O'Fallon Casting's facility is located in O'Fallon, Missouri near St Louis.
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O'Fallon Casting has completed their certification to the newest revision of AS9100, revision D.

Construction on Phase 2 of O'Fallon Casting's expansion is nearly complete.  The construction phase of the project will be complete by the end of the second quarter of 2018. The new pre-inspection, shipping and fixture rooms are complete and ready for equipment.  The new lunch and restrooms are being built

The second phase of O'Fallon Casting's plant expansion is currently in process.  The construction phase of the project should be complete by the end of May 2018.

Technical Articles

Many confuse the word “Affordability” with the word “Price”.  They are not the same and there are quite a large number of articles available that are devoted to defining Affordability.  The short rendition, however, is that Affordability equates to the total cost of ownership.

Over the years, we have had the pleasure of having participated in numerous Collaborative Engineering events, several of which were quite unforgettable.  One instance occurred about ten years ago and began with a rather panicked phone request from an owner of a machine shop.  As it stood he was seriously delinquent on a contract because multiple casting suppliers had proven unable to produce a particular casting to print.  They had suggested their customer that O’Fallon Casting might be able take one of the existing two molds and manufacture “good” castings from it. 

Minor oversights during the design phase of a casting can lead to unintended downstream costs.  Let us consider two case studies we have encountered recently as examples of how overlooking the requirements of specifications on your drawing can lead to extraneous manufacturing steps. 


As a premier manufacturer of investment castings, O’Fallon Casting holds itself to the very highest of standards.

Our Services:

O'Fallon Casting's Laser Marking provides its customers with a new option for a consistently legible,...

Digital Radiography captures an X-ray image digitally, removing film from the equation and simplifying the...

To reduce the time and cost of bringing new parts to market, customers increasingly are...