What are the available seal types?

We offer single seal, double seal, and double triangular series. Some types also come with a GRP sealing plate.

How long is the lead time for production?

The average lead time is one month for both peak season and off-season.

What payment terms are accepted?

We accept LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

Syi Foundry En124 Class D400 Round Square Rectangle Ductile Cast Iron Manhole Cover with Frame Dimensions

Name: Syi Foundry En124 Class D400 Round Square Rectangle Ductile Cast Iron Manhole Cover with Frame Dimensions
Brand: SYI Industrial Co., Ltd.
SKU: 1918465442

Shanxi, ChinaSYI Industrial Co., Ltd.

US$1,200.00

10-49 Tons

US$900.00

50+ Tons

Sample price:US$1200.00/ton.Request sample

Product profile

Customization

Available

Material

Iron

Shape

Round/Square/Rectangle

Model NO.

D400

Certification

ISO, CE

Name

Ductile Iron Manhole Cover

Color

Black, Grey, Green, Blue, or as Client's Design

Service

OEM ODM

Surface Treatment

Bituminous Paint, Baking Varnish, Electrostatic Sp

Transport Package

Packet with Steel Belt

Specification

EN124 D400

Trademark

SYI or OEM

Origin

China

Production Capacity

1200/Ton/Month

Key features

Heavy Duty D400 Class: Load capacity up to 40 tons, suitable for all road vehicles and carriageways.

Customizable Colors: Available in Black, Grey, Green, Blue, or as per client's design requirements.

OEM/ODM Service: Supports custom logos, special inscriptions, and personalized mold design.

Multiple Seal Options: Offers single seal, double seal, and double triangular series for various needs.

Certified Quality: ISO9001:2015, TUV, BSI, SGS, BV, FM certified and UL, WRAS listed.

Durable Coating: Standard 30-micron black bitumen coating; epoxy coating available on demand.

Fast Response Time: Customer service team promises to respond to inquiries within 24 hours.

Professional R&D: 11 R&D engineers use AutoCAD, Pro Engineer, and Solid Works for design.

Company profile

SYI Industrial Co., Ltd.

Shanxi, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2015-03-19 CertifiedNearest Port: Tianjin PortAverage Response Time: ≤5.62h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummarySYI Group, also identified as SYI Industrial Co., Ltd., is a China-based limited company established in 1999 and operating from Shanxi. Its reported product scope includes castings, forgings, ductile iron pipes and fittings, manhole covers, valves, flanges, aluminum castings, and municipal products. The supplier reports ISO 9001:2015 certification and additional TUV, BSI Kitemark, SGS, BV, FM, and WRAS credentials or listings. Manufacturing evidence includes six production lines, automatic moulding equipment, CNC machining, laboratory facilities, in-house tooling, and 21–30 quality-control staff. It exports to multiple global regions and states that exports represent 90% of sales. Evidence supports production capability and certification strength, while after-sales service, financial credibility, innovation outcomes, customization performance, and customer cases cannot be conclusively assessed from the provided information.

Supplier typeThe supplier is described as a combined business entity and limited company, operating in industrial equipment, components, tools, hardware, metallurgy, machinery, construction, and related sectors. Its stated product range is centered on castings, ductile iron products, manhole and municipal products, valves, flanges, and aluminum parts.

CertificationsThe supplier explicitly reports an ISO 9001:2015 certificate and states that it is TUV, BSI Kitemarked, SGS, BV, FM certified, and WRAS listed. These statements provide direct evidence of multiple quality, product, or compliance credentials, although the specific scope and validity of each additional credential are not detailed.

Production capacityProduction capability is supported by a reported 67,275.83 m² manufacturing plant, six production lines, automatic moulding equipment, CNC machining centers, laboratory facilities, in-house tooling, and 21–30 quality-control staff. The supplier also reports one-month fulfillment timing in both peak and off-peak seasons and serves multiple export regions.

Customization capabilityThe supplier lists OEM industrial castings and maintains in-house pattern and tooling shops, which directly supports the ability to develop or manufacture customer-specific cast components. Nevertheless, no examples, minimum requirements, engineering workflow, or documented customization projects are provided.

Product Q&A

Q:What is the load capacity of the D400 manhole cover?

The D400 class manhole cover has a loading capacity of 40 tons, making it suitable for carriageways, hard shoulders, and parking areas for all types of road vehicles.

Q:Can the color and logo be customized?

Yes, colors are available in Black, Grey, Green, Blue, or as per the client's design. The marks, including the customer's logo, can also be changed.

Q:What coating options are available?

The standard coating is black bitumen with a thickness of 30 microns. Epoxy coating is also available according to customer demand.

Q:What certifications does the product have?

The product is ISO9001:2015, TUV, BSI Kitemarked, SGS, BV, and FM certified, and is UL and WRAS listed.

Q:Does SYI offer OEM and ODM services?

Yes, SYI provides OEM and ODM services, including designing and making new molds, customizing shapes, and adding special inscriptions or identification.