• Ductile Iron Round Manhole Cover from Chinese Foundry System 1
  • Ductile Iron Round Manhole Cover from Chinese Foundry System 2
  • Ductile Iron Round Manhole Cover from Chinese Foundry System 3
  • Ductile Iron Round Manhole Cover from Chinese Foundry System 4
  • Ductile Iron Round Manhole Cover from Chinese Foundry System 5
  • Ductile Iron Round Manhole Cover from Chinese Foundry System 6
Ductile Iron Round Manhole Cover from Chinese Foundry

Ductile Iron Round Manhole Cover from Chinese Foundry

Ref Price:
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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
100 set
Supply Capability:
4000 set/month

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Specification

Connection:
Extrusion molding
Brand Name:
CMAX
Material:
Iron
Color:
black, Grey, green, blue and Marble
Service:
OEM Service
Surface treatment:
Painting
Certification:
ISO9001 2008
Specification:
OEM
Standard:
EN124 Standard
Product Name:
Ductile Iron Manhole Cove
Usage:
Construction,mining
Shape:
Square,round
Size:
Customer's Request
Type:
Moulding Press
Process:
Casting. Deburring .Drilling .threading
Place of Origin:
Hebei, China (Mainland)

Product Description

Material: Cast(Grey) Iron (GG 20, GG 25) and Ductile(SG) Iron(GGG 50).

Sizes: 300 mm X 300 mm (11.81" X 11.81") clear opening to 1200 mm X 1200 mm (47.2" X 47.2") clear opening.

Load Rating: A15, B125, C250, D400, E600 and F900

Painting: Black Bitumen, Epoxy and other paint as per  provided by customers.

Other Features: Hinging, Locking provision available, Leak proof and customized designed available.

Ductile Iron Round Manhole Cover from Chinese Foundry

Ductile Iron Round Manhole Cover from Chinese Foundry


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.


Our Company

We take pride to introduce ourselves as the leading manufacturer and professional supplier of various Ductile Iron Manhole covers in China with total annual capacity 50,000 MT.

CNBM manhole cover regard quality as the essential factor leading to successful business. After years of efforts, CNBM manhole cover have built up great reputation in terms of quality and service among domestic and overseas customers.


Specifications

Ductile Iron Round Manhole Cover from Chinese Foundry

 

FAQ

1.Q: Are you factory ?
      YES!  We are a professional ductile iron &gery iron casting  Factory in China.
2.Q: How long can you make your quotation:
        Within 3 workdays after received your detailed product information
3.Q: Do you provide OEM Service?
       Yes, we provide OEM Service.
4.Q: What 's  your quotation element?
      Drawing, material, weight and quantity.

Q: Explain the heat treatment effect of casting parts, forging parts and welding parts
Good welding of low carbon steel (alloy), probably because the weld workpiece rigidity, fast cooling, the weld internal crystallization of brittle microstructure (martensite), so after welding or welding process welding using self heat, reasonable arrangement of weld, welding seam and heat affected zone heat treatment. The welding heat treatment is often used to preheat before welding, after welding withasbestos cloth covering slow cooling annealing, reach the purpose, its main function is to reduce the internal stress, improve the weld microstructure of martensite formation, reduce brittle tendency, preventing welding cracks.
Q: What is the difference between forging parts and casting parts?
The forging can guarantee the continuity of the metal fiber tissue, make the fiber structure of the forging keep the same shape as the forging, the metal streamline is complete, the tissue is compact, and the mechanical property is good. To ensure that the object has good mechanical properties and long service life, the processing of objects sharp, durable, high strength, first-class quality.
Q: It is generally said that cast iron is re smelted by pig iron. My question is..:1 pig iron for melting iron, is directly cast into products (such as bed cover, etc.); or that is just the first pig iron smelting iron casting, such as to cover, bed and other products, will once again cast iron melt to casting?2, there are many castings to the engine. Are these castings made by the engine manufacturer themselves or bought by others?There is no need to answer all. Thank you!!!
The first to ask, such as casting end cover, bed and other products, is to put the iron melting and casting againThe two question, their casting castings manufacturers than to buy professional casting factory production, production quality more security professional.
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: How to distinguish the forging parts and casting parts accurately
Distinguishing between forging and casting can be done from the following points:From the principle of distinguishingForging processing of machining by hammer or press and other equipment for forging parts produced in hot state, casting processing of metals into liquid, pouring into the cavity with a specific shape, produced by machining parts after cooling solidification. Simply say that forging is the metal soft pinch molding, and casting the metal into thin cooling solidification.
Q: How can the casting be plated with ordinary zinc plating? The coating is too thin and requires 0.08 thickness
Hot galvanizing doesn't seem to workThe zinc layer is 275g/ square meters of material coating is 0.019mm (mm), up to 0.08 thick.
Q: My parts complex, machining costs are relatively high, so want to cast, but the surface needs anodizing, what material will be better?
Yes, the cast aluminium is polarized and gray, but the key problem is to guarantee the quality of the aluminium casting, and the quality of the other aluminium casting is not good.
Q: What reason is the bronze statue choking fire?
The casting process in boiling phenomenon, is the setting of the exhaust hole positioner position or number is not reasonable, the air cavity can not be discharged, overwhelmed by a material inlet, reflux, change mould, sincerely help you look forward to adopt,
Q: ZGMn13 casting parts processing, with what knife head good?
its surface wear resistance is high; the two is with the gradual wear of surface hardening, the hardening layer is continuously formed new if you have suggestions, processing, plasma cutting or flame cutting try
Q: How can the casting be free of trachoma?
Measures for the prevention of trachoma in castings:1, sand compaction to high, paint two times;

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