Its main function is to lift and load heavy objects. The lifting arm can be freely telescoped through the telescopic mechanism, thus enabling flexible operation within different working distances and height ranges.
CRANE DESIGN:
All our cranes are designed taking into account the special conditions of marine application: harsh environment, dynamic load conditions, excessive side loads and stresses exposed to the crane during operation.
The design is based on the use of mainly high tensile steel material. The design is focused on protecting the crane against overloads by absorbing additional forces through its special boom construction. The design offers extremely high resistance against overloads and combines perfectly high elasticity with
rigidity, thereby reducing the risk of accidents.
Reinforcements and double plates are installed to create smooth transitions between elastic and rigid points. The structures are designed to prevent stress concentration points.
As the crane is designed to operate during the relevant movements of a vessel and / or load, the design is focused on a concept of elasticity.
BOOM TYPE AND APPLICATION:
A marine deck crane of a telescopic boom type with 2 hydraulic extensions booms. The crane is well suited for all general purpose applications in a marine harsh environment.
| Crane Data | ||
| Dynamic moment on base | 4.600 | kNm (dynamic factor 1.25 |
| Sea state | Harbour conditions | Calm Sea (SWH=0.6mtr) |
| Slewing torque | 500 | kNm (List/Trim = 5º/2º) |
| Crane weight | ~22.000 | Kg (crane + winch) |
| Oil flow, Q, recommended | 250 | l/min |
| Working pressure required | 300 | bar |
| Oil tank capacity recommended | 1.000 | Ltr (later ) |
| Slewing sector | 360° | Unlimited, |
| Slew time | 0.6 | Rpm @ Q l/min |
| No. ofslewing gear | 2 | - |
| Luffing time | 75 | sec (average in/out/) |
| Extension time | 75 | sec (average in/out) |
| E-power supply, required: | 24V / 50Hz | Stabilized power supply - 5A |
Note: The parameters of this table are conventional configurations, and can be redesigned according to the actual working conditions of users.
load curve
CRANE SAFETY DEVICES:
The necessary components and safety devices are installed in order to operate the crane for its intended purpose and safe operation, the crane's safety system comprises of the following:
- All main hydraulic circuits are protected from over-pressure by relief valves set to values corresponding to the crane capacities.
- A main over-pressure valve to ensure the safety of the entire hydraulic system .
- Slewing machinery: a load holding valve that will freeze the motion on the slewing motor in case of hydraulic pressure drop and a failsafe multi-disc brake.
- All hydraulic cylinders are provided with hydro piloted block load holding valve that will freeze the motion in case of hydraulic pressure drop.
- Every lever of operation is spring loaded and returns automatically to zero position (deadman's- handle) once force is no longer applied to the lever.
- A hydraulic overload (limiting moment) device is fitted to ensure that all crane functions stop in the case of winch overload. When the crane is stopped, the only allowable motion is the movement of lowering the load, all other movements are blocked.
Important:
It is important to know the intended application of your marine crane requirement. Below, you will find a general list of topics that we will discuss to accurately manufacture a marine crane to your specifications.
* What are you planning to lift with your marine crane?
* What is your desired load?
* What is your desired reach?
* Are you interested in which kind of marine cranes?
* What are your environmental conditions?
* What kind of controls would you like?
* What is your drive system preference, electric hydraulic, diesel hydraulic, air pressure, or existing power system?
* What classification does your marine crane require? ABS, Bureau Veritas, Lloyd's?
We will choose standard packaging and transportation methods according to different products and components, and can also choose customized solutions according to customer needs.
Collaboration and taking photos
Friendly partnerships with foreign customers a delightful experience!
FAQ:
Q1: What's the information should I provide when inquiry?
A: Thanks for your question. The more information you provide, the more accurate solution we can prepare for you! The information such as the lift capacity, span, lift height, power source or other specials you give us will be more appreciated.
Q2: Is your products customized?
A: Yes, because of the different working condition, all our products are customized depending on detail requirement! So if you give us more information about the lift capacity, span, lift height, power source and other specials, we will give you a very quick quote!
Q3: How can we install the crane?
A: Our senior engineer can be your side to provide the installation guide service and training.
Q4: Can you provide the serious lifting tools?
A: Sure, we can provide any lift tools such as lift sling belt, lift clamp, grab, magnet or other specials as your requirement!
Q5: How about your payment terms?
A: we accept T/T and L/C at sight.
