Foundry Capabilities
On average, Thompson pours 20,000# lbs. of aluminum and magnesium each day. Three
molding methods are utilized: Green sand, precision dry sand, and permanent mold.
Castings ranging from a few ounces to 2,000 pounds are cast on a daily basis.
Green Sand

Click to enlarge.
- Suitable for all types of alloys and applications.
- Produces small and large castings, up to 500 lbs.
- Fast turnaround times.
- Design changes are easily made.
- Capable of producing a .100" wall thickness.
Equipment
- One (1) Osborne 3161 Rotalift
- One (1) international cope and drag system
Permanent Mold
- Ideal for high volume runs with consistent repeatability.
- Produces sound castings with excellent mechanical properties.
- Excellent density, detail, and dimensional accuracy.
- Suitable for castings up to 120 lbs.
- Capable of producing a .100" wall thickness.
Dry Sand
Thompson utilizes a proprietary process called Investocure. Our proprietary binder system produces castings within a +/- .020" tolerance and wall thicknesses as low as .080".
- Dimensionally accurate piece after piece.
- Excellent metallurgical integrity; capable of producing a grade-A x-ray casting.
Core Room
TAC has the ability to produce any type of core needed. Our sand cores range in size from ounces to 12,000 lbs. These cores are produced on a wide variety of equipment:
- Two (2) twin screw dependable mixers capable of producing 950 lbs. of sand per minute.

Click to enlarge.
- Two (2) Gaylord core shooters.
Our Work
Here are some of our previous casts. Click on any image to enlarge.