Blog posts of '2024' 'June'

Selection criteria for slings:

Load-bearing capacity and safety factor
The sling must have sufficient load-bearing capacity, and the general safety factor is 4-6 times
Select the appropriate rated load of the sling according to the weight of the hoisted object
Ensure that the use occasions exceeding the rated load of the sling will not occur

Width and thickness
The larger the width, the stronger the load-bearing capacity, generally ranging from 25-200mm
The thickness is generally 2-8mm, the thicker the thickness, the higher the strength
Choosing the appropriate width and thickness can avoid excessive deformation or damage of the sling

Length
Choose the appropriate length according to the hoisting height and process requirements
The common length range is 0.5-12 meters
It is necessary to consider whether it needs to be extended or connected for use

Material
Polyester slings have good wear resistance and strength
Nylon slings are softer and suitable for fragile items
Wire core slings are used for heavy-load hoisting

Others
Consider the hoisting environment, such as anti-corrosion, anti-static and other requirements
Choose buckle or buckleless style, choose according to the use scenario
Pay attention to check the status of the sling and replace it regularly to ensure safety

Combining the above factors, you can choose a suitable sling to ensure the safety and reliability of the hoisting operation.

There are several common types of rigging hardware used in various applications. Here are some examples:

Shackles: Shackles are U-shaped metal connectors with a removable pin or a bolt, used for connecting and securing loads. They come in various types, including anchor shackles, chain shackles, and round pin shackles, each designed for specific applications and load capacities.
Hooks: Hooks are curved metal devices used for lifting and attaching loads to rigging equipment. They come in different configurations such as clevis hooks, eye hooks, swivel hooks, and grab hooks, each suitable for specific purposes.
Turnbuckles: Turnbuckles are adjustable devices used for tensioning and adjusting the length of wire rope, cables, or chains. They consist of two threaded eye bolts or hooks with a center body that can be rotated to increase or decrease tension.
Wire Rope Clips: Wire rope clips, also known as wire rope clamps or cable clamps, are used to secure the ends of wire ropes together or create an eye termination. They typically consist of a U-shaped saddle, a threaded bolt, and a nut for proper clamping.
Thimbles: Thimbles are metal or synthetic inserts used to protect wire rope or synthetic rope from abrasion and deformation when forming an eye termination or passing through a fitting. They help maintain the rope's strength and prevent wear.
Swivels: Swivels are rotational devices that allow the rotation of rigging equipment without twisting the load or the rigging itself. They are commonly used in applications that involve rotation or the prevention of twisting in wire ropes or chains.
Lifting Clamps: Lifting clamps are specialized clamping devices used for gripping and lifting various types of materials, such as steel plates, pipes, or beams. They provide a secure grip and are available in different designs, including vertical clamps, horizontal clamps, and beam clamps.
Eyebolts and Eye Nuts: Eyebolts and eye nuts are threaded fasteners with a loop or eyelet at one end for attaching lifting slings, hooks, or other rigging hardware. They are commonly used for vertical lifting or suspension applications.
Quick Links and Carabiners: Quick links and carabiners are connectors with a gate mechanism used for attaching and securing rigging components. They are commonly used for quick connections, temporary rigging, or creating adjustable connections.
These are just a few examples of common rigging hardware types. The specific type of hardware used depends on the application, load requirements, and industry standards. It is essential to select the appropriate rigging hardware based on the specific needs and requirements of the lifting or rigging operation.

When choosing a rope, you need to determine the appropriate material and strength grade based on the specific usage environment and scenario. The following aspects should be considered:

Use environment
Outdoor - choose UV-resistant and aging-resistant nylon or polyester ropes
Wet places - choose polyester or polypropylene ropes with good waterproof performance
Chemical environment - choose corrosion-resistant nylon or polymer ropes

Load-bearing requirements
Light load lifting - nylon rope and polyester rope have moderate strength
Medium and heavy load lifting - steel core nylon rope and steel wire rope have higher strength
Extra heavy load lifting - steel wire rope and imported high-strength synthetic rope

Safety of use
Mountaineering and rescue - choose static ropes with higher breaking strength
Cableway and cable car - choose steel wire ropes with low ductility and wear resistance
Operation lifting - choose soft and easy-to-knot nylon or polyester ropes

Weather resistance
Long-term outdoor - choose UV-resistant nylon or polyester ropes
High temperature environment - choose aramid or carbon fiber ropes with higher melting point
Low temperature environment - choose soft and cold-resistant polypropylene ropes

Combining the above factors, you can choose the appropriate rope material and strength grade to ensure safe and reliable use.

Specific selection criteria and usage precautions for lashing tools:

Rope selection criteria
Material characteristics and strength grades
Diameter size and length requirements
Applicable to different environments and scenarios

Sling selection criteria
Load-bearing capacity and safety factor
Width, thickness, length parameters
Applicable to lifting, tying and other purposes

Tie strap selection criteria
Material, strength, telescopic performance
Width, thickness, length specifications
Disposable or reusable

Precautions for using tying tools
Correct tying and knotting methods
Be careful to prevent safety hazards such as wear and breakage
Regular inspection, maintenance and replacement

When working with rigging hardware to prevent accidents and ensure safety, it is important to follow these recommended precautions:

Select the right hardware: Choose the appropriate rigging hardware for the specific application, considering factors such as the load capacity, type of connection needed, and compatibility with other components.
Inspect the hardware: Before each use, thoroughly inspect the rigging hardware for any signs of wear, damage, or deformation. Check for cracks, bends, corrosion, or any other abnormalities that may compromise its integrity. If any issues are found, remove the hardware from service and replace it.
Follow manufacturer guidelines: Adhere to the manufacturer's instructions, guidelines, and specifications for the proper use, maintenance, and inspection of the rigging hardware. This includes following load capacity limits, proper attachment methods, and any specific usage recommendations.
Know the Working Load Limit (WLL): Understand and respect the Working Load Limit (WLL) of the rigging hardware being used. Never exceed the WLL, as doing so can lead to equipment failure, accidents, and injuries.
Rigging angle considerations: Consider the angle at which the rigging hardware is used. Different angles can affect the load capacity and stress on the hardware. Refer to industry standards or consult with a qualified engineer to determine the appropriate adjustments or calculations for angled lifts.
Proper connections: Ensure proper connections and secure attachments when using rigging hardware. Use appropriate shackles, hooks, or connectors and ensure they are properly tightened, latched, or secured according to the manufacturer's instructions.
Use appropriate slings and lifting equipment: When using rigging hardware in conjunction with slings or lifting equipment, ensure that the slings are in good condition, properly rated, and suitable for the load being lifted. Follow safe lifting practices and techniques.
Regular maintenance and inspections: Implement a regular maintenance and inspection schedule for all rigging hardware. Perform periodic inspections, as well as thorough inspections after any incidents or suspected damage. Keep detailed records of inspections and maintenance.
Training and qualification: Ensure that personnel involved in rigging operations are properly trained, qualified, and competent. They should have a good understanding of safe rigging practices, load calculations, and the proper use of rigging hardware.
Communication and coordination: Establish clear communication and coordination among all personnel involved in rigging operations. Use appropriate signals, establish a designated signal person, and make sure everyone is aware of their roles and responsibilities.
By following these safety precautions and maintaining a strong safety culture, you can help prevent accidents, ensure the integrity of rigging operations, and protect the well-being of personnel involved.

Ropes, slings, strapping tapes, etc., as binding products in hardware rigging, play an important role in different scenarios. Here is a brief introduction to these common binding tools:

Ropes
Main materials include nylon, polyester, hemp, etc.
Common specifications include round ropes, flat ropes, steel core ropes, etc.
Widely used in hoisting, fixing, mountaineering and other occasions

Slings
Usually made of synthetic fibers such as polyester
Divided into round slings and flat slings
Mainly used for cargo hoisting, mechanical equipment movement, etc.

Strapping tapes
Mostly made of plastics such as nylon and polypropylene
Including disposable cable ties and reusable cable ties
Suitable for binding and fixing wires and cables, pipelines, equipment, etc.

These binding tools have the characteristics of high strength, wear resistance, and easy operation, and are widely used in industry, construction, logistics and other industries. When choosing, factors such as load-bearing capacity, size length, and use environment should be considered to ensure safety and reliability. At the same time, attention should also be paid to correct use and maintenance methods to extend the service life of the product.

When it comes to rigging hardware, such as shackles, hooks, or connectors, the following terms are commonly used:

Working Load Limit (WLL): The Working Load Limit refers to the maximum load that a piece of rigging hardware is designed to safely handle under normal working conditions. It is typically specified by the manufacturer and is based on factors such as the material, design, and safety factors of the hardware.
Proof Load (PL): The Proof Load is a percentage of the Breaking Load or Minimum Breaking Force (MBF) that rigging hardware must be able to withstand without permanent deformation. It is usually a fraction of the hardware's Breaking Load and is used as a test to ensure its strength and integrity.
Breaking Load (BL): The Breaking Load, also known as the Minimum Breaking Force (MBF), represents the maximum load at which the rigging hardware will break or fail. It is the load at which the hardware reaches its breaking point and should never be exceeded during use.
The Working Load Limit (WLL) is the most important value to consider when using rigging hardware. It determines the safe working load that the hardware can handle. It is crucial to ensure that the load being applied does not exceed the WLL of the specific piece of rigging hardware being used.

It is important to consult the manufacturer's specifications, guidelines, or industry standards for the specific rigging hardware you are using to determine the appropriate Working Load Limit (WLL), Proof Load (PL), and Breaking Load (BL) values. These values may vary depending on the type, size, and grade of the rigging hardware.

Always follow the manufacturer's recommendations and guidelines to ensure the safe and reliable use of rigging hardware. Exceeding the WLL or subjecting the hardware to loads beyond the Breaking Load can result in equipment failure, accidents, and potential harm to personnel.