• Square and Round Ductile Iron Cast Manhole Cover System 1
  • Square and Round Ductile Iron Cast Manhole Cover System 2
  • Square and Round Ductile Iron Cast Manhole Cover System 3
  • Square and Round Ductile Iron Cast Manhole Cover System 4
  • Square and Round Ductile Iron Cast Manhole Cover System 5
  • Square and Round Ductile Iron Cast Manhole Cover System 6
Square and Round Ductile Iron Cast Manhole Cover

Square and Round Ductile Iron Cast Manhole Cover

Ref Price:
get latest price
Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
110 set
Supply Capability:
3900 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:
OEM Products
Usage:
Construction
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.


Specifications


Square and Round Ductile Iron Cast Manhole Cover


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.


Pictures


Square and Round Ductile Iron Cast Manhole Cover

Square and Round Ductile Iron Cast Manhole Cover

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.


FAQ



1. What is your products advantage?

A. All kinds of size as customer's requirements;

B. Small quantity trial order is welcome.

C. Customized design is available and free, Such as Color, Logo, Panel, Load and Dimension etc.

D. Quality control and promptly delivery.

E. Good after sales service.

2. What is your payment?

T/T, L/C, D/P Western Union or as customer's requirements.

3. How about the shipment?

A. Small quantity you can choose by air.

B. Less than one container you can choose LCL shipment by sea.

Q: What are the factors affecting the machining process of the casting material and structure?
The impact on the machining is obvious, it should be the material and heat treatment of the castingCarbon steel parts should be treated by heat treatment (annealing) without special conditions. It can effectively prevent the uneven hardness and hard points. It is easy to turn.
Q: our factory now produces steel castings in the use of polishing directly after spraying processing, but the powder sprayed 15But the spray powder touched off what is the reason we are not very strict requirements not only need to peel off bubbles can also, because our products are steel castings so we use steam hole sludge put on. Do not know if this spray treatment has no effect to thank friends with us!
You oily sludge!Is not the general market on the soil?If it isPlease use two groups of chemicals to reinforce the soilOr suggest your company?Do the putty or paint film after doingThat's better
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: Casting parts have poor surface finish. What sand is used to make them?
Now resin sand, coated sand and other processes are also very good surface.
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: As shown, how do I achieve the tightness test of this product, and achieve industrial production? Seek expert advice.
Precise and tight sealing of the surface to which the test piece is to be tested, equipped with an airtight test instrument, and an electrical control system. You can complete automated testing equipment
Q: What foundry factories are used in the casting parts of China's major automobile manufacturers?
Tangshan Yongding automobile spare parts factory also give a lot of supply, casting factory of Tangshan n to the car enterprises casting wheel gearbox etc.The team of casting experts welcome you to ask questions and accept questions!
Q: Lathe processing stainless steel casting parts to use what type of tool, the speed into the amount of how much tool angle
There is YW1 best, if not using YG6X, YG8 is ok!The speed should not be high, the greater the diameter, the lower the speed! For example, a diameter of 100 mm, speed is not greater than 80 rpm, each point is good!The main tool is the front angle to be larger, more than 6 degrees, and the groove should be wider and larger to reduce the cutting resistance! When the rear angle is properly reduced and the strength is increased, it is recommended to take 3 degrees.The main components are: spindle box, exchange gear box, feed box, slide box, tool post, tail frame, light bar, lead screw, bed, foot and cooling device.Spindle box: also known as the headstock, it is the main task of the rotary motion of the main motor came through the transmission mechanism of a series of positive and negative spindle to be required two different steering speed, the spindle box gives impetus to the movement of the box. Medium spindle is the key part of lathe. The stability of the spindle on the bearing directly affects the quality of the workpiece. Once the rotation accuracy of the main shaft is reduced, the value of the machine tool will be lowered.
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,

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