1. Advanced development & analysis make sure design is very reliable
2. The structure design is more compact, lighter self-weight, greater load ratio, the whole line is reasonable, beautiful.
3. The crane above 6.3T adopts square legs, which can better protect the cylinder.
4. Higher lifting capacity with link-rod system.
5. Outer boom can enter tilt upward(negative elevation angle), so that the crane can enter the lower working space for lifting.