page_title: SawStop
section_title: Product
hierarchical_section_title: SawStop / Product
caption_attribution_description: English: Saw breaking cartridge after activation. Notice the aluminum frame has been crushed as a result of impact by moving saw blade. Notice how the spring has been bent upward.
context_page_description: SawStop is a table saw manufacturer headquartered in Tualatin, Oregon, US. The company was founded in 2000 to sell table saws that feature a patented automatic braking system that stops the saw within milliseconds if its blade comes in contact with the operator's hand or other body part.
  Table saws are dangerous woodworking tools. The operator holds the wood, rather than the saw, making it easy to guide both fingers and wood into the saw. In the United States, roughly 10 table saw finger amputations occur daily.
context_section_description: According to the manufacturer, the saw stops in less than five milliseconds, and angular momentum retracts the blade into the table. The operator suffers a small scratch instead of serious injury.  The design takes advantage of the difference in conductance and capacitance, between wood and flesh.
  The SawStop "Jobsaw'"s 10-inch blade turns at 4000 rotations per minute (RPM). This means the circumference moves at about 2000 inches per second. Therefore, the blade normally moves at about 2 inches per millisecond.
caption: Saw braking cartridge after activation. Notice the aluminum frame has been crushed as a result of impact by moving saw blade, and the spring has been bent upward.
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