| SD151S | SD251S | SD-351S | SD-451S | SD-551S | SD-651S | |
| Voltage(V) | 220V/50~60Hz | 220V/50~60Hz | 220V/50~60Hz | 220V/50~60Hz | 220V/50~60Hz | 220V/50~60Hz |
| Size(MM)(L*W*H) | 615*675*860 | 805*695*860 | 1045*695*850 | 1275*695*860 | 1535*695*860 | 1815*695*860 |
| Capacity(L) | 150 | 190 | 301 | 401 | 501 | 601 |
| Cooling system | Static cooling | Static cooling | Static cooling | Static cooling | Static cooling | Static cooling |
| Temperature(℃) | ≦-18℃ | ≦-18℃ | ≦-18℃ | ≦-18℃ | ≦-18℃ | ≦-18℃ |
| Basket No. | Coated Wires, 2 | Coated Wires, 4 | Coated Wires, 4 | Coated Wires, 4 | Coated Wires, 4 | Coated Wires, 4 |
| Thermostat | Mechanical | Mechanical | Mechanical | Mechanical | Mechanical | Mechanical |
| Kind of coolant | R600a | R134 | R290 | R290 | R290 | R290 |
| Door type&door No. | UV Tempered glass doors,2 | UV Tempered glass doors,2 | UV Tempered glass doors,2 | UV Tempered glass doors,2 | UV Tempered glass doors,2 | UV Tempered glass doors,2 |
| Packing size(mm)(L*W*H) | 655x705x890 | 845*765*890 | 1080*765*890 | 1320*765*890 | 1580*765*890 | 1850*765*890 |
| 40HQ laoding quantity | 162CTNS | 125CTNS | 99CTNS | 81CTNS | 65CTNS | 56CTNS |