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IRS WLL according to mode of use

Please use this table to find your usecase!

Type	Choked x 0.8 WLL kg	90 deg. basket x 1.4 WLL kg	120 deg. basket x 1.0 WLL kg
Type	Choked x 0.8 WLL kg	90 deg. basket x 1.4 WLL kg	120 deg. basket x 1.0 WLL kg
IRS 10	800	1400	1000
IRS 20	1600	2800	2000
IRS 30	2400	4200	3000
IRS 40	3200	5600	4000
IRS 50	4000	7000	5000
IRS 60	4800	8400	6000
IRS 80	6400	11200	8000
IRS 100	8000	14000	10000

IRS Roundsling

EN 1492-2:2001+A1:2009 Textile slings - Safety - Part 2: Roundslings made of man-made fibres for general purpose use

A roundsling manufactured in polyester is a sling comprising a core enclosed in a protective cover.

The core is the load-bearing part of the roundsling and is in the form of a hank of yarn made up from one or more strands of the parent fibre material wound together continuously and joined to form an endless sling. The protective cover is a woven tubular outer sleeve of the same parent material as the core, which is designed to be non-load-bearing as it is intended only for protection and containment of the core.

Effective Working Length (EWL) The effective working length of a roundsling is as shown in figure below and is equal to half its circumference.

Working Load Limit The working load limit marked on the roundsling label and indicated by any colour codes or stripe markings is the maximum load that the sling may sustain when it is in straight pull.

Note: For use in normal conditions the SWL of a roundsling in straight pull will be equal to the WLL.

Mode Factor The mode factor is a numerical value which is applied to the marked working load limit of a roundsling to determine the maximum load which the sling may lift according to the mode of use and assembly, e.g. choke hitch, basket hitch or multiple slinging.