Find out more today SawStop table saws are the only cabinet saws that detect blade contact with skin triggering our stop saw brake technology. Make your workplace safer today. How It Works. Brake Activation An aluminum brake springs into the spinning blade, stopping it in less than 5 milliseconds!
Power to the motor is shut off. Reset Resetting the saw yourself is easy. Accident Victims "It flung my finger. I couldn't turn the saw off because I was in shock. Finger Saves "Just a small nick on my thumb and not a more serious injury.
When skin contacts the blade, the signal changes because the human body is conductive. The change to the signal activates the safety system. Brake Activation An aluminum brake springs into the spinning blade, stopping it in less than 5 milliseconds!
Power to the motor is shut off. Reset Resetting the saw yourself is easy. Simply replace the blade and affordable brake cartridge and your saw is operational. The entire reset process takes less than five minutes. See SawStop in action for yourself. Check out this video:. Yet, the main difference lies in how quickly their blades stop when they come in contact with flesh. Let me explain the dynamics behind this automatic braking system. Well, it works because the blade can pick up the electrical signals generated by your finger, which, in turn, triggers the brake cartridge located underneath.
Once triggered, the brake cartridge springs upwards, then stops the saw almost instantaneously. The blades and cartridges of these saws, of course, are easy to replace. The SawStop System can be subdivided into four basic phases, namely: monitor, detect, brake activation, and reset. The blade bears a low electrical signal which is continuously monitored by the safety system. Moreover, this electrical signal is generated by an oscillator. This pulsed electrical signal is a volt, kHz electrical signal.
This pulsed electrical signal is conveyed to the blade using capacitive coupling. On the other side, a plate picks up this signal and sends it to the threshold detector.
Once there is contact with human skin or flesh, the threshold detector detects a below-the-threshold level of the signal. If there is a loss of signal of around 25 microseconds, the detector will immediately fire. So, using a inch blade, a tooth of that inch blade will remain in contact with the skin for microseconds.
The detector will detect this contact with even one tooth contact of the flesh with the blade. When the brake is activated, a spring pushes into the blade the aluminum block.
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