Source: How Products Are Made The machinery that Sundback ... and a set of dies then crimps the legs to the tape. A modern zipper machine can make stringers at a rate of 2000 teeth per minute.

An curved arrow pointing right. The Road Zipper is a machine that reconfigures major roadways on the fly by picking up the concrete median and putting it back down one lane over. The system comes ...

The state has zipper-trained mechanics, but still relies on the mainland company to provide technicians for some repairs. The state owns the three machines and spends more than $3 million a year ...

What we like about this project is [Amr] goes through the entire design process to finished product in his video. He starts by showing us the failed zipper, explaining where and why it failed ...