• Ductile Iron Manhole Cover A15Manhole Cover A15 System 1
  • Ductile Iron Manhole Cover A15Manhole Cover A15 System 2
  • Ductile Iron Manhole Cover A15Manhole Cover A15 System 3
Ductile Iron Manhole Cover A15Manhole Cover A15

Ductile Iron Manhole Cover A15Manhole Cover A15

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Loading Port:
China Main Port
Payment Terms:
TT or L/C
Min Order Qty:
20 Tons m.t.
Supply Capability:
600 Tons m.t./month

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Ductile iron Manhole cover ---Class A15

 

Class A 15 (group 1 according to EN124)

 

The access covers and grates of this class are capable of withstanding a 15kN (~1.5 tonnes)test load.

 

Usage of Ductile Iron Manhole Cover  :

 

Pedestrians, Pedal Cyclists

 

Features of Ductile Iron Manhole Cover A15:

 

1. High load rating and strength

v Similar hard property as cast iron, while have a overwhelming advantage on stretch recovery.

v Less noise and lower vibration transmissions.

 

2. Against theft and safety options

v Zero theft value, reducing potential accident and further maintenance cost caused by thieves.

v Surface anti-slip thread guarantees safe road condition even in extreme weather.

v Locks are available as an option molded into the cover to improve security rate.

v Non-electricity conduction and non-heat conduction.

 

3. Lightweight 

v Compared with cast iron manhole covers, composited covers are 50% lighter.

v Lightweight allows more loading per vehicle, more convenient transportation and economical saving.

v Allows a safer working condition, which a SINGLE worker is enough when installation without risk of injury.

 

4. Durable service life.

v More than 30 years service life without crack and color fading, comparing to 5 years of cast iron.

v Anti corrosion,water, dust and pets tight, well sealed prevent poisonous gas leaking out.

v Without displacement, freely radio signal passing.

v Higher and lower temperature tolerance with the range -40°C-200°C.

v Wear indicators available when thread depth is in a danger value.

 

5. Free design

v Much more clear resolution ratio of surface design than cast iron or BMC.

 

6. Carbon footprint saving and environmental care.

v Lower embedded energy carbon emission and during manufacturing process than cast iron covers.

 

Packaging of Ductile Iron Manhole Cover A15 :

 

 

Metal band, plastic, wooden pallet

 

Technical Data of Ductile Iron Manhole Cover 

 

Loading pressure

Clear opening mm

Frame size mm

Frame size mm

Weight kg

A15

150*150

200*200

200*200

2.8

A15

200*200

250*250

250*250

4.5

A15

250*250

300*300

300*300

6.3

A15

300*300

350*350

350*350

9

A15

350*350

400*400

400*400

12

A15

400*400

450*450

450*450

15

A15

450*450

530*530

530*530

22

A15

450*600

530*680

530*680

28

A15

600*600

680*680

680*680

32

A15

180*180

303*303

303*303

4.4

A15

228*228

353*353

353*353

7

A15

278*278

398*398

398*398

8

A15

382*382

505*505

505*505

12

A15

482*482

606*606

606*606

18

A15

576*576

706*706

706*706

30

A15

676*676

808*808

808*808

38

 

Delivery Detail of Ductile Iron Manhole Cover  A15:

 

15 days after receiving the deposit.

 

Manhole Cover

 

Manhole Cover

 

Manhole Cover

Q:What is normalizing, annealing, tempering, quenching? What is the difference between forging parts and casting parts?
The aim is to make the grain fine and distribute the carbide evenly. The difference between normalizing and annealing is that normalizing cooling rate is slightly faster than annealing cooling rate, so normalizing structure is finer than annealing structure, and its mechanical properties are also improved. In addition, normalizing furnace cooling does not occupy equipment and has higher productivity. Therefore, normalizing may be used instead of annealing as much as possible. The main application areas of normalizing are as follows: for low carbon steel, after normalizing, the hardness is slightly higher than that of annealing, and the toughness is better. It can be used as the pretreatment of cutting. Used for medium carbon steel, instead of quenching and tempering, as the final heat treatment, or as an induction heating method before surface hardening. Used for tool steel, bearing steel, carburizing steel, etc., it can eliminate or restrain the formation of network carbide, so as to obtain the good organization of spheroidizing annealing. For cast steel, the microstructure can be refined and the machinability can be improved. Used for large forgings, which can be used as final heat treatment, so as to avoid larger cracking tendency during quenching.
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
According to different casting process and parts materials, each has relevant standards, can be found online;
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!
Cast iron has not been done, if it is iron, then in the spray before going through strict pretreatment, the surface can not have a little oil dust
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:In theory, which is more expensive, forging parts or casting parts?
It depends on the structure. In theory, the shape of the forging is relatively simple, but the requirement of internal structure is relatively high
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!
If is casting, internal shell mold may be not completely dry, strength is not enough, resulting in shell mold collapse into molten steel.It is also possible that the refractory is not refractory enough.
Q:What foundry factories are used in the casting parts of China's major automobile manufacturers?
For example Changchun FAW, under a casting, two casting and other casting plant, but there are more than half of all outsourcing in Tianjin Hebei Shandong purchase, many automobile enterprises to casting foundry.
Q:Casting blank in the cooling process to release a large amount of heat energy, what can be recycled?
Casting, do not need to provide a rough casting foundry drawings, according to your chart will put foot margin in the processing needs of the surface, the rest of the size can be found according to the mechanical design manual and manual casting.
Q:When there is no flaw detection for large casting parts, is there any crack inside?
Cracks are considered serious levels of defects and should be repaired
MAXCOVER,rich on the resources for castings and the convenient transportation, is specialized in manufacturing and exporting gray iron & ductile iron anti-stealing manhole covers with frames, grates, pipe fittings and etc. our enterprise covers an area of 15000 square meters .we re-passed the ISO9001:2008 International Quality System Authentication in Aug,2010,adopt the international standard and established the system of the quality assurance arising according to ISO9001 quality level.

1. Manufacturer Overview

Location Tianjin, China
Year Established 2010
Annual Output Value Above US$ 1.5 Million
Main Markets Mid East, Africa, Europe
Company Certifications ISO 9001:2008;

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port Tianjin
Export Percentage 60%
No.of Employees in Trade Department 300 People
Language Spoken: English; Chinese; Spain; Alabic
b)Factory Information  
Factory Size: Above 15,000 square meters
No. of Production Lines 3
Contract Manufacturing OEM Service Offered; Design Service Offered
Product Price Range Average

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