The SQZ430T is a 20 ton knuckle boom marine crane. It lifts 20,000 kg at 2.0 m, 3,430 kg at 9.9 m and 1,910 kg at its full 16.6 m reach, with a 42.3 t·m maximum lifting moment and 360° slewing. It weighs 4,900 kg.
Where the 20 ton SQZ430T fits
The SQZ430T is rated to 20,000 kg and lifts 1,910 kg at 16.6 m, the highest full-reach load among our knuckle boom marine cranes up to 20 t. It is built for barges, cargo vessels, ports and quays that move heavy deck cargo every day. It weighs 4,900 kg and needs 63 L/min at 33 MPa from about 45 kW of power.
Need a longer, straight boom instead? Compare the 20 ton telescopic boom marine crane (SQ20SA5T).
We size a marine crane by the load and the radius you need, not by vessel length. Send us the heaviest load, the furthest point it must reach and a deck drawing, and we check them against the SQZ430T load chart and the deck space it needs when folded.
Deck mounting dimensions
These figures come from the SQZ430T dimension drawing. Your shipyard or naval architect designs the pedestal and the deck reinforcement for the crane’s 4,900 kg self weight and its 42.3 t·m maximum lifting moment.
| Base plate |
Ø1,400 mm |
| Mounting bolt holes |
30 × Ø33 mm |
| Bolt pattern |
PCD Ø1,290 mm |
| Centre hole in the base plate |
Ø700 mm |
| Folded size (L × W × H) |
2,550 × 1,453 × 2,350 mm |
| Self weight |
4,900 kg |
| Max. lifting moment |
42.3 t·m |
We can adapt the mounting to your vessel’s deck, for example by changing the pedestal height. Download the SQZ430T dimension drawing (PDF)
Corrosion protection for sea duty
The T in SQZ430T marks the marine version, which receives a multi-layer anti-rust treatment for salt air and spray. How long a crane lasts in a harbour still depends on routine care: rinse it with fresh water after salt-water work, grease the slewing bearing and pins on schedule, and check hoses and fittings for corrosion.
From our customers
A customer in Kazakhstan has sent videos of the earlier SQ20ZA4T configuration at work. See their photos under Customer feedback
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