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1,Cast Iron Manhole ladder Description :
A Manhole ladder is a removable plate forming the lid over the opening of a manhole, to prevent anyone or anything from falling in, and to keep out unauthorized persons and material.
Manhole ladder 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.
2,Main Features of the Ductile Iron Manhole ladder
1.detailed information of manhole ladder
1) Various manhole cover strictly conform to standard and free from sand holes, blow holes, distortion or any other defects
a) Automatic machine lines
b) Moulding boards
c) Green sand with hand moulding
2.advantage of manhole ladder
1) High load rating and strength
2) Against theft and safety options
3)Durable service life.
3,Manhole ladder Images:
We have organized several common questions for our clients，may help you sincerely：
Q. I have a heavy traffic manhole cover but it has been broken by a forklift, why?
A. Forklifts have solid wheels which apply pressure differently to standard pneumatics and therefore covers must be specially adapted to suit this.
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 ladder made to the specification you require.
Q. The project I’m working on requires a Manhole ladderwith 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. Odours are coming through where I have installed my manhole ladder, why?
A. Your cover must be sealed and locked, or neoprene sealed, so you would require a T-Range Cover, or if you require a solid top, a selection of the PC range (e.g. PC2BG3, PC6CG3, not PC2BG) are suitable.
Q. I need access through my Manhole laddera 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 ladder
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