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Heavy Duty Customized Large Size Casting Mill Head

Material:ZG42CrMo,ZG35CrMo,SCCrM3B,SCMn2A
Application: cement mill,coal mill,sugar mill
Size: OD1200mm to 12000mm
Module:10-50
Weight: 3 to 70 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

MaterialCSi
MnPSMo
ZG230-450≤0.30≤0.50≤1.20≤0.035
≤0.035
0.15-0.25



Material StandardGB, EN, DIN, ASTM, GOST, JIS, ISO
Weight3-70 tons
Heat treatment
Normalizing+tempering


We supply end mill head for Mesto.

It is made in 4 segements.

The material can be appointed by customers.

For the mill head,we can supply it in finished machining.


Prodution process

Mill head is always not easy to make.

At the beginning,we only make the mill head as a whole one.


Now we supply mill head to Mesto in half or quarter for sag mills.

mill head 4


If the mill head is in quarter,we should leave enough margin to avoid curving.


Recently we get some small orders for segement mill heads from CITIC.

2)Customers' inspection and packing

1648517552(1)

The flange areas and outer face use wooden board to protect and fixed by bolt

Use 120×120×2120mmm wooden pad to support the bottom of flange.

All line bolt holes using rubber plug sealing

3)We choose sand casting for big casting parts.

We can make low carbon or alloy steel castings from 3 to 190 tons.

We prefer big casting parts.

The bigger the better.



About Haitai

P5

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

We supply large steel castings with low carbon or alloy steel from 3 tons to 150 tons per piece.

With a quick development,now we had supplied steel castings 6,000 tons per month.

Many of our castings are for cement mill.

For mill head,when we make it we will pay more attenion on it to guarantee the quality.



Testing Equipment

No.
Equipment NameQuantity(Set)
1Sand analysis equipment1
2Impact sample low temperature meter1
3Direct reading spectrometer(OXFORD)2
4ONH analyzer1
5ZEISS metallurgical microscope1
6Pendulum impact tester1
7Microcomputer controlled electro-hydraulic servo universal test machine5
8Various hardness tester4
9Magnetic defect detector5
10Ultrasonic flaw detector(digital)1
11CX-52 Total station1
12Stylus roughness meter1


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.

There are five main steps of inspection and testings to guarantee the quality of large steel castings:dimension accuracy, chemical composition,mechanical property,ultrasonic test and magnetic powder inspection.

Production Process

Method

Remark

Pattern Making

Dimension Inspection for the pattern

Done by engineer

Melting

Chemical composition before and after pouring


Casting in blank

VT


Heat treatment

Test sample with castings

Mechanical Property

Before first rough machining

Check the dimension and drawing the line


After rough machining

UT and MT


Semi-finished machining

UT and MT


Finished machining

UT and MT




Delivery

Our company is near to Shanghai port and we can supply different packing according to customers' specification.

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