| Main Technical Parameters | Unit | YTQU55B |
| Maximum hoisting capacity | t | 55 |
| Maximum hoisting torque | t·m | 55×3.8 |
| Length of main arm | m | 13~37 (52m is optional) |
| Length of auxiliary arm | m | 6.10~15.25 |
| Total maximum length of main arm and auxiliary arm | m | 43+15.25 |
| Luffing angle of main arm | ° | 30-80 |
| Rope lifting and lowering speed of main winch | m/min | 0~110 |
| Rope lifting and lowering speed of auxiliary winch | m/min | 0~70 |
| Rope lifting and lowering speed of luffing winch | m/min | 0~65 |
| Slewing speed | r/min | 0~2.2 |
| Travelling speed | km/h | 0~1.3 |
| Gradeability (with basic arm and keep the cab rearward) | % | 40 |
| Engine rated output power/rotation speed | kw/r/min | 132kW/2000rpm |
| Model of engine | | Cummins 6BTAA5.9-C180 |
| Total weight (with basic arm and largest hoisting hook) | t | 55 |
| Ground pressure of crawler (with basic arm) | Mpa | 0.069 |
| Counterweight mass | t | 17.5 |
| Crawler gauge | mm | 3360（4520） |
| Wheel track of crawler | mm | 4890 |
| Width of crawler | mm | 760 |
| Maximum transportation weight for a single piece | t | 32 |
| Maximum transportation dimensions for a single piece (length X width X height) | mm | 7200×3360×3360 |
