| Dimension | Unit | QAY300 | 
| Overall length | mm | 18210 | 
| Overall | mm | |
| Overall | mm | 4000 | 
| Weight | ||
| Total weight in travel | kg | 79680 | 
| Front axle load (axle 1, 2, 3) | kg | 11625 | 
| Rear axle load (axle 4, 5, 6, 7) | kg | 11201 | 
| Power | ||
| Engine model | TAD722VE | |
| OM502LA.III/5 | ||
| Engine rated power | kW/(r/min) | 194/2100 | 
| 420/1800 | ||
| Engine rated torque | N.m/(r/min) | 2700/1080 | 
| Travel | ||
| Max. travel speed | km/h | 75 | 
| Min. turning diameter | m | 24 | 
| Min. ground clearance | mm | |
| Approach angle | ° | 19 | 
| Departure angle | ° | 19 | 
| Max. gradeability | % | 40 | 
| Oil consumption per 100km | L | |
| Main performance | ||
| Max. rated total lifting capacity | t | 300 | 
| Min. rated radius | mm | |
| Turning radius at turntable tail | m | |
| Max. lifting torque | kN.m | 9526 | 
| Base boom | m | |
| Fully extended boom | m | |
| Fully extended boom + jib | m | |
| Outrigger longitudinal distance | m | 8.7 | 
| Outrigger transverse distance | m | 9.2 | 
| Working speed | ||
| Boom luffing time | s | |
| Boom full stretching time | s | |
| Max. swing speed | r/min | |
| Max. speed of main winch (single rope) (no load) | m/min | |
| Max. speed of aux. winch (single rope) (no load) | m/min | |

crane with 4-axle drive | crane with 8-axle chassis | crane with 9-axle chassis