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3 To 190 Tons Large OEM Cast Steel Casting for Cement Mill/shipbuilding/forging Press

Material:Low carbon or alloy steel
Weight:3 to 190 tons heavy steel casting parts;
Application:Cement mill/ball mill/vertical mill,shipbuilding,rolling mill;
 
Availability:
Quantity:
  • 001

  • OEM

About Us


Established year 2003
Factory area 100000 square meters
Material low carbon or alloy steel,such as 4140,SC1045 and so on
Weight 3 to 190 tons
Application Cement mill,shipbuilding,oil and gas,rolling mill,sugar mill,paper mill
Inspection Chemical composition,UT,MT,Mechanical property,HB
Heat treatment Normalizing and tempering,quenching
Annual output 72000 tons(6000 tons per month)
Payment terms T/T,L/C,down payment bank guarantee if needed
1

Factory door

2

Office building

P6-3

Testing center with CNAS approval

Our factory is locatd in Sunzhuang town,Haian,Nantong,Jiangsu,China.

When you visit us,we can pick up you from Shanghai Pudong airport.

From our factory to the airport will be around 2.5 hours.

Production Process

1)Pattern making

We normally use wooden patterns.

The patterns will be made according to engineer's desgin.

Before we use the pattern,our engineer will check the dimension and make a record.

If the quantity for same casting is more than 10pcs,the pattern will be free.

1

wheel hub pattern

56

stern boss pattern

1

bearing housing pattern


We will only store the pattern for our customer one year to save space.


2)Sand cores making

Most of the sand cores are made by silica sand.

For important position or R corner,we will use chorme ore sand.

We use the silica sand to form the pattern and input CO2 to harden it.

We have around 80 technicians for sand mold making.

Most of them has more than 10 years' experience.

1

sand cores for sheave

1

sand cores for mill housing

4 (4)

chorme ore sand cores

3)Melting and Pouring

We do the melting in the mid-night and do the pouring in the 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

We will check the chemical composition befoe and after pouring.

4)Heat treatment

We can do the normalizing and tempering.

It will be 4 days for normalizing and 3 days for tempering.

Quenching will be done by our sub-contractor if needed.

The size for our max. heat treatment furnace is 12m*8m*6m,

it is also the biggest size of castings we can make.


热处理炉

12m*8m*6m heat treatment furnace

抛丸

120 tons rotary shot blasting machine

5)Machining

Before we do the machining,we will check the margin and draw a line.

半齿圈划线

half gear

分体端盖划线2

segement mill head

3

casting for steam turbine


We have 3.5m to 10m vertical lathes.

We also have 10 sets of milling and boring machines.

We have one 5x16m  and 2.5x6m CNC planer type milling machines.


3

10m vertical lathe

12

milling and boring machine

2

5x16mCNC planer type milling 

We can do rough or finished machining according to customers' requirement.

艉柱3

stern tube machining

艉柱6

stern boss machining

4

mill head machining

2

forging press part

1

sheave

3

grinding table


Certificate

We have all class certificate,such as DNV,LR,BV,NK,ABS,CCS and so on.

We also get approval from CNAS.

For oil and gas,we have API certificate.

ABS

ABS

BV-1

BV

CCS-1

CCS

DNV.GL-1

DNV

LR

LR

NK

NK

CNAS

CNAS

检验机构CNAS认可证书英文

CNAS


Inspection

1)Chemical compositon

Before and after pouring,we will do the chemical composition test.


2)NDT

After first rough machining,we will do UT and MT to check the crack or inside defects.

轴承座检验_副本

roll chock inspection

1

rocker arm inspection

5

punch mold inspection

微信图片_202211170926294_副本

stern boss inspection

6

mill housing inspection

1

grinding table inspection


Delivery

Before delivery,we will do enough protection on the machining surface,such as anti-rust oil,soft rubber or other  seaworthy packing.

1

gear wheel in wooden case

58

sheave in wooden case

13

kiln tyre packing

12

punch and die tooling packing

1

support roller packing

中空轴包装3

hollow shaft packing


After packing,we will send our goods to customers from Shanghai airport.

2

108 tons stern boss delivery

1

segement mill head

5

56 tons bed frame

桥梁件发货

casting for bridge

7

110 tons grinding table delivery

2

casting


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