• Ductile Iron Manhole Cover of Heavy Duty with EN124 Standard of Square or Round System 1
  • Ductile Iron Manhole Cover of Heavy Duty with EN124 Standard of Square or Round System 2
  • Ductile Iron Manhole Cover of Heavy Duty with EN124 Standard of Square or Round System 3
  • Ductile Iron Manhole Cover of Heavy Duty with EN124 Standard of Square or Round System 4
  • Ductile Iron Manhole Cover of Heavy Duty with EN124 Standard of Square or Round System 5
  • Ductile Iron Manhole Cover of Heavy Duty with EN124 Standard of Square or Round System 6
Ductile Iron Manhole Cover of Heavy Duty with EN124 Standard of Square or Round

Ductile Iron Manhole Cover of Heavy Duty with EN124 Standard of Square or Round

Ref Price:
get latest price
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) Designs: based on EN124 standard and according to customer's drawing or samples.

2) Color: black, Grey, green, blue and Marble , etc.


3) Applications: water supply and drainage, fire engineering, natural 


4) Inspection: in-house or the third party as per customer's request.

Ductile Iron Manhole Cover of Heavy Duty with EN124 Standard of Square or Round

Ductile Iron Manhole Cover of Heavy Duty with EN124 Standard of Square or Round

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 of Heavy Duty with EN124 Standard of Square or Round

Ductile Iron Manhole Cover of Heavy Duty with EN124 Standard of Square or Round




Specification


No.Item No.ClassClear Opening(mm)Frame Size(mm)Frame Height(mm)Unit Weight (kg/set)
1CHB40B125310×310400×4003010
2CHB50B125400×400500×5004817
3CHB60B125500×500600×6005026
4CHB70B125600×600700×7005037
5PBC200B125140×140200×200254
6PBC300B125200×200300×300307
7PBC400B125300×300400×4003010
8PBC500B125400×400500×5003317
9PBC550B125450×450550×550332



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. 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 from China. The key point is to find a reliable supplier who is honest and professional to take care of the quality and delivery time.











Q: What are the factors affecting the machining process of the casting material and structure?
The impact on the machining is obvious, it should be the material and heat treatment of the castingCarbon steel parts should be treated by heat treatment (annealing) without special conditions. It can effectively prevent the uneven hardness and hard points. It is easy to turn.
Q: What's the effect of casting copper?
Riga. Copper is copper components, promote the graphitization of the copper element, make dense tissue, and to refine and improve the uniform distribution of graphite, which can reduce the chilling tendency of the cast iron, but also can promote the formation of pearlite, has a favorable effect on the section sensitivity. Copper has the tendency to strengthen cast iron, ferrite and pearlite, so it can increase the strength of cast iron. The tensile strength and bending strength of cast iron almost increase with the amount of copper in it, especially in low carbon cast iron.
Q: The cause of fracture and why there is no toughness
This question is too broad, see what the casting casting Oh in order to reduce the wayward cast steel, ductile iron, gray iron and white iron, you can choose the material according to their own requirements.
Q: What should I pay attention to when designing a casting structure?
1 of the casting in metal mold cooling was faster than sand, metal type and let, thus casting in metal mold casting, casting stress generated in the ratio of sand casting to crack tendency is also large, but also prone to misrun and cold lap, white (for casting casting). Defect. Usually: (1) in the prevention of metal casting casting crack aspect should pay attention to the following problems: the structure of A in wall thickness, wall transition and connection to the ease, corner fillet appropriate requirements such as should be more strict than sand casting; B should be connected vertically connected with the wall to tilt C; for the weak parts of the structure should be set to strengthen ribs, bosses, to prevent casting; D should minimize the obstacle free shrinkage of the boss, casting rib, flange and other prominent part; E in the casting arrangement of ribs, but also should consider its influence on the casting shrinkage.
Q: How to cast iron and wrought iron collocation
3, if you have a file in the hand, can be used to file to see finish can also make a judgment from the file down the iron can also be seen, but this is beyond your request, it can be done in the factory. 4, if placed in the grinder grinding, see iron spark from a judge or iron wrought iron, but this is only to do in the factory. About it, may not be full, but through these methods, generally can distinguish between iron or wrought iron.
Q: When there is no flaw detection for large casting parts, is there any crack inside?
According to the industry standards, within the scope of the standard requirements to determine whether the product is qualified
Q: Why should pig iron be used in casting?
Cast iron is generally called pig iron, but casting is not merely iron casting.For example, injection molding, die casting, and so on, in fact, cast iron, cast steel, cast aluminum, plastic and so on, can be used in the form of casting processing molding
Q: What do you mean by "proofing" in the casting? Do you charge for the proofing?
Proofing? In the casting industry is not called proofing, proofing is generally used in the printing industry, that is, according to the customer's drawings or samples, to do a first piece, to provide customers with the inspection process to meet their requirements;In the foundry industry, providing prototypes is sometimes difficult:1, customers if the provision of mold, it would be best, at this time, sample costs are very low, and almost the same as your regular products;2, the customer does not provide the mold, but in business relationships, your factory and not very sure must take this one, it requires your leadership decision-making, is free or low cost, or by a strict process offer (of course sample);3, not all of the casting process to provide samples are difficult, like lost foam can directly make a white NC prototype, and then assembled pouring, this is her unique advantages, first cost less than the opening process and so on;If you don't understand, you can continue to question me
Q: In the design of casting steps and precautions, for casting design, we have what experience?.
Two: the basic structure unit in the design of metal casting type and the parameters selected, usually should also pay attention to: (1) because of the metal type heat quickly, so the metal type casting minimum wall thickness should be bigger than the sand casting, metal type casting alloy minimum wall, different size of castings see table 1.1-31 thick can be selected; (2) the inner wall of the casting internal ribs and the thickness of wall thickness should be 0.6-0.7 connected, or as the inner wall (rib) cold slowly, cracks in the wall at the junction in the casting shrinkage;
Q: What's the cause of the choking of the casting?,
3. when casting the environment is humid, sand mold has not removed the moisture, when the casting, the moisture instantaneous transforms into the steam, causes the blowhole

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