Research
Cooling time and wall thickness
The cooling a part needs rises with the square of its thickest wall, so a timer can be checked.
Industry source
The standard cooling formula in injection molding handbooks
Parts that come out too warm
A part that comes out too warm can warp or shrink later, so it is checked once cold.
Industry source
Resin suppliers' processing guides
Customer approval of a change
On parts a customer has approved, a shorter cycle generally needs the customer's sign-off first.
Industry source
The automotive industry's rules for approving production parts
Cooling share of a cycle
Cooling is often 60 to 80 percent of a molding cycle, so spare seconds there add up.
Case study
Published cases of shorter injection molding cycles
Cooling channels shaped to parts
Published cases cut cycles by 10 to 40 percent with cooling channels shaped to the part.
Supplier's claim
Published cases and price ranges for mold inserts with shaped cooling channels
Our estimate of spare time
How much spare time the timers hold is our estimate. No timer was shortened on our visit.
Our estimate
Our estimate