Together, Ditemsa and TEI bring over 100 years of experience to the metal casting industry and a broader range of products, services and technologies to better serve its customers. This positions Ditemsa and TEI, to meet growing demand in Mexico, the U.S. and the rest of the world with the supply of reliable and high quality products and services.

Ditemsa and TEI, are leaders in the design, engineering, manufacture and maintenance services for high volume foundry tooling for green sand molding, hot and cold core boxes, gravity dies, low and high pressure die together with plastic injection molds.

36 Years of Experience in Designing & Manufacturing Tooling for:


Aluminum Core
Package System (CPS)

Grey Iron
Greensand Molding

Hot and Coldbox

Fixtures &
Assembly Aids

Sand Pack Development
& & Mold Studies


  • Design and project management support on all programs.

  • Large CNC and Crane capacity to support engineering changes and maintenance to existing tooling, large or small.

  • Reverse engineering by GOM scanning and modeling back into a 3D system.

  • Close location to North American Foundries giving fast response to engineering changes, breakdowns and technical reviews.


Ditemsa currently has a quality system certified under ISO-9001: 2008, from BSi which allows us to guarantee our customers receive products and services that meet their requirements in terms of quality, cost and delivery.
Quality control is performed throughout all our processes by highly trained personnel, who apply standard working procedures that allow us to ensure satisfactory and reliable results.

In addition we have high-tech equipment for inspection of parts such as: GOM Scanning Equipment and coordinate measuring machine CMM.