二重桁天井クレーン

These double girder overhead cranes play a critical role in the lifting and transport of rockets, ensuring high precision handling for operations such as in-factory movement, transfer, tilting, inspection, testing, and fuel filling.
Equipped with Dafang’s independently developed anti sway, auto positioning, and micro motion control systems, these cranes can reduce load sway by up to 95%, achieve positioning accuracy within 2 mm, and micro motion control precision up to 1 mm. This significantly enhances stability and accuracy during rocket handling operations.
Overhead Crane for Rocket Launch

The rocket launch-dedicated crane developed and designed by Dafang Crane features a horizontal slewing structure without a tower body. Incorporating advanced technologies within the industry, it enables full 360° rotation and is equipped with functions such as anti sway, position memory, precise positioning, and 90° anchoring and locking.
To ensure safety and stability during rocket launch operations, the crane is designed with multiple safety features including wind load torque protection, redundant mechanisms with one active and one standby, and wire rope breakage prevention. It is also equipped with an automatic emergency fault handling system, significantly improving the reliability and safety of rocket launch activities.
Explosion-proof Double Girder Overhead Cranes

This explosion-proof double girder overhead crane is designed for lifting large aerospace equipment such as solid rocket engines.
- This crane is one of the largest explosion-proof crane systems in China and is used in the aerospace industry. It is composed of two 160t explosion-proof hoisting trolleys, a heavy-duty bridge, and integrated three-in-one drive units.
- The two trolleys can lift and lower in perfect synchronization, enabling coordinated hoisting and precise load flipping. With an explosion-proof rating of DIICT4, the crane follows a modern crane design philosophy and is manufactured in accordance with both GB national standards and FEM European standards.
- The entire system features hardened-gear reducers, variable frequency drive control, multiple safety protections, a compact structure, and low energy consumption. It is suitable for all types of explosion-proof environments or areas requiring high safety standards.