Patented "Double-Zip" Technology Provides Robotic Means of Connecting and Disconnecting
- Eliminates human intervention
- Most advanced technology for lifting operations
FAST! Simply push on and pull off - no twisting and turning, substantially reduces time & labor
SAFE! Provides a means of robotically connecting & disconnecting heavy loads to lifting devices, safe for applications where human intervention is restricted
CONVENIENT! Provides a positive connection without the use of shackles & pins
VERSITILE! Robotic adaptability, ideal for standard lifting operations, especially suited for subsea and nuclear projects
DURABLE! All stainless steel parts, nickel-plated or coated to provide corrosion protection
The "Double-Zip" technology is based on a unique threaded nut that is cut in three segments, allowing it to open up while it is being positioned on a threaded rod, and then closed on the rod. The thread segments are locked onto the rod with the weight of the load to provide a positive connection, which will not release until the load is set down. If the application allows, hydraulic or pneumatic cylinders can also be integrated into the system to release the thread segments. The segmented design also prevents cross threading and assures full engagement of the ZIP-LIFT to the threaded rod.
The locking mechanism of the ZIP-LIFT operates under tension; therefore, the weight of the load secures the load. ZIP-LIFT will not release accidentally.
Example of Applications:
- Move loads of hazardous waste
- Release christmas trees from wellheads in deep water
- Move loads from supply boats onto rigs & platforms
- Retrieve and abandon loads in deep water
The sequential drawings show the advantage of a stud tensioner fitted with the "Double Zip" mechanism that is used in the ZIP-LIFT compared to regular stud tensioners.
Perhaps the most significant innovation of the ZIP-LIFT is the mating of the threads without rotation. It simply pushes on and pulls off – no twisting and turning, and can be fitted with a special hydraulic or pneumatic release mechanism for robotic applications.
The ZIP-LIFT can push onto damaged threads, and is functional even in areas where there is corrosion and marine growth.
The use of shackles and pins is eliminated.