En124 High Strength Anti-Theft Ductile Cast Iron Manhole Cover with Frame

• Customization: Available
• After-sales Service: Compensation for Quality Problems, Online Technica
• Warranty: 2 Years
• Material: Iron
• Shape: Round
• Certification: ISO, CE
• Transport Package: Wooden Pallets/Steel Pallets/as Your Request
• Specification: EN124 E600/D400 / C250 / B125/A15
• Trademark: CNBM
• Origin: China
• HS Code: 732510900
• Production Capacity: 5000/Month

Product Description

Product Description

Basic Information

Our Ductile Iron Manhole Cover is designed for heavy-duty municipal, roadway, and industrial applications. With EN124 D400 standard, it supports up to 40 tons of load, ensuring safety and durability in high-traffic areas.

Material: High-quality Ductile Iron (QT500-7)

Shape: Round

Standard: EN124 E600/D400 / C250 / B125/A15

Surface: Anti-slip pattern, anti-rust coating

Application: Roadways, airports, ports, industrial zones, municipal infrastructure

Key Advantages

√ High Load Capacity

Ductile iron structure ensures load capacity up to 40 tons (EN124 D400), suitable for highways and heavy traffic zones.

√ Anti-Theft Design

Equipped with a concealed hinge or locking system to prevent unauthorized removal.

√ Corrosion & Rust Resistance

Advanced anti-rust coating + ductile iron material ensures long service life even in harsh environments.

 

√ Quiet & Anti-Slip

Rubber gasket reduces noise during vehicle passage; anti-slip pattern enhances safety.

√ Customizable

Logo, color, size, and coating available to meet project-specific requirements.

Product Specifications (Round Manhole Cover)

Model	Outer Size (mm)	Cover Diameter (mm)	Clear Opening (mm)	Depth (mm)	Weight (kg)	Load Capacity
R-D400-1	Φ900	Φ700	Φ670	100	72	EN124 D400
R-D400-2	Φ900	Φ700	Φ670	100	65	EN124 D400
R-C250-1	Φ800	Φ700	Φ670	60	42	EN124 C250
R-B125-1	Φ500	Φ400	Φ370	50	20	EN124 B125
R-A15-1	Φ600	Φ512	Φ485	53	12	EN124 A15

More sizes available upon request.

Certifications

Company Profile

CNBM International Corporation (CNBM INTERNATIONAL CORP.) is a trusted global supplier of high-quality iron castings and comprehensive building materials. As a key subsidiary of China National Building Materials Group (CNBM Group) —one of the world's largest building materials enterprises and a Fortune Global 500 company for eleven consecutive years—we combine vast industrial resources with professional export capabilities to serve customers worldwide 

Our Core Business
We specialize in the manufacturing and international trade of:

Ductile iron manhole covers, gully grates, surface boxes, and pipe fittings

Steel, aluminum, and construction machinery & equipment

Fiberglass products, solar modules, and green energy solutions

Refractory materials, insulation materials, and hardware products 

......

Our Markets
Our products have been successfully exported to markets including:

Middle East & Africa: Panama, Israel, Algeria, Iraq, Jordan, Tunisia, Serbia, Palestine, South Africa, Libya

Asia Pacific: Philippines, Vietnam, India, Indonesia, Russia

Europe & Americas: Select clients across Europe and North America

Domestic: Extensive presence in the China market

Corporate Vision & Values
Vision: Create a new global trade model and deliver exceptional value to all stakeholders 

Mission: Lead the transformation of the foreign trade industry and become a globally influential comprehensive building materials service provider 

Culture: We embrace a culture of "Broad-mindedness, Tolerant Environment, and Forgiving Disposition"—creating a workplace where innovation thrives and customer focus guides everything we do 

Why Choose CNBM International Corporation?

Strength	Details
Global Reach	Established business relations with clients in 140+ countries and regions worldwide, with 6,934 export shipments (2021–2024) valued at over USD 300 million
Own Manufacturing	Factory located in Handan City, Hebei Province, covering 13,000 m² with an annual production capacity of 10,000 tons for iron castings
Quality Certifications	ISO9001:2015 certified; AEO Advanced Certified Enterprise (Beijing Customs); Tax Credit A-Level Enterprise (2013); D-U-N-S Rating 4AA2
Financial Strength	AA- bank rating with credit line exceeding RMB 7 billion; long-term strategic partner of China Export & Credit Insurance Corporation (Sinosure)
Supply Chain Integration	Strategic partnerships with 100+ domestic manufacturers, enabling reliable sourcing and competitive pricing
One-Stop Service	Integrated solutions covering procurement, sales, logistics, financing, and risk control—your single point of contact for complex supply chains
Overseas Presence	Wholly-owned subsidiaries and branch offices in five countries, implementing localized operations to ensure agile supply chain and rapid response
Global Recognition	Recognized as one of China’s first National-Level Pilot Enterprises for Comprehensive Foreign Trade Services (2016); awarded “E-Commerce Demonstration Unit” by the Ministry of Commerce for four consecutive years

FAQ

Q1: What is your MOQ?
A: Our MOQ is 100 pieces per size, but we accept mixed sizes for trial orders.

Q2: Can I get a sample?
A: Yes, samples are available. Sample cost is refundable upon bulk order.

Q3: What is the delivery lead time and minimum order quantity?

A: Regular specifications (e.g. Φ650mm, Class D400) are in stock and can be shipped within 7–10 days after order placement. Custom specifications (special sizes, load classes, surface markings) require mold opening, with a lead time of 15–25 days.The minimum order quantity depends on the specification: 100 sets for regular products and 200 sets for custom products, and is negotiable.

Q4: Do you provide OEM service?
A: Yes, we offer full OEM and ODM support to meet your branding and project requirements. Our capabilities include:Logo & Marking,Coating & Color
,Size & Shape,Load Rating,Hinge & Locking
Q5: How do you ensure quality?
A: Quality is our top priority. We operate a multi-layer quality control system covering raw materials, production process, and final inspection:

1. Raw Material Control

Use of high-grade ductile iron (QT500-7 / QT600-3) sourced from certified mills

Incoming material testing for chemical composition via spectrometer analysis.

2. In-Process Control

Real-time monitoring of melting temperature, pouring process, and molding

Dimensional checks during production to ensure fit between cover and frame.

3. 100% Final Inspection Before Shipment
Every product undergoes:

Inspection Item
Method
Load Capacity
Hydraulic press testing per EN124 standard (e.g., D400 = 400 kN)
Coating Quality
Thickness measurement, adhesion test, and visual inspection
Fit & Clearance
Gauge checks on cover-to-frame fit, hinge operation, and locking mechanism
Dimensional Accuracy
Caliper and template verification for outer size, clear opening, and depth
4. Third-Party Inspection
We welcome SGS, BV, TÜV, or client-nominated third-party inspections prior to shipment. All inspection records and test reports are retained for traceability.

5. Certifications

ISO9001:2015 certified for quality management

EN124 compliant (test reports available upon request)

Factory audited by major clients from Europe, Middle East, and Southeast Asia

 

 
Ø Warranty: We stand behind our products with a 2-year warranty covering all manufacturing defects. Beyond this period, our technical team continues to provide lifetime support at no additional cost.