• Ductile Iron Manhole Cover with  Square or Round  in China System 1
  • Ductile Iron Manhole Cover with  Square or Round  in China System 2
  • Ductile Iron Manhole Cover with  Square or Round  in China System 3
  • Ductile Iron Manhole Cover with  Square or Round  in China System 4
  • Ductile Iron Manhole Cover with  Square or Round  in China System 5
  • Ductile Iron Manhole Cover with  Square or Round  in China System 6
Ductile Iron Manhole Cover with  Square or Round  in China

Ductile Iron Manhole Cover with Square or Round in China

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 
c) Molding boards 
d) Green sand with hand molding 
4) Coating 
a) Cold applied black bitumen 
b) Without coating 
c) Coating as per customers' requirements

 

Specification


Item No.ClassClear Opening(mm)Frame Size(mm)Frame Height(mm)Unit Weight (kg/set)
TD90D400905*9051055*1055150
262
TD90*60D400904*6001060*762100156
TD75*60D400750*6001055*1055100140


Ductile Iron Manhole Cover with  Square or Round  in China

Ductile Iron Manhole Cover with  Square or Round  in China



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  Square or Round  in China

 

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.

 


FAQ

 

1. How about your price?

  A: As one of famous manufacturers of Ductile iron products inChina, Our prices are very favorable and competitive. The customers from all-over the world.


2. Can I request to change the form of packaging and transportation?

  A: Yes, We can change the form of the packaging and transportation according to your requirement, but it maybe let your purchasing cost changed also.

 

3. Could you specially design and produce for clients?

  A: Of course, we have all kinds of professional engineers. We can design and produce special products according to customers' requirements. Such as: special size, special control, OEM, etc.

 

 

 


Q: What are the casting parts used to test shrinkage holes?
1. anatomy. It is easy to slack off by sawing and machining.
Q: How to improve the surface roughness of casting parts?
First, the accuracy of the model should be improved; two is to change the molding technique; the three is the coating; and the worker's technical level.
Q: What are the requirements for casting steel castings?
2, the plane should be placed on the following.3, thin parts should be placed below.
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: The difference between cement sand castings, resin sand castings and vacuum casting parts
Vacuum casting is the process of using ventilation molds. Molten metal flows into the mold by air pressure, and then removes air to form a vacuum. The casting process is mainly used for small parts or jewelry with exquisite detailsCompared with the traditional clay sand casting, heat hardening resin sand casting production with low surface roughness, high precision, good quality characteristics, dimensional accuracy of resin sand mold after hardening with good rigidity and high, and not easy to deform, so in the choice of process parameters, mechanical processing you can select a smaller margin, thereby reducing the consumption of metal solution and machining cost, which can improve the dimensional accuracy of castings.
Q: What's the density of the cast iron? The density is thin and the density is thin
There is a hot knot in the thick area, which easily causes microscopic shrinkage and makes the casting not dense. A riser may be added for shrinkage relief.
Q: How can the casting be plated with ordinary zinc plating? The coating is too thin and requires 0.08 thickness
Hot galvanizingGenerally 0.06 mm or more
Q: Which surface is coarser for cast iron or cast steel castings? Why?
The surface of the steel is more rough, because the coating sand cast steel cast iron particles compared with graphite coating degree, the other one is to get a better air permeability and collapsibility of sand, the compaction degree is smaller than iron.
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: 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;

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