Product Introduction
| Production date | 2020 |
| Product Model | STT139 |
| Maximum Lift Capacity | 6t |
| Freestanding Height | 45m |
| Jim Length | 60m |
| Tip Load | 1.3t |
| Standard Section Dimensions | L46A1 |
The Yongmao STT139 is a flat-top tower crane with a tie-rod-less design, reducing the tower height and making it suitable for multi-tower operations and confined spaces, thus improving work efficiency. Its rigid structural design avoids alternating stress, extending the lifespan of the steel structure. It is suitable for short-term, intensive construction environments, especially small-scale building projects.






