When processing with a laser cutting with an expensive cutting tool or with a plasma cutting machine, it is necessary to carefully check the operation so as not to collide until a new program is created and confirmed. Moreover, when colliding with some trouble, it is necessary to protect breakage of expensive tools. The QuickSTOP collision sensor is a sensor module to avoid accidents that are obstacles in the line for low cost and mass production. Dynamic variable crash sensor using pressure drive sends a stop signal to the system controller when it experiences impact, collision or overload. At the same time it releases the air chamber, absorbs shock, and provides protection for each axis of X, Y, Z. This product can be used for various applications such as material handling, loading and unloading equipment, parts mounting, arc welding.