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Knuckle Boom Truck Mounted Cranes

See all 12 Ton Cranes

12 Ton Knuckle Boom Truck Mounted Crane

Model SQ12ZA6JSQ12Z Series

Choose your configuration

3 configurations in this series

Boom sections

1 main boomStandard

Compared with SQ12ZA6: With winch (optional)

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

Max lifting capacity
12,000kg
Max lifting moment
27t·m
Max reach
14.5m
Lifting height
≈ 16.5m
Self weight
—
12 Ton Knuckle Boom Truck Mounted Crane

Engineering data

Technical Specifications

SQ12ZA6J

Model code explained

SQ
BOB-LIFT crane
12
12 t capacity class
Z
Knuckle boom
A6
1 main boom + 5 hydraulic booms

Choose your configuration

Model Configuration Max reachLifting heightSelf weight
SQ12ZA4 A4 · No winch 10.15 m ≈ 12.5 m 4,480 kg
SQ12ZA4J A4 · With winch 10.15 m ≈ 12.5 m —
SQ12ZA5 A5 · No winch 12.2 m ≈ 14.5 m 4,600 kg
SQ12ZA5J A5 · With winch 12.2 m ≈ 14.5 m —
SQ12ZA6 A6 · No winch 14.5 m ≈ 16.5 m 4,800 kg
SQ12ZA6J A6 · With winch 14.5 m ≈ 16.5 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
12,000kg
Max Lifting Moment
27t·m
Rotation Angle
360°
Max Working Radius
14.5m
Max Lifting Height
≈ 16.5 m
Max Boom Angle
75°

Hydraulics and power

Recommended Power
30kW
Hydraulic System Flow
55L/min
Hydraulic System Pressure
28MPa
Oil Tank Capacity
160 L

Machine

Self Weight
—
Installation Space
1,400mm
Outrigger Span
2316–5706 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

SQ12ZA6 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: 12,000 kg at 2.25 m, 1,000 kg at 14.5 m.
Lifts (kg) 12,000 5,450 3,500 2,500 1,850 1,400 1,000
Reach (m) 2.25 4.7 6.4 8.19 10.1 12.2 14.5

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

Product details · SQ12ZA6J

12 Ton Knuckle Boom Truck Mounted Crane

12 t knuckle boom truck mounted crane

More videos2

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 SQ12ZA6 is one of 18 models in our Knuckle Boom Truck Mounted Cranes range, which runs from 1.6 t to 50 t.

The SQ12ZA6 is a 12 t knuckle boom truck-mounted crane with a maximum lifting moment of 27 t·m. It runs on a recommended 30 kW power supply with 55 L/min of hydraulic flow at 28 MPa, weighs 4800 kg and has a rated slewing angle of 360°.

Buyers often search for this machine as a 12 ton truck crane or crane truck. The SQ12ZA6 is a loader crane fitted behind the cab, so the truck keeps its cargo body and carries the goods it lifts. That makes it different from a mobile truck crane, which has its own carrier and no cargo deck. We ship the SQ12ZA6 on its own for mounting on your truck; we have fitted our cranes to Dongfeng, Isuzu and Sinotruk trucks.

Why Purchase this Crane?

These impressive machines have become essential in industries, including construction, forestry, shipping and logistics.

The 12 ton knuckle boom crane is highly favored by professionals and one of its standout features is the articulating arm, which consists of sections resembling a knuckle. This unique design provides flexibility and reach, making it perfect for navigating tight spaces or reaching over obstacles.

In addition, its small size and flexibility are ideal for construction sites in confined spaces with limited room. The crane's precise controls allow operators to perform lifts effortlessly minimizing the chances of accidents or harm to loads. The crane has advanced safety features, like load monitoring systems and stability control mechanisms. These technologies enhance safety during operations, providing protection for both workers and equipment.

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 SQ12Z series holds a CE certificate of conformity under the EU Machinery Directive 2006/42/EC.

  • Capacity class

    12 t

    Max lifting moment 27 t·m

  • Knuckle boom sections

    6

    1 main boom + 5 hydraulic booms

  • Hydraulic flow

    55 L/min

    28 MPa · 30 kW recommended

Choosing the right model

Need more than 12 t? The next class up is the SQZ330 at 16 t. For lighter loads, the SQ10ZA6 at 10 t is the class below.

Before ordering, check that the truck's power take-off can deliver 55 L/min at 28 MPa. We recommend 30 kW of hydraulic power. Its self weight of 4800 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 SQ12ZA6

About the SQ12ZA6

What hydraulic supply does the SQ12ZA6 need?

55 L/min at 28 MPa. We recommend 30 kW of hydraulic power. Send us the truck's power take-off data and we confirm the match when we quote.

What warranty and minimum order apply to the SQ12ZA6?

The SQ12ZA6 carries a 12-month warranty, and you can order from 1 unit.

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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