1,Cast Iron Manhole Cover Description :

Manhole covers are often made out of cast iron, concrete or a combination of the two. This makes them inexpensive, strong, and heavy, usually weighing more than 50 kilograms (110 lb). The weight helps to keep them in place when traffic passes over them, and makes it difficult for unauthorised people not having suitable tools to remove them.A manhole cover sits on metal base, with a smaller inset rim which fits the cover. The base and cover are sometimes called "castings", because they are usually made by a casting process, typically sand-casting techniques.

 2,Main Features of the Ductile Iron Manhole Cover:

·High endurance

·High Strength

·Anti-corrosion

·Anti-theft

1.advantage of manhole cover   

  1) High load rating and strength

  2) Against theft and safety options

  3)Free design

2.detailed information of manhole cover

1) Various manhole cover strictly conform to standard and free from sand holes, blow holes, distortion or any other defects

2) Processes:
  a) Automatic machine lines
  b) Moulding boards
  c) Green sand with hand moulding

3,Manhole Cover Images:

4,Manhole Cover Specifications:

1. long service life

2. D400, C250, B125

3. According to EN124

5，FAQ:

We have organized several common questions for our clients，may help you sincerely：

Q. Can I fit a square manhole cover into a round chamber?

A. Yes, there are a select few manhole covers which are square-to-round, meaning they will fit square or round chambers. 

Q. I’ve measured my clear opening size but none of your covers match it, can you offer anything?

A. It’s likely that your cover is quite old and in imperial measurements which are no longer manufactured. However, we can offer bespoke solutions with manhole covers made to the specification you require.

Q. The project I’m working on requires a manhole cover with a quality finish, what’s available?

A. Naturally, galvanised steel of black polypropylene aren’t always ideal, and so we offer brass or stainless steel edging, as well as complete stainless steel covers.

Q. I need access through my manhole cover on a regular basis, is this possible?

A. Yes, the majority of covers have built-in lifting keys, and for those that don’t we also supply lifting keys. However, the best way to obtain easy access is to have a bespoke, hinged manhole cover.