SQ6.3ZA2 Crane Unloading Concrete Blocks in Lebanon

An orange knuckle boom crane with a hydraulic block clamp, lifting a full pallet of grey concrete blocks off a teal flatbed truck while a worker watches: a video from our customer in Lebanon shows a BOB-LIFT SQ6.3ZA2 knuckle boom truck-mounted crane unloading blocks.

At a glance: SQ6.3ZA2 6.3 t knuckle boom truck-mounted crane · Lebanon · flatbed truck with block clamp · 1 customer video.

What the video shows

• The crane. The orange crane with the BOB-LIFT name stands behind the cab, with its boom folded over the deck.
• The clamp. A black block clamp hangs from a rotator at the boom tip. Its arms close around a whole pallet of blocks.
• The lift. The crane picks a pallet of hollow concrete blocks from the teal flatbed, swings it over the side and sets it down on the ground with the other pallets.
• The crew. A worker in a cap stands by the truck and watches each pallet go down.
• The site. A multi-storey concrete building under construction and a building with a blue roof stand behind, under a clear sky.

This is the customer's own video. No load weights or comments came with it.

About the SQ6.3ZA2

The SQ6.3ZA2 is an earlier 6.3 t knuckle boom truck-mounted 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 6.3 t knuckle boom truck-mounted 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 extensions are pushed out. Outrigger span is the distance between the outrigger feet. A wider span keeps the truck steadier when the crane slews to the side. For general crane safety rules, see the OSHA cranes and derricks standard.

With a clamp on the boom, the crane unloads a pallet in one lift and the crew never handles single blocks. A 6.3 t crane works on a truck in our delivery record from Mexico, and a 3.2 t crane lifts bulk bags in our record from Indonesia.

Unloading blocks with a clamp

A block truck with its own crane and clamp can deliver to a site with no forklift. Four points to plan for:

1. Count the clamp in the load. The clamp and rotator hang on the hook all the time. Add their weight to every pallet when you check the load chart.
2. Check the pallets. Broken pallets or loose straps can drop blocks. Look at each pallet before the clamp closes.
3. Set the pallets down on level ground. A stack placed on soft or sloping ground can tip once the clamp lets go.
4. Keep the crew clear. No one should stand under the clamp or between the pallet and the truck while it swings.

Other sizes are in the knuckle boom truck-mounted crane range, and the mounting and shipping page explains how mounting is handled.

Checking a truck for a 6.3 t crane

Before you order a current 6.3 t crane, check three things on your truck. They decide whether the crane fits it.

• Payload. The crane, its subframe and the outriggers all come off the truck's payload. Plan the body and the equipment you carry with what is left.
• Hydraulic power. The power take-off and pump on your truck must give the flow and pressure the crane needs.
• Space on the frame. Make sure the frame has room for the crane and its outriggers next to the equipment already on the truck.

If you run an SQ6.3ZA2 today, a photo of its nameplate helps us. Send the make, model and wheelbase of your truck through the contact page, and our team will check the fit.

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