Currently our standard cantilevers can be ordered with a maximum stiffness of 750 N/m.
Besides that, Team Nanotec allready fabricated cantilevers with stiffnesses as high as 1000 N/m. You are welcome to contact us with your special request.
The resonant frequency of a cantilever made by Team Nanotec GmbH with a stiffness of 40 N/m is about 300 kHz.
The following table gives you a overview of standard cantilevers available from Team Nanotec GmbH.