• Jiangsu OUCO Heavy Industry and Technology Co.,Ltd
    Nice crane, truly quality products, very helpful.
  • Jiangsu OUCO Heavy Industry and Technology Co.,Ltd
    Richard Rawlings
    Very good service! When order from Natalie l have no worry. She is very helpful and always has a solution. Thank you. Looking forward to business with you again, Natalie.
  • Jiangsu OUCO Heavy Industry and Technology Co.,Ltd
    Sam onjgs
    I am continuously looking online for Multifunctional cranes that can assist me. Thanks!
Contact Person : Natalie Liu
Phone Number : 86-18800548228
Whatsapp : +8618800548228

2 Level Sea State 20KN Crane Marine For Boat A Frame

Place of Origin Jiangsu. China
Brand Name OUCO
Certification ABS/CCS/BV/ISO9001
Model Number OUCO-20KN-AF
Minimum Order Quantity 1 set
Price negotiation
Packaging Details Shipping Container/Wood Crate/nude
Delivery Time 45working days
Payment Terms L/C, T/T
Supply Ability 20 sets per year

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

Product Details
Product Name 20KN Marine A-Frame Crane For Boat Based On 2 Level Sea Station SWL 20KN
Outboard Maximum Load 25KN Width 3.8m
Max.outboard Angle 54° Max.inboard Angle 29.5°
Winch Capacity 50m Broken Load Of Wire Rope >80kn
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20KN Marine Deck Crane


2 Level Sea State Marine Crane


50m Winch Marine Deck Crane

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Product Description

20KN Marine A-Frame Crane For Boat Based on 2 Level Sea State

Product description


Special work ship (such as Marine survey ship, rescue ship, etc.) in the deck stern operation, need to release detection instrument (such as AUV) to work in the sea or recover from the sea water to complete the work of the instrument, generally through A ship installed in the deck stern can swing back and forth A frame device to achieve.


Rack device of such A frame back and forth, filed instruments can easily from the deck, can also smooth recovery instruments from sea level, in order to achieve the instrument from the deck to the release of the surface process, the instrument is boosted by A derrick left deck, need through A derrick ontology across stern deck bulwark (or rail) to achieve safe release distance can be released to the water, This requirement is such that the height of the A-frame should not fall below A certain limit value. In the design of a salvage vessel, this limit is up to 10.8 m. This kind of high A frame has A more adverse effect on the ship's center of gravity. Second, the arrangement of stern deck needs to occupy a larger space; The third is to produce a large side wind area, the ship stability has an adverse impact.


Therefore, A kind of A-frame device which can not only meet the requirements of the height limit, but also eliminate the adverse effect on the ship as far as possible is needed to ensure the smooth realization of the engineering operation.




Main technical parameters:
1. Safe working load: 20KN
2. Outboard maximum load: 25KN
3. Maximum height from deck to lower pulley: 4.1m
4. Width: 3.8m
5. Maximum outboard Angle: 54°
6. Maximum inboard Angle: 29.5°
7. One working time: ~90S(need hydraulic oil flow≥ 25L/Min )
8. Diameter of wire rope: 10MM
9. Winch capacity: 50M
10. Winch workload: innermost layer 2T@20M/Min
outermost 1.5 T @ 25 m/Min (need hydraulic oil flow ≥ 35 L/Min)
11. Broken load of wire rope: 80KN



Brand                                                             OUCO                                                                     
Spare parts 1 set ( If needed, more spare parts are available to be provided according to customers' requirements )
Warranty 1 year( If needed, warranty time is available to be extended according to customers' requirements )




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To better ensure the safety of your goods, professional, environmentally friendly, convenient and efficient packaging services will be provided.
Standard product : 1month
Customized product: 2 months
Certified products: 3-4 months




1. Q: What's the working radius of your crane?
A: From 1m to 100m, we can also design and manufacture cranes according to your requirements.

2. Q: Which crane type should I choose?
A: We have foldable boom, knuckle boom, telescopic boom, stiff boom, etc.

3. Q: Is this crane explosion-proof?
A: Sure, we can equip any extra function based on your requirement.

4. Q: Does your crane have safety devices?
A: Of course, we have all cut off limits and alarms for safety reasons.

5. Q: How can I install the crane to my vessel?
A: We can send our service engineers to the vessel site for guiding or ship the crane in whole pieces.



For more details, please feel free to contact us.


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