Cold Runner
Cold Runner is one of the feed systems, that a channel is formed between the two halves of the mold. The other feed system is called Hot Runner.
What cold runner looks like?
Below is a typical cold runner.
Types of cold runner system
Based on the number of the plates, there 2 types of cold runner: two plates and three plates. Tooling cost of three plates are higher than two plates. Below are animations of these plates. You will see the difference.
Three-plate mold
Two-plate mold
Pros and cons of cold runners
Pros
Cons
Cold runner or hot runner?
At Plastopia, we will choose runner system for you if the molds will remain with us for molding productions. Also, we guarantee a life-time production.