| Customization: | Available |
|---|---|
| After-sales Service: | Lifetime Warranty |
| Operation Form: | Cabin |
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Hydraulic Knuckle & Telescopic Boom Offshore Crane BV Class Approved
1. General Description
This hydraulic slewing crane is suitable for hoisting weight and others cargos intended for ships or rig, the design according to API 2C 7th and BS EN 13852-1 and BS EN 13852-2,certified by Class BV.
2. The design condition of electro-hydraulic crane:
Application area: (standard sea state)
Crane installation area: (Zone 2)
Working temperature: -10ºC~+45ºC
Min. design temperature: -10ºC
Relative humility: 95%
Max. working wind speed 20m/s
Suspend Max. static wind speed: 55m/s
heel/trim(in working) : ±5°/2°
3. Crane main technical parameter
Name: Hydraulic Knuckle & Telescopic Boom offshore Crane
Crane model: Box Type Boom, Luffing/ Foldling /Extending/Retracting with
Cylinder.
Drive model: Electro hydraulic
Hoisting model Single hook
|
Rated hoisting load |
2t@8m(Hsig0.6m) |
1.3t@10m(Hsig0.6m) |
|
1.5t@8m(Hsig1.2m) |
0.8t@10m(Hsig1.2m) |
|
|
Max. working radius |
Rmax=10m |
|
|
Min. working radius |
Rmin=2m |
|
|
Hoisting speed( within SWL)
Rotating speed |
0~15m/min
0~0.5r/min |
|
|
Luffing time |
~60s |
|
|
Hoisting height |
30m |
Rotating scope ≤360°(with slewing limited) Power ()
Pack Motor parameter
Model Y160M-4-H
Rated power 11 KW
Work duty S6-40%
Start-up Direct start Voltage
and frequency 440V/60HZ/3PH Protective class IP55
Insulation class F
Temperature class F
Motor speed ~1780r/min
1 set (s)
Motor number
4. Properties
All actions, whose speed can be switched from zero to max., can be carried out at
rated load; but lower speed moderately when action combined. ,.,;.
4.1 Construction brief introduction
This hydraulic rotating crane is mainly composed of pedestal, tower body, jib and operation platform.
4.1.1 Pedestal
The base is a steel structure cylinder which is welded to the ship's base.
4.1.2 Tower body
Two lifting eye located at head of tower body, is used to connect jib support. Tower body equipped with main hydraulic components, wheel house located outer sides. All crane actions controlled and switched by electro hydraulic proportional multi-way valves. ,.,.
4.1.3 Jib
Jib is box type in construction and plate welded closed model, whose properties are good looking, light weight, strong support without inner maintenance, and is suitable for working at sea.
4.1.4 Slewing ring
Provide required certificate, which shows slewing material and manufacture are satisfied with relevant technical requirements. .
Lip edge sealing parts prevent from humility and sundries entering. .
Lubrication parts will lubricate slewing ring.
4.1.5 Operation gear
Operation gear is composed of hoisting gear, luffing cylinder and rotating gear.
Hoisting gear is composed of hydraulic motor, reducer, drum, brake, wire rope and hook assembly . ,,,
Luffing cylinder(knuckle boom cylinder, telescopic boom cylinder) is used to make crane luffing. The outlet port of cylinder equipped with balance valve, which prevent jib lowering. (,).,
Rotating gear with pinion, reducer and hydraulic motor, which carry out clockwise and counterclockwise motion. Reducer is belt brake in type. ,,..
4.1.6 Hydraulic system
The hydraulic system is open in type, oil from power pack to manule hydraulic proportional valve, After direction changes, the pressure oil transfers to relevant oil circuit, then drive operation gear. ,,,,.
Oil cooled system: This system is wind cooled in type. :
All pipes, soft pipes and components with permanent sign should be marked and in compliance with hydraulic principle drawing. ,,.
Hydraulic components (including all kinds of valves, pump, hydraulic motor and sealing parts) are from international famous companies. (,,,).
4.1.7 Electric system
control box (IP56)located in the tower body. Electric control box with current gauge, start-up & stop button , power supply indication lamps and related alarm lamps. (IP56).,,
Main power supply: 3PH 380V 50HZ ,which mainly used to provide power. :3PH 380V 50HZ,.
Safe Load Indicator or Rated Capacity Indicator for all configurations. .
Hoist Limit Switch (Anti-Two-Block).
Boom Upper Limit Switch.
Boom Lower Limit Switch.
Boom Swing Limit Switch (if collision with other Crane or Structure is possible).
AOPS MOPS
4.1.8 Steel construction and painting
Mainly supporting parts are high strength plate.
All welding seams are according to WPS weld rules, mainly welding seam should be NDT. WPS,
The plate surface should be sand blasted to Sa2.5 and accorded with ISO standard. Sa2.5,ISO
4.1.9 Safety system
1. Hoisting and rotating gears equipped with electromagnetic discharging valve, all motions will be suspended in case power and pressure failure. Luffing gear with single way valve will suspended and ensure person safety when power failure. Each hydraulic return circuit equips pressure limiter, which can balance correct pressure to each gear.
2. Main control valve and main oil circuit equip with safety valve to limit system pressure so that all motions with overload protect. ,,
Hook up limiter-There are hook up limiter at hoisting gear, which can stop automatically. --,
3. Operation platform equips with system emergency stop device, and equips with hand pump to emergency lowering. ,
4. Motor equips with over-current and over-heat protector.
5. Others
Attachment 1 (spare parts& tool list)
|
No. |
NAME |
Qty. |
Remarks |
|
1 |
Pressure measure device |
1PC |
|
|
2 |
Filter |
1PC |
|
|
3 |
Fuse |
3PCS |
|
|
4 |
Indicating bulb |
3PCS |
Please reconfirm that the offered crane meets the below criteria and as per the attachment -
- Crane complying with API 2C or BE EN 13852 -2 standard
- Crane will be approved by class BV for Marine offshore crane. BV
- Crane will comply with Zone 2 OPERATING AREA
- Load as offered earlier- 1.3 T @ 10M 2 T @ 8M.
Note:
All electrical components/hydraulic are euro ()
Hydraulic Fittings are parker/eaton (/)
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