• Ductile Iron Manhole Cover with High Quality System 1
  • Ductile Iron Manhole Cover with High Quality System 2
  • Ductile Iron Manhole Cover with High Quality System 3
  • Ductile Iron Manhole Cover with High Quality System 4
  • Ductile Iron Manhole Cover with High Quality System 5
  • Ductile Iron Manhole Cover with High Quality System 6
Ductile Iron Manhole Cover with High Quality

Ductile Iron Manhole Cover with High Quality

Ref Price:
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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 set
Supply Capability:
4166 set/month

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Product Description

 

 

1) Material 

 

a) Ductile Iron GGG500-7 & 400-12 

b) Grey Iron GG20

 

2) Designs.

a) EN124 A15, B125, C250, D400, E600 and F900 

b) A60005 for casting design 

c) Major standards designs available 

d) As per customers' drawings or samples 

3) Process 

a) Molding boards 

b) Green sand with hand molding 

4) Coating 

a) Cold applied black bitumen 

b) Without coating 

c) Coating as per customers' requirements




 

 

Ductile Iron Manhole Cover with High Quality

Ductile Iron Manhole Cover with High Quality


 

Specification

 

No.Item No.Clear Opening(mm)Frame Size(mm)Frame Height(mm)Unit Weight (kg/set)
1PBC550450×450450×4503521
2PBC600500×500600×6003526
3PBC700600×600700×7004037
4PBC800700×700800×8004047

 

 

 

 

Advantages

 

Good compressive, bending and impact strength, anti-corrosion, not rust, long service life  

(at least 30 years). The quality meets the same kinds cast ion manhole covers but the cost is 30% lower than. Contain no metal 

 

and no recovery value, anti-theft.

 

 

Packaging & Shipping

 

Packaging: Details Pallet with bubble film, Carton or with pallet,

 

Delivery Detail: 8 days if your order is 20"container

 

 Ductile Iron Manhole Cover with High Quality

 

Our Services

 

1. Sample is available for free.

 

2. OEM and ODM are welcome.

 

3. Free charge of design labels and cartons.

 

4. Our products: produced by the hydraulic Press. 


Meanwhile, a number of experienced workers do the strictly Quality control and have production tracking program. 

 

5. Our price: we are the factory, we provide the most competitive price with good quality, and 

large order quantity will get big support by us!

6. Professional technical support with free charge.

 

7. After the cooperation: Any of your problem will be solved within 24 hours.

 

 

FAQ

 

Why imported Composite Manhole cover/Grating fromChina?


1. Very competitive price, it will save you third or even half cost;


2.Good quality, don't worry much about the quality, actually, most of the building materials you buy from Miami, Dubai ,Italy, 


South Africa or your local market are imported from China. So why not buy direct fromChina. The key point is to find a reliable 


supplier who is honest and professional to take care of the quality and delivery time.


3.Chinahas full range of Manhole covers which Follow En124  for your market, like A15,B125,C250,D400.


How do we start our cooperation?


If you are wholesaler, please send us the detailed information of the products you are doing, like Cover size, clear opening size, 


loading Grade, we will give you our best advices. We can start from sample order. 


Sometimes if meet the size we don’t have, the new mould with your size and design can be considered from us. Let's talk more 


details about the New Mould and Charges. Then start our Cooperation.

 

 

 

 


Q: How to calculate the price of casting parts?
According to the complexity of the workpiece, material and casting requirements and process yield
Q: Why does the surface of stainless steel casting mirror mirror ripple?
Because the grinding machine is layer by layer. And the material inside the casting is not completely uniform.
Q: Selection of hydraulic press is the casting parts and steel plate welding, how to choose?
Casting parts in one shape, the overall processing in this regard than steel plate welding better. The same price is much more expensive than steel. Large hydraulic presses seldom have casting parts.
Q: In theory, which is more expensive, forging parts or casting parts?
It depends on the structure. In theory, the shape of the forging is relatively simple, but the requirement of internal structure is relatively high
Q: What is the difference between casting and stamping parts?
Cold stamping is generally no longer done by cutting, or only a small amount of cutting is required. The precision and surface state of hot stamping parts are lower than those of cold stamping parts, but they are better than those of castings and forgings, and the amount of cutting is less.Stamping is mainly based on process classification, can be divided into separation process and forming process two major categories.
Q: Cause of choking of casting parts
The reason is not in the coated sand, see coating gas evolution, the best use of zircon powder coating (low gas evolution), there is a mold according to a vent needle, this depends on your way is flat or vertical pouring pouring pouring, if vertical pouring, venting pin on the die, and the big piece how could the plane, pouring water flat, a breath, a taboo ah!
Q: My parts complex, machining costs are relatively high, so want to cast, but the surface needs anodizing, what material will be better?
The common material that can be anodized is aluminum alloy. It is recommended to use casting aluminum alloys, such as ZL102 and ZL105, which are commonly used as cast aluminium alloys. The processing of aluminum casting is easy. After processing, the surface of the whole part can be anodized. The color can be chosen.
Q: What do you mean by "proofing" in the casting? Do you charge for the proofing?
Proofing refers to making the first sample to confirm to the customer
Q: Heat treatment process and purpose of casting parts
Methods: artificial aging or natural aging (also called normalization) treatment.Artificial aging: heating to 2-3 Baidu, it is best to apply mechanical vibration, and maintain a period of time.
Q: Is 316 casting better than 304 casting?
The degree of difficulty in the process of casting depends mainly on the structure, precision requirements, and hardness of the casting. It is comprehensive. There is no simple comparison of the material to determine the degree of difficulty in processing

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