SawStop CNS175-SFA30 - Contractor Saw 30" Aluminum Extrusion Fence and Rail Kit
SawStop table saws are the most advanced saws in the world, setting the standard for table saw safety.
SawStop saws are equipped with a safety system that detects when someone accidentally contacts the spinning saw blade, and then stops the blade in milliseconds. In most cases, such an accident would result in just a nick on a SawStop saw, instead of the devastating injury which would likely occur on an ordinary table saw.
The system induces an electrical signal onto the blade and then monitors that signal for changes. The human body has a relatively large inherent electrical capacitance and conductivity, which cause the signal to drop when a person contacts the blade. Wood has a relatively small inherent capacitance and conductivity and does not cause the signal to drop.
The electrical signal drops quickly when the blade touches the finger. When the detection system sees dips like these, it knows a person has touched the blade.
In order to stop the saw, a fast-acting brake stops the blade when contact is detected. The brake includes a heavy-duty spring to push a block of aluminum, called a brake pawl, into the teeth of the blade to stop the blade from spinning. The spring is held in compression by a fuse wire until contact is detected. When contact is detected, the system sends a surge of electricity through the fuse wire to burn the wire and release the spring. The spring pushes the brake pawl into the teeth of the spinning blade, and the teeth cut into the aluminum and bind, thereby stopping the blade. All this happens in about 3–5 milliseconds, or 1/200th of a second. At the same time, the angular momentum of the blade causes the blade to retract below the table and the power to the motor is shut off.
The aluminum brake pawl pivots into the teeth of the blade. The brake pawl is part of a replaceable cartridge that includes the spring, fuse wire and electronics necessary to burn the fuse wire. An optional dado cartridge provides the same protection for dado cuts.
The standard and dado brake cartridges are single-use components that must be changed if the brake is ever activated. Changing a brake cartridge is fast and easy, no more complicated than changing the blade.
SawStop didn’t stop at their patented safety system.
Includes aluminum extrusion fence & 30" rails.
SawStop warrants to the original retail purchaser of a new contractor saw from an authorized SawStop distributor that the saw will be free from defects in material and workmanship for ONE YEAR from the date of purchase. SawStop warrants to the original retail purchaser of a refurbished, demonstration or floor model contractor saw from an authorized SawStop distributor that the saw will be free from defects in material and workmanship for SIX MONTHS from the date of purchase.
This warranty does not apply to defects arising from misuse, abuse, negligence, accidents, normal wear-and-tear, unauthorized repair or alteration, or lack of maintenance. This warranty is void if the saw or any portion of the saw is modified without the prior written permission of SawStop, LLC, or if the saw is located or has been operated outside of the country where the authorized SawStop distributor from whom the saw was purchased resides.
Please contact SawStop to take advantage of this warranty. If SawStop determines the saw is defective in material or workmanship, and not due to misuse, abuse, negligence, accidents, normal wear-and-tear, unauthorized repair or alteration, or lack of maintenance, then SawStop will, at its expense, and upon proof of purchase, send replacement parts to the original retail purchaser necessary to cure the defect. Alternatively, SawStop will repair the saw provided it is returned to SawStop, shipping prepaid, with proof of purchase and within the warranty period.
SawStop disclaims any and all other express or implied warranties, including merchantability and fitness for a particular purpose. SawStop shall not be liable for death, injuries to persons or property, or incidental, consequential, contingent or special damages arising from the use of the saw.
This warranty gives you specific legal rights. You may have other rights, which vary from state to state.
No Warranty of Safety
It is important to understand that SawStop® saws do not prevent injuries. They work to minimize the severity of injuries. In fact, an injury must occur before the SawStop® safety system reacts. The severity of the injury will depend on the speed at which a person contacts the spinning blade. You may incur a serious injury on a SawStop® saw. If you decide to use the saw in Bypass Mode, the safety system will be disabled and it will not activate in the event you contact the spinning blade.
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