Product Description

Ductile iron manhole cover in cast & forged


Characteristics of our manhole cover:
* Material: Ductile Iron, Carbon Steel, Grey iron, stainless steel, steel, aluminium, brass...

* Sand and investment casting(precision casting)are all avalable

* Software for drawing: PRO/E, Auto CAD, UG, CAD, PAF and Solidwork 2008 flow analysis

* Further machining work: Turning and cutting, milling, grinding, drilling, reaming and threading

* Equipment: CNC center, CNC center and lathes.

* Surface finish process: Shot blast, chromate plating, power coated and anodizing

* OEM/ODM parts range: Auto parts, electronic parts, furniture parts, home appliance and other industrial uses

* Process: CAD surface, matel processing, surface plating, QC testing and packaging

* Made according to customers' drawing, sepecification and samples

* Castng capacity: 500ton/Month




D400 Clear Opening 400mm Casting manhole cover/cast iron manhole cover price
Clear Opening: 390*390mm
Frame size: 490*490mm
Frame depth: 75
Testing Loading: D400
Material: Ductile iron GGG500-7&400-12
Standard: EN124


1. Advantage of our Manhole Covers
1) Can supply all kinds of load class Product such as A15/B125/C250/D400/E600/F900
2) Against theft and safety, double sealed, watertight type
3)material No. GGC50(DIN1693-73), QT500-7(GB/T1348-1988), 80-55-06(ASTM A536), FCD500(JISG 5502-2001), 500/7(BS2789: 1985).
4)Free charge of design.
5) 3 day pay for ready if the request in storck.

2. Detailed information of manhole cover
1) Various manhole cover made by GX Foundry strictly conform to standard and free from sand holes, blowholes, distortion or any other defects
2)Processes:
A) Automatic machine lines
B) Moulding boards
C) Green sand with hand moulding
3)Guarantee: GX Foundry will replace any heavy duty castings that have been properly installed and broken in normal use, free of charge after receipt of the broken castings.







1. Q: Why choose Shengao product?
A: We shengao have our own plant-- Weifang Shengao machinery Co., Ltd, therefore, we can surely promise the quality of every product and provide you comparable price.

2. Q: Do you provide OEM Service?
A: Yes, we provide OEM Service.

3. Q: Do you provide customized forging products?
A: Yes. Customers give us drawings and specifications, and we will manufact accordingly.

4. Q: What is your payment term?
A: We provide kinds of payment terms such as L/C, T/T, Paypal, Escrow, etc.



OEM and ODM for casting manhole covers are 100%
If you want custom casting manhole covers, please feel free to contact us.
Quotation will be provided within 24 hours.

If there's anything I can help, please feel free to contact with me.

   Size( customized available for other dimensions)

Material composition: