A New Twist on Automated Container Handling

With automated twistlock handling safety is improved as stevedores no longer need to work close to heavy equipment during critical phases of container lifts.

Automation is rapidly gaining ground in container terminals of all sizes. However, until now, one area of container handling has still required manual work, often in dangerous conditions. Stevedores are still removing twistlocks during the discharge process and fixing twistlocks during the load process. They work close to suspended loads and move in the same area as the horizontal transport (straddle carriers or trucks). The handling of centre twistlocks on twin and twin-tandem lifts is particularly dangerous and only possible if the containers are first placed on a rack.

At the same time as vessel sizes are growing, terminals are under increased pressure to increase productivity and provide shipping lines with the most cost-effective service possible. To tackle these challenges, the first fully automated twistlock handling system removes the need for manual handling of twistlocks during the load and discharge process. With an approximately container-sized footprint, the system can be put and moved around on the quay (Automatic Lashing Platform, ALP) or installed on an existing lashing platform on the STS crane leg (Automatic Lashing System, ALS).

With automated twistlock handling safety is improved as stevedores no longer need to work close to heavy equipment during critical phases of container lifts.

Safety and productivity are improved
Automated twistlock handling has numerous benefits. Safety is improved as stevedores no longer need to work close to heavy equipment during critical phases of container lifts. The system provides significant performance gains, especially for terminals using straddle carriers and double-trolley cranes. The time required for twistlock coning and deconing – occupying the spreader – is reduced from approximately 20 seconds to practically nothing. The crane and spreader can immediately return to the loading or unloading operation. This incremental productivity boost is particularly relevant when working on supersized vessels with thousands of containers.

The system also allows personnel resources to be used more efficiently, and occupational safety is improved. A single trained operator can support three to four ALP/ALS units in case of exception and error handling, compared to today when two persons per container are doing the work under suspended loads and in the same area as the horizontal transport.

Automated twistlock handling closes the gap between the quay and automated horizontal transport. The system integrates fully with Terminal Operating Systems to enable optimal planning for the ALP/ALS system. As an added bonus, when used on the quay, the self-contained ALP requires no external power, so no cable runs are required. The system generates its operating energy from the weight of the container being lowered onto the lashing platform.

The ALP/ALS system already supports almost 100 percent of the twistlocks used by the major shipping lines, so automated twistlock handling can be expected to find its place as a key component in automating the flow of containers from ship to shore and back during the coming years.   

More information on automated twistlock handling:
http://www.bromma.com/show.php?id=1524288

 

Comments

  1. I have worked with this as a crane driver and what an effort it was... When you discharge a container on it, its like loading the outboard cell on deck... It needs an operator on hand to program the APL if you discharge a container with only 3 locks in as the APL will look for the missing 4th..So to say that 1 person can look after 3 or 4 APLs then be prepared for alot of lost time. You need to load/unload all the locks from the APL into the ships gear box, once again with only 1 person? It cannot work with a 45 ft container. If the ship has single toggles and you have them pulled to side for discharge the APL cannot deal with it... I can see the idea behind this, but I feel that its not going to happen... The good thing about this is that it took out any jammed lock that it came across due to its hydraulics

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    Replies
    1. The ALP is doinig 45ft and can be operated remotly

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