High Performance Crane Accessories Solution to Operational Efficiency Issues in Construction

Product Details

Our Crane Accessories are widely and deeply used in many fields such as high-rise building construction, heavy equipment installation and port cargo handling due to their excellent product qualities such as high strength and durability, precise matching and versatility.

Ship cranes mainly include boom devices, deck cranes and other auxiliary loading machinery. Because of the particularity of ships, their cranes generally have a lifting capacity of less than 10 tons. This type of ship crane, like other car cranes, consists of several major components such as booms, gear turntables, reducers, and winches. Generally, the motor and winch provided by the crane provide power to drive the turntable to rotate 360 ​​degrees or the wire rope inside the crane arm to extend and retract, thereby playing a role in lifting cargo.

Port cranes are generally used in high-altitude operations in some port construction, such as shipyards, factories, workshops, and operations between shore and ship, and between ship and shore.

Small port cranes generally have the characteristics of heavy weight, small footprint, high work efficiency, and stable operation. With the continuous soaring and development of the economy, water transportation has also become a relatively distinctive mode of transportation. Whether it is a variety of ports or docks, they have gradually become an increasingly busy transit station or a terminal for cargo. Therefore, the importance of dock cranes is particularly prominent when loading or unloading goods. Generally, the small ship cranes we commonly see are mainly used for lifting and unloading goods on ships in inland rivers, lakes or offshore. They mainly include booms, wire ropes, winches, etc. Recently, some offshore fisheries or lake farming also often use ship cranes—it can be seen that small ship cranes are not only the main loading and unloading tools for port ship decoration goods, but also widely used in other fields of ship use such as underwater salvage and various marine fishery operations, and the scope of application is becoming wider and wider.

Product Specifications

Material: High-strength alloy steel

Surface coating type: Anti-corrosion coating

Tolerance range: ±0.01mm

Processing method: Precision forging and welding technology

Quality inspection: Ultrasonic flaw detection and load testing

Analysis of common faults of marine cranes

Fault: Telescopic cylinder vibrates, telescopic arm creeps

Reason:

1) There is air in the hydraulic system

2) The seals in the telescopic cylinder are aged.

3) There is dirt in the balance valve

Solution:

1) Repeatedly move all actuators to two limit points in the no-load state to remove air in the system.

2) Replace the cylinder seals.

3) Clean the balance valve.

Fault:

When no-load, the working speed is too slow

Reason:

1) The suction pipe is squeezed flat.

2) Air is sucked from the suction pipe.

Solution:

1) Replace the suction pipe.

2) Tighten the suction pipe joint.

The telescopic arm cannot be extended and retracted in sequence

Reason:

1) Lack of lubricating oil.

2) The slider is broken.

3) There is a problem with the adjustment of the telescopic arm sequence valve.

Solution:

1) Add lubricating oil.

2) Replace the slider.

3) Adjust the telescopic arm valve.

Marine crane cannot complete the rated lifting weight

Fault cause:

1) Insufficient power of the hydraulic pump.

2) The overflow valve is set incorrectly.

3) The hydraulic pump seal is damaged.

Solution:

1) Replace the hydraulic pump.

2) Re-adjust the overflow valve pressure

(manufacturer solution).

3) Replace the hydraulic pump seal.

The boom automatically falls after lifting

Cause of failure

1) The piston seal of the variable-length oil cylinder is damaged

2) The throttle port of the balance valve is blocked by dirt or the return spring is fatigued.

Solution

1) Replace the oil cylinder seal.

2) Clean the balance valve and remove the dirt and replace the spring.

The marine crane cannot rotate correctly

Cause of failure:

1) There is foreign matter in the slewing buffer valve.

2) The seal of the slewing oil cylinder is worn.

3) The oil-free support sleeve in the gear column is worn.

Solution:

1) Clean or replace the slewing buffer valve.

2) Replace the seal ring.

3) Replace the oil-free support sleeve.

Joint or slewing sound

Cause of failure:

Lack of lubrication.

Solution:

Inject lubricating oil according to the prescribed cycle.

Oil cylinder leaks oil, external leakage, internal leakage

Cause of failure:

1) The end cover seal is aging and damaged.

2) The piston seal is worn.

Solution:

Replace the seal

Large noise, large pressure fluctuations, abnormal sound of hydraulic valve

Cause of failure:

1) The suction pipe or suction filter is blocked.

2) The viscosity of the oil is too high.

3) The suction port is poorly sealed and air is sucked in.

4) The parts inside the pump are worn.

5) The system pressure is too high.

Solution:

1) Clear the blockage and dirt.

2) Replace the hydraulic oil as required or preheat it with a heater.

3) Replace the seal and tighten the screws.

4) Replace or repair internal parts.

5) Re-adjust the system pressure.

FAQ
Q1: What types of lifting equipment are Crane Accessories suitable for?
A1: Crane Accessories are suitable for various types of lifting equipment, including bridge cranes, gantry cranes, tower cranes and truck cranes. Whether it is heavy industrial equipment or light lifting equipment, we have suitable accessories to choose from.

Q2: How to determine which Crane Accessories are needed?
A2: We recommend that customers provide information such as equipment model, usage environment and specific needs. Our technical team will conduct a detailed evaluation based on this information and recommend the most suitable Crane Accessories to ensure the best performance of the equipment.

Q3: Is the installation of Crane Accessories complicated?
A3: Most Crane Accessories are simple in design and the installation process is very quick. We provide detailed installation guides and technical support, and can also send professionals for on-site guidance when necessary to ensure smooth installation.

Q4: What are the maintenance requirements of Crane Accessories?
A4: Crane Accessories have low maintenance requirements. Regularly check the wear of the accessories and keep them lubricated and clean. For specific maintenance requirements, please refer to the maintenance manual we provide, or contact the after-sales service team for professional advice.

Contact Information for Crane Accessories Inquiries

For more information about Crane Accessories or to obtain customized solutions, please contact us:

• Contact Person: Frank
• Tel: 86-510-82305188-8060
• Mobile: 86-18605101203
• Mail: frankgu@cmecwuxi.com
• Address: 15-16F, Building A10, No. 777, JianZhu West Road, Binhu District, Wuxi, Jiangsu, 214072. P.R. China

We look forward to collaborating with you and providing robust support and services for your business.