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Knuckle Boom Truck Mounted Cranes

SQ6.3ZA46.3 Ton Knuckle Boom Truck Mounted Crane SQ6.3ZA4

Previous model No longer in regular production. It can still be built to order.

Current model View BLZ129K4 View SQ6.3ZA5 Compare with the current range

SQ
Truck mounted crane
6.3
6.3 t capacity class
Z
Knuckle boom
A4
1 main boom + 3 hydraulic booms
Max Lifting Capacity
6300kg
Max Lifting Moment
13.2t·m
Recommended Power
22kW
Hydraulic System Flow
40L/min
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Confirm your configuration and current availability with our team.

6.3 Ton Knuckle Boom Truck Mounted Crane SQ6.3ZA4

Engineering data

SQ6.3ZA4 Specifications

Lifting

Max Lifting Capacity
6300kg
Max Lifting Moment
13.2t·m
Rotation Angle
360°

Hydraulics and power

Recommended Power
22kW
Hydraulic System Flow
40L/min
Hydraulic System Pressure
28MPa
Oil Tank Capacity
100 L

Machine

Self Weight
2180kg

Figures from the BOB-LIFT brochure for this range. Confirm the final specification with our team before ordering.

Compare all Knuckle Boom Truck Mounted Cranes

Dimensions and load chart

SQ6.3ZA4 dimension drawing and technical parameters

SQ6.3ZA4 load chart

Select the drawing to view it full size.

Product details · SQ6.3ZA4

6.3 Ton Knuckle Boom Truck Mounted Crane SQ6.3ZA4

6.3 t knuckle boom truck mounted crane

More videos5

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 SQ6.3ZA4 is a 6.3 t knuckle boom truck-mounted crane with a maximum lifting moment of 13.2 t·m. It runs on a recommended 22 kW power supply with 40 L/min of hydraulic flow at 28 MPa, weighs 2180 kg and offers 360° slewing.

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 SQ6.3Z series holds a CE certificate of conformity under the EU Machinery Directive 2006/42/EC.

  • Capacity class

    6.3 t

    Max lifting moment 13.2 t·m

  • Knuckle boom sections

    4

    1 main boom + 3 hydraulic booms

  • Hydraulic flow

    40 L/min

    28 MPa · 22 kW recommended

Choosing the right model

Need more than 6.3 t? The next class up is the SQ8ZA6 at 8 t. For lighter loads, the SQ5ZA4 at 5 t is the class below.

Before ordering, check that the truck's power take-off can deliver 40 L/min at 28 MPa. We recommend 22 kW of hydraulic power. Its self weight of 2180 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 SQ6.3ZA4

About the SQ6.3ZA4

What hydraulic supply does the SQ6.3ZA4 need?

40 L/min at 28 MPa. We recommend 22 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 SQ6.3ZA4?

The SQ6.3ZA4 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?

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

What export documents are provided?

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

Do you provide installation and operation training?

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

What after-sales support is available?

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

Model history

Compare with the current range

Previous models are configurations we no longer build as standard. They can still be built to order.

Model Current model BLZ129K4 6.3 Ton Knuckle Boom Truck Mounted Crane BLZ129K4 Current model SQ6.3ZA5 6.3 Ton Knuckle Boom Truck Mounted Crane Previous model SQ6.3ZA3 6.3 Ton Knuckle Boom Truck Mounted Crane SQ6.3ZA3 Previous model SQ6.3ZA4This model 6.3 Ton Knuckle Boom Truck Mounted Crane SQ6.3ZA4
Capacity 6.3 t 6.3 t 6.3 t 6.3 t
Max lifting moment 12.9 t·m 13.2 t·m 13.2 t·m 13.2 t·m
Self weight 1850 kg 2310 kg 2050 kg 2180 kg
Boom sections – 5 3 4
Recommended Power 22 kW 22 kW 22 kW 22 kW
Hydraulic System Flow 35 L/min 40 L/min 40 L/min 40 L/min
Hydraulic System Pressure 28 MPa 28 MPa 28 MPa 28 MPa
Oil Tank Capacity 87 L 100 L 100 L 100 L
Installation Space 950 mm – – –
Rotation Angle 380° 360° continuous 360° 360°
Max. radius 10.23 m 12.2 m – –
Max. height ≈ 12.5 m ≈ 14.5 m – –
Max. boom angle 75° 75° – –
Outrigger span 2250–5110 mm 2290–5606 mm – –
Built to order View BLZ129K4 View SQ6.3ZA5

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.

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