The numbering on the Hei-TORQUE models describes the respective torque of the overhead stirrer. For example:
| Hei-TORQUE Expert 100 | = | Overhead stirrers with 100 Ncm torque |
| Hei-TORQUE Expert 200 | = | Overhead stirrers with 200 Ncm torque |
| Hei-TORQUE Expert 400 | = | Overhead stirrers with 400 Ncm torque |