- Green Sand
- Floor molding
- Squeezers
- Automatic Molding
- No Bake Sand/Resin
- Automatic molding
- Floor molding
Processes
Shell Mold Casting
- SIGMA provides shell mold casting for tighter tolerance molding and superior surface finish.
- Castings from 1 lb-75 lbs.
Stack Mold Casting
This high production method of shell mold casting achieves tighter tolerance and superior surface finish.
Investment Casting
This lost wax method produces the most accurate production castings.
Die Casting
SIGMA uses this high pressure molding technique for aluminum alloys.