| 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 |
Factory door
Office building
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.
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.
wheel hub pattern
stern boss pattern
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.
sand cores for sheave
sand cores for mill housing
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.
12m*8m*6m heat treatment furnace
120 tons rotary shot blasting machine
5)Machining
Before we do the machining,we will check the margin and draw a line.
half gear
segement mill head
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.
10m vertical lathe
milling and boring machine
5x16mCNC planer type milling
We can do rough or finished machining according to customers' requirement.
stern tube machining
stern boss machining
mill head machining
forging press part
sheave
grinding table
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
BV
CCS
DNV
LR
NK
CNAS
CNAS
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.
roll chock inspection
rocker arm inspection
punch mold inspection
stern boss inspection
mill housing inspection
grinding table inspection
Before delivery,we will do enough protection on the machining surface,such as anti-rust oil,soft rubber or other seaworthy packing.
gear wheel in wooden case
sheave in wooden case
kiln tyre packing
punch and die tooling packing
support roller packing
hollow shaft packing
After packing,we will send our goods to customers from Shanghai airport.
108 tons stern boss delivery
segement mill head
56 tons bed frame
casting for bridge
110 tons grinding table delivery
casting