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Cast Mill Housing for Rolling Mill

Material:Modified ASTM8620
Application: Forging press
Weight: 25 to 150 tons
Status:pre-machined or finished machining
Class certificate:ABS,CCS,NK,LR,DNV,RINA,BV,KR
Payment terms:T/T or L/C
Availability:
Quantity:

Material


Material StandardGB, EN, DIN, ASTM, GOST, JIS, ISO
Weight3-190 tons
Heat treatment
Normalizing+tempering
Wall thicknessmin. 50mm
Sizemax. 12m*8m*6m


We have the experience of supplying mill housing and roll chock.

Rough or finished machining is up to customers' requirement.

We supply mill housing in different size and weight.

And the mill housings will be inspected by UT and MT to check the crack or inside defects.

Sometime we  will also check the dimension on the machining machine.



Prodution process

1)Pattern making

1

We have our own wooden pattern making workshop.
But our company is always busy,
we also have around 10 sub-contractors for pattern making.
They help us for the pattern but will be inspected according to our rules.
We will record for every pattern inspection.


2)Silica or chorme sand cores

The area for sand mold core making is 8000 m2.

The biggest hollow pit is 87m*16m*(-3.5m)

The deepest pit is 45m*16m*(-6m)

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3)Melting and PouringWe always do the melting after mid-night for cheaper electric charge.

And we normally do pouring in the early morning.

No. Equipment Name Quantity(Set)
1 25 tons Electrical Arc Furnace 1
2 50 tons Intermediate Frequency Furnace 2
3 120 tons Refining Furnace 1
4 120 tons VD Furnace 2


4)Machining

3

We have 3.5 to 10m vertical lathes.

We have 10 sets milling and boring machines.


5)NDT test

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About Haitai

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Haian Haitai Casting Co.,Ltd. is established in 2003 in Huangqiao Town.

In 2007,we moved our factory to Sunzhuang town and now we can supply bigger steel castings with max. weight 45 tons.

In 2011,we built a new sand mold maiking workshop with 120 tons refinining furnace and the max. weight can be 120 tons.

In 2013,we paid more attenion on the castings for shipbuilding and started to supply marine castings for most of domestic famous shipyards.

From 2013 to 2022,we bought more and more machines to strengthen our ability from rough machining to finished machining.

In 2021,we built another new sand mold making workshop for the quick development of market requirement.

Now we monthly supply 6000 tons different castings for different customers of different industry,such as cement mill,shipubuilding,petroleum machinery,rolling mill,forging press and so on.



Testing Equipment

No.
Equipment Name Quantity(Set)
1 Sand analysis equipment 1
2 Impact sample low temperature meter 1
3 Direct reading spectrometer(OXFORD) 2
4 ONH analyzer 1
5 ZEISS metallurgical microscope 1
6 Pendulum impact tester 1
7 Microcomputer controlled electro-hydraulic servo universal test machine 5
8 Various hardness tester 4
9 Magnetic defect detector 5
10 Ultrasonic flaw detector(digital) 1
11 CX-52 Total station 1
12 Stylus roughness meter 1


We do the test according to diffrent production step,

such as chemical composition,UT,MT and mechanical property.

In 2021,Haitai inspection and testing center got approval from CNAS.


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Delivery

We supply a lot of castings for cement mill,rolling mill,shipbuilding and so on.

We can do the packing according to our rules or according to customers' requirement

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