strength, and dimensions
Company Profile

With 20 years of experience in metal manufacturing, SND specializes in producing high-quality cast iron components using advanced techniques including sand casting, lost wax casting, and precision machining.

Our ISO9001-certified quality management system ensures consistent product excellence through comprehensive testing including:

  • Spectrometer analysis
  • Ultrasonic and magnetic testing
  • Permeability and elongation measurements
  • Tensile/yield strength verification
GGG50 Ductile Iron Round Manhole Cover D400 500X600mm with 40 Tons Loading Capacity 0
GGG50 Ductile Iron Round Manhole Cover D400 500X600mm with 40 Tons Loading Capacity 1
GGG50 Ductile Iron Round Manhole Cover D400 500X600mm with 40 Tons Loading Capacity 2