Shipboard Crane Davit for Marine Operations
The Shipboard Crane Davit is a robust and versatile lifting device designed specifically for marine applications, including the launching and recovery of workboats and rescue boats. This high-performance equipment is engineered to meet the rigorous demands of maritime environments, ensuring safe and efficient operations in various conditions.
Key Parameters for Optimal Performance
- Safe Working Load (SWL): 12.5 tons, providing ample capacity for lifting and handling workboats and rescue boats.
- Hoisting Speed: ≥18 meters per minute, ensuring quick and efficient recovery operations.
- Lowering Speed: Adjustable from 0 to 30 meters per minute, allowing for precise control during launching.
- Drum Capacity: 30 meters of wire rope, accommodating the needs of most marine lifting tasks.
- Luffing Speed: 60 seconds for full luffing range, enhancing operational flexibility.
- Wire Rope Specification: 4Vx39+5FC-1770-32-zinc (anti-rotary), with a Minimum Breaking Load (M.B.L) of 777 kN, ensuring durability and safety.
- Heel/Trim: 200/100, providing stability during lifting operations.
- Main Power Supply: 440 V/60 Hz/3 Phase, suitable for standard marine power systems.
- Pump Station Power: 75 kW, delivering ample hydraulic power for smooth operation.
- Ambient Temperature Range: -20°C to 45°C, ensuring reliable performance in diverse climatic conditions.
Construction and Components for Enhanced Functionality
The Shipboard Crane Davit comprises several key components, each designed for specific functions:
- Lifting Arm: The primary holding structure, enabling the turning of workboats and rescue boats from inboard to outboard positions using the outrigged arm.
- Hoisting Mechanism: A crucial assembly for recovering and launching boats, controlling the lowering and hoisting of the wire rope through a head block.
- Hydraulic Swing Mechanism: Facilitates smooth and controlled swinging of the lifting arm.
- Remote Control Unit: Allows effective control of the lowering height from within the boat, ensuring safety when no operator is present on deck.
- Limit Devices: Security features to prevent overloading of the boat and over-pressure in the hydraulic system.
- Accumulator and Hydraulic System: Ensure reliable and continuous operation, with a full-flow return filter and changeable filter core inserts for easy maintenance.
- Stainless Steel Hydraulic Power Piping: Supplied in SUS304, providing corrosion resistance and longevity.
- Marine-Grade Cylinder: Designed with spherical bearings on axles and a chrome-plated piston rod to prevent rust and ensure safe buffering in extreme positions.
- Manual Pump: For emergency lowering of the load in case of power failure, enhancing safety and reliability.
Certifications and Compliance
The Shipboard Crane Davit is available with certifications from reputable organizations such as CCS, RINA, MED, LR, DNV, and BV, ensuring compliance with international safety and quality standards.
Main Specifications for Comprehensive Understanding
- Load Tipping Moment: 100 tm to 1200 tm, suitable for various lifting requirements.
- Classification: A5 to A8, indicating the operational category and duty cycle.
- Lifting Capacity: 25 tons to 120 tons, accommodating a wide range of boat sizes.
- Power Supply: 380V 50HZ, compatible with standard marine power systems.
- Max. Radius: 40 meters to 80 meters, providing extensive reach for lifting tasks.
- Max. Wheel Load: <250 KN, ensuring stability during operation.
- Lifting Speed: 0 m/min to 30 m/min, adjustable for precise control.
- Slewing Speed: 0.5 r/min to 2.0 r/min, allowing for smooth rotation.
- Derricking Speed: 15 m/min to 25 m/min, enhancing operational efficiency.
- Traveling Speed: 20 m/min to 30 m/min, suitable for quick repositioning.
- Luffing Modality: Rope luffing or rack luffing, providing flexibility in operation.
- Room System: Lattice jib/box jib; double-link jib in parallelogram/single-jib, accommodating different lifting configurations.
- Load Handling Device: Lifting hook, ensuring secure attachment of loads.
- Electrical Control: PLC general control or general control & frequency conversion control or frequency conversion control, offering advanced operational control options.
- Room System for Cargo: Suitable for bulk goods, cargo, and containers, enhancing versatility.
Frequently Asked Questions (FAQs)
Q1: What is the primary application of the Shipboard Crane Davit?
A1: The Shipboard Crane Davit is primarily used for launching and recovering workboats and rescue boats in marine environments, ensuring safe and efficient operations.
Q2: What is the maximum lifting capacity of the Shipboard Crane Davit?
A2: The maximum lifting capacity ranges from 25 tons to 120 tons, depending on the model and configuration, accommodating various boat sizes and weights.
Q3: How does the remote control unit enhance safety during operations?
A3: The remote control unit allows operators to control the lowering height of the boat from within the boat itself, ensuring safety when no operator is present on deck and preventing potential accidents.
Q4: What certifications does the Shipboard Crane Davit hold?
A4: The product is available with certifications from CCS, RINA, MED, LR, DNV, and BV, ensuring compliance with international safety and quality standards.
Q5: Can the Shipboard Crane Davit operate in extreme temperatures?
A5: Yes, the Shipboard Crane Davit is designed to operate in an ambient temperature range of -20°C to 45°C, ensuring reliable performance in diverse climatic conditions.
Please Note: The description might be incorrect, please contact us for confirmation.
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