Vacuum drying assisted by controlled vibration.
The sealed vessel is heated through its jacket and operated under vacuum. Controlled vibration continually turns and moves the material, renewing heat-transfer surfaces and promoting uniform moisture removal without a conventional internal agitator.

| Equipment Model | Heat-Transfer Area (m²) | Motor Power (kW) | Equipment Weight (kg) |
| ZDG-50 | 0.81 | 1.1 | 500 |
| ZDG-300 | 2.45 | 1.5 | 1100 |
| ZDG-500 | 3.83 | 2.4 | 1400 |
| ZDG-800 | 4.79 | 3.2 | 1600 |
| ZDG-1000 | 5.80 | 3.2 | 2400 |
| ZDG-1200 | 6.92 | 5.5 | 2700 |
| ZDG-1500 | 8.80 | 5.5 | 3100 |
| ZDG-2000 | 11.84 | 7.5 | 4200 |
| ZDG-2500 | 13.50 | 7.5 | 4500 |