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How to Choose Synthetic Slings?Synthetic slings supplier sharing

Nov 25, 2024

Synthetic lifting slings are widely using in machining, port loading and unloading, shipbuilding. As well as in power installation, transport, aerospace and other fields. In this article, we will explain in detail how to correctly choose Synthetic slings through the following aspects.

  • Types of Synthetic sling
  • Benefits of Synthetic lifting sling
  • Why it is important to choose the right Synthetic sling
  • Tests for Synthetic sling
  • End of Life Criteria for Synthetic sling

1、Types of Synthetic Slings: Synthetic web slings and Synthetic round slings

Synthetic web slings

  • Overview: Flat web sling provide a wide, smooth load surface during lifting operations and are particularly suitable for lifting objects with soft surfaces.
  • Production range: Rated load 1-40T, effective length 1-100M different specifications and models of synthetic web slings.
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Synthetic round slings

  • Overview:Round slings, also knowing as encapsulated slings. It compose of two major parts: the sheath and the load-bearing core. The sheath is a wear-resistant tube with casing, woven by the loom, the sheath itself is not load-bearing. And mainly plays the role of protecting the carrier core.
  • Production range: rated load 0.5-2000T, effective length 0.5-80M different specifications and models of Synthetic round slings.
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2、Benefits of Synthetic slings

  • Soft and lightweight: the soft texture protects the lifted items. Even if painting and precision components surface will not damaged. High fatigue resistance; coupled with the light weight, very easy to operate and carry.
  • Corrosion-resistant insulation: strong corrosion resistance, high resistance to carbon and oxygen compounds and most chemical organic solvents; non-conductive, no sparks in flammable environments.
  • Safe and stable: elastic elongation working load of about 3%. And breaking load of about 10% do not rebound, do not hurt people.Safety factor of 4-8 times. International standard colour to identify different carrying capacity. And it differentiated according to the bandwidth.

3、Importance of selecting Synthetic slings

  • Safety of life and property: to be able to operate and maintain the sling products correctly to avoid safety accidents.
  • Reduction of production costs: correct procurement and maintenance of sling products to enhance the service life of sling products and avoid injury to the lifted objects.
  • Enhance work efficiency: simplify the process, shorten the operation time, standardise the operation mode, and be able to operate quickly and well.

Lifting and Rigging products use the general rule correctly:

Familiarisation:Familiarise yourself with the performance of the slings themselves in terms of load rating, deadweight and prohibited conditions.
Correct choice:According to the use of the environment and the characteristics of the lifted objects to choose the lifting sling products.
Correct storage:Professional storage rack, can not be mixed, away from heat sources, chemical corrosion.
Corner protection: Protect the corners of the object to be lifted and the ring eye position of the slings to avoid mutual injury.
Daily Inspection:Before operation, the rigging products and their accessories should be inspected and confirmed to be in good condition before use.
Regular inspection:Regular professional inspection (non-destructive, tensile test) of the lifting slings products, determine the performance, long-term shelving.
Timely scrapping:The sling products which are not qualified in inspection should be scrapped decisively, and should not be mixed with the intact tools.
Professional operatio: Professional slings, crane operators and commanders to carry out the work.
Abide by the rules:Keep a safe distance, move smoothly, wear labour protection equipment correctly, and keep the practice of trial lifting.
Lifting and Rigging products Rules of use

4、Synthetic slings inspection

Synthetic slings should checked before use as follows:

Surface Inspection: Synthetic slings should subject to a full-length surface inspection. In order to test the tape for transverse and longitudinal cuts. Also for damage to edges, soft loops and end pieces.

Surface abrasion: The consequences of fabric surface abrasion are varied, but the general situation is a reduction in strength. A large abrasion anywhere, especially a localised abrasion. Which may have scratched by a sharp object, will obviously result in overall damage to the Synthetic slings. And therefore a reduction in strength.

Chemical corrosion: Chemical corrosion will obviously result in localised weakening of the Synthetic slings or softening of the strap material, resulting in the surface fibres falling off or rubbing off, typically powder may fall off.

Cuts: Cuts, particularly at the edge of the belt, will result in a severe reduction in strength. And such damaged slings should take out of service immediately.

Sewing: Sewing not allowed to crack.

Labelling: Synthetic slings under well labelled.

5、End of Life Criteria for Synthetic slings

  • The body shall scrapped if cut, severely abraded, loose with strands, or partially ruptured.
Example of scrapping
  • When the surface seriously worn, the sling abnormally deformed and hairy. And the texture cannot be seen after wear, it should be scrapped.
  • When the surface seriously worn, the sling is abnormally deformed and hairy. And the texture cannot seen after wear, it should be scrapped.
Synthetic slings end-of-life example image
  • Synthetic slings should scrapped if they are mouldy, acid or alkali burnt, thermally melted or scorched. Or if the surface is loose in many places or corroded.
Synthetic slings scrapping example
  • When the load-bearing seams are bloomed or the sewing thread is broken, it should be scrapped.
  • When the metal parts of the complete set of rigging seriously bruised and deformed to affect the use, they should replaced or scrapped.

Synthetic Slings Suppliers:

When looking for Synthetic Slings Suppliers, focus on key factors:

  • Reputation: Choose suppliers with certifications like ISO, CE, or ASME.
  • Range of Products: Ensure they offer web slings, round slings, and custom designs.
  • Quality Assurance: Verify compliance with industry standards for strength and durability.
  • Support Services: Look for companies offering technical advice, load testing, and inspection.

Why choose KNKT as your supplier?

  • Scale of production: KNKT can manufacture high-grade all-round soft rigging; we not only provide high-quality products, but also lifting solutions. It has a five-storey soft rigging building with a three-dimensional construction area of 60,000 square metres, and independently researches and develops China’s unique fully-automatic packaging assembly line.
  • Production equipment: The most advanced Swiss looms, German dyeing and finishing machines, Japanese sewing machines, Spanish twisting machines, as well as advanced testing equipment.
  • Production capacity: strong production capacity, strong technical force, complete product specifications, can meet the needs of different orders.
  • Qualification: Our factory has obtained ISO safety management system certification and a series of international certificates, such as CE, CCS, JIS, and so on.

If you need our engineers to solve your lifting product problems, lifting solutions, please feel free to contact us.

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