| SD-12Q | SD-15Q | SD-17Q | SD-18Q | SD-20Q | |
| Voltage(V) | 220V/50~60Hz | 220V/50~60Hz | 220V/50~60Hz | 220V/50~60Hz | 220V/50~60Hz |
| Size(MM)(L*W*H) | 1200*750*850 | 1500*760*850 | 1680*750*850 | 1800*760*850 | 2000*760*850 |
| Capacity(L) | 390 | 510 | 570 | 620 | 690 |
| Cooling system | Static cooling | Static cooling | Static cooling | Static cooling | Static cooling |
| Temperature(℃) | ≦-25℃ | ≦-25℃ | ≦-25℃ | ≦-25℃ | ≦-25℃ |
| Basket No. | Coated Wires, 3 | Coated Wires, 4 | Coated Wires, 5 | Coated Wires, 5/6 | Coated Wires, 5-6 |
| Thermostat | Digital | Digital | Digital | Digital | Digital |
| Kind of coolant | R290 | 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 |
| Packing size(mm)(L*W*H) | 1220*790*895 | 1520*790*895 | 1800*900*950 | 1820*790*895 | 2020*790*895 |
| 40HQ laoding quantity | 102 | 75 | 60 | 54 | 42 |