Heating plates are required for manual and repair soldering of assemblies with high heat capacity. On them, the assemblies are preheated over their entire surface together with their partially sensitive components. This reduces the energy input at the soldering point with the soldering tip. The entire soldering process is thus more gentle, since the heat dissipation from the solder joint into the assembly is reduced.

Heating plates are also suitable for melting tests with solder pastes.