In the heart of China’s industrial landscape, overhead cranes stand as indispensable giants, orchestrating the efficient and safe movement of heavy loads across various industries, from manufacturing and construction to warehouses and port terminals. The operation of these cranes is not just a technical necessity but a critical component of ensuring workplace safety, boosting productivity, and maintaining operational efficiency.

This in-depth guide is designed to navigate you through the complexities and best practices of operating overhead cranes in China. Here, you will learn about the key benefits of using overhead cranes, including enhanced safety, increased productivity, and the versatility these machines offer through customizable attachments and advanced technological innovations.

We will delve into the stringent safety standards and training requirements that are essential for operators and maintenance personnel, as well as the importance of regular inspections to ensure the cranes are in optimal working condition. You will also gain insights into the opportunities and challenges of sourcing overhead cranes from China, including the cost-effectiveness, access to cutting-edge technology, and the

How to Operate Overhead Crane

Since the provided websites do not include the specific content from https://dafangcranez.com/how-to-operate-overhead-crane/, I will create a comprehensive guide based on the general best practices and detailed information gathered from the other sources.

Guide to Operating an Overhead Crane Safely and Efficiently

Introduction

Overhead cranes are powerful and essential pieces of equipment in industrial settings such as warehouses, assembly lines, and manufacturing facilities. They utilize overhead space to move heavy loads efficiently. However, their operation requires strict adherence to safety protocols and proper training to avoid accidents.

Pre-Operational Checks and Preparation

Before Lifting

• Load Inspection: Ensure the load is securely attached and does not exceed the crane’s load limits, whether the boom is extended or not. Check the hoisting mechanism to ensure it is in good condition[1][3][4].
• Equipment Inspection: Conduct daily inspections of the crane, including the wire rope, drum, block, and hook for any damage or abnormalities. Check the limit switches, brakes, and control systems for proper functionality[4].
• Safety Devices: Verify that all safety devices such as breakers, sound and light systems, and signal devices are fully functional and sensitive[2].

Operator Preparation

• Training and Certification: Ensure the operator is properly trained and certified. In the U.S., operators must meet OSHA requirements and obtain certification from the National Commission for the Certification of Crane Operators (CCO)[1][3].
• Familiarity with Controls: The operator should be well-versed with the crane’s controls, instructions, and warnings. They must understand the ASME B30.2 standards for overhead and gantry cranes[3].

During the Lift

Movement and Signaling

• Fluid Movement: Maintain fluid movement from hoist to placement. The operator should only respond to signals from the designated signal person unless an emergency stop signal is given[1][3][4].
• Clear Load Path: Ensure the load path is clear of any obstructions. Avoid sudden acceleration and deceleration of the load to prevent swinging[3][4].

Load Handling

• Weight Verification: Verify the weight of the load to ensure it is within the working load limit of the crane, hoist, and rigging components[3].
• Proper Attachment: Ensure the load, sling, or lifting device is properly seated in the hook and that the hook latch is closed if provided[3].
• Avoiding Hazards: Do not pass the load over people or allow personnel to ride on the load. Keep the crane runway clear during operation[1][2][4].

After the Lift

Securing the Load and Crane

• Load Placement: Set the load down safely and avoid leaving it suspended. Lift the load block and attachments above the highest movable obstruction when the crane is not in use[3][4].
• Crane Shutdown: Properly secure the crane when it is shut down. Open the main line disconnect device and switch off the power. Place the controllers in the off position and lock the cabin door[2][3].

Post-Operational Checks

• Remove Items: Remove any items from the hoisting mechanism and leave the hook raised to a mid-extension position in a safely designated area[1].
• Log Keeping: Maintain log books of operations, maintenance activities, and inspections to ensure ongoing safety and efficiency[5].

Safety and Maintenance

General Safety Practices

• Warning Devices: Activate warning devices before starting the crane and intermittently during travel to alert others of the crane’s movement[3][4].
• No Repair During Operation: Do not repair, refuel, or perform maintenance on the crane while it is powered on. If a fault occurs, stop the crane immediately[2].
• Grounding: Ensure the crane is reliably grounded to avoid electrical shocks. Use welding grounding methods if necessary[2].

Maintenance and Inspections

• Regular Inspections: Perform frequent and detailed inspections of the crane’s operating mechanisms, limit devices, control systems, brakes, and critical parts. Keep written records of these inspections[4].
• Adjustments and Repairs: Address any necessary adjustments or repairs promptly, including issues with wire ropes, hooks, and electrical contacts[4].

Operator Responsibilities

Training and Competence

• Comprehensive Training: Operators should undergo comprehensive training that includes an introduction to overhead cranes, their components, controls, safety measures, maintenance, and rigging basics[5].
• Certification Compliance: Ensure operators comply with national certification standards and adhere to the Code of Ethics and Substance Abuse Policy of the certifying body[1].

On-Site Responsibilities

• Signal Compliance: Respond to all signals from a lift director or designated signal person. Be responsible for the operations under the operator’s control[3][4].
• Safety Oversight: Watch over others’ work to ensure it meets safety and quality standards. Activate warning devices before starting the crane and during travel[5].

By following these guidelines, overhead crane operators can ensure safe, efficient, and compliant operation of these critical pieces of equipment.

Dongqi Crane: Overhead Crane Hoist Manufacturer and …

Overview of DQCRANES

Company Profile

DQCRANES, known as HENAN DONGQI MACHINERY CO., LTD, is a leading crane manufacturer and supplier based in China. The company was established using advanced European technology and is recognized as a top crane manufacturer in the country.

Manufacturing Capabilities

Factory and Facilities

• DQCRANES operates a large factory located in Dongqi Industry Park in Changyuan, Henan, known as the “Cradleland of Cranes.”
• The factory spans 240,000 square meters and employs over 3600 employees, including 500 technicians and more than 70 senior engineers[2].

Production Capacity

• The factory is equipped with over 2000 sets of crane production equipment.
• DQCRANES produces more than 10,000 cranes and hoists annually, with a comprehensive annual output value that has reached 15 billion RMB[2][3].

Advanced Technology and Equipment

• The manufacturing plant is highly automated and features advanced facilities from domestic and international brands.
• Equipment includes four guns air protection portal shaped weld, impeller blasting descaling machine, digital control plaint drill, hoist spray paint line, and various other precision machinery[2].

Research and Development

R&D Center

• DQCRANES has a dedicated Research & Development Center that provides advanced technology support.
• The center includes specialized design rooms for gantry cranes, bridge cranes, hoists, electric apparatus, and craft design, along with a testing room[2].

Technological Innovation

• The company is committed to technological innovation and development, cooperating with famous European machinery manufacturers such as Britain SZW, German NORD, and SIEMENS[3].

Product Range

Types of Cranes

• DQCRANES manufactures a variety of cranes, including:
• Overhead cranes (both single and double girder)
• Gantry cranes
• Jib cranes
• Port cranes and container cranes
• European-style electric hoists[3][4].

Customized Solutions

• The company offers customized crane services to meet the specific material handling requirements of various industries.
• Products are designed and manufactured strictly according to European standards to ensure high performance and quality[3][4].

Quality and Certifications

International Standards

• DQCRANES has passed ISO9001 international quality system certification, ISO14004 environment management system certification, and OHSA18001 occupational health and safety management system certification[3].

Quality Assurance

• The company emphasizes the importance of quality, with certified and skilled fabrication craftsmen, including welders and electricians who undergo continuous training to enhance their professional skills[2].

Global Reach

International Presence

• DQCRANES supplies cranes to various countries and regions, including South Africa, Malaysia, United Arab Emirates, Singapore, Canada, Saudi Arabia, Philippines, Australia, United States, Thailand, United Kingdom, Indonesia, Egypt, India, Brazil, Sweden, and Taiwan, among others[3].

Global Distribution

• The products of DQCRANES are distributed throughout Southeast Asia, East Europe, Middle East, Africa, and other areas, catering to a wide range of international clients[3].

Workforce and Craftsmanship

Skilled Workforce

• The company takes pride in its workforce, which includes masters in fields such as machining, electrical, steel fabrication, painting, and shipping/receiving.
• The experienced craftsmen work skillfully on advanced facilities to produce high-quality products[2].

Professional Development

• Many employees participate in various trainings to develop their professional skills, reflecting the company’s commitment to continuous improvement and excellence[2].

Conclusion

DQCRANES is a robust and innovative crane manufacturer that combines advanced European technology with a strong commitment to quality, innovation, and customer satisfaction. With a significant production capacity, a highly skilled workforce, and a global reach, DQCRANES stands out as a leading provider of customized crane solutions for various industries worldwide.

Overhead Crane Operation China Manufacturer Guide

Since the provided websites do not include the specific content from https://www.sourcifychina.com/overhead-crane-operation/, I will create a comprehensive guide based on the general best practices and detailed information from the other sources.

Guide to Overhead Crane Operation

Introduction

Overhead cranes are essential pieces of equipment in industrial settings, such as warehouses, assembly lines, and manufacturing facilities. They utilize overhead space to move heavy loads efficiently, reducing ground space usage. However, their operation involves significant risks, making proper training, maintenance, and safety protocols crucial.

Pre-Operation Checks and Preparation

Before Lifting

• Load Securing: Ensure the load is securely attached and does not exceed the crane’s load limits, whether the boom is extended or not[1][3][4].
• Hoisting Mechanism: Verify that the hoisting mechanism is in good condition and fit for the task.
• Inspections: Conduct daily and frequent inspections of the crane, including the wire rope, drum, block, and hook for any damage or abnormalities. Check for proper functionality of limit switches, brakes, and other critical components[4].

Operator Responsibilities

• Training and Certification: Operators must undergo training and obtain certification from a recognized body like the National Commission for the Certification of Crane Operators (CCO). This includes passing practical and written examinations[1][3].
• Focus and Attention: Operators should remain focused during operation, avoid distractions, and follow all safety instructions and signals[2][4].

During the Lift

Movement and Control

• Fluid Movement: Ensure the crane’s movement is fluid from hoist to placement. Avoid sudden acceleration or deceleration of the load[1][3][4].
• Signal Acknowledgement: Only acknowledge movement signals from the designated signal person unless an emergency stop signal is given[1][3].
• Load Path Clearance: Ensure the load path is clear of any obstructions and that the load does not swing excessively[1][3][4].

Safety Precautions

• No Riding on Loads: No personnel should ride on the load being lifted[1][2][4].
• Avoiding Overhead Passes: Do not pass the load over any site workers or personnel[1][2][4].
• Warning Devices: Activate warning devices before starting the crane and intermittently during travel[3][4].

After the Lift

Securing the Crane

• Parking the Crane: Park the crane at the designated parking line, raise the hook to a mid-extension position, and ensure no material is hanging from the hook[2][3].
• Power Off and Controllers: Place all controllers in the off position, switch off the power, and lock the cabin door[2][3].

Post-Operation Checks

• Load Placement: Ensure the load is placed safely and securely before leaving the crane.
• Crane Shutdown: Properly secure the crane when it is shut down, and open the main line disconnect device before leaving the crane cab[3][4].

Safety and Maintenance

Regular Inspections

• Daily Inspections: Conduct daily inspections of the crane, including checks on operating mechanisms, wire rope, drum, block, and hook[4].
• Frequent Inspections: Perform frequent inspections to ensure all safety devices, such as limit switches and overload limiters, are functional[2][4].

Maintenance and Repairs

• Component Checks: Regularly check and maintain critical components like brakes, control systems, and electrical contacts. Address any damage or wear promptly[4].
• Grounding: Ensure the crane is properly grounded to avoid electrical shocks, especially when the trolley rail is not welded to the main girder[2].

Training and Certification

Importance of Training

• Safety Enhancement: Training enhances safety on the worksite by ensuring operators are aware of procedures and protocols to avoid hazards[1][3][5].
• Career Advancement: Certified operators have better career opportunities and can advance their livelihoods[1].

Certification Process

• CCO Certification: Obtain certification from the National Commission for the Certification of Crane Operators (CCO) by passing practical and written examinations within 12 months[1][3].
• Age and Compliance: Be at least 18 years old and comply with CCO’s Code of Ethics and Substance Abuse Policy[1].

Conclusion

Operating an overhead crane safely and efficiently requires meticulous attention to detail, thorough training, and strict adherence to safety protocols. By following the guidelines outlined above, operators can minimize risks, ensure a safe working environment, and optimize the performance of the crane. Regular inspections, proper maintenance, and continuous training are key to maintaining a safe and competent worksite.

Professional Overhead Crane Manufacturers From China …

Overview of DGCRANE

Company Profile

DGCRANE, also known as Xinxiang Degong Machinery Co., Ltd, is a trusted professional overhead crane manufacturer based in Changnao Industrial Park, Changyuan County, Henan Province, China. This region is recognized as the largest crane manufacturing base in China.

Certifications and Quality

DGCRANE has obtained several prestigious certifications, including ISO 9001:2000, CE, and SGS. These certifications ensure that the company’s design and product quality align with international standards.

Global Presence

The company has a significant global presence, having exported cranes to numerous countries including Russia, Uzbekistan, Philippines, Bangladesh, Australia, Qatar, Tanzania, Singapore, Saudi Arabia, Peru, Brazil, and Nigeria. DGCRANE has also collaborated with prominent international companies such as the Italy-based IMF Group, the largest supplier of complete set foundry equipment worldwide.

Types of Cranes

Overhead Cranes (EOT Cranes)

• Description: These cranes travel along a bridge between two parallel runways supported by the structures of the factories themselves. The hoist and the trolley are placed on the bridge beam, allowing loads to be moved up and down as well as along the beam.
• Usage: Commonly used in various industrial settings such as factories, steel mills, and prefabricated board factories.
• Design: DGCRANE’s European type overhead cranes are independently developed and designed based on advanced European design and manufacturing technology, combined with the latest domestic standards. These cranes feature a three-in-one reducer (hard tooth surface reducer, frequency conversion brake motor), making them comparable to similar European products in terms of appearance and performance.

Gantry Cranes

• Description: These are heavy cranes typically used to load and unload heavy items on docks, in rail yards, and in factories.
• Usage: Ideal for heavy-duty applications where overhead cranes may not be feasible.
• Specifications: DGCRANE can produce gantry cranes in various specifications to meet different client needs.

Monorail Cranes and Jib Cranes

• Description: Monorail cranes are used for lifting and moving loads along a single beam, while jib cranes are mounted on a wall or floor and have a horizontal beam (jib) that can rotate.
• Usage: Often used in conjunction with electric hoists for more precise and flexible lifting operations.

Crane Components and Accessories

Electric Hoists

• Usage: Electric hoists are not typically used alone but are often mounted on single girder overhead cranes, monorail cranes, jib cranes, and single girder gantry cranes as the lifting part.
• Advice: When needing to hoist and move projects, selecting a proper crane rather than just a hoist is recommended.

Crane Wheels

• Manufacturer: DGCRANE also specializes in manufacturing crane wheels, catering to various crane types and industrial applications.
• Quality and Service: Known for their high-quality products, timely delivery, and satisfactory customer service.

Customization and Services

Custom Steel Buildings

• Offerings: Besides cranes, DGCRANE provides a one-stop shop for custom steel buildings tailored to different factory environments.
• Environmental Adaptability: Buildings can be designed to operate in temperatures ranging from -30 to 50 degrees Celsius and can meet explosion-proof requirements.

Voltage Customization

• Generators: DGCRANE can customize generators to meet different voltage requirements around the world, ensuring compatibility with local electrical standards.

Spare Parts and Maintenance

• Availability: The company is well-equipped with spare parts, which helps in compressing the production cycle, improving productivity, and enabling timely response in after-sales maintenance.

Crane Purchase and Installation Options

Complete Overhead Crane

• Description: A complete crane includes all necessary parts such as the trolley, cross girder, end trucks, and electrification systems. The crane is fully assembled and tested in the factory before being disassembled for shipping.
• Installation: Features an easy installation design, making the setup process simple and time-saving.

Component Overhead Crane

• Description: This option excludes the cross girder, which the customer needs to provide. DGCRANE provides complete drawings and instructions for local construction of the cross girder.
• Cost Savings: This option significantly reduces transport costs since the large steel structure (cross girder) is not included in the shipment.

Conclusion

DGCRANE is a comprehensive solution provider for all crane-related needs, offering a wide range of crane types, customization options, and reliable after-sales service. Their commitment to quality, international standards, and customer satisfaction makes them a trusted partner in the global crane manufacturing industry.

Overhead Crane Manufacturers and Suppliers

Since the provided search results do not include the specific content from the website https://www.mithoist.com/overhead-crane.html, I will create a comprehensive guide based on the general information about overhead cranes gathered from the other sources.

Guide to Overhead Cranes

Introduction

Overhead cranes are essential pieces of equipment in various industrial settings, including manufacturing, warehouses, and construction sites. They are designed to handle heavy loads efficiently, enhancing safety, productivity, and space utilization.

Types of Overhead Cranes

Bridge Cranes

• Construction: Consist of a bridge with two parallel runways connected by a traveling bridge girder. These runways are supported by fixed columns, and the bridge travels on these runways with end trucks on each side[1][2][5].
• Configurations:
• Single Girder vs. Double Girder: Single-girder cranes handle capacities up to 15 tons and limited spans, while double-girder cranes can sustain large loads over 15 tons across long spans[2][3].
• Top Running vs. Underhung: Top-running setups are best for heavy loads requiring extra support, while underhung configurations optimize space usage in production areas[1][2][5].
• Applications: Frequently used in indoor industrial environments, such as manufacturing facilities, warehouses, and shipyards. Ideal for lifting and moving heavy objects like engines or large metal components[1][2][3].

Gantry Cranes

• Construction: Supported by legs rather than runways, making them ideal for outdoor applications where columns cannot be installed. The trolley and hoist system traverse along a bridge supported by these legs[1][2][5].
• Features:
• Versatility: Available in adjustable and portable designs, suitable for both outdoor and indoor applications where lifting needs are infrequent[1][2][4].
• Customization: Can be customized to meet specific lifting requirements such as speed, capacity, reach, or height[3][5].
• Applications: Commonly used in shipyards, railyards, construction sites, and indoor areas like auto body shops or motor repair shops[1][2][4].

Monorail Cranes

• Construction: The trolley and hoist are connected to an I-beam, running along the bottom flange. These cranes typically move in a straight line but can be customized for specific applications[1][2][5].
• Applications: Ideal for production and assembly line environments. Often used in automated assembly line systems to enhance efficiency and precision[1][2].

Jib Cranes

• Construction: Consist of a horizontal arm (jib) mounted on a vertical mast with an electric hoist that can move along the jib. Can be floor-mounted, articulating, or wall-mounted[1][3][5].
• Features:
• Versatility: Offer 180- or 360-degree movement, making them suitable for areas with limited headroom and structural support[1][3][5].
• Space Efficiency: Can be used as supplements to regular traveling cranes and monorail tracks, and are ideal for bays and along the walls or sides of shops[1][3].
• Applications: Used in industrial settings for lifting and moving heavy objects, such as engines or large metal components. Also useful in warehouses for loading and unloading materials[1][3].

Workstation Cranes

• Construction: Designed for lightweight applications (up to 2 tons) and repetitive tasks. Available in various sizes and lifting capacities, and can be configured as over-hung systems or freestanding structures[1][2][5].
• Features:
• Ergonomics: Offer user-friendly and ergonomic designs to reduce worker fatigue and enhance precision in tasks[5].
• Customization: Can be tailored to meet specific workplace needs, improving safety, uptime, and productivity[1][5].
• Applications: Common in automotive manufacturing and other factories where precise and repetitive tasks are required[5].

Benefits of Overhead Cranes

Versatility

• Overhead cranes are adaptable for numerous industrial applications, making them versatile tools in various settings[4].

Safety

• These machines contain built-in safety controls and eliminate the injury risks associated with manually transporting heavy items[4].

Productivity

• Overhead cranes can move materials quickly and precisely, allowing for more efficiency and a throughput boost in production processes[4].

Space Optimization

• Thanks to their overhead operation, these cranes help facilities optimize their floor space, reducing clutter and enhancing workflow[4].

Protection

• Overhead cranes help reduce the risk of damage to raw materials and goods during transportation within the facility[4].

Choosing the Right Overhead Crane

Considerations

• Crane Class: Understand the crane duty classification to ensure you select a crane that meets your operational needs without unnecessary costs[1].
• Space Requirements: Consider the available space and headroom in your facility to choose between top-running, underhung, or other configurations[1][2][5].
• Budget: Evaluate the cost of the crane, including installation and maintenance fees, to ensure it fits within your budget[3].

Application-Specific Needs

• Load Capacity: Determine the maximum load the crane needs to handle and choose a crane type that can sustain that load[2][3].
• Frequency of Use: Consider how frequently the crane will be used and select a crane with the appropriate duty cycle[3].

By understanding the different types of overhead cranes and their specific applications, you can make an informed decision to enhance your facility’s efficiency, safety, and productivity.

Overhead Crane

Overview of Eurocrane Group’s Overhead Cranes

Introduction

Eurocrane Group specializes in manufacturing and providing high-quality overhead cranes that are designed to meet various industrial needs. Their products are known for unparalleled performance, lightweight design, maximum safety, and high operating efficiency.

Types of Overhead Cranes

Single Girder Overhead Crane

• Description: The single girder overhead crane features a single bridge girder that supports the trolley and hoist. This design is compact and efficient, making it ideal for a wide range of applications.
• Key Features:
• Lightweight and compact structure
• High operating efficiency
• Maximum safety and reliability
• Ergonomic operator cabin for real-time monitoring and comfortable operation
• Dependable safety devices

Double Girder Overhead Crane

• Description: Double girder overhead cranes are designed with two bridge girders, offering higher load capacities and more versatile applications.
• Key Features:
• Compact design with light deadweight and small wheel pressure
• Even load distribution, saving investment in facilities
• Safe and reliable operation
• Available in various load capacities, including up to 100 tons

Design and Construction

Structural Integrity

• The calculations of crane structures are in accordance with the FEM booklet 3 – Design Stresses in the Structure. This ensures that the girder deflection is carefully calculated with the rated load and trolley at the center of the span.

Materials and Manufacturing

• Cranes are made using high-strength materials to ensure durability and efficiency.
• The manufacturing process involves advanced techniques such as seamless cutting of the main beam, automated welding, and laser cutting technology, which are energy-efficient and environmentally friendly.

Operational Features

Speed and Control

• Cranes are equipped with frequency conversion technology, allowing for slow operation under heavy loads and quick operation under light loads. The speed regulation range is typically 1:10.
• Variable speed control for both trolley and crane travel ensures smooth operation and reduces impact on the factory.

Safety and Reliability

• Advanced PLC automatic detection and a user-friendly human-machine interface monitor the crane’s performance, safety, and operating conditions.
• Equipped with safety devices such as crane traveling limit switches, weight overload protection devices, and lifting height limit devices.

Operator Cabin

• The operator cabin is designed with an ergonomic layout, providing a comfortable and safe operating environment.
• Real-time monitoring of the operating status associated with the crane, lifting hook, and lifted goods is possible from the cabin.

Applications

Industrial Uses

• Eurocrane Group’s overhead cranes are widely applicable in various industries, including:
• Machinery manufacturing
• Assembly
• Petrochemicals
• Warehousing and logistics
• Power construction
• Papermaking
• Railways
• Food industry
• Chemical industry

Custom Solutions

• The company offers customer-specific handling systems tailored to meet the specific needs and deadlines of clients.
• Experienced engineering professionals are available to take on the overall responsibility of planning a lift, ensuring a bespoke turnkey package.

Maintenance and Services

Quality Assurance

• Eurocrane Group has a robust product quality assurance system, a comprehensive quality inspection department, and qualified quality control personnel.
• The company uses over 100 various inspection and testing instruments to ensure the quality of the cranes in every aspect.

Service Network

• Professional services include installation, commissioning, service, maintenance, repairs, and spare parts.
• A strong service and maintenance network spans across strategic locations, ensuring that machines are always functioning in optimal condition.

By choosing Eurocrane Group, customers can expect high-quality, safe, and reliable overhead cranes that are designed to enhance material handling efficiency and meet the diverse needs of various industries.

China Overhead Crane Manufacturer

Given that the specific website content from https://www.sinokocrane.com/b-46/Overhead-Crane.html is not provided, I will create a comprehensive guide based on the general information available about overhead cranes, using the structure and details from the other sources.

Guide to Overhead Cranes

Introduction to Overhead Cranes

Overhead cranes are essential material handling systems used in various industrial settings, including factories, warehouses, and workshops. These cranes are designed to lift, move, and place heavy loads efficiently and safely.

Types of Overhead Cranes

Single Girder Overhead Cranes

Characteristics

• Capacity: Typically ranges from 1 to 32 tons[1][2][3].
• Span: Usually between 7.5 to 31.5 meters[1][2][3].
• Lifting Height: Customizable, but generally up to 30 meters[1][2][3].
• Coverage Area: Square or rectangular, with spans up to 31.5 meters and unlimited length[1][2].

Applications

• Economical and suitable for general lifting applications.
• Available in different styles, such as Chinese and European designs[1][2].

Double Girder Overhead Cranes

Characteristics

• Capacity: Ranges from 5 to 550 tons, depending on the model[1][2][3].
• Span: Typically between 10.5 to 31.5 meters[1][2][3].
• Lifting Height: Customizable, but generally up to 24 meters[1][2][3].
• Coverage Area: Square or rectangular, with spans up to 31.5 meters and unlimited length[1][2].

Applications

• Suitable for heavy-duty applications, such as in metal or steel mills and factories.
• Various models include explosion-proof, magnetic, and ladle cranes for specific tasks[1][2][3].

Components of Overhead Cranes

Bridge Girder

• Single Girder: A single beam that supports the trolley and hoist[5].
• Double Girder: Two beams that support the trolley and hoist, providing greater lifting capacity and height[5].

Trolley and Hoist

• The trolley travels along the bridge girder, carrying the hoist which lifts the load[5].

End Trucks

• These are the units at the ends of the bridge girder that travel on the runway beams[5].

Runway Beams

• These beams support the end trucks and are either free-standing or attached to the building structure[5].

Configurations of Overhead Cranes

Top Running Cranes

• The bridge girder travels on rails mounted on top of the runway beams, offering greater lifting height and easier installation and service[4][5].

Under Running Cranes

• The bridge girder travels on the bottom flange of the runway beam, supported by the roof structure of the building[5].

Gantry Cranes

• These cranes have legs on both sides of the span and can travel on the ground or on embedded rails, eliminating the need for overhead runways[5].

Monorail Systems

• Used for loads that must follow a predetermined path, with the trolley hoist mounted to the bottom flange of a single beam[5].

Specialized Overhead Cranes

Explosion-Proof Overhead Cranes

• Designed with explosion-proof parts and components, suitable for hazardous environments[1][3].

Magnetic Overhead Cranes

• Equipped with electromagnetic chucks or beam spreaders, commonly used in metal or steel mills[1][3].

Ladle Overhead Cranes

• Specialized for handling hot metal liquids, often with dual braking systems for enhanced safety[1][3].

Low Headroom Overhead Cranes

• Designed to operate in spaces with limited headroom, often used in workshops and factories with low ceilings[1][2].

Technical Parameters

Lifting Capacity

• Ranges from a few tons to several hundred tons, depending on the crane model[1][2][3].

Lifting Speed

• Varies from 0.8 to 11.5 meters per minute, depending on the crane and its application[2][3].

Trolley Speed

• Typically ranges from 2 to 40 meters per minute[2][3].

Crane Speed

• Generally ranges from 3 to 75 meters per minute[2][3].

Work Duty

• Classified under different duty classes (e.g., A3 to A7), indicating the crane’s usage and load cycle[2][3].

Customization and Installation

Customized Specifications

• Many manufacturers offer customized crane designs to meet specific user requirements, including adjustable spans and heights[1][3].

Installation and Service

• Cranes can be installed as free-standing or attached to the building structure, with considerations for longitudinal and lateral bracing[4][5].

Safety and Maintenance

Safety Features

• Include dual braking systems, explosion-proof components, and advanced control systems to ensure safe operation[1][3].

Maintenance

• Regular maintenance is crucial to extend the crane’s lifespan and ensure continuous safe operation. This includes checking electrical and mechanical components, lubrication, and structural integrity[3].

Conclusion

Overhead cranes are versatile and critical components in industrial settings, offering a range of capacities, configurations, and specialized features to meet various material handling needs. Understanding the different types, components, and technical parameters of overhead cranes is essential for selecting and maintaining the right crane for your specific application.

Top 10 Overhead Crane Manufacturer In China | WeiHuaCrane

Top 10 Overhead Crane Manufacturers in China: An In-Depth Guide

Introduction

China has emerged as a major player in the global market for overhead cranes, driven by its large manufacturing capacity and relatively low labor costs. Here, we will explore the top 10 overhead crane manufacturers in China, highlighting their history, products, and contributions to the industry.

1. Henan Weihua Heavy Machinery Co., Ltd.

Overview

• Established in 1989 and headquartered in Anyang City, Henan Province.
• Weihua Group is a leading machinery manufacturing enterprise in China.
• Engaged in the design, research and development, production, and sales of lifting machinery, construction machinery, special vehicles, and other products.

Key Achievements

• Leads in the production and sales of overhead cranes and gantry cranes in China.
• Achieved a sales revenue of 12.2 billion yuan in 2018.

2. Zoomlion Heavy Industry Group Co., Ltd.

Overview

• Founded in 1993 and headquartered in Changsha, Hunan Province.
• Specializes in the R&D, manufacturing, and sales of bridge cranes, tower cranes, and other products.
• Equipped with advanced production equipment and technology.

Key Achievements

• Provides high-quality products and services to customers.
• Significant presence in the global market with sales growth of 58% to $5.5 billion in 2020.

3. Langfang Hongqi Heavy Machinery Co., Ltd.

Overview

• Established in 1958 and headquartered in Langfang City, Hebei Province.
• Known for its rich experience and technology in bridge crane manufacturing.
• Product quality and performance are highly recognized and praised in China.

Key Achievements

• Long history and continuous innovation in crane manufacturing.
• Widely recognized for its product quality and performance.

4. Henan Weineng Heavy Industry Machinery Co., Ltd.

Overview

• Founded in 2004 and headquartered in Zhengzhou City, Henan Province.
• Engaged in the R&D, manufacturing, and sales of bridge cranes, gantry cranes, tower cranes, and other products.
• Equipped with advanced production equipment and technology.

Key Achievements

• Committed to providing high-quality products and services.
• Advanced production capabilities and strong market presence.

5. Shanghai Electric Group Co., Ltd.

Overview

• Founded in 1880 and one of the oldest construction machinery manufacturers in China.
• Headquartered in Shanghai and engaged in the R&D, manufacturing, and sales of bridge cranes, tower cranes, and other products.
• Rich history and extensive experience in the industry.

Key Achievements

• Long-standing reputation for product quality and performance.
• Significant contributions to China’s construction machinery industry.

6. Harbin Electric Group Co., Ltd.

Overview

• Founded in 1898 and headquartered in Harbin, Heilongjiang Province.
• Specializes in the R&D, manufacturing, and sales of bridge cranes, gantry cranes, and other products.
• Known for its long history and rich experience.

Key Achievements

• Leading position in product quality and performance in China.
• Extensive experience and continuous innovation.

7. Henan Qiaoqiao Heavy Industry Co., Ltd.

Overview

• Established in 2003 and headquartered in Nanyang City, Henan Province.
• Engaged in the R&D, manufacturing, and sales of bridge cranes, gantry cranes, and other products.
• Professional R&D team and advanced production equipment.

Key Achievements

• Committed to providing high-quality products and services.
• Strong market presence and recognition for product quality.

8. Hebei Shuangma Heavy Industry Machinery Manufacturing Co., Ltd.

Overview

• Founded in 2002 and headquartered in Xingtai City, Hebei Province.
• Specializes in the R&D, manufacturing, and sales of bridge cranes, gantry cranes, and other products.
• Skilled team and efficient production equipment.

Key Achievements

• Widely recognized product quality and performance.
• Strong market presence and customer satisfaction.

Product Range and Services

Types of Cranes

• These manufacturers offer a wide range of overhead crane models, including:
• Single girder cranes
• Double girder cranes
• Gantry cranes
• Jib cranes
• Customized solutions for specific industries or applications.

Additional Services

• Installation services for their products.
• Maintenance and repair services to ensure ongoing performance and safety.

Manufacturing Process

Stages Involved

• The manufacturing process for overhead cranes typically involves several stages:
• Design: Initial planning and design of the crane based on customer requirements.
• Fabrication: Production of the crane components.
• Assembly: Putting together the various components to form the complete crane.
• Testing: Quality control and testing to ensure the crane meets safety and performance standards.

Conclusion

China’s top overhead crane manufacturers have established themselves as leaders in the global market through their commitment to quality, innovation, and customer service. These companies not only produce a wide range of crane models but also offer comprehensive services to support their products, ensuring they meet the diverse needs of various industries.

Kino Cranes: Overhead Gantry Crane Supplier

Overview of Henan Kino Cranes Co., Ltd.

Company History and Profile

Henan Kino Cranes Co., Ltd., commonly known as Kinocranes, is a modern manufacturing enterprise founded in 2008. The company specializes in the research, development, manufacturing, sales, installation, and service of various crane and lifting equipment.

Corporate Structure and Capabilities

Employee and Technical Team

Kinocranes boasts a workforce of over 1200 employees, including more than 180 engineers and technicians. This strong technical team is a cornerstone of the company’s ability to produce high-quality products.

Factory and Production Facilities

The factory spans an area of about 280 acres, with a registered capital of 108.80 million RMB and a total capital of 220 million RMB. The facility is equipped with over 210 sets of advanced manufacturing and testing equipment, ensuring the production of high-quality cranes.

Global Presence

Kinocranes has established a significant global presence, with products exported to over 50 countries. The company also has four overseas offices, facilitating international cooperation and customer support.

Products and Solutions

Main Product Categories

Kinocranes offers a wide range of products, including:
– Overhead Cranes: Designed to meet various industrial needs, these cranes are available in both China and European standards.
– Gantry Cranes: Used for container handling, these cranes are known for their robust design and high performance.
– Jib Cranes: Suitable for workshops and warehouses, these cranes offer flexible lifting solutions.
– Electric Hoists: Used for lifting and moving heavy loads, these hoists are integrated into various crane systems.
– Crane Trolleys: Part of the crane system, these trolleys ensure smooth and efficient movement of loads.
– Magnets and Grabs: Specialized lifting equipment for handling metal and other materials.
– Special Design Cranes: Customized cranes for specific industries such as steel mills, foundries, and explosion-proof environments.

Product Features and Advantages

• Slim Size and Light Weight: Cranes designed with European standard techniques are known for their compact size and light weight, enhancing maintenance-free performance.
• Advanced Configurations: Features include galvanized high-strength steel wire ropes, disc brakes, hard tooth surface reducers, and PLC lifting limit switches.
• High Performance and Safety: The cranes are optimized for continuous working efficiency and safety, with advanced configurations such as hardened reducers and ductile iron rope guides.

Industry Applications

Steel Industry

Kinocranes provides lifting solutions specifically designed for the steel industry, focusing on safety, robust design, and high performance. These cranes are tailored to meet the hazards and challenges of metal production.

Waste to Energy and Biomass Industry

The company offers semi-automatic control grab cranes for garbage handling, designed to meet the needs of municipal solid waste incineration plants. These cranes are engineered to enhance safety, efficiency, and effectiveness in waste treatment processes.

General Manufacturing and Other Industries

Kinocranes’ products are also used in various other industries, including paper making, general manufacturing, and more, providing mature products and solutions tailored to specific needs.

Quality Assurance and Customization

Quality Components

Kinocranes uses components from reputed brands such as ABB, SEW, Siemens, FAG, SKF, and NSK. Each component has CE/ISO certificates, ensuring reliable quality.

Custom Lifting Solutions

The company can meet clients’ specific requirements, including the use of designated motors, reducers, bearings, and other components. Kinocranes has extensive experience in non-standard customization.

After-Sales Service

On-Site Installation

Kinocranes provides an experienced overseas installation team to ensure quick and efficient installation and commissioning of equipment at customer sites.

Crane Maintenance and Spare Parts

The company offers comprehensive after-sales services, including crane maintenance, spare parts supply, and other support to ensure the longevity and optimal performance of the equipment.

Technology and Innovation

Advanced Manufacturing Equipment

Kinocranes is equipped with state-of-the-art manufacturing equipment, including laser beam cutting machines, CNC plasma cutting systems, box beam forming production lines, and automatic submerged arc welding systems.

Variable Frequency Drive Technology

The cranes are designed using variable frequency drive technology, which enhances their performance, efficiency, and maintenance-free operation.

Conclusion

Henan Kino Cranes Co., Ltd. is a leading manufacturer of crane and lifting equipment, known for its integrated services, advanced technology, and commitment to quality and customer satisfaction. With a strong global presence and a wide range of products tailored to various industries, Kinocranes stands as a reliable partner for industrial lifting solutions.

20 Ton Double Girder Overhead Crane

Guide to 20 Ton Double Girder Overhead Cranes

Overview

Double girder overhead cranes are robust and versatile lifting solutions widely used in various industrial settings. Here is a comprehensive guide to the 20 ton double girder overhead crane, highlighting its key features, advantages, and applications.

Key Parameters

Load Capacity

• The load capacity of double girder overhead cranes ranges from 5 tons to 500 tons, with the 20 ton model being a common choice for heavy-duty applications.

Crane Span

• The crane span can vary from 4.5 meters to 31.5 meters, and can be customized to fit specific site requirements.

Lifting Height

• The lifting height ranges from 3 meters to 30 meters, also customizable based on the user’s needs.

Hoist Unit

• The hoist unit can be either a wire rope hoist or a chain hoist, offering flexibility in lifting operations.

Working Duty

• The working duty of these cranes is classified from A4 to A8, indicating their suitability for various levels of operational intensity.

Power Source

• The power source can be tailored to match the user’s existing power supply infrastructure.

Design Advantages

Beehive Beam Design

• The first beehive beam design of double girder overhead cranes offers light weight, large loading capacity, and strong wind-resistant performance.

Unique Steel Pin Connection

• This design feature ensures a firm and reliable connection while reducing assembly time.

Flexible Supporting Leg

• The flexible supporting leg allows for easy transportation and installation, as the site can be divided into single pieces.

Minimum Installed Capacity

• This feature addresses the challenge of power consumption during field construction by optimizing the installed capacity.

Differences Between Single and Double Girder Overhead Cranes

Different Structure

• Single Girder: Simple structure, lighter weight, easier installation, maintenance, and disassembly.
• Double Girder: Complex structure, heavier weight, more complicated installation and maintenance.

Different Production Costs

• Single Girder: Lower production cost due to shorter span and less material consumption.
• Double Girder: Higher production cost due to larger span, higher material consumption, and advanced technical content.

Different Operation Modes

• Single Girder: Often operated from the ground, can be controlled by remote or manual means.
• Double Girder: Requires workers to control the crane, typically more complex operation.

Mechanical Properties

• Single Girder: Lower stability, lower working level.
• Double Girder: Higher stability, heavier rated lifting weight, higher working level.

Operating Environment

• Single Girder: Suitable for short spans, lighter lifting weights, and smaller construction sites.
• Double Girder: Suitable for long spans, heavier lifting, and wider spaces.

Applications

Double girder overhead cranes are versatile and can be used in various industrial settings, including:

Manufacturing and Assembly Lines

• For the movement of heavy components and equipment.

Material Handling in Construction Sites

• For lifting and transporting heavy materials and equipment.

Loading and Unloading Shipping Containers

• For efficient handling of containers in ports and warehouses.

Transporting Heavy Machinery and Equipment

• For moving heavy machinery within industrial facilities.

Maintenance and Repair Operations

• For lifting and positioning parts during maintenance and repair tasks.

Technical Parameters

Load Capacity

• Ranges from 5 tons to 500 tons, with the 20 ton model being a standard option.

Span

• From 4.5 meters to 31.5 meters, customizable.

Lifting Height

• From 3 meters to 30 meters, customizable.

Hoist Unit

• Wire rope hoist or chain hoist.

Lifting Speed

• Varies depending on the model, but typically ranges from 0.18 to 11.5 meters per minute.

Trolley Running Speed

• Typically ranges from 20 to 40 meters per minute.

Crane Running Speed

• Typically ranges from 20 to 75 meters per minute.

Work Duty

• Classified from A4 to A8.

Conclusion

The 20 ton double girder overhead crane is a robust and reliable lifting solution designed for heavy-duty applications across various industries. Its advanced design features, such as the beehive beam and unique steel pin connection, enhance its performance and ease of use. Understanding the differences between single and double girder cranes is crucial for selecting the right equipment for your specific needs. With its wide range of applications and customizable parameters, the double girder overhead crane is an indispensable tool in modern industrial settings.

Frequently Asked Questions (FAQs)

What are the pre-operation steps for safely operating an overhead crane?

Before operating an overhead crane, several critical pre-operation steps must be taken to ensure safety and efficiency. The operator must conduct a thorough pre-operation inspection to verify that the crane is in good working condition. This includes checking for any signs of damage or wear on components such as the hoist, ropes, and hooks. The operator also needs to review the load, determining its weight and dimensions to ensure the crane can handle it safely. Additionally, any special requirements or precautions for the specific load, such as handling hazardous materials or fragile items, must be considered. Clear communication protocols should be established with other workers involved in the operation to coordinate movements safely.

How should the load be lifted and moved using an overhead crane?

Lifting and moving a load with an overhead crane involves several key steps. First, the operator must attach the appropriate lifting device, such as hooks, slings, or specialized attachments, to the load, ensuring that the connections are secure and the load is balanced. During the lift, the operator must maintain stable operation, avoiding any sudden movements that could cause the load to swing or slip. Clear communication with other workers is crucial, using hand signals or radio communication to coordinate the movement. The operator must also be aware of the crane’s capacity and limitations, avoiding excessive loads or maneuvers that could cause instability. Accurate positioning of the load at its destination is essential before lowering and detaching the lifting device.

What are the post-operation procedures for overhead crane maintenance?

After the load has been successfully moved and the operation is complete, several post-operation procedures are necessary to maintain the crane’s optimal working condition. A post-operation inspection should be conducted to check for any damage or issues that may have occurred during the operation. Any necessary maintenance or repairs should be reported and addressed promptly. Regular inspections by certified professionals are mandatory to ensure the crane remains in proper working condition. This includes checking critical components such as wire ropes, hooks, and safety devices to identify potential hazards and address them before they become serious issues.

What training and certification are required for overhead crane operators?

To operate an overhead crane safely and effectively, operators must receive proper training and certification. This training includes understanding the various controls and mechanisms of the crane, as well as learning how to assess loads, calculate their weight, and determine the appropriate lifting methods. Operators must be familiar with the manufacturer’s instructions, load limits, and safety protocols. Ongoing training and regular refresher courses are essential to keep operators up to date with the latest safety practices and regulations. Certification programs ensure that operators have the necessary knowledge and skills to handle the crane safely and efficiently.

What safety standards and inspections are necessary for overhead crane operation?

Ensuring the safe operation of an overhead crane involves adherence to strict safety standards and regular inspections. All overhead cranes must comply with internationally recognized safety standards such as ISO 9001 and CE certification. Suppliers must provide documentation certifying compliance with these standards before any purchase is made. Regular inspections, including annual loading tests and no-load, static load, and movement tests, are required to check the crane’s manufacturing and installation quality and guarantee safety during operation. The crane’s electrical equipment, brakes, and lubricating points must also be inspected to ensure they are in good working condition. These inspections help identify and address any potential hazards promptly, ensuring ongoing compliance and safe operation.