In the dynamic and rapidly evolving construction landscape of China, crane luffing technology stands as a cornerstone of efficiency, precision, and safety. Level luffing cranes, in particular, have become indispensable in various industries, including construction, ports, mining, and manufacturing. These cranes offer the unique ability to maintain a constant hook height while moving loads horizontally, making them ideal for handling containers, bulk materials, and heavy machinery with utmost precision.

This in-depth guide delves into the world of crane luffing in China, exploring the key advantages, applications, and innovations in this field. Readers will gain insights into the top manufacturers such as Zoomlion, XCMG, and Potain, who are driving advancements in crane technology. The guide will also cover critical aspects such as sourcing considerations, post-purchase inspections, and the importance of compliance with international safety and quality standards.

Whether you are a contractor looking to optimize your construction projects, a business seeking to acquire reliable crane equipment, or

China Luffing tower crane manufacturers …

Since the specific website you mentioned is not accessible in the provided search results, I will create a comprehensive guide based on the general information about luffing jib tower cranes gathered from the other sources.

Luffing Jib Tower Cranes: A Comprehensive Guide

Introduction

Luffing jib tower cranes are specialized cranes designed to address the unique challenges of construction in confined and urban environments. Their ability to adjust the angle of the jib vertically makes them ideal for projects with limited space and specific safety requirements.

Key Features of Luffing Jib Tower Cranes

Smart Designs and Ease of Installation

• Luffing jib cranes are designed with smart architectures that facilitate easy erection, disassembly, and transportation. This modular design ensures fast cycle times and minimizes the logistical challenges associated with crane setup and teardown[1][3].

Ergonomic Operator Cab

• These cranes feature ergonomic operator cabs equipped with climate controls, easy-to-read display panels, and stepless motor operation of the trolley and hoist. This allows operators to control the load with greater precision and comfort[1][3].

Long-Lasting Parts

• Luffing jib cranes are built with high-quality, long-lasting parts sourced from premium manufacturers. This ensures the crane can withstand heavy workloads over an extended period[1][3].

Load Measurement System and Safety Features

• They are equipped with a load measurement system that enables high hoisting speeds when operating with light loads or an empty hook. Additional safety features include built-in encoders for overspeed protection and the option to install anti-collision and zoning systems, as well as CCTV cameras[1][3].

Different Foundation Configurations

• Luffing jib cranes can be adapted to various foundation configurations, making them suitable for different job sites, including those with limited space or specific access requirements[1].

Advantages of Luffing Jib Tower Cranes

Vertical Lifting in Confined Spaces

• The ability to raise or lower the jib vertically allows these cranes to operate efficiently in urban environments with limited horizontal space. This feature is particularly useful in areas where surrounding buildings or obstacles restrict the movement of conventional tower cranes[2][3].

Reduced Slew Radius

• Luffing jib cranes have a smaller slew radius compared to traditional saddle jib tower cranes, enabling them to work safely in crowded areas without encroaching on neighboring structures[2][3].

Precision and Control

• The luffing mechanism provides greater control over load placement, making these cranes ideal for projects requiring precision, such as high-rise construction and steel erection[2].

Higher Hook Heights

• Luffing jib cranes can achieve higher hook heights due to their vertical jib movement, making them suitable for tall construction projects[2][3].

Disadvantages of Luffing Jib Tower Cranes

Slower Load Handling

• Luffing cranes generally have slower load handling speeds, especially during the luffing process, which can impact productivity on certain projects[2].

Complexity and Maintenance

• The luffing mechanism adds complexity to the crane’s design, leading to potentially higher maintenance requirements and costs[2].

Limited Horizontal Reach

• These cranes may have a limited horizontal reach compared to other tower cranes, which could affect their suitability for projects requiring extensive horizontal reach[2].

Operator Skill

• Operating a luffing jib tower crane requires specialized training and experience due to the unique movement characteristics of the crane[2].

Applications and Use Cases

Urban Construction

• Luffing jib cranes are highly effective in urban construction sites where space is limited and surrounding structures must be avoided. They can lift the jib from a horizontal to a completely vertical position, ensuring the load remains within the construction site’s limits[3].

High-Rise Construction

• Their ability to achieve higher hook heights and precise load placement makes them ideal for high-rise construction projects[2][5].

Wind Turbine Installation

• Luffing jib cranes are also used in wind turbine installations where elevated hook heights are necessary. They can adapt to the specific demands of wind turbine construction[1].

Auxiliary Cranes

• Using luffing jib cranes as auxiliary cranes to primary tower cranes can increase material handling cycles on the job site, minimizing construction time[3].

Conclusion

Luffing jib tower cranes offer a range of benefits that make them indispensable in modern construction, particularly in urban and confined spaces. Their unique design, precision, and safety features ensure efficient and safe operation, even in the most challenging environments. While they have some drawbacks, the advantages of luffing jib cranes make them a valuable asset for any construction project requiring specialized lifting solutions.

China IHURMO Luffing Tower Crane Wholesale

IHURMO Luffing Tower Crane: A Comprehensive Guide

Introduction

The IHURMO luffing tower crane is a state-of-the-art lifting solution designed to revolutionize the construction industry with its unparalleled efficiency, safety, and reliability. Here is a detailed guide to its features, benefits, and technical specifications.

Key Features

Compact Design and Urban Adaptability

The IHURMO luffing tower crane is optimized for work in confined spaces and urban environments. Its compact design and short tail swing allow it to adapt to restricted job sites, while the luffing jib can be raised and lowered to avoid obstacles and maintain a safe working radius.

Technical Specifications

• Height: 28m
• Jib Length: 40m
• Maximum Load Capacity: Up to 6 tons
• Main Chord Steel/Mast Size: L46a1: 1.6×1.6×3m

Modular Design

The crane features a modular design with highly interchangeable mast sections, making assembly and disassembly on-site efficient. This design reduces the time and cost associated with transportation and installation. The mast sections are precision-processed to ensure excellent flatness and verticality, enhancing the overall stability and performance of the crane.

Operational Efficiency

Advanced Hydraulic Luffing Mechanism

The crane is equipped with an advanced hydraulic luffing mechanism that ensures smooth and precise operation. This mechanism allows for quick and efficient lifting of heavy loads.

Adjustable Speeds

The hoisting mechanism and slewing device feature adjustable speeds regulated by the winding wire motor and resistor. This results in smooth movements and prolongs the service life of the crane, reducing maintenance costs and downtime.

Safety and Reliability

Safety Devices

The IHURMO luffing tower crane is equipped with essential safety devices to ensure a secure working environment. These include mechanisms to prevent accidents and ensure stable operation.

International Certifications

The crane is manufactured in compliance with ISO9001 quality standards and holds both CE and EAC certifications, ensuring it meets the strictest safety and performance criteria.

Customization and Versatility

Customizable to Project Needs

The IHURMO luffing tower crane is highly customizable to meet the specific requirements of various construction projects. Whether it is for constructing high-rise hotels, residential buildings, industrial complexes, or tall chimneys, the crane can be tailored to your needs.

Global Support and Training

Comprehensive Support

IHURMO offers comprehensive support and training to ensure that your team can operate the crane safely and efficiently. This includes maximizing productivity and minimizing downtime.

Additional Benefits

Smooth Operation and Stability

The combination of advanced components, such as the robust horizontal arm bracket and the precise radius changing device for the arm-trolley, ensures smooth operation, excellent stability, and high working efficiency.

Easy Installation and Dismantling

The crane’s design allows for easy installation and dismantling, which is beneficial for efficient transportation and relocation to different construction sites.

Conclusion

The IHURMO luffing tower crane is a robust and reliable piece of machinery that is well-suited for a wide range of construction projects. Its innovative design, modular components, and adherence to strict quality standards make it an excellent choice for any construction site. With its focus on safety, efficiency, and customization, the IHURMO luffing tower crane is a valuable asset for any construction project.

Luffing Jib Tower Crane GHD5522-10

Guide to the BQ GHD5522-10 Luffing Jib Tower Crane

Overview

The BQ GHD5522-10 luffing jib tower crane is a versatile and powerful piece of equipment designed for heavy-duty construction projects, particularly in congested urban areas. Here is a comprehensive guide to its features, specifications, and benefits.

Key Specifications

General Specifications

• Maximum Load: 10 tons
• Working Range: 55 meters
• Freestanding Height: 45.9 meters
• Mast Section Size: 2.0m * 2.0m * 3m

Performance Parameters

• Hoisting Speed: 0-90 m/min
• Slewing Speed: 0-0.7 r/min
• Jib Length: Adjustable from 25 to 55 meters
• Maximum Lifting Height: Up to 180 meters

Features

Lifting Capacity and Reach

• The crane has a maximum lifting capacity of 10 tons, making it suitable for handling heavy loads on construction sites.
• The adjustable jib length from 25 to 55 meters provides flexibility in reaching different areas of the construction site.

Slewing and Rotation

• The crane features a 360-degree slewing range, enabling it to rotate and lift materials in any direction.

Safety Features

• Equipped with an overload protection system to prevent accidents due to excessive loads.
• Anti-Collision System to avoid collisions with other cranes or structures.
• Emergency stop buttons for immediate shutdown in case of emergencies.

Installation and Dismantling

• Designed for easy installation and dismantling, allowing for efficient transportation and relocation to different construction sites.

Operational Benefits

High Operating Efficiency

• The GHD5522-10 is known for its high operating efficiency, making it a reliable choice for construction projects that require heavy lifting and precise placement.

Adaptability

• The crane’s adjustable jib length and 360-degree slewing capability make it adaptable to various construction site conditions.

Safety and Reliability

• The inclusion of advanced safety features such as overload protection and anti-collision systems ensures safe operations on the construction site.

Maintenance and Support

Warranty and Service

• The core components (bearing, motor, gear, pump) come with a 1-year warranty.
• Video technical support and online support are available for out-of-warranty service.
• Overseas service outlets are located in countries like the UAE.

Additional Services

• Factory inspection and mechanical test reports are provided.
• Localized warranty service is available for 1 year.

Applicability and Industry Use

Construction Works

• The GHD5522-10 is specifically designed for construction works, particularly in urban areas where space is limited and high-rise buildings are common.

Other Models Available

• BQ also offers other models of luffing tower cranes, such as GHD4015-6, GHD4510-6, GHD5012-8, and more, catering to different project requirements.

Conclusion

The BQ GHD5522-10 luffing jib tower crane is a robust and efficient piece of equipment tailored for the demands of modern construction projects. With its high lifting capacity, adjustable jib length, and advanced safety features, it is an ideal choice for construction companies looking to enhance their operational efficiency and safety standards.

Chinese Manufactured Luffing Jib Tower Crane – YWE

Since the provided URL does not lead to a specific webpage that can be accessed directly, I will create a comprehensive guide based on the general information available about luffing jib tower cranes from the other sources.

Guide to Luffing Jib Tower Cranes

What is a Luffing Jib Tower Crane?

A luffing jib tower crane is a type of tower crane that features a jib which can be raised and lowered vertically, a motion known as luffing. This unique feature distinguishes it from conventional tower cranes with fixed jibs.

Key Components and Mechanism

• Luffing System: The crane is equipped with a luffing system that includes ropes and pulleys, allowing the operator to adjust the angle of the jib to lift loads vertically. This system enhances the crane’s versatility and reach in confined spaces[2][3].

Advantages of Luffing Jib Tower Cranes

Vertical Lifting in Confined Spaces

Luffing jib tower cranes are particularly useful in urban and built-up areas where horizontal space is limited. The ability to raise and lower the jib vertically allows for efficient operation without oversailing issues[1][2][3].

Reduced Slew Radius

These cranes have a smaller slew radius compared to traditional tower cranes, making them ideal for crowded construction sites where multiple cranes are in operation. This reduced radius ensures safe and efficient operation without encroaching on neighboring structures[1][2][3].

Precision and Control

The luffing mechanism provides greater control over load placement, which is crucial for projects requiring precision, such as high-rise construction and steel erection[2].

Higher Hook Heights

Luffing jib cranes can achieve higher hook heights than other tower crane types due to the vertical movement of the jib, making them suitable for tall construction projects[2][3].

Disadvantages of Luffing Jib Tower Cranes

Slower Load Handling

Luffing cranes generally have slower load handling speeds, especially during the luffing process, which can impact productivity on certain projects[2].

Complexity and Maintenance

The luffing mechanism adds complexity to the crane’s design, potentially leading to higher maintenance requirements and costs[2].

Limited Horizontal Reach

Luffing cranes may have a limited horizontal reach compared to other tower cranes, which could affect their suitability for projects with extensive horizontal reach requirements[2].

Operator Skill

Operating a luffing jib tower crane requires specialized training and experience due to the unique movement characteristics of the crane[2].

Applications and Suitability

Urban Construction

Luffing jib tower cranes are highly suitable for urban construction sites where space is limited and there are obstacles such as surrounding buildings or power lines[1][2][3].

High-Rise Construction

Their ability to achieve higher hook heights and precise load placement makes them ideal for high-rise construction projects[2][3].

Multiple Crane Operations

In projects where multiple cranes are in operation, luffing jib tower cranes are preferred due to their reduced slew radius and ability to operate efficiently without encroaching on neighboring cranes’ working areas[1][2][3].

Wind Turbine Installation

Some luffing jib tower cranes are designed to meet the specific needs of wind turbine installation, offering the necessary free-standing height and lifting capacity[3].

Features and Innovations

Smart Designs

Modern luffing jib tower cranes often feature smart designs that make them easier to erect, disassemble, and transport. These designs include ergonomic operator cabs with climate controls and easy-to-read display panels[3].

Load Measurement System

Advanced load measurement systems enable high hoisting speeds and include built-in encoders for overspeed protection, enhancing safety and efficiency[3].

Built-In Safety Features

These cranes are equipped with built-in safety features such as anti-collision and zoning systems, and the option to install CCTV cameras for enhanced safety[3].

Different Foundation Configurations

Luffing jib tower cranes can be adapted to various foundation configurations, making them versatile for different job sites and minimizing construction and access footprints[3].

Conclusion

Luffing jib tower cranes offer a unique set of advantages that make them indispensable tools in modern construction. Their ability to operate in confined spaces, achieve higher hook heights, and provide precise load placement makes them ideal for a variety of construction projects, especially in urban and high-rise environments. While they have some disadvantages, the benefits they offer in terms of safety, efficiency, and versatility make them a valuable asset for any construction site.

S480LH24 Chinese Manufactured Luffing Jib Tower Crane

S480LH24 Chinese Manufactured Luffing Jib Tower Crane: An In-Depth Guide

Overview

The S480LH24 is a luffing jib tower crane manufactured by SYM Hoist&Tower Crane Equipment, a professional crane and lift platform manufacturer based in China. This crane is designed to excel in congested construction sites, particularly where space is limited due to the presence of buildings, other cranes, or other obstacles.

Key Specifications

Maximum Load and Jib Length

• Maximum Load: 15.6 tons
• Jib Length: 60 meters
• Tip Load: 5 tons

Structural Capabilities

• Free Standing Height: 63.3 meters
• Mast Size: Typically 2.5 x 2.5 x 6 meters (though specific mast size may vary)[4].

Operational Features

Level Luffing System

The S480LH24 features a level luffing system, which coordinates the luffing and hoist movements. This system allows for precise control over the jib’s position, ensuring smooth and efficient operation.

Turning Radius

One of the key advantages of the luffing jib tower crane is its ability to raise and lower the jib, significantly reducing the turning radius. This makes it ideal for sites with limited space and multiple obstacles.

Applications

The S480LH24 is particularly suited for:
– Congested Urban Sites: Where buildings, other cranes, or space limitations are a concern.
– High-Rise Construction: The crane’s ability to operate in tight spaces and its heavy lifting capabilities make it a valuable asset for high-rise construction projects.

Manufacturer and Support

SYM Hoist&Tower Crane Equipment

• Experience: Over 20 years of experience in manufacturing cranes and lift platforms.
• Original Spare Parts: Supplies 100% original spare parts for tower cranes.
• Customer Support: Provides comprehensive support from pre-sales to after-sales processes, protecting the rights of clients throughout the entire process.

Additional Information for Inquiries

For those interested in purchasing or inquiring about the S480LH24, it is recommended to provide the following information:
– Quantity: The number of cranes required.
– Model: Specific model details, in this case, the S480LH24.

Conclusion

The S480LH24 luffing jib tower crane is a robust and versatile piece of equipment designed to meet the demands of modern construction, especially in urban and congested environments. With its advanced level luffing system, reduced turning radius, and strong lifting capabilities, it stands as a reliable choice for construction projects requiring precision and efficiency.

Luffing Tower Crane China Famous Manufacturer

Given that the specific website you mentioned is not accessible in the search results, I will create a comprehensive guide to luffing tower cranes based on the general information available from similar sources.

Luffing Tower Cranes: A Comprehensive Guide

Introduction

Luffing tower cranes are a specialized type of tower crane designed to operate efficiently in congested urban areas and construction sites with limited space. These cranes are characterized by their ability to adjust the jib angle, allowing for precise control over the load and the ability to work around obstacles.

Key Features of Luffing Tower Cranes

Design and Mechanism

• Adjustable Jib: Luffing tower cranes have a jib that can be raised or lowered to adjust the height and reach of the crane. This mechanism allows the crane to work in tight spaces or areas with height restrictions[4].
• Reduced Slewing Radius: Unlike traditional tower cranes, luffing tower cranes have a highly reduced slewing radius, making them ideal for sites where multiple cranes are operating simultaneously[4].

Operational Capabilities

Lifting Capacity

• Luffing tower cranes can have varying maximum lift capacities, ranging from 8 to 33 U.S. tons, depending on the model. For example, the Comansa LCL165 series has models with capacities of 8.8 and 13.8 U.S. tons, while the Comansa LCL500 series can lift up to 33 U.S. tons[1][2].

Jib Length

• The maximum jib length can vary significantly. For instance, the Comansa LCL165 series has a maximum jib length of 164 feet, while the Comansa LCL500 series extends up to 213.25 feet[1][2].

Height and Reach

• These cranes can achieve high freestanding heights; for example, the Comansa LCL165-12t has a maximum freestanding height of 185.69 feet, and the Comansa LCL500-30t can reach up to 224 feet[1][2].

Safety and Efficiency Features

Hoisting Mechanisms

• Many luffing tower cranes come equipped with advanced hoisting mechanisms such as the Effi-Plus system, which increases hoist speeds at low loads, enhancing efficiency and smooth operation[1].

Automatic Reeving Change

• Some models, like the Comansa LCL500 series, feature an automatic reeving change mechanism that allows the crane to switch between different capacity settings quickly, adapting to various job site requirements[2].

Electronic Control Systems

• Modern luffing tower cranes often include ergonomic cabins with electronic control systems, anti-collision systems, and forbidden zone systems to ensure safe and precise operation[1].

Applications

Urban Construction

• Luffing tower cranes are particularly well-suited for urban construction projects due to their ability to work in tight spaces and around obstacles such as buildings or other structures[4].

High-Rise Construction

• They are commonly used in the construction of high-rise buildings where their versatility and compact design make them ideal for lifting and moving heavy loads efficiently[4].

Maintenance and Transport

Modular Design

• Many luffing tower cranes are designed with a modular system, making them easier to transport by breaking down large components into lighter, more manageable parts. This design also allows for many parts to be interchangeable with other models[1].

Pre-Installed Components

• Components such as hoist and luffing cables often come pre-installed with reevings, simplifying the setup process and reducing downtime for maintenance[1].

Additional Considerations

Power Supply and Control Systems

• These cranes can operate on various power supply specifications and may include advanced control systems such as AI control, VFD control, or ordinary speed control[3].

Safety Certifications

• Luffing tower cranes often comply with multiple safety certifications, including CE, ISO, GOST, and CU-TR, ensuring they meet stringent safety standards[3].

Conclusion

Luffing tower cranes are indispensable tools in modern construction, especially in urban and high-rise projects. Their unique design, advanced features, and operational capabilities make them highly efficient and safe for use in congested and complex job sites. Understanding the key features, operational capabilities, and applications of these cranes is crucial for selecting the right equipment for specific construction needs.

Level Luffing Crane China Manufacturer Guide

Guide to Level Luffing Cranes

Introduction

A level-luffing crane is a specialized type of crane designed to maintain the hook at a constant height while the jib moves up and down. This feature is crucial in applications where precise load movement near ground level is necessary, such as in construction, shipbuilding, and freight loading.

How Level Luffing Cranes Work

Basic Mechanism

Level-luffing cranes operate by moving the jib vertically to adjust the hook’s position inwards and outwards relative to the crane’s base. The key characteristic is that the hook remains at the same level throughout this movement[2][3][4].

Mechanical Linkage

One of the early methods to achieve level luffing is through mechanical linkage, such as the “Toplis” design. This system uses a reeving of hoist cables over pulleys at the crane’s apex to compensate for the jib’s vertical movement, ensuring the hook stays level[1].

Horse-Head Jibs

Modern level-luffing cranes often incorporate a “horse head” section at the top of the jib. The geometry of this section is designed such that the interconnected action of the pivots keeps the hook level as the jib moves up and down[1][2][3].

Powered Level-Luffing

Advanced level-luffing cranes use electronic controls and reversible motors to adjust the hoist cable, allowing for precise positioning of the hook. Earlier systems used hydraulic gearboxes, but these were more complex and costly[1].

Features of Level Luffing Cranes

Design and Architecture

• Level-luffing cranes are designed with modular, intelligent designs that facilitate fast cycle times, easy erection, disassembly, and transportation.
• They often include built-in encoders for overspeed safety and load measurement devices to ensure high hoisting speeds with light loads and empty hooks[2].

Safety and Maintenance

• These cranes are equipped with low-maintenance architecture and modern safety features, including anti-collision systems, zoning systems, and CCTV cameras.
• Operator cabs are designed for comfort and ease of use, with climate controls, flexible seating, and easy-to-read display screens. Step-less motor operation for the trolley and hoist allows for slow and precise load movement[2].

Quality and Reliability

• Level-luffing cranes use premium-quality parts proven for heavy and continuous use in various working environments.
• They offer reliable operation with features such as failsafe negative brakes and extensive ratio ranges[2][3].

Advantages of Level Luffing Cranes

Precision and Control

• The ability to maintain the hook at a constant height is crucial for tasks requiring precise load movement near ground level.
• This precision is particularly valuable in construction and shipbuilding, where careful handling of loads is essential[1][2][3].

Space Efficiency

• Level-luffing cranes are suitable for construction projects with limited space, as they can operate effectively within confined areas.
• Their reduced slewing radius makes them ideal for use in congested sites or where multiple cranes are in operation[2][4].

Versatility

• These cranes can perform a variety of tasks, including bucket loading, container loading, and hook loading.
• They are used in shipyards for lifting and installation tasks, as well as in ports for freight loading[3].

Applications of Level Luffing Cranes

Construction

• Level-luffing cranes are widely used in construction projects for their ability to handle loads with precision near ground level.
• They are particularly useful in urban areas or sites with limited space[2][4].

Shipbuilding

• In shipyards, these cranes are essential for lifting and installing heavy components with accuracy.
• They work in tandem with other crane operations, such as slewing, to position loads precisely on the ship’s deck[1][3][5].

Freight Loading

• Level-luffing cranes are used in ports for loading and unloading cargo, where the need for precise load handling is critical.
• They are also used in intermodal operations for container handling[3].

Luffing and Slewing Coordination

Luffing

• Luffing refers to the vertical movement of the jib to control the hook’s height.
• This movement is crucial for raising or lowering materials with precision and accounting for factors like wind resistance[5].

Slewing

• Slewing involves the horizontal rotation of the crane’s superstructure to position the load accurately.
• This movement is indispensable for tasks requiring the precise placement of loads, such as in construction and shipbuilding[5].

Coordination

• Luffing and slewing work together seamlessly to accomplish complex tasks.
• In shipyards, for example, loads are first luffed to the appropriate height and then slewed to the precise location on the ship’s deck[5].

Conclusion

Level-luffing cranes are specialized tools that offer significant advantages in precision, control, and space efficiency. Their ability to maintain the hook at a constant height while moving the jib up and down makes them indispensable in various industries, including construction, shipbuilding, and freight loading. Understanding the mechanisms, features, and applications of level-luffing cranes is essential for optimizing their use and ensuring safe and efficient operations.

Luffing Jib Crane Construction Tower Crane

Guide to the BQ GHD5522-10 Luffing Jib Tower Crane

Overview

The BQ GHD5522-10 luffing jib tower crane is a versatile and powerful piece of equipment designed for heavy-duty construction projects, particularly in congested urban areas. Here is a comprehensive guide to its features, specifications, and operational capabilities.

Key Specifications

General Specifications

• Maximum Load: 10 tons
• Working Range: 55 meters
• Freestanding Height: 45.9 meters
• Mast Section Size: 2.0m * 2.0m * 3m

Performance Capabilities

• Maximum Lifting Height: Up to 180 meters, making it suitable for tall structures and buildings.
• Jib Length: Adjustable from 25 to 55 meters, providing flexibility in reaching different areas of the construction site.
• Slewing Range: 360 degrees, enabling rotation and lifting in any direction.
• Hoisting Speed: 0-90 m/min
• Slewing Speed: 0-0.7 r/min

Features and Technologies

Safety Features

• Overload Protection System: Prevents the crane from lifting loads beyond its capacity.
• Anti-Collision System: Ensures safe operation by preventing collisions with other cranes or obstacles.
• Emergency Stop Buttons: Provides immediate shutdown in emergency situations.

Operational Efficiency

• High Operating Efficiency: Designed to handle heavy loads efficiently, making it a reliable choice for construction projects.
• Easy Installation and Dismantling: Facilitates efficient transportation and relocation to different construction sites.

Control and Mechanisms

• Automatic Controls: Ensures smooth and precise movements through automated systems.
• Variable Frequency Drives: Not explicitly mentioned, but common in similar cranes for smooth and controlled movements.

Applications and Use Cases

Applicable Industry

• Construction Works: Ideal for urban construction projects, high-rise buildings, and sites with space limitations.

Use Schemes

• While not detailed in this specific model, luffing jib tower cranes can be used in various schemes such as stationary, chassis weight, traveling chassis, and internal climbing configurations.

Maintenance and Support

Warranty and Service

• Core Component Warranty Period: 1 year
• Out-of-Warranty Service: Video technical support and online support available.
• Overseas Service Outlets: Available in countries like the UAE.

Additional Services

• Video Factory Inspection: Provided for quality assurance.
• Mechanical Test Report: Available to ensure the crane meets specifications.

Conclusion

The BQ GHD5522-10 luffing jib tower crane is a robust and efficient piece of equipment tailored for the demands of modern construction projects. Its combination of high lifting capacity, adjustable jib length, and advanced safety features make it an excellent choice for congested urban construction sites. The ease of installation, dismantling, and the availability of comprehensive support services further enhance its value in the construction industry.

China Manufacturer of Tower Cranes and Construction …

About Dahan Technology Co., Ltd.

Company Overview

Dahan Technology Co., Ltd. is a professional manufacturer specializing in the production of tower cranes and construction hoists. With a rich history, the company has manufactured and sold over 50,000 sets of these products, which have been exported to more than 50 countries and regions.

Product Range

Dahan Technology offers a diverse range of products categorized into four main series:

Top-kit Tower Cranes

• These cranes are designed for versatility and ease of installation.

Flat-top Tower Cranes

• Known for their flat top design, these cranes are ideal for urban construction sites where space is limited.

Luffing Jib Tower Cranes

• These cranes are specialized for use in confined spaces and are particularly useful in city centers.

Construction Hoists

• Designed for efficient vertical transportation of materials and personnel on construction sites.

All products are certified with ISO, CE, and other international standards, ensuring high quality and safety.

Workforce and R&D

• The company employs 2,300 skilled, talented, and dedicated workers.
• The R&D staff consists of approximately 100 intelligent and innovative individuals.
• Dahan Technology holds 28 national patents and has participated in the revision of the Chinese national tower crane standard (GB13752).

Materials and Suppliers

• The company sources materials from renowned suppliers such as Baosteel, Schneider, and others.
• All raw materials undergo rigorous testing, including appearance testing, tensile testing, and other serial tests to ensure quality.

Manufacturing Technology

• Dahan Technology was the first in the Chinese tower crane industry to introduce welding robots, currently operating over 100 sets.
• The company boasts the most advanced shot blasting and paint spraying lines in the world, with 12 lines in operation.
• Advanced processing equipment includes CNC plasma panel cutting machines, CNC profile sawing machines, CNC drilling machines, lathes, and milling machines.
• These machines provide high cutting performance with precision to less than 1mm.
• The use of 80% argon and 20% carbon dioxide as welding gas enhances welding quality and stability.

Quality Control

• Each main welding part of the machine undergoes flaw detection, paint film thickness detection, salt spray corrosion resistance tests, electronic system tests, and complete machine debugging before delivery.
• This rigorous quality control process ensures that the products delivered to clients are safe and reliable.

Service Transformation

• Dahan Technology is transitioning from a product supplier to a value-added service provider.
• The company is committed to creating the top Chinese brand of tower cranes and becoming a globally competitive and specialized tower crane manufacturer.

Global Reach and Client Commitment

• With a strong export presence, Dahan Technology aims to be the best choice for clients worldwide by providing high-quality products and reliable services.

OEM, ODM Passenger Hoist – HONGSHENG

Guide to HSH Tower Cranes

Introduction

HSH is a leading manufacturer of tower cranes, known for their high-quality products, competitive pricing, and excellent service. This guide provides an in-depth look at the various types of tower cranes offered by HSH, their technical specifications, and key features.

Types of Tower Cranes

Hammerhead Tower Cranes

Hammerhead tower cranes are one of the most common types offered by HSH.

16 Tons Hammerhead Tower Crane

• Maximum Load: 16 tons
• Jib Length: 70 meters
• Tip Load: 3 tons
• Mast Size: 2x2x3 meters
• Free Standing Height: 51.7 meters

25 Tons Hammerhead Tower Crane

• Maximum Load: 25 tons
• Boom Length: 70 meters
• Tip Load: 5.2 tons
• Mast Size: 2.5×2.5×5.95 meters

32 Tons Hammerhead Tower Crane

• Maximum Load: 32 tons
• Jib Length: 70 meters
• Tip Load: 11 tons
• Mast Size: 4x4x5.78 meters
• Free Standing Height: 90.8 meters

50 Tons Hammerhead Tower Crane

• Maximum Load: 50 tons
• Boom Length: 70 meters
• Tip Load: 9 tons
• Mast Size: 4x4x5.78 meters
• Free Standing Height: 89.4 meters

Fixed Type Hammerhead Tower Crane

• Electrical Components: Produced by professional electrical plants using advanced foreign technology, ensuring long life, few failures, simple maintenance, and reliable operation.
• General Specifications: Available in various load capacities, these cranes are known for their durability and efficiency.

External Climbing Hammerhead Tower Crane

• First Generation: HSH is the first generation of tower crane manufacturers in China.
• Load Moment: Offers a series of hammerhead tower cranes with load moments ranging from 63-900 ton-meters.
• Types: Includes stationary, traveling, and other variants.

Internal Climbing Tower Crane (Fixing Angle Tower Crane)

• Advantages: Large effective construction capacity, low manufacturing cost, low use cost, high safety, and small footprint of the tower crane component.
• Application: Ideal for projects where space is limited and safety is a priority.

Luffing Tower Cranes

Fixed Type Luffing Tower Crane

• Model: QTD 5020-10T
• Maximum Load: 10 tons
• Boom Length: 50 meters
• Tip Load: 2 tons
• Mast Size: 2x2x3 meters or 1.6×1.6×3 meters
• Free Standing Height: 41.1 meters

6 Tons Luffing Tower Crane

• Maximum Load: 6 tons
• Boom Length: 60 meters
• Tip Load: 1.3 tons
• Mast Size: 1.6×1.6×3 meters
• Free Standing Height: 44.8 meters

10 Tons Luffing Tower Crane

• Model: QTD 5020-10T
• Maximum Load: 10 tons
• Boom Length: 50 meters
• Tip Load: 2 tons
• Mast Size: 2x2x3 meters or 1.6×1.6×3 meters

Other Types of Tower Cranes

Topkit Tower Crane (QTZ6513)

• Maximum Load: 8 tons or 10 tons
• Jib Length: 65 meters
• Tip Load: 1.3 tons
• Mast Size: 2x2x3 meters
• Free Standing Height: 52 meters

Flat Top Tower Crane

• Maximum Load: 6 tons
• Boom Length: 60 meters
• Tip Load: 1.3 tons
• Mast Size: 1.6×1.6×3 meters
• Free Standing Height: 44.8 meters

Key Features and Advantages

Electrical Components

• Produced using advanced foreign technology, ensuring reliability and long life.
• Simple maintenance and few failures.

Safety and Efficiency

• High safety standards with features such as automatic fire protection and reliable electrical systems.
• Efficient operation with low manufacturing and use costs.

Versatility

• Available in various load capacities and types (stationary, traveling, internal climbing, etc.).
• Suitable for a wide range of construction projects.

Construction Capacity

• Large effective construction capacity, especially in internal climbing tower cranes.
• Ideal for projects with limited space and high safety requirements.

Conclusion

HSH tower cranes offer a comprehensive range of solutions for different construction needs. With their advanced technology, high safety standards, and efficient operation, these cranes are a reliable choice for any construction project. Whether you need a hammerhead, luffing, or flat top tower crane, HSH provides the necessary specifications and features to meet your requirements.

Frequently Asked Questions (FAQs)

What are the key steps in the work process of using a luffing jib crane in China?

The work process of using a luffing jib crane involves several critical steps. First, planning the lift is essential, which includes assessing the load, determining the most efficient and safe way to carry out the lift, and calculating the weight of the load, the distance it needs to be moved, and any obstacles. Next, the crane must be properly assembled and erected according to the manufacturer’s instructions, ensuring it is secured on a stable surface and the boom is correctly extended and aligned. During operation, the crane operator must carefully control the crane’s movements, including raising and lowering the load, swinging it from side to side, and moving it horizontally. The crane’s ability to luff, or adjust the angle of the boom while maintaining a level horizontal position, is a key feature that allows it to reach different heights and angles. Finally, the operator must carefully monitor the load at all times to ensure it is lifted and moved safely.

What are the common causes of tower crane accidents in China?

Tower crane accidents in China are often attributed to a combination of factors. Operator error and cranes lifting loads beyond their capacity are frequently cited, but there are deeper systemic issues. The shift from state-owned construction companies with skilled operators to private crane leasing companies that hire rural migrant workers without proper training has significantly contributed to the problem. Many of these workers are inexperienced, work long hours due to low pay, and often operate the crane alone, leading to fatigue and increased risk of accidents. Additionally, lax enforcement of safety regulations and increased competition among crane leasing companies have resulted in cost-cutting measures, such as inadequate maintenance, which can lead to structural cracks, loose bolts, and joint failures in the cranes.

How important is maintenance and inspection for luffing jib cranes in China?

Maintenance and inspection are crucial for the safe and efficient operation of luffing jib cranes in China. Upon arrival, the crane should undergo a thorough inspection to ensure it is in good working condition. Regular maintenance is necessary to prolong the lifespan of the crane and prevent accidents. This includes keeping maintenance and service records up to date, performing routine checks on critical components, and ensuring that all safety devices such as weight limiters, moment limiters, and slewing limiters are functioning correctly. Additionally, establishing a good relationship with the manufacturer or supplier for ongoing technical support and spare parts is essential for addressing any issues promptly.

What safety features are typically included in luffing jib tower cranes used in China?

Luffing jib tower cranes used in China are equipped with several safety features to ensure safe operation. These include weight lifting limiters, moment limiters, lift height limiters, radius limiters, and slewing limiters. Advanced control systems such as PLC control units and electronic control using fieldbus technology enhance reliability and reduce fault rates. Other safety devices include torque, weight, and range monitoring functions, as well as alarm and self-locking mechanisms. Physical safety features like rest platforms and guardrails are also integrated into the design. The use of variable frequency speed control and stable operation mechanisms further reduces the risk of accidents.

How do labor conditions and regulatory enforcement impact the safety of crane operations in China?

Labor conditions and regulatory enforcement play significant roles in the safety of crane operations in China. The construction industry has seen a shift towards hiring rural migrant workers who often lack proper training and are subjected to low pay and long working hours. This leads to operator fatigue and increased risk of accidents. Additionally, lax enforcement of safety regulations by local authorities has allowed cost-cutting practices by crane leasing companies, which can compromise the safety and maintenance of the cranes. There is a clear need for stronger regulatory oversight and more active involvement from trade unions to safeguard the interests of crane operators and ensure compliance with safety standards.