HOT LINE:+86-15116381985

Home - Our Product

Product list

Please contact us

  1. Email :
  2. Tel : +86-15116381985
  3. Add : Headquater Address : No.12, Dongshi Road, Changsha Economic Development Zone, Changsha, Hunan Province, China
  4. Foundry Address : Foundry Address: NO.260,Jinchang Road,Jinjing Town,Changsha,Hunan Province,China

Round Manhole Cover&Frame

Catalog NumberA-Cover SizeB-Clear OpeningC-Frame SizeD-Frame HeightE-Duty ClassF-Lockable
round ductile iron manhole cover655601830100C250yes
All dimensions in mm.

Quick details

· Shape: Round

· Material: Ductile Iron GJS500-7

· Duty ClassEN124 C250

· Frame Style: Bottom Flange

· Gasket Material: Neoprene

· Lock Material: SS304

· Coating: Black Bitumen

· StandardEN124-2015

· Surface Pattern:Customized

· Surface text:Customized

For almost 30 decades,  Cast-King has been dedicating itself to fulfilling what our clients need…quality castings, efficient communication and willingness to build long term partnership. This attitude has been the key in building decade’s old relationships as well as developing new relationships that would last for many years. While longevity may represent complacency for the cooperation, at Cast-King it translates into casting innovation with vast in-house experience from a financially stable company that places its customers’ needs first.

Since 1993, Cast-King Foundry has been a consistent leader in exporting electric ductile iron manhole cover across the world. 

Our main market includ Italy, Spain, UK, Middle east, Singapore, South Korea, Japan, Australia,Africa, etc.

OEM & OED is welcomed, look forward to being partner with for your local market.

We would push you to great success in municipal construction and infrascture project.

As manufacturer foundry, we look forward to being partner with those who are engaged in whole sale business for building material, any customized high quality mechanical castings and industrial casting are available form us as well.


Casting Size: 1-1500KG

·       Gray Iron: ASTM A48/ EN1561

o   Class 25/GJL150

o   Class 30/ GJL200

o   Class 35/ GJL250

o   Class 45/ GJL300

·       Ductile Iron: ASTM A536/ EN1563

o   Grade 60-40-18/GJS 400-18

o   Grade 65-45-12/GJS450-10

o   Grade 60-50-05/GJS500-7



Customer Required(300-1200mm)


Ductile Iron 500-7


construction , public road,drainage system etc

Model Number


Brand Name

CastKing or OEM

Place of Origin

China (Mainland)


black, grey, etc



Loading Pressure

A15, B125, C250, D400, E600, F900


black bitumen coated,epoxy painting




1 set


Moulding pressing


30~50 years

OEM service



pallet and wooden case, or as per customers' requirements.

 Our Advantage

1. Material: Gray Iron, Ductile Iron, Malleable iron;
2. Process: Green sand & Resin sand & Precoated sand;
3. Finish: Antirust oil, Plating, Paint, Powder Coating, etc…;
4. Weight: 3 - 500 Kg;
5. Years of experience in manufacturing and exporting.
6. All sorts of casting can be manufactured according to customer's requirement, drawing, design or samples;
7. The coordinated service (casting, machining and surface treatment) make lower price possible;
8. Strong engineering team makes high quality;
9. Full material testing process and quality control system;
10. On time delivery;
11. OEM & ISO;


Quality Control Process


Raw Material Inspection

·       Raw Material inspection including chemical

·       components analysis, tensile strength test and etc. 

Quality Control Groups

·       Dimensions Test

·       Manufacture process Inspection

·       Process Inspection including sand cleaning, assembling, packing and coating

·       Final Inspection including delivery marks and etc.

·       Particular Tests for different products, such as Load Test, Hydro Test and etc. 


·       Chemical Components

·       Microstructure Test

·       Tensile Strength

casting process web use.jpg

Any Customized Model is available from us

Any question, please feel free to contact us
Your Name:Your Email:
Your Message:

Hunan Castking Foundry Technology Co.,Ltd