50 ton crane Safety Certifications
To operate a 50-ton crane, safety certifications ensure that the crane is compliant with relevant regulations and that operators are trained to handle the equipment safely. Here are key certifications and standards:
1. OSHA Compliance (Occupational Safety and Health Administration):
– Ensures workplace safety and health regulations are met.
– Specific standards for crane operation under OSHA’s 29 CFR 1910 regulations.
2. NCCCO (National Commission for the Certification of Crane Operators):
– Provides certification for crane operators.
– Ensures operators are skilled and knowledgeable.
3. ANSI/ASME Standards:
– ASME B30.5: Mobile and locomotive cranes.
– ASME B30.3: Tower cranes.
– These standards cover design, inspection, maintenance, and operator qualifications.
4. ISO Certification:
– ISO 9927-1: Cranes—Inspection.
– ISO 4306-1: Vocabulary (cranes and lifting appliances).
– Ensures international standard compliance.
5. Crane Inspector Certification:
– Inspectors should be certified to ensure cranes are safe and operational according to standards, like the CCAA (Crane Certification Association of America).
6. Local/State Certifications:
– Some states or local governments may have additional requirements for crane operation, such as state-specific operator licenses.
7. Maintenance and Inspection Logs:
– Regularly updated to ensure safety checks and maintenance are documented and up-to-date.
8. Manufacturer Certifications:
– Compliance with the manufacturer’s recommendations and safety guidelines.
By adhering to these certifications and standards, operational safety and regulatory compliance for 50-ton cranes can be effectively maintained.
List Reference Technical Parameters of “50 ton crane”
A 50-ton crane is a versatile lifting machine typically employed in construction, manufacturing, and logistical operations. Below are its critical technical parameters:
1. Lifting Capacity: Max weight of 50 tons, applicable to the crane’s maximum load-bearing capacity.
2. Boom Length: Often extends from 30 to 150 feet, depending on the crane model, and can be made of telescopic or lattice structures.
3. Jib Length: Auxiliary jib can extend several feet beyond the main boom, often between 25 to 60 feet.
4. Height: Maximum lifting height can reach up to 150-200 feet, depending on boom and jib configuration.
5. Outreach/Radius: Maximum outreach, or working radius, can range from 80 to 150 feet.
6. Rotational Range: Full 360-degree rotation capability for optimal maneuverability on the job site.
7. Counterweight: Attached counterweights range from 10 to 20 tons to provide stability during lifting operations.
8. Hoist Speed: Typically ranges between 10 to 20 meters per minute, adjustable based on lifted load and precision required.
9. Travel Speed: Mobile cranes can travel at speeds of 30-40 mph (50-65 km/h), depending on local regulations and road conditions.
10. Power Source: Usually powered by diesel engines with an output ranging from 200 to 500 HP, ensuring operational efficiency.
11. Operational Controls: Advanced cranes feature electronic controls and feedback systems for precise movements and safety.
12. Weight: The overall weight of the crane, including counterweights, can vary but generally around 30-50 tons.
13. Stabilizers/Outriggers: Extendable outriggers for stability, crucial when operating on uneven terrain.
14. Setup Time: Can range from a few hours to a full day, depending on site conditions and crane type.
15. Safety Systems: Modern cranes are equipped with load moment indicators, anti-two block systems, and swing limiters.
These technical parameters provide a broad overview of a 50-ton crane’s capabilities and design features, giving insight into its operational efficiency and safety considerations.
List Product features of “50 ton crane”
A 50-ton crane is a heavy-duty piece of equipment used primarily in construction, manufacturing, shipping, and other industries requiring the lifting and moving of large loads. Here are some key features of a 50-ton crane:
1. Lifting Capacity: Capable of lifting loads up to 50 tons, making it suitable for heavy lifting tasks.
2. Boom Length: Typically features a telescopic boom with a variable length, often extending from 30 to 200 feet, providing versatile reach capabilities.
3. Rotation: 360-degree rotation capability, allowing for expansive range of motion and flexibility in operations.
4. Mobility: Available in different types such as truck-mounted, crawler, and all-terrain cranes, offering varied mobility options suited to different environments.
5. Hoisting Speed: Equipped with adjustable hoisting speeds for precise control during lifting and lowering operations.
6. Control Systems: Modern cranes come with advanced electronic control systems, which include load sensors, safety features, and often remote control operation for enhanced safety and precision.
7. Outriggers: Stabilizing outriggers to ensure the crane remains steady and balanced during operations.
8. Safety Features: Includes overload protection systems, emergency stop functions, anti-collision systems, and fail-safe brakes to enhance operational safety.
9. Engine Power: Typically powered by robust diesel engines designed to handle heavy workloads without compromising efficiency and performance.
10. Cab and Comfort: Operator cab usually equipped with ergonomic seating, climate control, and advanced monitoring systems for ease of use and comfort during long operations.
11. Hydraulic System: Advanced hydraulic systems provide smooth and powerful performance, enabling precise movements and reliable operation under heavy loads.
12. Transportation: Certain models are designed to be easily disassembled and transported, ensuring flexibility in different project locations.
13. Customization: Optionally customized with attachments like lattice beams or specialized hooks to adapt to specific tasks or industry requirements.
These features collectively ensure that a 50-ton crane is a versatile, powerful, and safe machine for heavy lifting tasks across various industries.
List Various Types of “50 ton crane”
Certainly! Here are various types of “50-ton cranes” used in different applications:
1. Mobile Crane
– Truck-Mounted Crane: A crane mounted on a truck chassis, offering mobility and flexibility for various construction and industrial tasks.
– Rough Terrain Crane: Designed for off-road applications, these cranes are equipped with heavy-duty tires and all-wheel drive.
2. Crawler Crane
– Equipped with tracks instead of wheels, crawler cranes are ideal for rough or uneven terrain and large-scale construction projects due to their stability and load-bearing capacity.
3. All-Terrain Crane
– Combining the features of truck-mounted and rough terrain cranes, all-terrain cranes can travel on public roads and rough terrain, making them versatile for a variety of lift projects.
4. Tower Crane
– Commonly used in the construction of tall buildings, tower cranes provide a high lifting height and reach. While typically much larger, specialized models or attachments can adapt to specific 50-ton requirements.
5. Overhead Crane
– Bridge Crane: Widely used in industrial and warehouse settings, these cranes run along tracks mounted on the ceiling.
– Gantry Crane: Similar to bridge cranes but with their own support structures, gantry cranes are often employed for outdoor applications or where overhead structures cannot support the load.
6. Hydraulic Crane
– Utilizes hydraulic cylinders to lift heavy loads, offering precise control. These are often portable and used in various sectors including construction, shipping, and manufacturing.
7. Knuckle Boom Crane
– Featuring an articulated arm, this type of crane is compact and versatile, often mounted on trucks for logistics and transportation tasks requiring a 50-ton lift capacity.
Each type of 50-ton crane is designed to meet specific operational needs, considering factors such as terrain, mobility, precision, and lifting height.
List Application of “50 ton crane”
A 50-ton crane has a wide range of applications across various industries due to its capacity to lift and handle heavy loads. Here are some key applications:
1. Construction Sites:
– Lifting and placing large structural components, such as steel beams and concrete panels.
– Handling prefabricated building materials and heavy machinery.
2. Manufacturing and Industrial Facilities:
– Transporting heavy equipment and machinery within the plant.
– Assembly of large products, such as turbines and large engines.
3. Transport and Logistics:
– Loading and unloading heavy cargo containers and equipment from trucks, trains, and ships.
– Facilitating the transport of oversized and heavy goods.
4. Shipbuilding and Marine:
– Assembly and repair of ship components, such as engines, hull sections, and masts.
– Handling heavy maritime equipment, like anchors and lifeboats.
5. Mining and Resource Extraction:
– Lifting and relocating heavy mining equipment and raw materials.
– Assisting in the construction of mining infrastructure, such as conveyor systems and crushers.
6. Power Plants and Energy Sector:
– Installation and maintenance of heavy components in power plants, including generators and transformers.
– Supporting the assembly and maintenance of wind turbines and other renewable energy installations.
7. Infrastructure Projects:
– Constructing bridges, tunnels, and roads by lifting heavy materials and machinery.
– Installing large pipes and other infrastructure components.
8. Heavy Equipment Rental Services:
– Providing temporary lifting solutions for projects that do not have their own cranes, catering to various industries.
9. Emergency and Disaster Response:
– Assisting in rescue operations by removing debris and lifting heavy objects in the aftermath of disasters.
In summary, 50-ton cranes are invaluable in scenarios requiring the lifting and moving of substantial loads, contributing significantly to the efficiency and safety of operations across multiple sectors.
List Buyer Types of “50 ton crane”
When targeting the market for a 50-ton crane, it’s crucial to understand the various types of buyers who are interested in such heavy lifting equipment. Here are the primary buyer types:
1. Construction Companies:
– Use Case: Large-scale construction projects such as commercial buildings, bridges, and infrastructure development.
– Benefits: Heavy lifting capacity for steel beams, concrete blocks, and other massive materials.
2. Manufacturing Plants:
– Use Case: Moving bulky raw materials, components, and products within the manufacturing facility.
– Benefits: Enhanced efficiency in production lines and safe handling of heavy equipment.
3. Mining Operations:
– Use Case: Transporting mined materials, equipment, and machinery within the mining site.
– Benefits: Robust lifting capability in challenging environments, aiding in operational efficiency.
4. Logistics and Warehousing:
– Use Case: Loading and unloading heavy cargo from ships, trucks, and trains.
– Benefits: Speedy and safe transfer of goods, facilitating effective supply chain management.
5. Energy Sector:
– Use Case: Handling heavy components in oil & gas fields, wind farms, and power plants.
– Benefits: Essential for installing and maintaining heavy equipment, pipes, and turbines.
6. Heavy Equipment Rental Companies:
– Use Case: Renting out to various industries requiring temporary lifting solutions.
– Benefits: Versatile usage across multiple projects, generating rental income.
7. Infrastructure Companies:
– Use Case: Projects like highways, railways, and public utilities construction.
– Benefits: Facilitates the handling of large infrastructural components, enhancing project timelines.
Key Considerations for Buyers:
– Durability: Longevity and performance under tough conditions.
– Cost-effectiveness: Investment return based on project needs and crane life cycle.
– Safety Compliance: Adherence to industry safety standards to prevent accidents.
– Operational Efficiency: Ability to improve project timelines and reduce manual labor.
Understanding these buyer types can help in tailoring marketing efforts, ensuring that the right message reaches potential clients effectively.
List “50 ton crane” Project Types for Different Industries
A 50-ton crane is versatile and essential across multiple industries due to its capacity for lifting heavy loads. Here are project types for different industries that commonly utilize a 50-ton crane:
Construction
1. Building Construction: Lifting steel beams, concrete panels, and other heavy materials.
2. Bridge Construction: Hoisting bridge segments and large structural components.
3. Tower Erection: Assisting in the construction of towers and high-rise buildings.
4. Demolition: Disassembling large structures and removing heavy debris.
Manufacturing
5. Heavy Equipment Assembly: Moving and assembling large machinery components.
6. Shipbuilding: Lifting ship sections and parts during assembly.
7. Automotive: Handling large dies and molds in automotive plant operations.
Power & Energy
8. Wind Farm Installation: Erecting wind turbine components.
9. Power Plant Construction: Handling heavy equipment and parts used in power generation.
10. Oil and Gas: Lifting drilling rigs, pipes, and other heavy materials on-site.
Mining & Minerals
11. Underground Mining Operations: Transporting large mining equipment.
12. Surface Mining: Moving heavy machinery and ore.
13. Processing Plants: Lifting and positioning equipment used in mineral processing.
Transportation & Logistics
14. Port Operations: Loading and unloading heavy cargo.
15. Railway Construction: Laying railway tracks and infrastructure.
16. Aircraft Maintenance: Handling aircraft components during maintenance and construction.
Telecom & Utilities
17. Telecommunications: Erecting and maintaining cell towers.
18. Water Treatment Facilities: Installing and maintaining large pumps and filtration units.
19. Power Line Installation: Lifting and positioning electrical towers and pylons.
Agriculture
20. Large Farm Operations: Handling heavy farming equipment and machinery.
21. Grain Storage: Lifting and placing large storage bins and silos.
These project types reflect the critical role that a 50-ton crane plays across a wide array of industries, supporting tasks that require the lifting and moving of substantial weights, ultimately facilitating construction, maintenance, and operational efficiency.
50 ton crane Accessories Upgrades and Custom Manufacturing Options
When optimizing a 50-ton crane for enhanced performance and versatility, several accessories, upgrades, and custom manufacturing options can be considered:
Accessories:
1. Jib Extensions: Extend reach and improve the crane’s spatial coverage for complex lifting tasks.
2. Overload Protection Systems: Ensure safety by preventing lifts that exceed crane capacity.
3. Remote Control Systems: Enhance operator safety and precision with wireless control.
4. Additional Hook Blocks: Facilitate multi-point lifts and increase operational versatility.
5. Load Monitoring Systems: Provide real-time data on load weight, ensuring operational safety and efficiency.
Upgrades:
1. High-Performance Wire Ropes: Increase lifting capability and durability with advanced wire rope materials.
2. Hydraulic System Enhancements: Improve lifting speed and precision with upgraded hydraulic components.
3. Electronic Load Indicator (ELI): Integrate digital displays for precise load weight measurements.
4. Anti-Sway Systems: Minimize load swing during lifts, enhancing accuracy and safety.
5. Advanced Cabins: Upgrade to climate-controlled and ergonomically designed cabins for operator comfort and efficiency.
Custom Manufacturing Options:
1. Tailored Boom Configurations: Specific boom lengths and types, such as telescopic or lattice, to match particular applications.
2. Custom Fabrication Materials: Select materials like high-strength steel or composite materials for lightweight yet robust performance.
3. Specialized Attachments: Develop unique attachments, such as clamshell buckets or magnet systems, for specialized lifting needs.
4. Custom Paint and Coatings: Apply protective coatings for specific environments, such as marine-grade finishes for corrosive settings.
5. Automatic Greasing Systems: Integrate self-lubrication systems to reduce maintenance and prolong component life.
By integrating these accessories, upgrades, and custom options, a 50-ton crane can achieve higher performance, exceptional safety, and adaptability to diverse operational requirements, ensuring it meets the specific needs of any project.
List Quality Control and The Manufacturing Process of “50 ton crane”
Quality Control:
Quality control in the manufacturing of a 50-ton crane involves meticulous planning and multiple checks to ensure reliability and safety. Key quality control steps include:
1. Material Inspection: Check raw materials for compliance with specified standards.
2. Supplier Audits: Evaluate and certify suppliers to ensure material and component quality.
3. Component Testing: Test hydraulic systems, motors, and other components for performance.
4. Non-Destructive Testing (NDT): Use techniques like ultrasonic or radiographic testing to find internal flaws in welds and materials.
5. Dimensional Accuracy: Measure parts to ensure they meet design tolerances.
6. Prototype Testing: Assemble and test prototypes under load conditions.
7. Assembly Inspection: Check the alignment and fit of assembled parts.
8. Load Testing: Test the crane’s load capacity to 125% of its rated load.
9. Final Inspection: Perform a comprehensive final check before delivery, focusing on operational performance, safety features, and adherence to regulations.
Manufacturing Process:
The manufacturing process for a 50-ton crane involves several stages, each critically managed for precision and efficiency:
1. Design and Engineering: Create detailed engineering drawings and specifications.
2. Material Procurement: Source high-grade steel and other key materials.
3. Cutting and Shaping: Cut and shape steel beams and components using CNC machines and laser cutters.
4. Machining: Machine critical parts like gears, pins, and hydraulic components for precision.
5. Welding and Fabrication: Weld frames, booms, and other structures using MIG/TIG welding techniques.
6. Assembly: Assemble the various sub-components, including hydraulic systems, motors, and control systems.
7. Surface Treatment: Apply anti-corrosive coatings and paint to protect against environmental damage.
8. Electrical and Hydraulic Integration: Integrate electrical systems, wiring, and hydraulic circuits.
9. Quality Control Testing: Conduct rigorous testing as previously outlined.
10. Final Assembly: Finalize the assembly and perform a full operational test.
11. Packaging and Shipping: Package for safe transport and ship to the client.
Effective quality control paired with a structured manufacturing process ensures the production of high-quality, reliable 50-ton cranes.
How to use “50 ton crane”
Using a 50-ton crane safely and effectively requires careful preparation and adherence to specific guidelines. Here’s a step-by-step outline to help you:
1. Training and Certification:
– Ensure you are certified and trained to operate a 50-ton crane. This includes knowing the machine’s controls, safety measures, and operational limits.
2. Pre-Operational Checks:
– Conduct a thorough inspection of the crane, including the hoist, hook, and cables. Ensure there are no visible defects or damages.
– Check fluid levels (oil, hydraulic, coolant) and refill if necessary.
– Verify that all safety devices and warning signals are functional.
3. Site Assessment:
– Evaluate the job site for potential hazards such as power lines, uneven ground, or restricted space.
– Ensure the ground can support the crane’s weight and load. If necessary, use outrigger pads to stabilize the crane.
4. Load Assessment:
– Determine the weight of the load and ensure it does not exceed the crane’s lifting capacity (50 tons max).
– Use proper rigging techniques and equipment. Verify that slings, chains, and hooks are rated for the load and are in good condition.
5. Operational Procedures:
– Plan the lift carefully, considering the load path and any obstructions.
– Communicate clearly with your team using hand signals or radios to coordinate movements.
– Raise the load slowly and steadily. Avoid sudden movements to prevent swinging or destabilizing the crane.
– Keep the load as close to the ground as possible while moving horizontally.
– Never leave a suspended load unattended.
6. Post-Operational Checks:
– Once the load is safely placed, lower the boom and secure the crane.
– Conduct another inspection to ensure no damage occurred during operation.
Remember, safety is paramount when operating heavy machinery. Always follow manufacturer guidelines and your organization’s safety protocols.
“50 ton crane” Comparative Analysis
A “50-ton crane” signifies a lifting capacity of 50 tons, making it a versatile tool across various industries like construction, shipping, and manufacturing. Here’s a comparative analysis with a focus on different types of 50-ton cranes:
1. Mobile Cranes:
– *Pros*: Highly versatile with the ability to move around the job site, typically mounted on trucks or crawlers for enhanced mobility.
– *Cons*: Limited in reach compared to tower cranes; setup time can be significant on uneven terrains.
2. Tower Cranes:
– *Pros*: Provide greater height and lifting range, ideal for constructing high-rise buildings; can cover a large radius.
– *Cons*: Fixed position necessitates dismantling and reassembly when moving; requires a robust foundation.
3. Overhead Cranes:
– *Pros*: Ideal for indoor environments such as warehouses and manufacturing plants; offers efficient horizontal movement across a fixed path.
– *Cons*: Limited adaptability once installed; high initial setup cost.
4. Crawlers:
– *Pros*: Excellent stability and weight distribution, especially suitable for rough or uneven surfaces.
– *Cons*: Movement speed is slow, and they often require disassembly for transport between sites.
5. Rough Terrain Cranes:
– *Pros*: Specifically designed for off-road applications; compact design affords good maneuverability on tough terrains.
– *Cons*: Primarily useful for shorter lifts and rough terrains; limited reach and lifting height.
6. All Terrain Cranes:
– *Pros*: Combines mobility of truck-mounted cranes with off-road capability of rough terrain cranes; versatile and adaptable to various environments.
– *Cons*: Higher cost due to advanced engineering; maintenance can be more complex.
Conclusion: The choice of a 50-ton crane depends heavily on the specific requirements of the project. Mobile cranes offer unmatched flexibility, while tower cranes dominate in height and reach. Overhead cranes excel in indoor environments, and crawler cranes provide stability on challenging terrains. Rough terrain and all-terrain cranes bridge specific gaps, offering specialized capabilities at a higher cost.
“50 ton crane” Warranty and Support
Warranty and Support for 50 Ton Crane
Our 50 ton crane is backed by a robust warranty and comprehensive support services, ensuring reliability and customer peace of mind.
Warranty Coverage:
– Standard Warranty: This crane comes with a standard one-year warranty covering all mechanical and electrical components, as well as any defects in materials or workmanship.
– Extended Warranty: An optional extended warranty is available, offering additional coverage up to five years for critical components.
Support Services:
– Technical Support: Our dedicated technical support team is available 24/7 to assist with troubleshooting and operational issues via phone, email, or our online portal.
– On-Site Service: Certified technicians can be dispatched to your location for on-site repairs, maintenance, and inspections to minimize downtime and ensure optimal performance.
– Training: Comprehensive operator training programs are provided to ensure safe and efficient operation of the crane. Training can be conducted on-site or at our facility.
– Spare Parts: We maintain a large inventory of genuine spare parts, with fast shipping options to reduce any potential delays in repairs and maintenance.
– Maintenance Programs: Tailored preventive maintenance plans can be crafted to prolong the lifespan and reliability of your crane, including scheduled inspections, lubrication, and part replacements as needed.
For more information or to access support services, contact our customer support team or visit our website. Your investment in our 50 ton crane is protected and supported, guaranteeing dependable operation for years to come.
List “50 ton crane” FAQ
Certainly! Here is a concise list of frequently asked questions (FAQ) about a 50-ton crane, keeping it under 300 words:
50 Ton Crane FAQ
1. What is a 50-ton crane?
A 50-ton crane is a heavy-duty lifting machine capable of lifting loads up to 50 tons (100,000 lbs). It is commonly used in construction, manufacturing, and logistics.
2. What types of 50-ton cranes are available?
The main types include mobile cranes (truck-mounted or rough-terrain), hydraulic cranes, crawler cranes, and overhead cranes.
3. What is the maximum lifting height?
The maximum lifting height varies by model but often ranges from 150 to 200 feet with boom extensions.
4. What is the reach or working radius?
Depending on the boom length, a 50-ton crane generally offers a working radius of around 100-150 feet.
5. How is the crane powered?
Most 50-ton cranes are powered by diesel engines, though electric and hybrid options are becoming more available.
6. What kind of terrain can it operate on?
Truck-mounted cranes are suitable for smooth, paved surfaces, while rough-terrain and crawler cranes can operate on uneven and off-road conditions.
7. How long does setup take?
Setup time varies but typically ranges from 30 minutes to 2 hours, depending on the complexity of the job site and the type of crane.
8. Do operators need certification?
Yes, crane operators must have a valid certification from a recognized body like the National Commission for the Certification of Crane Operators (NCCCO).
9. What are the safety precautions?
Safety measures include proper load handling, routine inspections, adhering to load charts, and following OSHA guidelines.
10. How much does it cost to rent a 50-ton crane?
Rental costs can vary widely but typically range from $500 to $1,500 per day, depending on location, duration, and specific requirements.
11. Can a 50-ton crane be transported easily?
Mobile cranes are easier to transport, while others like crawler cranes require disassembly and special trailers for relocation.
12. What are the maintenance requirements?
Routine maintenance includes inspection of mechanical parts, checking fluid levels, and testing control systems to ensure safe operation.
Feel free to reach out to crane suppliers or rental companies for specific details tailored to your project needs.
Top 10 FAQ with answer about 50 ton crane for Buyer Sourcing from China
Certainly!
Top 10 FAQ About Sourcing a 50-Ton Crane from China
1. What types of 50-ton cranes are available from China?
– Chinese manufacturers offer various 50-ton cranes, including truck-mounted, rough terrain, all-terrain, and crawler cranes.
2. What is the estimated delivery time for a 50-ton crane?
– Delivery typically ranges from 30 to 90 days, depending on the manufacturer, crane type, and customization requirements.
3. What are the key features to consider when choosing a 50-ton crane?
– Key features include lifting capacity, boom length, mobility, ease of operation, safety features, and after-sales support.
4. How do Chinese cranes compare in quality to other global brands?
– Chinese cranes have significantly improved in quality, with many complying with international standards. Top brands like XCMG, Zoomlion, and SANY are well-regarded globally.
5. Can spare parts be easily sourced for Chinese cranes?
– Yes, reputable Chinese manufacturers ensure the availability of spare parts globally. Some also have distribution networks and service centers in various countries.
6. What certifications should I look for in a 50-ton crane?
– Look for ISO, CE, and other relevant local or international certifications that ensure the crane meets safety and quality standards.
7. Is there language support for operation manuals and customer service?
– Most established Chinese manufacturers provide operation manuals in English, and have English-speaking customer service representatives.
8. What are the financing options for purchasing a crane from China?
– Financing options may include letters of credit (LC), telegraphic transfers (T/T), and sometimes manufacturer-provided financing or leasing options.
9. How is after-sales service handled?
– After-sales service is provided through parts supply, technical support, and sometimes in-country technicians or local service partners.
10. What are the import duties and taxes involved?
– Import duties and taxes vary by country. It’s crucial to consult with a customs broker or local authority to understand the specific charges related to importing heavy machinery.
These FAQs should provide you with a concise yet comprehensive understanding of what to expect when sourcing a 50-ton crane from China.
