Mold Building

TJAR Innovations uses precision and accuracy in building every mold, recognizing the ever-changing composite and plastic world of manufacturing. TJAR uses the most up-to-date technology, such as, SolidWorks design, MasterCam programming, and CNC operations. With these programs, TJAR can give customers confidence and reassurance that the molds we produce will be completed with the utmost accuracy and precision.

Integrity, Determination, Honesty, and Drive

Mold Design

Whether simple or complicated TJAR designs tools with the highest quality and accuracy. Offering the following mold design capabilities. We design tools for high volume, high tolerance production for the life of your project.

Our experienced designers are equipped with state-of-the-art software including Solid Works. They assess the part design and make modifications and recommendations based on key product requirements including product usage and function. They look for answers to questions such as:

• How will the part be used? What is its application?
• Is it a standalone product or a component of a larger assembly?
• What are the dimensional and tensile requirements?Does the part need to withstand elements, pressure, chemicals?
• Does this part meet our requirements for volume and size?


Taking all these manufacturing factors into account is a challenging task and one that requires a strong knowledge base, not only of mold design but the injection molding process as well. It’s the first key step of our concept to completion manufacturing solution at TJAR, and we strive to get it right from the start.

Mold Building

Building the tool takes time and a great deal of accuracy. It can also represent the largest investment in the manufacturing process, so getting it right is critical to the success of a project. If your goal is to manufacture parts with a high degree of precision TJAR will be your best partner.

It’s all in the details quality precision mold built to last for years is an investment in your company. Several variables impact the cost including:

The Cavity Material — High volume class 101 are made from hardened steel that can withstand the pressures of a long production run while still meeting close tolerances
The number of cavities — We look to maximize cavitation’s in the mold to maintain the highest level of productivity. In general, we recommend creating one mold per part versus creating a family mold which tends to produce inferior products and has more downtime due to maintenance issues.
The mold base — The base holds all of the mold cavities, inserts and components together. The cost of the base is estimated based on the size of the mold and the type of steel used to make the base as well as the customization required.
Core/cavity machining — All molds must also be customized. Customization includes the placement of cores, cavities, ejectors, cooling lines, etc.
Part complexity — Just as the number of cavities plays a role in determining the cost of the mold, so does part complexity. This includes the surface finish of the final part as well as the number of undercuts required.

Our designers and toolmakers work closely together to ensure quality, optimized cycle times, precision tolerances, and guaranteed tool life.

Mold Repair and Refurbishment

TJAR specializes in emergency repairs and engineering changes even when CAD data or prints are not provided.

• Emergency fixes
• Repair broken lifters
• Damaged slides
• Seized ejector pins
• Design changes to cavity area
• Mold Maintenance
• Repair and replace ejector pins
• Install new components
• Open closed vents
• Make new tool components
• New core/cavity inserts
• Custom mold components
• Overhaul damaged tools
• Repair damaged cavity finish/polish