There are many processes affecting investment casting cost. We analyze some main factors as following.

Production rate due to casting system

Production rate is percentage of actual castings weight to total casting system weight. it is affected by structure of castings and the pouring system. Usually it is from 30 percent to 60 percent.

The unit weight casting cost is inversely proportional to the production rate. and lower production rate, the more influence.

Let us take Qingdao Refidus as an example, one of the best quality and cost investment casting companies in China.
It spend about one US dollar to pouring each kilogram melt metal at Qingdao Refidus, when production rate is 50 percent , Casting part will cost two USD per kilogram.

So the production rate is one important factor affecting whole casting cost. According to this, we should try to design the casting pouring system with higher production rate, however the shrink feeding capacity of casting system will be lower, when the patten tree be designed with higher production rate.

As an excellent and profession investment casting OEM service provider, Qingdao Reifuds are analyzing the castings through casting CAE software to get the best quality and lowest cost.

The layers of shell

Due to the different casting shape and structure, the casting shell need different layers. For example, three or more layers is necessary for castings with thin and long holes or grooves, however common castings may only need two layers.
And the bigger castings, the more layers needed.

Usually in Refidus, The shell cost for unit kilogram casting is about 1.5 USD. Amount this, material cost is about 70%, fuel and electricity cost is about 20%, human cost is about the balance 10%.
And silica sol shell is much expensive than water glass shell.

So we know that, It is much different capacities to control quality and cost in in manufacturers. Excellent vendor can save customer’s time and cost. and can help customer win more market opportunities together.

If you have any question or doubt about investment castings, please do not hesitate to contact with us, Qingdao Refidus is more than glad to help you at any time with profession service.