We partnered with Blendtec to bring you an extra-special teardown today: the complete disassembly of a Blendtec Total Blender! This is the same model that is featured in their famous (infamous?) “Will it Blend?” viral videos. We’re excited to show you exactly what makes the Blendtec blend, so we made a video of the result as well!
* The shaft is made entirely of metal. Other blenders use plastic shafts as a safety mechanism. If the blade gets stuck, the blade/motor connection will sever, as the plastic will either break or melt. The Blendtec blender relies on electronics instead. Should things get out of hand, a sensor will shut off the motor.
* The speed sensor uses inductive pickup to tell the control circuitry how fast the shaft is spinning. This is the same mechanism used by an electric guitar to pick up string vibrations.
* Blendtec informed us that the Total Blender includes what they call a ”hammer-fire” system. The main microprocessor will trigger this system if it detects that the blade stopped spinning. The processor will send a series of strong electric pulses to the motor to free the blades from the obstruction. If that fails, it will shut off the motor to prevent any damage.
* We did not reassemble the blender to see if worked. 13 Amps, spinning at 28,000 RPM (that’s a 270 MPH blade tip speed) on a slightly-unbalanced shaft just strikes us as a bad idea!