Product Description

Safety work load 21KN Signal Arm slewing raft davit crane

1. General
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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Ningbo Merce Technology Co., Ltd

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Address: Ningbo, China

Main Product: Trolling Motor, Electric Trolling Motor, Remote Bait Boats , Bait Boats, Head Lamps, Flash Lights

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