• 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:
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) 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: Casting parts need to be subjected to the kind of heat treatment after the weldment is finished
This is difficult to say, the key is to see the specific parts and components, the final mechanical performance requirements.For example, gray cast iron, usually graphite annealing, to heat treatment annealing, surface quenching and so on, ductile iron can be a variety of annealing, normalizing, quenching and isothermal quenching, surface treatment, chemical treatment and so on, in a word, heat treatment of steel can usually, nodular cast iron can do. Malleable cast iron and vermicular cast iron are often subjected to graphitization annealing and stress relieving annealing, while wear-resistant cast irons often undergo quenching + low temperature tempering, and so on.Welding is the case, such as bearing steel welding must be quenched + low temperature tempering, machine spindle welding (repair welding) must be quenched and tempered treatment, and so on. Of course, if it is a general weld, there is no need for heat treatment or, at most, stress relieving annealing.
Q: What is the difference between forging parts and casting parts?
The casting parts are low in cost and short in production period. Because the molten iron has good flow properties, complex shapes can be formed. But because there may be sand holes, pores, shrinkage holes and other defects, the quality is unstable, easy to produce many defects, mechanical properties are not forged well, thus affecting the service life.
Q: What method of casting does not rust? I think the sample is like oil
The surface of a general casting is easy to rust. In order to prolong the rusting period, antirust paint or antirust oil is usually sprayed. What you said should be anti rust oil.
Q: What are the casting parts tested?
The surface brightness, appearance, size, chemical composition, weight, material, surface defects, internal defects, seals need to be checked, leakage, etc.
Q: What is the difference between casting and stamping parts?
The purpose of forming processes is to allow the sheet to undergo plastic deformation without breaking the billet and to make the desired shape and size. In actual production, a variety of processes are often applied to a workpiece. Blanking, bending, shearing, drawing, bulging, spinning and rectification are several main stamping processes. The difference between stamping parts and castings: with thin, uniform, light, strong features, stamping can be produced by other methods difficult to make, with stiffeners, ribs, UPS or flanging of the workpiece, to improve its rigidity. Due to the use of precision molds, the workpiece accuracy up to microns, and repeated high precision, specifications consistent, you can punch out of the hole, lug and so on.
Q: Where is the precision casting factory?
Shandong, DongyingThe birthplace of precision casting
Q: What kind of flaw detector is better for casting parts?
If the casting is very small, can be used for fixed magnetic detection machines, of course with fixed magnetic powder the testing machine, the best first contact the manufacturers, because the fixed magnetic particle testing machine belongs to the non-standard equipment, according to the workpiece size, different shape, manufacturing daily inspection and measurement.
Q: What foundry factories are used in the casting parts of China's major automobile manufacturers?
For example Changchun FAW, under a casting, two casting and other casting plant, but there are more than half of all outsourcing in Tianjin Hebei Shandong purchase, many automobile enterprises to casting foundry.
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
Q: Shandong foundry, casting small pieces of precision casting
Small foundry in Shandong too much, like many of us in Qingdao, then Dongying Changshun investment casting is a home, they are also casting precision casting equipment, specifically what I recommend that local enterprises, far is not convenient,

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