Function:
Shock absorbing sling designed to reduce peak loads in
any climbing system!!
Multi-functional energy absorbing device. Screamers
will provide added protection in climbing and rescue situations.
Screamers not only absorb energy directly because of the
stitch ripping effect, they also allow your rope to absorb
more energy from the fall by increasing the time interval
of the fall. Screamers can reduce shock loading in any
rescue system. The standard Screamer can effectively reduce
peak loads by 3-4kN in any climbing or rescue system.
YATES original Screamers were first developed over ten
years ago, YATES has since developed numerous variations
on the “Screamer” design for use in Aerospace, Military
and explosive testing for the deceleration of objects.
Screamers were originally designed to be used on less
than ideal climbing protection such as small nuts, old
1/4" bolts, snow anchors or marginal protection. We have
determined that the most effective activation for a standard
screamer to be >2kN(550lbf.) for climbing related situations.
The new SHORTY Screamer offers the exact same properties
as the standard Screamer in a more compactly packaged
unit. The new ZIPPER Screamer is designed for long falls
with high fall factors. These types of falls occur usually
within the first two or three protection placements that
are “run out”. Ice climbing is a good example where the
ZIPPER is exceptionally effective when used on the first
few placements. The ZIPPER can effectively reduce peak
loads by 6-8kn in any climbing system. Screamers and Zippers
have proven to be very successful in reducing loads to
any anchor when it is stressed in excess of the activation
force of the Screamer device. * When the Screamer activates,
the action of the stitch ripping produces a loud tearing
sound, indicating the system has reached the activation
point of the Screamer(>2 kN). The activation point of
a Screamer is consistently repeatable to +- 5% accuracy.
(Screamers are very useful in documenting maximum loads
in a given situation, such as their use in Rescue.) Screamers
can be combined in series to double or triple the total
absorption. Screamers can also be “ganged” to increase
activation force and absorption.
Standard SCREAMER, SHORTY, ICE-SCREAMS:
Activation: >2kN. Reduction in system peak loading 3-4kN.
Runner Strength: 26kN.
ZIPPER Screamer: Activation: >2kN. Reduction in system
peak loading 4-8kN. Runner Strength:26kN.
SCREAM AIDS: Activation:>1.5kN. Reduction in system
peak loading 1.5-2kN. Runner Strength: 7kN. "use on
extremely marginal aid placements only"