Knuckle Boom Marine Cranes

SQZ430T20 Ton Knuckle Boom Marine Crane

Max Lifting Capacity: 20000kg
Max Lifting Moment: 42.3t·m
Recommended Power: 45kW
Hydraulic System Flow: 63L/min

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Or message us +86 158 5249 9415 info@boblift.com

12-month warranty
Order from 1 unit
Shipping & warranty

Confirm your configuration and current availability with our team.

Engineering data

SQZ430T Specifications

Former model: SQ20ZA7TJ+1

Lifting

Max Lifting Capacity: 20000kg
Max Lifting Moment: 42.3t·m
Rotation Angle: 360° continuous

Hydraulics and power

Recommended Power: 45kW
Hydraulic System Flow: 63L/min
Hydraulic System Pressure: 33MPa
Oil Tank Capacity: 240 L

Machine

Self Weight: 4900kg

Reach and outriggers

Max. radius: 16.6m
Max. height: ≈ 19 m

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

Compare all Knuckle Boom Marine Cranes

Dimensions 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: 20,000 kg at 2 m, 1,910 kg at 16.6 m.

Lifts (kg)	20,000	8,700	6,280	4,550	3,430	2,730	2,240	1,910
Reach (m)	2	4.4	5.9	7.8	9.9	12	14.3	16.6

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

Product details · SQZ430T

20 Ton Knuckle Boom Marine Crane

Why Buy the 20 Ton Knuckle Boom Marine Crane?

BOB-LIFT’s 20 Ton Knuckle Boom Marine Crane is a great machine that can help buyers move or load their heavy cargo. The crane is designed with advanced features through advanced analysis making it efficient and durable.

The 20 Ton Knuckle Boom Marine Crane has a compact structure that is great for intensive tasks. The crane is lightweight and has a great load ratio, making it efficient during installation and use. It also has a rack cylinder with a folding design that makes it more compact, provides better use of space, and has a low center of gravity for better maneuverability and stability.

BOB-LIFT created the 20 Ton Knuckle Boom Marine Crane with an innovative design that makes it easy to adjust the boom to various parameters that meet the customer's needs. Additionally, buyers get great customer service including quick replies to queries and deliveries.

Knuckle Boom Marine Crane

Product technical advantages

High-strength steel structure

Compact, light and strong steel structure.
Custom installation

Pedestal mounting tailored to your deck.
Optional attachments

Winch, drill pipe, basket or grapple.
Operation modes

Manual levers, overhead seat or wireless remote.
Dual four-bar linkage

Reverse-angle reach for flexible work.

Dedicated torque limiter Load moment limiter, safety certified.
Marine anti-rust treatment Multi-layer anti-rust process for sea duty.

Manufacturing & delivery

From our workshop to your port

01

Assembly

Slewing base, column and booms are assembled by hand in our Xuzhou workshop.
02

Marine test stand

Mounted on a deck-style stand, the crane runs every boom and slewing motion before release.
03

Final check

Finished cranes are inspected and lined up for dispatch.
04

Packing

Wrapped in film and strapped to protect paint and hydraulics in transit.
05

Container loading

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

Shipping & warranty

Shipping, warranty and documents

How the SQZ430T reaches you, and what happens after it arrives.

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

Marine Cranes Brochure

PDF · 12 pages · 8.3 MB

Download PDF
Dimensions and load chart
SQZ430T Specifications

Customer Feedback

Photos and videos from customers

Kazakhstan SQ20ZA4T · 6 videos

FAQ