4t30m electric hydraulic telescopic boom marine crane for offshore service vessel
The telescopic box boom marine crane is supplied with a pedestal which should be welded onto the ship`s steel structure or counter foundation. The pedestal consist of a rolled steel pipe and a flange on which the crane housing with its slewing ring is placed. The telescopic boom crane is designed as an electro-hydraulic driven telescopic boom crane, with integrated electro-hydraulic power package or independent electro-hydraulic power package, delivered as a complete unit ready for installation to foundation. The crane is equipped with hydraulic powered winch, hydraulic powered luffing, hydraulic powered extension and hydraulic powered slewing system.
Technical spifieccation
| 1 | SWL | 4t@30m |
| 2 | Max working radius | 30m |
| 3 | Min working radius | 3m |
| 4 | Hosting speed | 0~12m/min |
| 5 | Slewing speed | 0.6r/min |
| 6 | Slewing angle | 360° free |
| 7 | Luffing time | 75s |
| 8 | Hook travel | 30m |
| 9 | DFT of painting | 320um |
| 10 | Extension time | 100s |
| 11 | Working condition | |
| Heel | ≤ 5° | |
| Trim | ≤ 2° | |
| 12 | Electric motor | |
| Power | 90Kw | |
| Speed | 1480r/min | |
| Power source | 440V 50Hz, | |
| Protect class | F | |
| Working type | S1 | |
| 13 | Flow | 100L/min |
| 14 | Design temperature | -10°~40° |
| 15 | Dead weight | ~26000 kg |
Load chart

General drawing

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