SQ16ZA5T Marine Crane in a Shed Before Mounting in Chile

A large yellow knuckle boom crane standing on its round slewing base on the floor of a steel-framed shed, with its boom folded and two big black lift cylinders in view: a photo from our customer in Chile shows a BOB-LIFT SQ16ZA5T marine crane before it goes on a pedestal.

At a glance: SQ16ZA5T 16 t knuckle boom marine crane · Chile · crane in a shed before mounting · 1 customer photo.

What the photo shows

• The crane. The yellow boom carries the BOB-LIFT name and the marking SQ16ZA5. The boom is folded down beside the column, with the extensions packed behind it.
• The cylinders. Two large black hydraulic cylinders run from the column to the boom. These do the main lifting work.
• The base. The column sits on a round slewing base with a ring of bolts. A hydraulic motor is fitted on the base, and a bundle of black hoses runs down beside it.
• The setting. The crane stands on a concrete floor under a red steel roof frame, with steel sheets and other parts stored around it.

This is the customer's own photo. No load weight or comments came with it.

About the SQ16ZA5T

The SQ16ZA5T is an earlier 16 t knuckle 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 knuckle 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 close to the column can be too heavy once the extension is pushed 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 crane this size goes onto a pedestal as a heavy single piece, so the bolt ring and the pedestal flange must match before the lift. A 12 t marine crane stands on a pedestal in our delivery record from Taiwan, China, and a 20 t telescopic marine crane works in our record from New Zealand.

Before a large marine crane goes on its pedestal

The work on the ground decides how smooth the fitting is. Four points to plan for:

1. Match the bolt pattern. Check the bolt circle, the hole count and the flange flatness on the pedestal against the crane base.
2. Lift the crane safely. Use the marked lifting points and a crane or hoist rated for the full crane weight. Keep the boom folded and tied.
3. Keep the hoses clean. Leave the caps on the hose ends until they are connected, so no dirt enters the hydraulics.
4. Torque and test. Tighten the base bolts to the specified torque, then run every motion with no load before the first lift.

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 knuckle 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 or quay, 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 SQ16ZA5T 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 photo.