A stator-rotor-stator spinning disc reactor is presented, which aims at intensification of convective heat-transfer rates for chemical conversion processes. Single phase fluid-rotor heat-transfer coefficients h(r) are presented for rotor angular velocities =0-157 rad s(-1) and volumetric throughflow rates phi v=15-2010-6 m(3)s(-1). The values of h(r) are independent of phi v and increase from 0.95 kWm(-2)K(-1) at =0 rad s(-1) to 34 kWm(-2)K(-1) at =157 rad s(-1). This is a factor 2-3 higher than values achievable in passively enhanced reactor-heat exchangers, due to the 1-2 orders of magnitude larger specific energy input achievable in the stator-rotor-stator spinning disc reactor. Moreover, as h(r) is independent of phi v, the heat-transfer rates are independent of residence time. Together with the high mass-transfer rates reported for rotor-stator spinning disc reactors, this makes the stator-rotor-stator spinning disc reactor a promising tool to intensify heat-transfer rates for highly exothermal chemical reactions. (c) 2015 American Institute of Chemical Engineers AIChE J, 61: 2307-2318, 2015