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Mullite Mold Support Rods

Extruded of high grade mullite or high purity alumina (for higher operating temperature capability), Metsch mold support rods are thermally compatible with most shell systems and all Metsch pouring cup materials to avoid cracking of the shell or pouring cup due to a thermal expansion mis-match.

With it’s Thousand Series line of standard mold support rod products, Metsch makes various profile shapes available without a tooling Charge: Round, Half-Round, Square and Rectangle. Each profile profile shape is available in multiple profile sizes.

All Metsch mold support rods are cut to length in the “green” state before firing to provide a clean end cut and to avoid micro-fractured ends due to “snapping” to length or post-firing cutting. Custom profile shapes and sizes can be quoted upon request.

Metsch mullite-based (MRI 200) support rods offer beneficial product features as follow.

MRI 200 Product Features

  1. High mechanical strength
  2. Over 30 years in continual use
  3. Suitable for “Equiax” casting process
  4. Thermally compatible with the shell system and attached pouring cup


Types and sizes

Consideration of the optimal support rod solution will first be given to the Thousand Series line of mold support rods which is available without a tooling charge. If a Thousand Series model does not meet your requirement, we will assist with the design/build of the custom rod profile/size for your mold and pouring requirements.

Metric dimensions

6.357.934.756.35 x 15.88

Imperial dimensions

1/4″5/16″3/16″1/4″ x 5/8″

See what we can do for you

Whether a model from our Thousand Series line or a custom design product, contact us. Together we’ll come up with the perfect solution.