Our Focus: Your Success

AJ Tool, LLC is a Plastic Injection Mold Builder in Hubertus WI, USA.  For nearly 50 years this family-started business has been providing its customers with high quality, precision molds at competitive prices.  Our flexibility allows to be build anything from quick prototypes, to multi-cavity tools.

We offer engineering services, including part and mold design with optimization and good molding practices as the focus.  Our Project Managers offer decades of successful experience.  We can supply mold flow simulations, conformal cooling solutions,  and mold process development / sampling services.