The HRW agitators are used as holding tanks between the HCM batch mixers and the pump. In the slowly revolving agitator, the grout suspensions are homogenized and possible air bubbles removed.
| Agitator | HRW | 150 | 350 | 800 | 1200 | 2000 | 3000 |
| Usable Content | L | 150 | 350 | 800 | 1050 | 2000 | 3000 |
| Electric Motor 50 Hz | kW | 0.55 | 0.55/1.1 | 0.55/1.1 | 1.5 | 3.0 | 3.0 |