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:


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Material

Material	C	Si	Mn	P	S	Mo
ZG230-450	≤0.30	≤0.50	≤1.20	≤0.035	≤0.035	0.15-0.25

Material Standard	GB, EN, DIN, ASTM, GOST, JIS, ISO
Weight	3-70 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

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 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.

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