Ningbo Castwell offers a wide range of sand castings sourcing services in aluminum,brass,ductile iron,iron etc.
The advantages & disadvantages of sand casting
1) Low capital investment means that short production runs are viable;
2) Use of sand cores allows fairly complex shapes to be cast;
3) Large components can be produced;
4) Suitable for small banch production( small production rates)
1) The process has a high unit cost, as it is labor intensive and time consuming;
2) The sand mold leaves bad surface finish, due to sand indentation and oxidizing medium, which often requires further processing;
3) Cannot make thin sections;
4) Not suitable for mass production, oftenly used to produce few number of products compared with other casting proccesses which produce thousands and millions.
engine blocks, gear blanks, crankshafts, brake drums etc