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Knuckle Boom Truck Mounted Cranes

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3.2 Ton Knuckle Boom Truck Mounted Crane

Model SQ3.2ZA4JSQ3.2Z Series

Choose your configuration

2 configurations in this series

Boom sections

1 main boomStandard

Compared with SQ3.2ZA3: Max reach ⁦+1.7 m⁩ · Lifting height ⁦+2 m⁩ · With winch (optional)

Winch version: about 70–110 kg heavier, exact self weight confirmed with your quote

Max lifting capacity
3,200kg
Max lifting moment
6.8t·m
Max reach
9.4m
Lifting height
≈ 11.5m
Self weight
—
3.2 Ton Knuckle Boom Truck Mounted Crane SQ3.2ZA4

Engineering data

Technical Specifications

SQ3.2ZA4J

Model code explained

SQ
BOB-LIFT crane
3.2
3.2 t capacity class
Z
Knuckle boom
A4
1 main boom + 3 hydraulic booms

Choose your configuration

Model Configuration Max reachLifting heightSelf weight
SQ3.2ZA3 A3 · No winch 7.7 m ≈ 9.5 m 1,330 kg
SQ3.2ZA3J A3 · With winch 7.7 m ≈ 9.5 m —
SQ3.2ZA4 A4 · No winch 9.4 m ≈ 11.5 m 1,450 kg
SQ3.2ZA4J A4 · With winch 9.4 m ≈ 11.5 m —

Knuckle boom truck mounted cranes can be built with or without a winch.

— Winch version: about 70–110 kg heavier, exact self weight confirmed with your quote

Lifting

Max Lifting Capacity
3,200kg
Max Lifting Moment
6.8t·m
Rotation Angle
400°
Max Working Radius
9.4m
Max Lifting Height
≈ 11.5 m
Max Boom Angle
75°

Hydraulics and power

Recommended Power
14kW
Hydraulic System Flow
25L/min
Hydraulic System Pressure
25MPa
Oil Tank Capacity
60 L

Machine

Self Weight
—
Installation Space
850mm
Outrigger Span
2250–3513 mm
Compare all Knuckle Boom Truck Mounted Cranes

Figures from the BOB-LIFT technical drawings. Confirm the final specification with our team before ordering.

Dimensions and load chart

SQ3.2ZA4 dimension drawing and load chart

Select the drawing to view it full size.

How much it lifts at each reach The further the hook is from the crane, the less it can lift: 3,200 kg at 2.1 m, 520 kg at 9.4 m.
Lifts (kg) 3,200 1,350 910 680 520
Reach (m) 2.1 4.4 6 7.8 9.4

Reach is measured from the slewing centre to the hook. Figures from the drawing above.

Product details · SQ3.2ZA4J

3.2 Ton Knuckle Boom Truck Mounted Crane SQ3.2ZA4

3.2 t knuckle boom truck mounted crane

More videos4

Series video: it shows a crane of the same capacity and boom type, so paint and options can differ from this model.

More videos

The SQ3.2ZA4 is one of 18 models in our Knuckle Boom Truck Mounted Cranes range, which runs from 1.6 t to 50 t.

The SQ3.2ZA4 is a 3.2 ton knuckle boom truck crane. It lifts 3,200 kg at 2.1 m, 1,350 kg at 4.4 m and 520 kg at its full 9.4 m reach, with a 6.8 t·m maximum lifting moment and 400° slewing. The crane itself weighs 1,450 kg.

What the 3.2 ton SQ3.2ZA4 is built for

The SQ3.2ZA4 folds its four-section boom into a compact package behind the cab: stowed, it is 2,450 mm wide and 2,040 mm high and needs only 850 mm of chassis length, so it fits light and medium trucks and leaves most of the bed free for cargo. With four boom sections it reaches 9.4 m, yet the crane weighs only 1,450 kg. That suits light trucks delivering building materials, garden and landscaping supplies and small equipment, and municipal service fleets. With the boom raised, the tip reaches about 11.3 m above the crane base.

Rated capacity always depends on radius. At 6 m the SQ3.2ZA4 lifts 910 kg and at 7.8 m it lifts 680 kg, so check the weight of your heaviest regular load at the distance you need before you choose a tonnage. If you need more capacity close to the truck, the SQ4ZA3 4 ton knuckle boom crane lifts 1,750 kg at 4.35 m.

Load at each radius

2.1 m 3,200 kg
4.4 m 1,350 kg
6 m 910 kg
7.8 m 680 kg
9.4 m 520 kg

Figures from the SQ3.2ZA4 load chart with the boom horizontal. Do not lift more than the chart shows at your working radius. Download the SQ3.2ZA4 load chart (PDF)

Mounting it on your truck

The SQ3.2ZA4 mounts on a truck chassis behind the cab. These are the figures your body builder needs from the dimension drawing:

Installation space behind the cab 850 mm
Outrigger span 2,250–3,513 mm
Width of the crane when stowed 2,450 mm
Height of the crane when stowed 2,040 mm
Hydraulic supply 25 L/min at 25 MPa, about 14 kW
Oil tank 60 L

Send us your truck make, model and wheelbase, and we check that the chassis and power take-off suit the crane before you order. Download the SQ3.2ZA4 dimension drawing (PDF)

All knuckle boom truck cranes · How to choose a knuckle boom crane

Optional attachments

  • Hydraulic gripper opened and closed by its own cylinder to grab and release loads.
  • Clamshell bucket for loading, unloading and light digging of waste, chippings and soil.
  • Orange peel grab for scrap and bulk material.
  • Timber grapple for logs and timber.
  • Auger for tree-planting holes, utility poles, foundation piles and soil sampling.

Certification

The SQ3.2Z series holds a CE certificate of conformity under the EU Machinery Directive 2006/42/EC.

  • Capacity class

    3.2 t

    Max lifting moment 6.8 t·m

  • Knuckle boom sections

    4

    1 main boom + 3 hydraulic booms

  • Hydraulic flow

    25 L/min

    25 MPa · 14 kW recommended

Choosing the right model

Need more than 3.2 t? The next class up is the SQ4ZA4 at 4 t. For lighter loads, the SQ2ZA4 at 2 t is the class below.

Before ordering, check that the truck's power take-off can deliver 25 L/min at 25 MPa. We recommend 14 kW of hydraulic power. Its self weight of 1450 kg adds to the load on the truck, so allow for it in the payload.

Knuckle Boom Truck Mounted Crane

Product technical advantages

  • High-strength welded structure

    High-strength welded structure

    Welded high-strength plate with a hexagonal boom section.

  • Box-type outriggers

    Box-type outriggers

    Box outriggers above 6.3 t protect the cylinders.

  • Optional attachments

    Optional attachments

    Winch, auger, basket or grapple on request.

  • Operation modes

    Operation modes

    Manual levers, aerial seat or wireless remote.

  • Dual four-bar linkage

    Dual four-bar linkage

    Reverse-angle reach for tight jobs.

  • Dedicated torque limiter Load moment limiter on every crane, safety certified.
  • Large-span outriggers Wide fixed outriggers, manual flip optional.

Manufacturing & delivery

From our workshop to your port

  1. Assembly 01

    Assembly

    Slewing base, column and booms are assembled by hand in our Xuzhou workshop.

  2. Load test 02

    Load test

    The crane lifts test weights through its working range before release.

  3. Final check 03

    Final check

    Finished cranes are inspected and lined up for dispatch.

  4. Packing 04

    Packing

    Wrapped in film and strapped to protect paint and hydraulics in transit.

  5. Container loading 05

    Container loading

    Loaded into containers at the factory and shipped to your port.

Shipping & warranty

Shipping, warranty and documents

Shipping

Lead time and container loading are confirmed with your quotation.

Warranty and parts

12 months

Send the model, serial number and a photo or video of the issue; our team guides the repair and ships the parts.

Order from 1 unit

Documents

FAQ

Questions about the SQ3.2ZA4

About the SQ3.2ZA4

What warranty and minimum order apply to the SQ3.2ZA4?

The SQ3.2ZA4 carries a 12-month warranty, and you can order from 1 unit.

Can the SQ3.2ZA4 lift 3.2 tons at full reach?

No. It lifts 3,200 kg at 2.1 m, and the capacity falls with radius to 520 kg at 9.4 m with the boom horizontal. Check the load chart on this page at your working radius.

How high can the SQ3.2ZA4 reach?

With the boom raised, the tip reaches about 11.3 m above the crane base, and the horizontal reach is 9.4 m. Capacity at height still follows the radius on the load chart.

How much space does the SQ3.2ZA4 need on the truck?

It needs 850 mm of installation space behind the cab and folds to 2,450 mm wide and 2,040 mm high. The outriggers extend from 2,250 mm to 3,513 mm, and the crane weighs 1,450 kg. Send us your truck model and wheelbase so we can confirm the fit.

What hydraulic power does the SQ3.2ZA4 need?

25 L/min at 25 MPa, about 14 kW, taken from the truck's power take-off, with a 60 L oil tank on the crane.

Not answered here?

Send us your question and our team replies with answers for your site.

+86 158 5249 9415

Ordering and service

Which configuration should we choose for this model?

Send the working conditions, destination and site access details to BOB-LIFT. The engineering team will confirm a practical configuration before quotation.

Can the crane be customized for our working conditions?

BOB-LIFT can adjust configuration around lifting radius, site access, operation scenario and destination requirements.

What is the typical delivery time?

Lead time depends on the configuration, order quantity and destination. We confirm it in writing with your quotation.

What export documents are provided?

Each order ships with a commercial invoice, packing list and bill of lading, plus the product documents required for the confirmed order.

Do you provide installation and operation training?

We can mount the crane on your truck before shipping. For installation on site, our team provides installation guidance and remote technical support, and our Service & Operation page has short videos on checks before and during lifting.

What after-sales support is available?

Cranes carry a 12-month warranty. Send the model, serial number and a photo or video of the issue; our team guides the repair and ships the parts.

Guides and news

Read before you buy

All news

Need a crane matched to your site and lifting task?

Send your working radius, load requirement, site access, destination country, and delivery schedule. BOB-LIFT will help match a practical configuration.

Contact Engineer

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