• China manufactory Cast iron Square Sewer Manhole Covers System 1
  • China manufactory Cast iron Square Sewer Manhole Covers System 2
  • China manufactory Cast iron Square Sewer Manhole Covers System 3
  • China manufactory Cast iron Square Sewer Manhole Covers System 4
  • China manufactory Cast iron Square Sewer Manhole Covers System 5
  • China manufactory Cast iron Square Sewer Manhole Covers System 6
China manufactory Cast iron Square Sewer Manhole Covers

China manufactory Cast iron Square Sewer Manhole Covers

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Loading Port:
Qingdao
Payment Terms:
TT OR LC
Min Order Qty:
115 set
Supply Capability:
4000 set/month

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Specification

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

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)
D80*60D400700*500800*60610081
TD90D400905*9051055*1055150260
TD90*60D400904*6001060*762100156
TD75*60D400750*600900*750100140

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

China manufactory Cast iron Square Sewer Manhole Covers

China manufactory Cast iron Square Sewer Manhole Covers

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


1.Q: Are you factory ?
      

YES!  We are a professional ductile iron & grey iron casting  Factory inChina.

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:How to get rid of casting sand inside casting parts?
Are you saying that in the sand casting cavity? We use the manual blast, he is like a pipe will be automatic shot out of the grit, into the casting cavity, to remove the internal cavity in the purpose of casting sand!
Q:There is a little trace of polishingShock polishing is even worseElectrolysis can not be uneven, there is a slight bump
German winter three step mirror polishing 2013 new processYou can free proofing!
Q:Question, such as title, I hope I don't copy the definition of rolling and casting in Baidu encyclopedia, thank you
uch as: automobile transmission shaft adopts mechanical rolling machine with good performance, gray cast iron can play seismic effect effectively, with good thermal conductivity of radiator graphite in gray cast iron, the aircraft engine turbine blade by casting directional solidification casting and Dan Jingzhu.Do everything we can to make the best use of it, the advantages and disadvantages of rolling and casting, and you'll find it yourself, Baidu, depending on how you use it
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
For example, the castings shall be in accordance with the requirements of the second types of castings in the technical requirements for aluminum alloy castings of GB/T9438-1999;
Q:Younger brother is to do casting valve, precision casting parts, the valve internal sand serious, but the appearance is very standard, this is why, for God answers, thank you!
Valve sand core mold drying is not in place, excessive water content
Q:How is the silicon sol precision casting part priced? What is the price per ton of casting? Such as 304 material.
The material is usually steel material price plus the cost (per ton of 2.5-3 million, plus profit).In the Yangtze River Delta region, generally 304 casting price of about 5-5.5 million / ton.The price will be higher if the parts are complex, or a piece weighs less than 100 grams.
Q:The difference between sheet metal and casting parts
Sheet metal refers to the metal sheet (which can be bent straight board, etc.) generally uniform thickness, can obtain the required parts by stamping, molding, welding, splicing and other processing methods.
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:In the design of casting steps and precautions, for casting design, we have what experience?.
A: in the design of metal castings in a complex shape, if the production process is very difficult, should not affect the casting conditions, try to make the casting has simple shape, strong structure change, removed from metallic die for.
Q:What is normalizing, annealing, tempering, quenching? What is the difference between forging parts and casting parts?
For the nodular cast iron, the hardness, strength and wear resistance are improved, such as used in the manufacture of automobile, tractor, diesel engine crankshaft, connecting rod and other important parts. A normalizing and hypereutectoid ball annealing before, can eliminate the mesh two cementite spheroidizing annealing, to ensure that all spheres of cementite. Annealing is a metal heat treatment process, which means the metal is slowly heated to a certain temperature, sufficient for a long time, and then cooled at an appropriate speed. The purpose is to reduce hardness, improve machinability, eliminate residual stress, stabilize size, reduce deformation and crack tendency, refine grain, adjust microstructure and eliminate tissue defects. Its purpose: (1) reduce hardness and improve machinability; (2) eliminate residual stress, stabilize size, reduce deformation and crack tendency; (3) refine grain, adjust microstructure and eliminate tissue defects. In production, annealing process is widely used.

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