SQ10ZA4 Knuckle Boom Cranes Ready for Mounting in Morocco

A row of red cranes standing folded on the ground, waiting to be mounted: photos from our customer in Morocco show several BOB-LIFT SQ10ZA4 knuckle boom cranes in a yard before they go onto trucks.

At a glance: SQ10ZA4 10 t knuckle boom crane · Morocco · several unmounted cranes · 2 customer photos.

What the photos show

• The cranes. At least five red cranes stand side by side on their bases, each with its boom folded down over the column. The black extension sections and the hydraulic hoses along the booms are visible.
• Not yet mounted. The cranes stand on the ground, not on trucks, with their outrigger beams retracted.
• The yard. The cranes are lined up on bare ground in front of a large open steel shed. Trucks and a white box trailer stand behind them.
• A worker. In one photo a worker in a dark jacket with reflective stripes walks past the row.

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

SQ10ZA4 specifications

The SQ10ZA4 is a 10 t knuckle boom truck-mounted crane with a maximum lifting moment of 21 t·m. Reach and load figures are read from the technical department's load chart drawing; the hydraulic figures come from the BOB-LIFT brochure.

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, the SQ10ZA4 lifts 10,000 kg at 2 m but only 1,880 kg at 10.5 m. Outrigger span is the width between the outrigger feet when they are fully out. Set them on firm, level ground, such as concrete or compacted gravel, before each lift. For ground and outrigger rules, see the OSHA cranes and derricks standard.

At 4.44 m from the slewing centre the crane is rated for 4,700 kg. At 6.43 m it is 3,150 kg, and at the full 10.5 m reach it is 1,880 kg.

The SQ10ZA4 product page has the full drawings. The lighter SQ8ZA4 has the same four-section layout; it works inside a factory in our delivery record from Mexico.

Mounting several cranes at once

When several cranes arrive together, each one still needs its own truck, and each truck must be checked. Three things to plan for:

1. Match each crane to a chassis. Check the frame, wheelbase and front axle load of every truck. The crane weighs 3,350 kg and sits just behind the cab.
2. Hydraulics on every truck. Each power take-off and pump must give 40 L/min at 30 MPa, about 30 kW. Trucks of different makes may need different pump fittings.
3. Test before work. After mounting, set the outriggers, run every function without load, and then make a test lift within the load chart before the truck goes to work.

How we fit cranes to customer chassis is on the mounting and shipping page. Other capacities are in the knuckle boom truck mounted crane range, and every model around 10 t is listed on the 10 ton crane page.

Checking a truck for the SQ10ZA4

Before you order, check three things on your truck. They decide whether the SQ10ZA4 fits it.

• Payload. The crane weighs 3,350 kg. Take this off the truck's payload, then plan the body and the loads you carry with what is left.
• Hydraulic power. The crane needs 40 L/min at 30 MPa, about 30 kW. The power take-off and pump on your truck must give at least this.
• Outrigger room. The outriggers span 2,310 to 5,610 mm. Make sure the frame has room for them, and that your job sites do too.

Send us 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 photos, the technical department's drawing and the BOB-LIFT brochure.