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About Us
• Lifting equipment in polyester have a blue id tag
• Polypropylene
• The melting point is 165°C.
• Polypropylene must not be used with loads hotter than 80°C.
• Lifting equipment in polypropylene have a brown id tag.
Safety Factor
Round slings and webbing slings = 7:1 acc.
to EN-standards.
• Polypropylene
• The melting point is 165°C.
• Polypropylene must not be used with loads hotter than 80°C.
• Lifting equipment in polypropylene have a brown id tag.
Safety Factor
Round slings and webbing slings = 7:1 acc.
to EN-standards.
Webbing Slings with Eyes and Round Slings Strops
These webbing slings consist of a woven polyester webbing sewn into an endless loop. They can be used in the same way as roundslings but are limited to tower working loads.
Webbing Slings with Eyes and Round Slings Strops
A webbing sling is a woven webbing with sewn eyeloops at both ends. It is often used to even out and soften the pressure on the load. Round sling strops may have loops too, but the stronger design with a fibre core and cover make them suitable for heavier lifts.
Material Properties
• Polyester is resistant to acids but not to alkalis, e.g. ammonia and caustic soda
• The melting point is 260°C, but polyester lifting equipment must not be used with loads hotter than 100°C
• The strength is not affected by water. Water absorption is negligible
• Note that friction and sharp edges quickly wear polyester down
Webbing Slings with Eyes and Round Slings Strops
A webbing sling is a woven webbing with sewn eyeloops at both ends. It is often used to even out and soften the pressure on the load. Round sling strops may have loops too, but the stronger design with a fibre core and cover make them suitable for heavier lifts.
Material Properties
• Polyester is resistant to acids but not to alkalis, e.g. ammonia and caustic soda
• The melting point is 260°C, but polyester lifting equipment must not be used with loads hotter than 100°C
• The strength is not affected by water. Water absorption is negligible
• Note that friction and sharp edges quickly wear polyester down
About Us
The most common designs of steel wire rope used in lifting equipment are:
• 114-wire rope with a fibre core (diameter: approx. 3 to 8 mm)
• 216-wire rope with a fibre core (diameter: approx. 6 to 60 mm)
• 133-wire rope with a steel core, intended for hot environments.
• 265-wire rope with a steel core, intended for hot environments.
• 144-wire rope for use in shipping and disposable slings.
Further, the nominal breaking strain of individual wires in ropes must be 1770 N/mm2. The minimum wire filling in ropes must be 0.40.
Soft Lifting Equipment
Round Slings
Round slings consist of an endless load-bearing sling made of polyester fibre, protected from dirt and wear with a single- or double-layered cover of polyester fabric. There are two types of covers; sideseam with double cover which give a stiffer roundsling and the seamless for softer version.
Endless Webbing Slings
• 114-wire rope with a fibre core (diameter: approx. 3 to 8 mm)
• 216-wire rope with a fibre core (diameter: approx. 6 to 60 mm)
• 133-wire rope with a steel core, intended for hot environments.
• 265-wire rope with a steel core, intended for hot environments.
• 144-wire rope for use in shipping and disposable slings.
Further, the nominal breaking strain of individual wires in ropes must be 1770 N/mm2. The minimum wire filling in ropes must be 0.40.
Soft Lifting Equipment
Round Slings
Round slings consist of an endless load-bearing sling made of polyester fibre, protected from dirt and wear with a single- or double-layered cover of polyester fabric. There are two types of covers; sideseam with double cover which give a stiffer roundsling and the seamless for softer version.
Endless Webbing Slings
Effective Length
Effective Length: It is the length between the load-bearing points of an unloaded lifting sling or chain sling. Effective length of a one-legged lifting sling with two components. For endless slings both the effective length and the circumference are stated.
Components of Lifting Equipment
The various components of lifting equipment can be described as follows:
Chain
Chain is divided into types depending on shape of the link - short link (KL), medium length link (HL) and long link (LL, HLC) chain.
These chains are also made in different strength grades. Chain of grade 8 is the most common in lifting equipment. The sole exception is chain used in very hot environments, where a chain of grade 3 is required to prevent the heat treatment from being affected. Only use short link chain for lifting operations.
Steel Wire Rope
Components of Lifting Equipment
The various components of lifting equipment can be described as follows:
Chain
Chain is divided into types depending on shape of the link - short link (KL), medium length link (HL) and long link (LL, HLC) chain.
These chains are also made in different strength grades. Chain of grade 8 is the most common in lifting equipment. The sole exception is chain used in very hot environments, where a chain of grade 3 is required to prevent the heat treatment from being affected. Only use short link chain for lifting operations.
Steel Wire Rope
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Yogendra Kumar (Manager Sales)
Wellworth Wire Ropes Private Limited
Wellworth Wire Ropes Private Limited
No. 4045, First Floor, Ajmeri Gate
Delhi - 110006, India
Delhi - 110006, India
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