• C250 B125 D400 Ductile and Casting Iron Manhole Cover and Frames System 1
  • C250 B125 D400 Ductile and Casting Iron Manhole Cover and Frames System 2
  • C250 B125 D400 Ductile and Casting Iron Manhole Cover and Frames System 3
  • C250 B125 D400 Ductile and Casting Iron Manhole Cover and Frames System 4
  • C250 B125 D400 Ductile and Casting Iron Manhole Cover and Frames System 5
  • C250 B125 D400 Ductile and Casting Iron Manhole Cover and Frames System 6
C250 B125 D400 Ductile and Casting Iron Manhole Cover and Frames

C250 B125 D400 Ductile and Casting Iron Manhole Cover and Frames

Ref Price:
get latest price
Loading Port:
Dalian
Payment Terms:
TT OR LC
Min Order Qty:
150 set
Supply Capability:
4500 set/month

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Specification

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

Product Description



1)Product information
Manhole Covers are manufactured for construction and public use. Manhole Covers shall be smooth and free from sand holes, blow holes, distortion or any other defects
2) Material
a) Ductile Iron GGG500-7 & 400-12
b) Grey Iron GG20
3) 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
4) Process
c) Molding boards
d) Green sand with hand molding
5) Coating
a) Cold applied black bitumen
b) Without coating
c) Coating as per customers' requirement
6) Different accessories are available

C250 B125 D400 Ductile and Casting Iron Manhole Cover and Frames

C250 B125 D400 Ductile and Casting Iron Manhole Cover and Frames

C250 B125 D400 Ductile and Casting Iron Manhole Cover and Frames

Specifications



Double triangle ductile iron manhole cover
1.Standard:ISO 9001 EN124 D400
2.Service:OEM
3.High quality
4.Made of ductile


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.


Our Services



1. Sample is available for free.

2. OEM and ODM are welcome.

3. Free charge of design labels and cartons.

4. Professional technical support with free charge.

5. After the cooperation: Any of your problem will be solved within 24 hours.


FAQ



About Sample

Q : Can I get free samples?

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

About Customer Logo

Q:  Can I have my own logo on the product?
A: Yes, you can send your logo design to us and send us the authority letter. Then we can cast the logo on body.

Q: How is the silicon sol precision casting part priced? What is the price per ton of casting? Such as 304 material.
I am doing this for sale, if the price is mainly based on the product structure, the difficulty of pricing. At present, if it is more formal and material guarantee manufacturers generally in 48-53 yuan /Kg (of course, products have a certain weight, such as greater than 100g), our company's current price of about 53 yuan /Kg or so. .
Q: What are the requirements for casting steel castings?
1, high quality requirements of the surface or the main processing surface should be placed below.
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: 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: The difference between cement sand castings, resin sand castings and vacuum casting parts
The clay wet sand castings casting weight from a few kilograms until tens of kilograms, but the clay dry type of casting production can be weighed dozens of tons.For medium and large castings, cast iron, cast steel can be self hardening sand with resin can be water glass sand production, can obtain the precise size, smooth surface castings, but casting precision, surface roughness, density and microstructure, mechanical properties and material cost of sand casting production is often poor, so when the higher performance requirements of castings, should adopt other casting methods, such as casting (lost wax casting), die casting, low pressure casting.
Q: What are the causes of pitting on the surface of a precision casting?
The quality of the shell surface is out of order. Or shot blasting out of question.
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: Why do casting parts have air holes?
First, from the source, tools, raw material drying, in the process of melting into the reaction gas, another influence is pouring process, such as high temperature solidification gas dissolved too much after not excluded. The method can adjust the pouring temperature properly, control the source of gas (drying and controlling the inoculant, especially the content of magnesium), and add cooling iron to change the solidification mode. It depends on what kind of casting you are. You can't make it clear at once. And molding sand relationship is mainly water content and permeability, brush coating resin content.
Q: Is 316 casting better than 304 casting?
The degree of difficulty in the process of casting depends mainly on the structure, precision requirements, and hardness of the casting.
Q: How to solve casting defect casting?
Different defects, different solutions, some shortcomings, the current domestic level can not be resolved

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