Meaning
Tooling purchase agreements define the minimum number of injection cycles a mold is guaranteed to perform before requiring major repair or replacement. In shot-life guarantees, the toolmaker commits to a specific lifespan based on the materials and manufacturing standards used to build the mold. This guarantee gives the processor and the brand owner confidence in the long term supply of their molded parts.
Classification Link
The guaranteed number of cycles is directly linked to the tooling classification used during the design phase. A high volume tool constructed from hardened steel receives a guarantee of one million cycles or more. Conversely, a low volume prototype tool made from aluminum or pre hardened steel receives a much shorter guarantee, often around ten thousand cycles.
This classification ensures that the tooling budget matches the expected production volume of the part.
Wear Factor
Abrasive fillers and corrosive resins speed up the wear of mold inserts, which can shorten the actual operating life of the tool. Resins containing glass fibers or mineral fillers erode the gate area, while flame retardants release corrosive gases that attack the mold surface. To maintain the guarantee, the processor must use the specified materials, run the tool within designed parameters, and perform scheduled preventative maintenance.
Contractual Remedy
If the mold fails to meet the guaranteed cycles due to material defects, the toolmaker is responsible for repairs. This protection is critical for avoiding unexpected expenditures. This contract ensures that the financial risk of tooling failure is shared.