D70 Air Film Coil (AFC)
D70 Air Film Coil (AFC)

The AFC is an air-cooled coil that provides a focal magnetic field and powerful temperature cooling for a variety of research applications. The AFC’s fan permits minimal down time between the running of high intensity protocols, such as high-frequency repetitive pulse protocols and theta burst stimulation (TBS). The AFC has recently been improved to increase its cooling performance whilst also reducing noise. A sham version is available for single and double-blinded research.

The AFC Sham coil looks identical to its active version, replicates stimulation sounds, and delivers a very shallow magnetic field to mimic the sensation of magnetic stimulation.


Rapid2 (Standard)
Super Rapid2
Super Rapid2 Plus1
Cooling Mechanism
Air-cooled; Integrated
Coil Cable Length

A. Average inductance only. This should not be taken as the exact inductance of individual coils.

Not all companies measure field dynamics, strengths, coil dimensions etc in the same way.
For specific coil information please contact us directly. 

Illustrative example(s) of the magnetic field intensity and distribution

Users in the USA, the Magstim D70 Air Film Coil (AFC) is a stimulating coil intended for use with the Magstim Rapid² Stimulating Unit for the purpose of peripheral nerve stimulation.
All other uses including the use of the D70 Air Film Coil (AFC) with the Super Rapid² Plus¹ are considered investigational. In accordance with US federal regulations an IDE and/or IRB approval may be required.