SQ16SA4T Marine Crane on a Supply Vessel in the Maldives

A blue telescopic boom crane marked SQ16S at the side of the deckhouse on a supply vessel with a long timber cargo deck: photos and a drone video from our customer in the Maldives show a BOB-LIFT SQ16SA4T marine crane in harbour and at sea.

At a glance: SQ16SA4T 16 t telescopic boom marine crane · Maldives · supply vessel with an open cargo deck · 5 customer photos and 1 video.

What the photos and video show

• The crane. The blue boom carries the BOB-LIFT logo, the model mark SQ16S and the warning NO STANDING UNDER THE BOOM! The crane stands on a pedestal beside the steps up to the deckhouse.
• On deck. In two photos a crew member coils rope on the wooden deck among coconuts, tarpaulins and drums, with the boom lowered level above.
• Boom up. One photo shows the boom raised high and telescoped out, with the hook hanging above a deck marked with a white square and stacked pallets.
• At the yard. Two more photos show the crane at a shipyard, with crew in coveralls and hard hats on deck and a blue boom rest post beside the crane.
• At sea. The drone video follows the vessel under way, its deck loaded with long bundles held down by yellow straps and the crane stowed next to the deckhouse.

These are the customer's own photos and video. No load weights or comments came with them.

About the SQ16SA4T

The SQ16SA4T is an earlier 16 t telescopic boom marine crane. It is no longer in the current range, and the technical department has no current drawing for it, so this record does not quote load figures for it. For a new crane of this size, see the 16 t telescopic boom marine crane page, where each current model has its own dimension and load chart drawings.

Lifting moment is the load times its distance from the slewing centre. That is why the rated load drops as the boom reaches out. For example, a load the crane lifts easily with the boom retracted can be too heavy once the boom is telescoped out. Working radius is the level distance from the slewing centre to the hook. On a vessel or a quay, the pedestal takes the place of outriggers. It must be strong enough for the crane's weight and its full lifting moment. For general crane safety rules, see the OSHA cranes and derricks standard.

A telescopic boom stays straight when it is stowed, so it needs a rest near the tip and a clear strip of deck below it. A 6.3 t telescopic marine crane works in our delivery record from the Maldives, and a 20 t telescopic marine crane works in our record from New Zealand.

A crane on a supply vessel

On a supply vessel, the crane loads deck cargo in port and handles stores alongside. Four points to plan for:

1. Secure the deck cargo. Strap long loads down before the vessel sails, as the video shows, so they cannot shift in a swell.
2. Rest the boom at sea. Lower the boom onto its rest and lock the slewing before leaving port.
3. Keep the area under the boom clear. The warning on the boom says it: no one stands under the boom or the load.
4. Use tag lines. Guide long loads with tag lines so they do not swing into the deckhouse or the rails.

Sea water is hard on steel, so the marine cranes get an epoxy zinc primer with a polyurethane acrylic top coat. Other sizes are in the telescopic boom marine crane range, and the marine crane buying guide covers pedestal mounting in more detail.

What to send us for a marine crane

To match a current crane to your vessel, we need a few details. Short answers are fine.

• The site. The vessel type and length, or the quay, and where the crane will stand.
• The lifts. The heaviest load, and how far from the crane it is picked up and set down.
• The power. The hydraulic power pack you have now, or whether you need a new one.

If you run an SQ16SA4T today, a photo of its nameplate helps too. Send these through the contact page, and our team will check reach and load against the current load charts.

Record compiled by Achord Chan, Product Operations Director at BOB-LIFT, from the customer's photos and video.