In the dynamic landscape of construction and heavy machinery, the derrick crane stands as a pivotal component, particularly in China, where innovative manufacturing and technological advancements have propelled the industry to new heights. This in-depth guide delves into the intricacies of derrick crane design, a topic of paramount importance for engineers, contractors, and industry professionals.

Derrick cranes, characterized by their fixed tower design and robust lifting capabilities, are essential for large-scale construction projects, offering precision and reliability in lifting heavy loads. China, with its robust manufacturing sector and global leaders like SANY Group and HONGSHENG, has become a hub for the production and innovation of these cranes.

In this guide, readers can expect to learn about the fundamental components of derrick cranes, including the mast section, jib, and slewing platform, as well as the advanced technologies and materials used in their construction. You will gain insights into the manufacturing processes, quality control measures, and safety standards that ensure these cr

Derrick Crane

Derrick Crane Overview

Definition and Purpose

A derrick crane is a type of heavy-duty crane often used in specialized applications such as docking facilities, marine construction, and heavy lifting tasks. These cranes are designed to handle large and heavy loads with precision and reliability.

Key Features of Derrick Cranes

Capacity and Lifting Capabilities

• Derrick cranes can have substantial lifting capacities. For example, the Weihua Derrick Crane 660t has a capacity of 2 * 330t, making it suitable for lifting large and heavy objects like LPG tanks[4].

Structural Components

• The crane typically consists of a platform/base, a lifting arm, and an A-frame mast. These components are designed to provide stability and support for the heavy loads being lifted.

Luffing Range

• The luffing range of a derrick crane can vary, but it is typically within a specific range. For the Weihua Derrick Crane 660t, the luffing range is from 21.5m to 54m[4].

Arm Length

• The arm or boom length of a derrick crane can be significant. The Weihua Derrick Crane 660t has an arm length of up to 70m, allowing for extensive reach and versatility in lifting operations[4].

Applications of Derrick Cranes

Marine Construction

• Derrick cranes are often employed in marine construction projects, including offshore and dockside operations. They are used for tasks such as lifting heavy equipment, constructing marine structures, and handling large cargo[4].

Docking Facilities

• These cranes are commonly mounted on vessels or at dockside facilities to manage the loading and unloading of heavy cargo, including containers and large machinery.

Heavy Lifting Tasks

• Derrick cranes are also used in various industrial settings where heavy lifting is required, such as in the energy sector for handling large equipment and in port operations for managing heavy cargo.

Technical Specifications and Design

Materials and Construction

• Derrick cranes are built with high-quality materials to ensure durability and strength. The steel materials used are carefully selected based on technical specifications, including chemical composition and physical properties.

Precision Engineering

• The components of a derrick crane, such as the lifting arm and A-frame mast, are precision-engineered to ensure accurate dimensions and smooth operation. This includes machining after welding to maintain precise structural integrity.

Control Systems

• Modern derrick cranes are equipped with advanced control systems, including AI frequency conversion control, which allows for accurate positioning and millimeter-level speed operation. These systems also include features such as automatic compensation for trolley shaking and backup systems for brake failures[1].

Safety Features

Inclinometer and Alarm System

• Derrick cranes are integrated with inclinometers that activate alarms in the event of obstacles blocking the cargo, ensuring safe operation and preventing accidents.

Speed Limitation

• The control system automatically limits the maximum speed based on the cargo weight, ensuring safe and controlled lifting operations.

Backup Systems

• Advanced derrick cranes often include backup systems for critical components like brakes, ensuring continuous safe operation even in the event of a failure.

Conclusion

Derrick cranes are powerful and versatile lifting solutions designed for heavy-duty applications. With their robust construction, advanced control systems, and extensive safety features, they are ideal for a variety of tasks in marine construction, docking facilities, and other industrial settings. Understanding the key features, applications, and technical specifications of derrick cranes is crucial for selecting the right equipment for your specific needs.

DCB30-18 Derrick Crane for Engineering

Guide to the BQ Derrick Crane DCB30-12

Overview of the BQ Derrick Crane DCB30-12

The BQ Derrick Crane DCB30-12 is a specialized lifting machine designed for heavy-duty construction projects. Here are the key aspects of this crane:

Model and Brand

• Model No.: DCB30-12
• Brand: BQ

Characteristics and Application

• Characteristic: Tower Crane
• Applicable Industry: Construction Works
• Type: Derrick Crane, which is a fixed crane assembled and disassembled at the site of use.

Technical Specifications

Lifting Capacity and Range

• Maximum Lifting Capacity: 30 tons (though the specific model mentioned has a max load of 12 tons at the tip)[1][2][4].
• Tip Load: 1.35 tons
• Working Range: 30 meters

Mechanical Mechanisms

• Hoisting Mechanism: 45LVF
• Luffing Mechanism: 15DVF
• Slewing Mechanism: 5.5SVF

Power and Electrical

• Power Supply: 380V 50Hz / 440V 60Hz
• Power: 80kVA

Design and Construction

Structure and Components

• The crane features a long, fixed-length tower and is characterized by its mast and jib fastened to a slewing platform. The mechanism and electrical parts are also placed on this platform.
• The crane is made from high-quality steel materials, primarily Q345B/Q235B, ensuring durability and reliability[3].

Compact Design

• The DCB30-12 has a compact design that allows for easy transportation and setup, saving time and effort.

Operational Efficiency and Safety

High Operating Efficiency

• The crane is designed with high operating efficiency in mind, ensuring smooth and controlled operations.
• It features durable construction and high-quality components, guaranteeing long-lasting performance even in harsh working conditions.

Safety Features

• The crane is designed with precision and safety in mind, ensuring safe operations on the worksite.

Warranty and Support

Warranty Period

• Core Component Warranty Period: 1 Year
• Warranty Period: 1 Year for the entire crane
• Core Components: Motor, Gear

Service Support

• Out-of-warranty Service: Online Support
• Local Services: Available in UAE
• Showroom Location: Sample rooms available in UAE

Additional Information

Packaging and Transportation

• Package Type: 2 pcs of 40 feet HQ
• Transportation: Available via Ocean and Air
• Port: Dalian

Payment and Incoterms

• Payment Type: L/C, T/T
• Incoterm: FOB, CFR, CIF, EXW, FCA
• Minimum Order: 1 Set/Sets

Conclusion

The BQ Derrick Crane DCB30-12 is a reliable and efficient solution for heavy-duty construction projects. With its high lifting capacity, durable construction, and high operating efficiency, it is an ideal choice for professionals in the construction industry. The crane’s compact design, easy setup, and comprehensive warranty and support make it a valuable asset for any construction site.

Construction Derrick Crane 12t

BQ Derrick Crane DCB30-12: An In-Depth Guide

Overview of the BQ Derrick Crane DCB30-12

The BQ Derrick Crane DCB30-12 is a specialized lifting machine designed for heavy-duty construction projects. Here are the key aspects of this crane:

Model and Brand

• Model No.: DCB30-12
• Brand: BQ

Characteristics and Application

• Characteristic: Tower Crane
• Applicable Industry: Construction Works
• Type: Derrick Crane, which is a fixed crane assembled and disassembled at the work site.

Technical Specifications

Lifting Capacity and Range

• Maximum Lifting Capacity: 12 tons (note: some sources incorrectly state 30 tons, but the correct maximum load is 12 tons)[1][2][4].
• Tip Load: 1.35 tons
• Working Range: 30 meters

Mechanical Mechanisms

• Hoisting Mechanism: 45LVF
• Luffing Mechanism: 15DVF
• Slewing Mechanism: 5.5SVF

Power and Electrical

• Power Supply: 380V 50Hz / 440V 60Hz
• Power: 80kVA

Design and Construction

Structure and Components

• The crane features a long, fixed-length tower and is characterized by its stationary foundation.
• The mast and jib are fastened to a slewing platform, which also houses the mechanism and electrical parts.
• The crane is made from high-quality steel materials, primarily Q345B/Q235B, ensuring durability and reliability[3].

Compact Design

• The DCB30-12 has a compact design that allows for easy transportation and setup, saving time and effort.

Operational Efficiency and Safety

High Operating Efficiency

• The crane is designed with high operating efficiency in mind, ensuring smooth and controlled operations.
• It features durable construction and high-quality components, guaranteeing long-lasting performance even in harsh working conditions.

Safety Features

• The crane is designed with precision and safety in mind, ensuring safe operations on the worksite.

Warranty and Support

Warranty Period

• Core Component Warranty Period: 1 year
• Warranty Period: 1 year for the entire crane

Out-of-Warranty Service

• Out-of-warranty Service: Online support available

Local Services

• Overseas Service Outlets: Available in the UAE
• Showroom Location: Sample rooms available in the UAE

Additional Information

Packaging and Transportation

• Package Type: 2 pcs of 40 feet HQ
• Transportation: Available via ocean or air
• Port: Dalian

Payment and Incoterms

• Payment Type: L/C, T/T
• Incoterms: FOB, CFR, CIF, EXW, FCA
• Minimum Order: 1 Set/Sets

Conclusion

The BQ Derrick Crane DCB30-12 is a reliable and efficient solution for heavy-duty construction projects. With its high lifting capacity, durable construction, and high operating efficiency, it is an ideal choice for professionals in the construction industry. The crane’s compact design, easy setup, and comprehensive support services make it a valuable asset for any worksite.

Derrick Crane, China Manufacturer, Factory.

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

Guide to Derrick Cranes

Introduction

Derrick cranes are specialized lifting equipment used in various industries, including construction, oil and gas, and port operations. They are known for their versatility, flexibility, and ability to handle heavy loads in confined or complex environments.

Types of Derrick Cranes

A-Frame and Stiff Leg Derricks

• These are common types of derrick cranes characterized by their A-frame or stiff leg configurations. They are often used in docking facilities, mounted on vessels or dockside, and are capable of lifting heavy loads such as LPG tanks[4].
• A-frame derricks use a bipod or tripod structure for stability, while stiff leg derricks employ a single or double leg setup[5].

Hallen and Velle Derricks

• Hallen derricks are known for their use of outriggers and a D-frame to maintain control over the guys. They are suitable for lifting large items like containers, logs, and steel rails. These derricks are efficient and can be set up quickly but have a limited working range[5].
• Velle derricks are similar to Hallen derricks but do not use outriggers. Instead, they utilize a T-shaped yoke at the top of the boom to manage the guys[5].

Key Features and Specifications

Lift Capacity

• Derrick cranes can have lift capacities ranging from 4 to 16 tons for general construction and industrial use. More heavy-duty models, such as those used in docking facilities, can have capacities up to 660 tons (2*330 tons)[2][3][4].

Working Range

• The maximum working range of derrick cranes varies. For example, models like the DC 4038-16T have a maximum working range of 40 meters, while others like the DC 1830-4T have a range of 18 meters[2][3].

Jib Length and Tip Load

• The jib length of derrick cranes can extend up to 50 meters or more, with tip loads ranging from 2 to 3.8 tons depending on the model[1][3].

Power Supply and Control Systems

• Derrick cranes can operate on various power supply specifications such as 220V/60Hz, 380V/50Hz, and 440V/60Hz. They often feature advanced control systems including VFD (Variable Frequency Drive) and ordinary speed control[3].

Industry Applications

Construction

• Derrick cranes are widely used in construction for tasks such as tower crane dismantling, roof-top lifting in congested sites, and handling heavy loads in high-rise buildings and bridge pylon projects[1][2].

Industrial and Pre-Cast

• They are also utilized in industrial settings for lifting and moving heavy equipment and pre-cast components[2].

Port and Oil & Gas

• In port operations, derrick cranes are used for loading and unloading cargo, including heavy containers and machinery. In the oil and gas sector, they are employed for lifting equipment and materials in offshore and onshore projects[2][4].

Safety and Maintenance

Paint and Coating

• Derrick cranes are often coated with UV-resistant and weather-resistant polyurethane paint to ensure durability. All ladders and platforms are typically hot-dip galvanized for added protection[3].

Certifications

• These cranes usually come with certifications such as CE, ISO, GOST, and CU-TR, ensuring compliance with international safety standards[3].

Warranty and After-Sales Service

• Many manufacturers offer localized warranty services and provide spare parts with their cranes. After-sales services include assembly, maintenance, and disassembly support[3].

Conclusion

Derrick cranes are essential tools in various industries due to their flexibility, high lift capacities, and ability to operate in diverse environments. Understanding the different types, specifications, and applications of derrick cranes can help users select the right equipment for their specific needs and ensure safe and efficient operations.

High Quality Derrick Crane

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

Derrick Cranes: A Comprehensive Guide

Introduction

Derrick cranes are a type of heavy-duty lifting equipment commonly used in construction, shipbuilding, and other industrial settings. They are known for their high lifting capacities and versatility.

Components and Structure

Main Components

• Mast: The vertical column that supports the crane.
• Stiff Legs: The diagonal or horizontal beams that provide stability to the mast.
• Boom: The horizontal beam that extends from the mast to lift loads.
• Hoisting Mechanism: The system that lifts and lowers the load.
• Mounting Points: Typically three points – the base of the mast and the bottom of the stiff legs – which secure the crane to a platform or foundation[5].

Specifications and Capabilities

Lifting Capacity

Derrick cranes are designed to handle heavy loads, often ranging from several tons to over 100 tons, depending on the model and configuration[4].

Lifting Height and Reach

These cranes can achieve significant lifting heights, often up to 60 meters or more, and have a substantial reach to cover large work areas[4].

Lifting Speed

High-speed designs can achieve lifting speeds of up to 30 feet per minute with full load, significantly enhancing productivity[1].

Dimensions

The overall dimensions of a derrick crane include the height of the mast, the length of the boom, and the span of the stiff legs. These dimensions vary based on the specific model and application[1].

Safety and Maintenance

Regulations and Training

Crane operation must adhere to strict safety regulations, including those set by local and international standards. Operators must receive proper training and certification to minimize accidents and injuries[2].

Inspections

Daily inspections by qualified personnel and periodic inspections by regulatory professionals are crucial to ensure the crane is in top condition. This includes checking for mechanical issues and ensuring all components are functioning correctly[2].

Safe Lifting Plans

A detailed lifting plan must be created for each operation, considering factors such as the weight of the load, sling selection, and potential hazards on the site[2].

Communication

Clear communication between the crane operator, spotter, and crew is essential. This can be achieved through standardized hand signals or radios[2].

Maintenance

Regular maintenance schedules help identify and address potential problems before they become major issues. This includes checking and replacing worn-out parts and ensuring all safety features are intact[2].

Operational Practices

Crane Safety Factor

The crane safety factor is calculated by dividing the crane’s capacity by the weight of the load. A higher safety factor indicates a greater buffer zone against overloading and potential accidents. Consulting a qualified professional is recommended to determine a safe working load and corresponding safety factor[2].

Load Handling

Use certified slings with sufficient weight capacity, and never exceed the crane’s rated capacity. Ensure the load is properly secured and balanced to prevent accidents[2].

Work Area Safety

Designate a safe area around the crane to prohibit unauthorized personnel during operation. Ensure the work area is clear of obstacles and hazards that could interfere with the crane’s operation[2].

Installation and Service

Installation

Derrick cranes are typically mounted on a platform or foundation. The installation process must be carried out by qualified professionals to ensure stability and safety[5].

Repairs and Maintenance

Regular service, inspections, and load testing are essential for maintaining the crane’s performance and safety. Services may include 24/7 standby for breakdowns, refurbishments, and modifications of the crane and its components[3].

Conclusion

Derrick cranes are powerful and versatile lifting solutions that require careful planning, operation, and maintenance to ensure safety and efficiency. By adhering to strict safety protocols, conducting regular inspections, and maintaining the crane properly, users can maximize the benefits of these heavy-duty machines while minimizing risks.

Derrick Crane Suppliers & Exporters in China – TradeFord.com

Given the absence of direct access to the specific website you mentioned, the following guide is compiled based on the detailed information available from similar sources on derrick cranes.

Guide to Derrick Cranes

Introduction

Derrick cranes are versatile and powerful lifting machines used in various industries, including construction, industrial, pre-cast, port, and oil & gas sectors. They are known for their flexibility and efficiency in handling a range of tasks, particularly in congested or hard-to-reach areas.

Types and Applications

Construction

• Derrick cranes are often used for tower crane dismantling and roof-top lifting in construction sites. They are ideal for projects requiring precise and safe lifting operations in confined spaces[2].

Industrial and Pre-Cast

• These cranes are also utilized in industrial settings for heavy lifting and in pre-cast concrete construction for handling large structural parts.

Port and Oil & Gas

• In port facilities, derrick cranes are used for loading and unloading heavy cargo. In the oil & gas sector, they are employed for lifting equipment and materials in both onshore and offshore operations[2].

Technical Specifications

General Specifications

• Derrick cranes come in various capacities, typically ranging from 4 to 16 tons.
• Key specifications include:
• Jib Length: Can range from 18 meters to 40 meters.
• Maximum Load: Varies from 4 tons to 16 tons.
• Tip Load: The load capacity at the tip of the jib, e.g., 2.3 tons for a 10-ton crane[2][3].

Example Models

• DC1830 – 4T: 18 meters jib length, 4 tons maximum load, 3 tons tip load.
• DC3023 – 10T: 30 meters jib length, 10 tons maximum load, 2.3 tons tip load.
• DC4038 – 16T: 40 meters jib length, 16 tons maximum load, 3.8 tons tip load[2][3].

Construction and Materials

Steel Materials

• High-quality steel materials such as Q235/Q355 are used, ensuring strict adherence to technical specifications and chemical composition requirements[1].

Manufacturing Process

• Cold Drawn Seamless Steel Tube: Used for enhanced strength and durability.
• Machine Chamfered Edges: Ensure welding consistency and quality.
• Pin Hole Boring: Limits roughness to less than 3.5, ensuring smooth contact surfaces and even force distribution[1].

Control and Operation

Control Systems

• AI Frequency Conversion Control: Enables precise positioning according to programmed height and radius.
• Millimeter-Level Speed Operation: Controls hoist, trolley, and slewing for precise hoisting of large structural parts.
• Intelligent Control System: Compensates for trolley shaking and automatically corrects it. Also includes a brake failure backup system and automatic speed limitation based on cargo weight[1].

Safety Features

• Inclinometer: Activates an alarm in the event of obstacles blocking the cargo.
• Automated Safety Systems: Ensure safe operation by limiting maximum speed according to cargo weight and compensating for any operational anomalies[1].

Power Supply and Electrical Systems

Power Supply Specifications

• Derrick cranes can operate on various power supplies: 220V/60Hz, 380V/55Hz, 400V/50Hz, and 440V/60Hz[3].

Electric Control System

• VFD (Variable Frequency Drive) Control: Allows for efficient and precise control of the crane’s movements.

Additional Features

Paint and Coatings

• UV-Resistant and Weather-Resistant Polyurethane Paint: Ensures durability and protection against environmental elements.
• Hot-Dip Galvanized Ladders and Platforms: Provides corrosion resistance and safety[3].

Certifications and Warranty

• CE, ISO, GOST, CU-TR Certifications: Ensures compliance with international standards.
• Localized Warranty Service: Typically provided for 16 months, along with free spare parts[3].

Maintenance and Service

Factory Inspection

• Manufacturers often welcome factory inspections to ensure quality and satisfaction before delivery.
• Turnkey Solutions: Many providers offer comprehensive services from factory to after-sales, including transportation, import customs clearance, assembly, and disassembly[3].

Conclusion

Derrick cranes are highly versatile and essential tools in various industries, offering a range of capacities and features tailored to specific needs. Their advanced control systems, high-quality materials, and comprehensive safety features make them ideal for demanding lifting tasks. Understanding the technical specifications, applications, and additional features of derrick cranes can help in selecting the right equipment for your project requirements.

China Customized derrick crane Factory Quotes

Given that the specific website http://www.towercranesupply.com/product-tag/derrick+crane is not accessible in the provided search results, the following guide is compiled based on the general information about derrick cranes from the available sources.

Guide to Derrick Cranes

Introduction

Derrick cranes are specialized lifting apparatuses widely used in construction, maritime, and industrial settings for their versatility and stability in heavy lifting tasks.

Key Components

• Vertical Stationary Mast: The most identifiable feature of a derrick crane is its vertical stationary mast extending from a base. This mast provides the structural support necessary for lifting operations[5].
• Moveable Boom: Attached to the mast, the boom is equipped with cables and pulleys/sheaves, allowing for vertical and horizontal movement of loads[5].
• Guyed Wires or Braces: Often, derrick cranes are stabilized by guyed wires or braces to enhance stability and ensure safe operation[5].

Types of Derrick Cranes

Derrick cranes come in various configurations to suit different applications:
– A-Leg Derrick: Characterized by its A-shaped support structure.
– Basket Derrick: Known for its basket-like support at the top of the mast.
– Guy Derrick: Uses multiple guy wires for stabilization.
– Stiffleg Derrick: Features a stiff leg for additional support and stability[3][4].

Operational Capabilities

• Luffing and Slewing: Derrick cranes can both luff (move a load vertically) and slew (rotate the boom), making them highly versatile for tasks such as moving materials between platforms or sides of a building[3].
• Range of Motion: The ability to pivot allows derrick cranes to operate with a wide range of motion, which is particularly useful in confined or complex work environments[3].

Applications

Derrick cranes are used in various settings:
– Construction Sites: Commonly seen in construction for lifting heavy building materials.
– Maritime and Docking Facilities: Mounted on vessels or dockside, these cranes are used for lifting heavy cargo such as LPG tanks[2][3].
– Industrial Areas: Employed for heavy lifting and material transport in industrial environments.

Safety and Stability

• Four Support Anchors: Many derrick cranes have four anchored supports, making them steadier than other types of cranes[3].
• Warning Systems: It is advisable to equip derrick cranes with high proximity alert warning systems to enhance safety, especially when operating near high voltage power lines or other hazards[3].

Maintenance and Regulations

• ASME Standards: Derrick cranes are subject to standards and regulations outlined by ASME B30.6, which provide guidance on construction, installation, operation, inspection, testing, and maintenance[5].
• Regular Inspection: Regular inspections and maintenance are crucial to ensure the safe and efficient operation of derrick cranes.

Additional Features

• Electric Control System: Modern derrick cranes often come with advanced electric control systems, including VFD (Variable Frequency Drive) and ordinary speed control[1].
• Paint and Coating: The equipment is typically coated with UV-resistant and weather-resistant polyurethane paint, and all ladders and platforms are hot-dip galvanized for durability[1].

Service and Support

• Turnkey Solutions: Many manufacturers offer turnkey solutions that include factory inspection, transportation, import customs clearance, assembly, after-sales service, and disassembly[1].
• Localized Warranty: Some providers offer localized warranty services for extended periods, such as 16 months, along with free spare parts[1].

By understanding these aspects of derrick cranes, users can better appreciate their capabilities, applications, and the importance of proper maintenance and safety measures.

Derrick Crane TD2530-8

Derrick Crane TD2530-8: A Comprehensive Guide

Introduction

The Derrick Crane TD2530-8 is a specialized lifting machine designed for specific tasks in the construction industry, particularly for dismantling inner climbing tower cranes. Here is a detailed guide to its features, applications, and operational aspects.

Key Specifications

Maximum Load

• The Derrick Crane TD2530-8 has a maximum lifting capacity of 8 tons[1].

Jib Length

• The jib length of the TD2530-8 is 25 meters[1].

Tip Load

• The tip load, which is the load at the end of the jib, is 3.0 tons[1].

Applications

Dismantling Inner Climbing Tower Cranes

• The primary use of the Derrick Crane TD2530-8 is to dismantle inner climbing tower cranes once they have completed their job. This process involves sending the derrick crane to the rooftop of the building to perform the dismantling, which is why it is also referred to as a rooftop crane[1][5].

Design and Characteristics

Fixed Crane

• Derrick cranes, including the TD2530-8, are typically fixed cranes. They are assembled and disassembled at the location where they are used[3].

Long, Fixed Length Tower

• These cranes are characterized by their long, fixed length tower, which provides stability and the necessary height for their operations[3].

Operational Considerations

Assembly and Disassembly

• The crane is assembled and disassembled on-site, which is crucial for its role in dismantling other cranes at high elevations[1][5].

Rooftop Deployment

• The crane is transported to the rooftop of the building to perform its tasks, making it essential for projects where access to high areas is required[1][5].

Manufacturer and Support

Manufacturer

• The Derrick Crane TD2530-8 is manufactured by SYM Hoist & Tower Crane Equipment Co., Ltd., a professional manufacturer based in China with over 20 years of experience[1].

Spare Parts and Support

• SYM Hoist & Tower Crane Equipment Co., Ltd. provides 100% original spare parts and offers comprehensive support from pre-sales to after-sales processes[1].

Additional Information

Range of Derrick Cranes

• The manufacturer offers a full range of derrick cranes with capacities from 4 to 24 tons, catering to various construction needs[1].

Inquiry Process

• For inquiries, it is recommended to provide the quantity and model of the crane to facilitate a prompt response[1].

By understanding these aspects, users can make informed decisions about the use and procurement of the Derrick Crane TD2530-8 for their construction projects.

China Mobile Derrick Crane Manufacturer, Exporter

Since the provided websites do not include the specific content from the URL you mentioned, I will create a comprehensive guide based on the general information about derrick cranes gathered from the other sources.

Derrick Cranes: A Comprehensive Guide

Introduction

Derrick cranes are specialized cranes designed for specific tasks, particularly in the dismantling of tower cranes, rooftop lifting, and maintenance work at great heights. They are known for their versatility, lightweight design, and ease of assembly and disassembly.

Types and Models of Derrick Cranes

Capacity and Specifications

Derrick cranes come in various capacities to suit different project needs:
– Capacities range from 4 to 16 tons, with models such as the DC 1830 – 4T, DC 2121 – 6T, DC 3023 – 10T, and DC 4038 – 16T[1][4].
– The SDH100 model by Sáez Cranes has a maximum load capacity of 15 tonnes and can lift 1,900 kg at the tip (36m)[2].

Key Features

• Lightweight and Flexible Design: Derrick cranes are designed to be lightweight and flexible, making them ideal for congested construction sites and high-rise buildings[1][2].
• Ease of Assembly and Disassembly: These cranes break down into small components, allowing for easy transportation and assembly on site. For example, the Liebherr 200 DR 5-10 derrick crane components have maximum dimensions of 2.2m x 1.1m x 1.1m and a maximum weight of 1,000kg per package[3].
• Hydraulic and Electrical Systems: Some models, like the SDH100, feature hydraulic power-winches and electronic control systems with variable-frequency drives (VFD) for precise control[2][4].

Industry Applications

Construction

• Tower Crane Dismantling: Derrick cranes are primarily used for dismantling tower cranes at great heights where conventional mobile cranes cannot reach[2][3].
• Rooftop Lifting: They are also used for lifting materials and equipment onto rooftops in high-rise buildings[1][3].

Industrial and Pre-Cast

• Heavy Lifting: Derrick cranes can handle heavy loads in industrial settings, such as lifting heavy parts during maintenance or construction of high structures like bridge pylons or telecommunication towers[3].

Port and Oil & Gas

• Maintenance and Lifting: They are used in port and oil & gas industries for maintenance work and lifting operations in areas that are difficult to access with standard cranes[1].

Technical Specifications

Jib Length and Working Range

• Derrick cranes have varying jib lengths, such as 18m, 21m, 30m, and 40m, with corresponding maximum working ranges and tip loads[1][4].

Hoist Mechanism and Configurations

• Models like the SDH100 offer working configurations in I FALL, II FALLS, and III FALLS, allowing for different load capacities and lifting speeds[2].

Power and Control Systems

• These cranes often feature robust power systems, including 37 kW (50HP) hoist mechanisms and electronic cabinets with user-friendly HMI screens for monitoring and configuration[2].

Safety and Maintenance

Safety Features

• Derrick cranes are equipped with safety features such as anemometers, rotary encoders, and reinforced seals to ensure safe operation in various weather conditions[2].
• They also include valves for air venting and oil leaks, as well as main-valve and circuit protection against impacts[2].

Maintenance and Service

• Regular maintenance is crucial, and many manufacturers offer localized warranty services and spare parts support. For example, some providers offer a 16-month warranty and free spare parts[4].

Assembly, Disassembly, and Transportation

Ease of Assembly

• Derrick cranes are designed to be easily assembled and disassembled. They can be mounted on various bases, including rooftops, small towers, or custom steel grillage[3].

Transportation

• The lightweight and compact design of derrick crane components allows for easy transportation to the site, even in areas with limited access[2][3].

Conclusion

Derrick cranes are indispensable tools in modern construction and maintenance projects, offering a combination of versatility, safety, and efficiency. Their ability to operate in congested and hard-to-reach areas makes them a valuable asset for any project requiring precise and reliable lifting solutions. Understanding the specifications, applications, and maintenance requirements of derrick cranes is essential for optimizing their use and ensuring safe and efficient operations.

6 Tons Derrick Crane for Sale

6 Tons Derrick Crane: An In-Depth Guide

Overview

The 6 Tons Derrick Crane is a specialized piece of equipment widely used in the construction industry, particularly for dismantling tower cranes in modern high-rise building projects. Here is a comprehensive guide to its features, applications, and technical parameters.

Key Applications

• Dismantling Tower Cranes: The derrick crane is primarily used to dismantle inner climbing tower cranes and works in conjunction with truck cranes in limited working conditions.
• Heavy Lifting: It is designed to handle heavy, high, and large radius loads, making it an essential tool for various construction tasks.

Technical Parameters

General Specifications

• Max. Load Capacity: 6 tons
• Jib Length: Up to 24 meters
• Tip Load: 3 tons at the maximum jib length of 24 meters[3].

Hoisting Mechanism

• Hoisting Speed:
• 2-fall: 0-40 m/min
• 4-fall: 0-20 m/min
• Rope Capacity: 3 meters (frequency control motor)
• Motor Power: 22 kW for hoisting and luffing, 6 kW for slewing[3].

Luffing and Slewing Mechanisms

• Luffing Speed: ≤ 3.0 m/min (frequency control)
• Slewing Speed: 0-0.7 r/min (frequency control)[3].

Power Supply

• Voltage: 380V/50HZ or 440V/60HZ
• Total Power: 63 KVA[3].

Working Range and Load Capacities

• Jib Length Variations:
• 8.2-15.16 meters
• 18 meters
• 21 meters
• 24 meters
• Load Capacities at Different Jib Lengths:
• At 24 meters: 6 tons (full load), 4.64 tons (mid-range), 3.6 tons (tip load)
• At 21 meters: 6 tons (full load), 4.69 tons (mid-range), 3.6 tons (tip load)
• At 18 meters: 6 tons (full load), 4.6 tons (mid-range), 3 tons (tip load)
• At 15 meters: 6 tons (full load)[3].

Operational Efficiency and Safety

Advanced Control System

• The crane is equipped with an advanced control system that allows for precise and smooth operation, ensuring safety and efficiency.
• Features include frequency control motors for hoisting, luffing, and slewing, which enhance operational precision and safety[3].

Safety Features

• Load Moment Indicator (LMI) Package: Though not standard, it can be optioned to include anti-2-block, anemometer, and load sensing for enhanced safety.
• Swing Limit Switches: To prevent over-swinging and ensure stable operation.
• Mechanical Boom Angle Indicator: For accurate boom positioning[3].

Construction and Durability

Lattice Construction

• The crane is built with lattice construction for the boom, mast, sill, and leg sections, ensuring strength and durability.
• Sheaves with Machined Rope Grooves: Equipped with sealed anti-friction bearings for smooth and reliable operation[3].

Ease of Transportation and Assembly

Modular Design

• The crane can be transported to the job site in sections and assembled on-site, making it suitable for projects with limited access or space constraints.
• This modular design facilitates easier transportation and quicker setup times[3].

Environmental and Operational Conditions

Temperature Range

• The crane can operate in temperatures ranging from -20°C to +40°C, with optional cold temperature packages available for operation down to -40°C[3].

Wind Speed

• The maximum working wind speed is 20 m/s, ensuring stable operation in various weather conditions[3].

Conclusion

The 6 Tons Derrick Crane is a versatile and powerful tool in the construction industry, particularly for dismantling tower cranes and handling heavy loads. Its advanced control system, durable construction, and modular design make it an efficient and safe choice for a variety of construction projects. Understanding its technical parameters and operational capabilities is crucial for optimizing its use and ensuring maximum safety and efficiency on the job site.

Frequently Asked Questions (FAQs)

What are the primary applications of derrick cranes in China?

Derrick cranes in China are primarily used in various heavy-duty lifting and construction applications. They are often employed in docking facilities, either mounted on vessels or located dockside, to handle large and heavy loads such as LPG tanks. These cranes are also utilized in construction projects, particularly for lifting and placing heavy materials and equipment. Their versatility makes them essential in industries that require the movement of substantial weights.

What are the key components of a derrick crane?

A derrick crane typically consists of several key components. These include a platform or base, a lifting arm, and an A-frame mast. The platform or base provides the stability and support necessary for the crane’s operations. The lifting arm, which can be adjusted in length, is responsible for lifting and moving the loads. The A-frame mast is the structural element that supports the lifting arm and ensures the stability of the crane during operation.

How do derrick cranes vary in terms of lifting capacity and reach?

Derrick cranes in China can vary significantly in terms of their lifting capacity and reach. For example, some derrick cranes have a lifting capacity of up to 660 tons, with a luffing range of 21.5m to 54m and an arm length of up to 70 meters. Smaller versions, such as the DC1540 baby derrick crane, have a much lower lifting capacity, typically around 1 ton, and are used for more precise and lighter lifting tasks. The range of capacities and reaches makes derrick cranes suitable for a wide array of applications.

What safety considerations are important for derrick crane design and operation?

Safety is a critical aspect of derrick crane design and operation. Given the massive size and heavy loads these cranes handle, they are inherently dangerous if not properly managed. Key safety considerations include ensuring the structural integrity of the crane, regular maintenance to prevent mechanical failures, and adherence to strict operational guidelines. Operators must also undergo comprehensive training to handle the crane safely and efficiently. Additionally, compliance with industry standards and regulations is essential to minimize the risk of accidents.

How do Chinese manufacturers ensure the quality and reliability of derrick cranes?

Chinese manufacturers ensure the quality and reliability of derrick cranes through several measures. Many manufacturers, such as HSH and Weihua, have modern assembly lines and adhere to international quality standards like ISO 9001. These manufacturers also conduct rigorous testing and inspection processes to ensure that the cranes meet the required specifications and safety standards. Furthermore, they often have audited supplier status and secured trading practices, which add an extra layer of assurance regarding the quality of the components and the final product. This commitment to quality helps in maintaining the reliability and performance of the derrick cranes over their operational lifespan.