• Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 1
  • Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 2
  • Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 3
  • Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 4
  • Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 5
  • Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei System 6
Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei

Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei

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) production standard: EN124 

2) Material: grey iron, ductile iron

3) Type:round type and Square type,triangle

4)we can produce as per customers'drawings

Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei

Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei




Specification



Item No.ClassClear Opening(mm)Frame Size(mm)Frame Height(mm)Unit Weight (kg/set)
TD1221D4001220*6751378*831100
216
TD1222D4001220*6751370*83015080.5



Advantages



Superior quality, bending and impact strength, anti-corrosion, water-proof,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 other companies.

 Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei


Packaging & Shipping



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

 

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

 

Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei

Cast OEM ductile iron manhole covers with high quality for industres and construction made in Hebei



FAQ


1.Can I get free samples?

A: Yes, we can provide you the free sample, but you need to bear their own delivery costs.

2.Can I request to advance the shipment?

A: It should be depends on whether there is sufficient inventory in our warehouse.

3.Can I have my own Logo on the product?

A: Yes, you can send us your drawing and we can make your logo, but you have to bear their own the cost.

Q: Explain the heat treatment effect of casting parts, forging parts and welding parts
The three methods of metal processing have one thing in common. They are hot working, which are different in temperature and range of processing. Ductile cast iron is widely used because of its brittleness and poor impact. Heat treatment of cast iron usually adopts the annealing process, reduce the casting effect: 1 because of the internal stress caused by the thermal expansion and contraction, reduce the deformation after machining, decrease surface hardness, improve machining conditions;
Q: Casting parts need to be subjected to the kind of heat treatment after the weldment is finished
Annealing is needed to eliminate stress and refine grain
Q: the parts of the threaded hole is casting, casting the hole directly, and then tapping or casting, and then punch 10When the casting is ready, punch it again before tapping it Is the hole casting good or is it punched and tapped on the drilling machine after casting?
If it is not directly cast hole hole, later processing, large pores may be directly cast out,
Q: What is the reason for 304 stainless steel precision casting parts to be changed?
Steel deformation control is one of the most common problems in the metal processing industry. Any process will occur. The casting is the largest deformation and the least fine. It is generally used to produce blank blanks
Q: For example, casting parts contain many holes, inclusions and other defects, the size and the number of holes exceed which limit is not qualified
According to different casting process and parts materials, each has relevant standards, can be found online;
Q: Why do casting parts have air holes?
There are many reasons for casting porosity, mainly due to:1. smelting process is unreasonable, metal liquid absorbs more gas;2. the gas in the mold invades the metal liquid;3. from the mold is more water brush, core dry;4. the casting has poor ventilation;5. ladle tools are not dry.Wait。
Q: Cause of choking of casting parts
Choke fire is the process of pouring a large number of gases can not be discharged smoothly, boiling in the metal liquid, resulting in a large number of castings in the pores, and even incomplete casting defects
Q: What foundry factories are used in the casting parts of China's major automobile manufacturers?
This is too muchYou do not have a specific list of statistics, but there are many foundries in china!Moreover, car prices are unlikely to be ordered in the local factories!
Q: Which master knows how the casting tolerances for malleable iron, gray iron and ductile iron should be chosen? Hurry up, thank youCan you provide a tolerance scale for castings, please?
Usually manual molding optional CT11 class, ordinary machine modeling optional CT10 class, high pressure molding should reach CT9 level. The tolerances on the wall thickness of the casting are comparable to those of other dimensions of the same casting.
Q: The difference between sheet metal and casting parts
Commonly used in machine tools casting material is gray cast iron, casting bearing alloys can also be.

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