OEM Fabrication Cone Crusher Main Frame by Large Sand Casting

We make the main frame for crushers.

Main frame is ok for us,better not ask us to produce movable jaw.

The structure for main frame is more simple.

We had made it for some Shanghai or foreign companies.

But our fist product is more for cement mill which is more than 50% of our amount.

1)The engineer will firstly prepare the technology and do a simulation before pouring.

2)We will make a pattern of the main frame based on engineer's technology.

It will cost us around one week.

After that the engineer will check the dimension and make a record.

3)Sand molding making will be made by experienced wokrers.

4)Pouring and cooling.

There are one 8tons electrical arc furnace;

Two 50 tons medium frequency furnace;

One 120 tons refining furnace and one 120 tons VD furnace;

5)Clean the sand and cut the riser before heat treatment

6)Heat treatment will cost 7days( 4 days normalizing and 3 days tempring).

There are 8 heat treatment furances with max. one is 12m*9m*6m.

7)dimension check and draw a line for machining.

8)Rough machining

9)NDT withe qualified inspector

10)Welding repair if needed and tempering for stress relief

11)Final machining and NDT

12)Customers' inspection and packing

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.

There are three workshop for sand mold making,one workshop for machining and one for post procedure.

Our main products are for cement mill(around 30%).

We supply around 400pcs kiln tyres,170 sets of ring gears and 930pcs supporting rollers a year.

We also have rich experience of the castings for shipbuilding with 9 class certificate.

For our company,the bigger the better,

the price will also be better.

We more focus on castings from 3 tons to 150 tons with finished machining.

In my opinion,good quality and reliable service is the most important.

I can't guarantee we are the lowest price,

but I believe we are more reliable with good quality.

Good quality can help our customers and us to avoid many unnecesary problems.

In the market,there is always a lower price,

but it is always fair what the price is what the quality is.

Every year we supply different customers more than 50,000 tons castings,

the other customers' choice can also be a reference for your choice.

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.

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