SQ2ZA2 Crane with a Grab on a Tipper Truck in Uzbekistan

A red clamshell grab held out over a pile of earth: photos from our customer in Uzbekistan show a BOB-LIFT SQ2ZA2 knuckle boom crane fitted with a grab on a light tipper truck.

At a glance: SQ2ZA2 2 t knuckle boom crane · Uzbekistan · light tipper truck with a grab · 2 customer photos.

What the photos show

• The truck. A white Isuzu light truck carries a blue tipping body. Red gas cylinders are fitted along the chassis under the body.
• The crane. The red crane, marked BOB-LIFT on the boom, stands between the cab and the body.
• The grab. A red clamshell grab hangs from the boom tip on a rotator, with hydraulic hoses running along the boom to it. The crane's own hook is folded up on the boom.
• At work. In one photo the open grab is held out over loose earth beside a loaded trailer. A worker stands by the truck, and the outrigger foot rests on a concrete block.
• The yard. The ground is unpaved, with low buildings, a block wall and bare trees around it.

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

SQ2ZA2 specifications

The SQ2ZA2 is a 2 t knuckle boom truck-mounted crane with a maximum lifting moment of 4.2 t·m and two boom sections. All figures below are read from the technical department's 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, the SQ2ZA2 lifts 2,000 kg at 2.1 m but only 750 kg at 5.1 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 4.1 m from the slewing centre the crane is rated for 1,000 kg; at the full 5.1 m reach it is 750 kg.

The SQ2ZA2 product page has the full drawings. The same model sits behind the cab of a tipper truck in our delivery record from Cyprus.

Working a grab on a 2 t crane

A grab turns a small crane into a loader for earth, sand or scrap. It also changes how much the crane can really lift. Three things to plan for:

1. The grab counts as load. The grab and its rotator hang from the boom tip all the time. Add their weight to the material in the grab, then check the total against the load chart. At 5.1 m the rating is 750 kg.
2. Wet earth is heavy. A full grab of wet soil weighs more than it looks. Start with part loads at long reach, and keep full grabs close to the column.
3. Outriggers on soft ground. Put a pad or block under each outrigger foot, as in the photo, and keep people out of the area the grab swings over.

Every model around 2 t is listed on the 2 ton crane page, and other capacities are in the knuckle boom truck mounted crane range.

Checking a truck for the SQ2ZA2

Before you order, check three things on your truck. They decide whether the SQ2ZA2 fits it.

• Payload. The crane weighs 650 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 20 L/min at 20 MPa, about 9 kW. The power take-off and pump on your truck must give at least this.
• Outrigger room. The outriggers span 1,870 to 3,020 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.