Shipyard Portal Jib Crane

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 1 unit

Supply Capability:: 20 unit/month

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Shipyard portal jib crane in high quality

Port or harbor portal crane is used for loading and discharging cargos from ships or shipbuilding. It is suitable for various ports and shipyards with hook, hanger, grab, container spreader etc. Portal Jib crane is also called mobile slewing and luffing crane due to its working features.

Features:

1. Power source is three-phase alternating current, rated frequency is 50HZ, rated voltage is 380V.
2. The temperature in the working environment should be in the scope of -20°C~+45°C and the relative humidity is no higher than 95%(with dew).
3. In-service, the wind speed should be no higher than 20 m/s; and out-of service, the wind speed should be (35-42) m/s.
4. The installation of the crane rail should accord with requirement of Jt5022.

Technical Data:

parameters		30t	60t	80t	100t	150t	200t
Lifting weight	Main hook(t)	30	60	80	100	150	200
Lifting weight	Auxiliary hook(t)	8	16	16	16	20	20
Work radius	Main hook(t)	18-45	18-40	16-50	16-50	16-50	20-50
Work radius	Auxiliary hook(t)	20.8-50	19.9-43.8	18.5-55	18.5-55	18.5-55	23-53
Max. lifting height	Main hook(t)	50	45	63	63	63	65
Max. lifting height	Auxiliary hook(t)	53.8	50	68	68	68	68
Lifting speed	Main hook(t)	8.6	6.24	4.5	4	4.5	5
Lifting speed	Auxiliary hook(t)	15	20	13.6	13.6	13.6	20
Travelling speed (m/min)		16.2	20	16.86	16	16	16
Rotation spped (r/min)		-0.4	-0.4	-0.31	-0.4	-0.3	-0.3
rail span(m)		10	10	10	10	10	10

Q: The difference between the derrick and the construction elevator?: Derrick is with the hoist rope hoisting, referred to as goods for SSB100 type, with construction lifter model does not allow the manned, deadweight is one tons, construction lifter is said cargo amphibious ladder, with gear and rack driving, weight is 2 tons, you can have a look at the GB/T 10054-2005, the construction lifter, with clear rules.

Q: There are two 18-story buildings under construction and tower cranes.: Do not have a regulation, as long as the benefit construction organization, installation does not install construction lift machine all can. It should be explained that the construction elevator has manned and pure cargo.

Q: What measures should be taken to ensure safety when operating electric-motor powered building hoists?: When using electric-motor type building hoists, safety precautions include: ensuring all safety devices are in good working order, regularly inspecting and maintaining the hoist, following the manufacturer's guidelines, never overloading the hoist, keeping the hoist and its surroundings clean and free from obstructions, using proper lifting techniques, ensuring the hoist is stable and secure, wearing appropriate personal protective equipment, and training operators on the safe use of the hoist. Adhering to these precautions can significantly reduce the risk of accidents and ensure the safety of workers and the integrity of the construction process.

Q: This question asks for a comparison of various types of electric building hoists, highlighting their unique features and differences.: Electric building hoists come in various types, each designed for specific applications. The main differences lie in their capacity, lifting speed, control systems, and construction. For instance, worm gear hoists are compact and offer precise control, suitable for light to medium-duty applications. Chain hoists are versatile with higher speeds and are ideal for general lifting tasks. Electric wire rope hoists are powerful and designed for heavy-duty lifting, often used in construction and industrial settings. Variable frequency drives in hoists allow for speed control, enhancing safety and efficiency. Each type has its operational advantages and limitations, making the choice dependent on the specific lifting requirements and environmental conditions.

Q: This question asks for the procedure to safely lower an object after it has been lifted using a building hoist.: To safely lower an object after using a building hoist, ensure that the area below is clear of people and obstacles. Slowly release the hoist's brake or control mechanism, allowing the object to descend gradually. Keep a steady hand on the controls to maintain a controlled descent. Monitor the object's position and communicate with ground personnel if necessary. Ensure all safety hooks and attachments are secure until the object reaches the ground. Once the object is safely on the ground, secure it and disconnect it from the hoist. Always follow the manufacturer's guidelines and safety protocols for the specific hoist being used.

Q: Is it possible to use a lifting device to lift objects that are heavier than its specified maximum load?: No, a lifting device should never be used to lift objects that exceed its rated load capacity. Doing so can lead to catastrophic failure of the device, potentially causing serious injury or death. Always adhere to the manufacturer's specifications to ensure safety and prevent accidents. Overloading a lifting device can result in structural damage, compromised safety mechanisms, and increased risk of collapse or dropping the load. It is crucial to respect the load limits to maintain the integrity and reliability of the lifting equipment.

Q: This question asks about frequent issues related to building hoists and seeks solutions for these problems.: Common problems with building hoists include mechanical failures, electrical issues, overloading, and safety malfunctions. Mechanical failures can be fixed by regular maintenance, lubrication, and replacement of worn parts. Electrical problems may require checking wiring, connections, and replacing faulty components. Overloading can be prevented by strictly adhering to the hoist's weight limit and using load indicators. Safety malfunctions, such as brake failure, require immediate attention and may involve replacing brake pads or overhauling the braking system. Always ensure that hoists are used according to the manufacturer's guidelines and are regularly inspected by qualified personnel to prevent accidents and ensure safe operation.

Q: Identify the elements that influence the durability and operational lifespan of lifting machinery, specifically focusing on Building Hoists.: The lifespan of lifting equipment, including Building Hoists, is influenced by several factors: 1) Material Quality: The type and quality of materials used in construction directly affect durability and resistance to wear and tear. 2) Design and Engineering: Proper design ensures optimal performance and reduces stress on components. 3) Frequency of Use: More frequent use can lead to faster wear and tear. 4) Maintenance and Repair: Regular maintenance can extend the lifespan, while neglect can shorten it. 5) Operating Conditions: Environmental factors such as temperature, humidity, and exposure to corrosive substances can impact longevity. 6) Load Capacity: Overloading can cause premature failure. 7) Compliance with Safety Standards: Adhering to safety guidelines can prevent accidents and damage. 8) Technological Advancements: Newer models may have improved features that extend lifespan.

Q: Is it possible to utilize a double-rope lifting mechanism within the context of a building hoist?: Yes, a double-rope lifting system can be used in a building hoist. This system offers advantages such as increased safety due to redundancy and the ability to lift heavier loads compared to a single-rope system. The double-rope setup allows for the hoist to handle the load with two separate ropes, reducing the risk of failure and providing a more stable lifting platform. It's common in applications where high load capacities and safety are paramount, such as in construction for lifting materials and equipment.

Q: This question asks for a comparison of the benefits and drawbacks associated with the use of hydraulic lifting equipment.: Hydraulic lifting equipment offers several advantages, including high force generation, compact design, and precise control. It is energy-efficient and can handle heavy loads with ease. The systems are also known for their durability and low maintenance requirements. However, there are disadvantages such as sensitivity to leaks and the need for regular fluid checks. They can be complex to install and maintain, and the equipment can be costly. Additionally, hydraulic systems are sensitive to temperature changes, which can affect performance.

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