Hydraulic Single Arm Slewing Crane Davit for Boat and Raft1
2 year agoProduct Description

The Signal Arm slewing raft davit crane is manufactured and tested under the approval of CCS in compliance with the requirements of 1983,1992,1996,2006 Amendments SOLAS 1974.
The Signal Arm slewing raft davit crane is a single arm slewing type davit and it lowers the boat on the water by the help of its own weight.
The Signal Arm slewing raft davit crane is a hydraulic slewing type davit and accumulator or manual pump driven in case of power failure would slew it.
The boat is lowered by means of remote control, that the crew can release and stop the hand brake of the winch from inside of the boat via wire connection to the brake arm and wire spool on the winch.Alternatively the crew can operate the hand brake on the deck.
The winch drives and eguipped withone-way brake,disctype axial friction.clntch and mannal hoisting crank with safety device.
2. Standard
The inspections and tests of davit appliances are in accordance with the IMO MSC.81(70) and MSC.226(82)
3. Main parameters

Name | Unit | Data | |||
Max. working load | KN | 14 | 21 | 23 | 25 |
Slewing radius | mm | R<5400 | R<4800 | R<5400 | R<5500 |
Max.slewing load/Hoisting load | KN | 14 | |||
Hoisting speed of wire rope | m/min | >18 | |||
Lowering speed of wire rope | m/min | 40-60 | |||
Max.slewing angle | dggree | <330 | |||
Stored power slewing angle | dggree | <110 | |||
Selwing speed instored power driven | r/min | 0.6-0.8 | |||
Slewing speed in electric power driven | r/min | >0.25 | |||
Diameter of wire rope | mm | 16mm | |||
Capacity of drum | m | 30 |
Table-Main Parameters
Type | R(mm) | L(mm) |
14KN | <5400 | 4700 |
21KN | <4800 | 4240 |
23KN | <5400 | 4700 |
25KN | <5500 | 4700 |





4. testing platform

5. Workin shop


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