| Model designation | QYD20S | QYD30S | QYD40S | QYD50S | QYD60S | QYD70S | |
|---|---|---|---|---|---|---|---|
| Rated traction weight | kg | 3000 | 3000 | 4000 | 5000 | 6000 | 7000 |
| Rated traction | N | 3000 | 3100 | 6000 | 6100 | 8000 | 8100 |
| Other | Option: Lead-acid battery | Option: Lead-acid battery | Option: Lead-acid battery | Option: Lead-acid battery | Option: Lead-acid battery | Option: Lead-acid battery |