2026 Catalog - Flipbook - Page 13
General Information
Web
Slings
The Lift-All Edge Radius Management tool (RAD-MAN) assists in the evaluation of loads to be lifted with either
roundslings or web slings by providing an easy way to measure the radius of a load edge. This document
conforms to Lift-All requirements and the WSTDA RS-1 polyester roundsling standard. Lift-All minimum edge
radius tables are available for web slings, and also for Tu昀氀ex ® polyester, DynaFlex™ Dyneema® and KeyFlex™
Aramid roundslings.
General
Information
EDGE RADIUS MANAGEMENT TOOL RAD-MAN™
How to Use RAD-MAN
3. RAD-MAN can be used to measure edges of 90° or less. When
positioned correctly, both sides of the load edge will 昀椀rst touch
RAD-MAN at the same point on each side. The radius of this edge
appears to be 3/4 of an inch.
Mesh
Slings
Cargo
Control
Application Examples and Best Practices
C
Hoist
Rings
When using any web sling or roundsling at less than its’ rated capacity,
the minimum edge radius allowed may be reduced by the same
percentage as the slings tension is to its’ rated capacity.
Lift-All
Hoists
As another example, the measurement here looks like 3/16 of an inch.
The only Tu昀氀ex size that can lift to capacity against this edge would be
an EN30. All others would need additional protection.
Rigging
Hardware
If you are having di昀케culty in
reading the measurement,
always err on the safe side. In
this case, if you think that the
昀椀rst touch might be at the EN800
but aren’t sure, and you are
using it to its’ full rated capacity,
then use sling protection.
Chain
Slings
4. This side of RAD-MAN shows the required minimum radius for the
various Tu昀氀ex® roundslings to be used without additional protection.
In this photo, the load edge appears to 昀椀rst touch RAD-MAN at
the EN800. This means that an EN800 or any smaller size would
be good to use against this edge. An EN1000 would need to have
suitable sling cut protection.
Wire
Rope
B
2. Choose Side A or B and then position RAD-MAN over the edge that
will be in contact with the sling.
Sling
Protection
A
RAD-MAN can be used to either measure the radius (Photo A), or
be used to directly check the suitability of a particular Tu昀氀ex size
(Photo B).
Round
Slings
1.
Plate
Clamps
For instance, an EN150 sling at full capacity needs a radius of 3/8”
or greater. An EN150 being used at only 1/2 of its’ rated capacity
could be used on a 3/16” radius without needing additional protection
(i.e. 3/8” x 0.50 = 3/16”).
Lifting
Devices
For additional information on calculating allowable minimum edges
when using a sling at less than its’ rated capacity, please refer to
Lift-All Technical Bulletin RS-48 or contact the Lift-All Engineering
Department.
D
Scan and learn more about edge radius and how to measure
your load with Lift-All's RAD-MAN™ tool.
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