At OUCO, our passion lies in creating custom marine crane solutions that exceed our customers’ expectations.
Simply message us, and we will supply you with a tailored solution.
Marine Cranes Manufacturer
When designing your marine cranes, OUCO takes everything into consideration. This includes your application, environmental conditions, maximum load weight, the type of loading, your local trade regulations, and more.
We offer many marine crane types, including telescopic boom, stiff boom, knuckle boom, folding boom, deck cranes, offshore cranes, etc.
Our marine cranes have hydraulic and electric parts, providing you with optimum productivity. The technology is fail-safe and has additional electronic aids to counteract external forces like wind and waves.
We are dedicated to working closely with you, understanding your unique needs, and delivering exceptional results at highly competitive prices.
OUCO Marine Crane
Our Offshore Cranes are specifically engineered to withstand the demanding conditions of harsh sea environments. mainly installed on offshore platforms and cargo ships, ensuring optimal performance even in sea states 4 to 6.
Telescopic cranes provide extended reach for various lifting applications, not only lighter but also have more lifting points. Outreach up to 50m. Electro-hydraulic drive, 0-75° luffing, 360° slewing.
The Stiff Boom Crane stands out as a cost-effective solution, offering a range of advantages like simple and robust construction, easy maintenance, long service life, and short lead time.
Marine Knuckle Boom Crane is a special crane used for transportation operations in the marine environment. It has the advantages of reliable performance, precise control, high safety, and saving space.
SWL from 1 Ton to 15 Ton. The Foldable Knuckle Boom Crane is used for general cargo handling and other lifting operations at sea. This special design allows the boom to bend and fold completely, taking up less deck space.
Marine A Frame Crane is used for operating in the sea or releasing and recovering instruments from seawater, usually installed on the deck stern of maritime survey vessels and maritime rescue vessels to facilitate the completion of scientific research work at sea.
Yacht Crane is a service-type small crane, mostly used for yachts and dinghies, which combines the benefits of lightweight, flexibility, beauty, and convenience. We can also provide heavy-duty yacht cranes as required.
The Marine Davit Crane is a stand-alone deck-mounted hanger commonly used for manned rescue boats, small construction projects, conveying groceries, etc. It works fast, making it suitable for a variety of mobile work at sea.
Small Marine Crane is suitable for yachts, fishing boats, cargo ships and other small ships. Installed on the deck, it is simple in design and complete in function, lifting capacity from 0.5 to 10 tonnes.
Why Choose OUCO Marine Cranes?
OUCO is one of the best marine crane manufacturers in China. We have over 30 patents on marine cranes and other equipment, nearly 40 years of experience, and professional quality control teams.
Our configuration is based on products from leading brands such as ABB, Danfoss, Parker, ATOS, Rexroth, etc.
Finally, our factory is certified by all major classification societies, and we can showcase nearly a hundred projects successfully completed worldwide for you!
Steel Plates We Use
The raw materials of marine cranes are steel plates certified by the classification society, we will choose the appropriate plate according to your needs:
- Standard Plate: Q345B (Q355), HG70, DH36, EH36
- Cold Resistant: Q355D, Q355E, BS650E
- Corrosion Resistant: AH36, BH36
- High Strength: Q690, S690, HG70(BS650), WELDOX 700
- Abrasion Resistant: NM400, Hardox 400
We use only the finest raw materials to manufacture our plates, which are then expertly cut to high verticality using high-powered CNC laser cutting machines.
Our cutting process ensures that every plate is cut to perfection, with small, precise cuts and smooth, uniform kerfs. Ensure that they can eventually be assembled seamlessly and securely.
Welding Quality Control
At OUCO, we take pride in our commitment to quality and aesthetics. Our professional welder team and QA&QC process ensure that our products meet the highest standards of excellence.
- All members of our welding team are classification society certified welders
- Adoption of the beautiful and neat fish-scale welding technology
- Thorough grinding of dents and welds to meet our quality standards
- Radiographic or ultrasonic testing, external flaws, internal flaws or non-destructive testing of welds
- Rigorously checked by professional testing personnel or classification society surveyors
Paint and Coating Standards
We value the surface treatment of our cranes, ensuring exceptional quality by utilizing Jotun paints and coatings. These protective and tacky coatings are applied after meticulous sandblasting, which enhances the adhesion of the paint. Additionally, we meticulously check the paint thickness. Here are the specifications we adhere to:
- Epoxy Zinc-Rich Primer with a minimum thickness of 60 μm.
- Smooth intermediate coats with a thickness of up to 180 μm.
- Topcoat with a high hardness, ensuring a minimum thickness of 60 μm.
The surface of our marine cranes remains unscathed, even when in contact with sharp objects. Furthermore, our coatings are free from bubbles, pitting, and bottom leakage, meeting C5M / CX standards for durability up to 15+ years.
Product Showcase Video
- Latest Project
- Latest Project Drawing
- Certificate
- Production Process
- Case
Two Customized Knuckle Cranes for Icebreaker Shipped to Russia!
OUCO 2.5T14M crane supports German customers’ efficient drilling operations!
2T5M Small Hose Marine Crane Delivered to Malaysian Navy!Related Product
Marine cranes are lifting equipment specifically designed for use in harsh marine environments, such as ships, offshore platforms, and piers. They are typically installed on the main deck, stern, or side deck of a vessel to simplify heavy lifting and improve onboard cargo handling efficiency.
Marine cranes are essential for ship-to-shore cargo handling, supply at sea, personnel transportation, moving heavy equipment, dropping or recycling materials in the ocean, and participating in offshore construction and maintenance work.
To meet the challenges of the marine environment, marine cranes must be specially designed to withstand corrosive seawater, strong winds, and other harsh conditions. Moreover, they must comply with specific safety regulations and classification society approvals for use in marine environments.
Usually, you can quickly classify them according to the different boom of marine cranes, the following are the various kinds of marine cranes suitable for offshore and marine applications:
Gantry Marine Cranes – The biggest type of crane. These cranes are several stories tall. It is utilized in loading/offloading shipping operations. Gantry cranes can effectively transfer cargo on and off ships dockside. It has a design which is the operator’s cabin is on the top end of the crane. It is suspended from the trolley.
Telescopic boom crane – It can be hydraulic extended. This crane retracted without a knuckle function.
Stiff boom crane – Specifically made for general cargo handling. It can be utilized on offshore units and ships.
Knuckle boom crane – Used on fixed platforms. It is found on vessels with a large deck area. This has less joints thus easy to maintain.
Foldable telescopic boom crane – It needs minimum deck space. This crane ensures constant torque moment. It reduces the pendulum effect’ of the load.
Specialty crane – Refers to a special type of crane that is used to perform a specific work. For example, military applications, technical support, lifting and rescue, road clearance, etc.
Yes, OUCO manufactures professional explosion-proof hose handling cranes specifically engineered for safe fluid transfer operations at chemical terminals, oil tankers, FPSOs, and offshore drilling platforms.
Our hose cranes manage the connection between shore terminals and vessel manifolds during petroleum and chemical loading/unloading. Designed in strict compliance with GB3811-83, API Spec 2C, and international ATEX / IECEx directives, these cranes deliver reliable performance in extreme hazardous environments.
Key Technical Features & Safety Standards
- Full Explosion-Proof Protection (Ex): All critical electrical components—including motors, electric control cabinets, junction boxes, limit switches, and lighting—feature certified explosion-proof enclosures.
- Hazardous Area Classification: Fully compliant for safe operation in Zone 1 and Zone 2 hazardous gas/vapor atmospheres.
- Hydraulic System & Operation: Equipped with imported high-efficiency hydraulic components, offering 360° continuous slewing, smooth luffing (0°–75°), and precise positioning with compact deck footprint.
- Offshore & Terminal Applications: Custom-engineered for crude oil tankers, chemical carriers, LNG/LPG barges, floating docks, and FPSOs.
Planning a terminal project? Contact our technical team today to receive a custom proposal, explosion-proof certificate details, and a competitive quote for your Hose Handling Crane.
Absolutely, we provide an extensive selection of crane spare parts, ranging from minor electrical components like controllers and contactors to substantial hydraulic units.
It’s important to acknowledge that while we offer a wide range of parts, certain specific accessories might not be available due to the variations among different brands and models.
For the marine cranes within our portfolio, we extend complimentary spare parts replacement and delivery services to guarantee uninterrupted crane performance and effectiveness.
For further insights into our spare parts service, kindly explore our dedicated Spare Parts Page.
The lead time for our marine cranes varies depending on customer requirements and certification needs.
For products with only the factory certificate, the delivery time can be as short as 1-3 months.
However, if customers require CCS or ABS product certification, the delivery time may be extended by 1-2 months. This is because during the production process, surveyors from the classification societies will visit the OUCO factory multiple times to inspect accessories, welding conditions, crane load capacity, and other factors.
Operating cranes in harsh maritime environments exposes equipment to severe environmental and operational risks. To ensure safety and prevent accidents like tipping, structural damage, or load loss, marine cranes require specialized engineering solutions paired with strict adherence to safety protocols for operating in extreme weather conditions.
Key Operational Challenges and Engineering Solutions
- Rough Sea States & Ship Motion: Vessel roll, pitch, and heave induce unstable dynamic forces.
Solution: Integrated Anti-Heeling Systems and Constant Tension (CT) Winches automatically compensate for wave-induced movement. - Dynamic Loading & Tipping Risks: Overloading or high sea states can compromise vessel stability.
Solution: Cranes are equipped with mandatory Moment Limiters (LMI) and pre-tested via simulated sea state tests to verify stability. - Seawater Corrosion & Marine Environment: Salt spray, humidity, and wave impacts degrade structures.
Solution: Multi-layer C5-M marine epoxy paint coatings and chrome-plated stainless steel hydraulic components. - Seabed Suction & Subsea Lifting: Water resistance and suction during subsea recovery increase effective load weight unexpectedly.
Solution: Real-time load sensing displays and automatic overload protection.
7 Essential Safe Operation Rules to Prevent Accidents
While OUCO engineers cranes to withstand designated marine environments, operators must strictly adhere to the following safety protocols:
- Strictly Follow the Load Chart: Never exceed the specified Safe Working Load (SWL) for any given working radius.
- Ensure Level Mounting: The crane pedestal must be structurally sound and mounted horizontally to the vessel deck.
- Maintain Vertical Lifts Only: Do not perform side-pulling or lift when wire ropes are inclined to avoid extreme side-loads.
- Operate Within Allowable Sea States: Check weather forecasts and operate strictly within the designated sea state rating.
- Halt Operations in High Winds: Immediately cease all lifting operations when wind force reaches Beaufort Scale 6 (22–27 knots) or higher.
- Monitor Vessel Heel and Trim: Ensure ship inclination remains within the maximum allowable heel and trim range specified in the manual.
- Perform Pre-Operation Checks: Inspect hydraulic hoses, limit switches, and safety locks before starting any lift.
To help our engineers design the optimal solution and provide an accurate quotation, here are the core technical specifications and safety indicators you need to consider:
- Safe Working Load (SWL): The maximum lifting capacity required for your operations. Capacity varies at different radii, which is defined by the crane’s Load Chart.
- Lifting Moment & Torque Limiter: Calculated as
SWL × Working Radius (Ton·m or kN·m). It indicates the crane’s overall structural strength. To prevent overloading, OUCO equips cranes with digital Moment Limiters (LMI) that show real-time load, radius, and trigger automatic shutoffs during dangerous operations. - Working Radius (Operating Reach): The distance from the crane’s rotation center to the hook. Please provide your required minimum and maximum working coverage.
- Lifting Height & Descending Depth: The vertical distance the hook travels above the deck, as well as below deck/sea level into holds or waters.
- Working Speeds: The operational speeds required for your application, including Hoisting (m/min), Slewing (r/min), Luffing (seconds), and Telescoping.
- Crane Self-Weight & Footprint: Crucial for evaluating deck load limits and installation space on your specific vessel or platform.
Need a customized load chart or quick quote? Simply send us your required SWL and working radius, and the OUCO technical team will design a tailored marine crane solution for you.
Customer Reviews
4.5/5