6
Specification
Ring - steel, 1.6541
Bolt - steel
–
forged
–
high-tensile tempered
–
100% electromagnetic tensile tested
–
as per EN 1677
–
plastic coated, pink
–
tensile strength class 10.9
–
100% electromagnetic tensile tested
Mounting
The product may only be used by authorized and trained persons in compliance with
DGUV Rule 100-500 and the corresponding national regulations for use outside of
Germany.
Proper setup
X
Choose an installation where the base material can accept the introduced force
without deformation.
X
Select the screw-in depth for steel with a tensile strength of Rm >340 N/mm² and
a usable thread depth of 1.5 x M. For installing in materials of lesser strength, use
lifting points with a longer screw-in length.
The trade association recommends the following minimum screw-in length:
2 x M in aluminum alloys
2.5 x M in low-strength light metals
(M = thread size, e.g. M 20)
For light metals, non-ferrous metals and grey cast iron, select a thread arrangement
such that the thread load capacity meets the requirements on the base material.
X
A level contact surface (dia. d
3
) must be ensured. Maximum countersinking of the
threaded hole = nominal diameter of the thread. Blind holes must be drilled in deep
enough for the contact surface of the lifting eye bolt to rest against the surface.
Determine the location of the lifting points
Choose the locations of the lifting points so that impermissible stress is avoided such as
twisting or load shifting.
X
For lifting with a
single line
, situate the lifting point directly above the load’s center
of gravity.
X
For lifting with
two lines
, situate the lifting points to either side of and above the
load’s center of gravity.
X
For lifting with
three
or
four lines
, distribute the lifting points evenly in a plane around
the load’s center of gravity.
Load symmetry
DANGER
Overloading of the lifting point
If the load capacity of the lifting point is insufficient, especially in the case of
asymmetrical loading, the load weight cannot be supported.
X
In the case of asymmetrical loading, the load capacity of a lifting point must
correspond to at least the load weight.
X
Determine the required load capacity of the individual product for symmetrical and
asymmetrical loading according to the formula provided below:
W
LL
=
G
n × cos ß
W
LL
= Working load limit of the lifting point/single line (kg)
G = Load weight (kg)
n = Number of supporting lines
ß = Angle of inclination of the single line
Number of supporting lines
Symmetrical
Asymmetrical
Two lines
2
1
Three/four lines
3
1
See also the table, “Technical data”.
Check the temperature specifications
DANGER
Overheating the lifting eye bolt
High temperatures can reduce the load capacity of the lifting eye bolt.
X
Make certain that the temperature of the lifting eye bolt does not exceed 350°C
(662°F).
X
Observe the load capacity of the lifting eye bolt according to the following values:
-40°C to 100°C
- 40°F to 212°F
No reduction
100°C to 200°C
212°F to 392°F
- 15%
200°C to 250°C
392°F to 482°F
- 20%
250°C to 350°C
482°F to 662°F
- 25%
Installation for one-time transports
The lifting eye bolt can be supplied with a flat key (type B) for tool-free installation for
one-time transports.
X
Insert the flat key into the hexagon socket (screwing in and out by hand is possible),
then remove it. Observe the permissible torques. See “Technical data”.
X
If you use the lifting points exclusively for the purpose of strapping down items, you
can double the value for the load capacity. Fperm=2 x WLL (load capacity).
Installation for permanent use
DANGER
Bent ring body
If the ring body is bent, the load cannot be accepted.
X
Replace the ring body.
X
Make certain that the product can be rotated 360° when it is firmly screwed in and
the key has been removed.
X
If the product is to remain permanently installed at this point of applied force, tighten
it with the appropriate tightening torque (+/- 10%). See “Technical data”.
X
All lifting points which are to remain permanently attached should always be secured
well, such as by gluing.
Sudden load changes or vibrations can result in unintended loosening. Securing
options: Observe the tightening torque and use a liquid thread locking agent, such as
Loctite or WEICONLOCK (adapted to the particular use; observe the manufacturer’s
instructions).
