ACE Stoßdämpfer GmbH · Postfach 1510 · D-40740 Langenfeld · T +49 (0)2173 - 9226-10 (Technik -20) · F +49 (0)2173 - 9226-19 · [email protected] · www.ace-ace.com
Stand 03.2021
ACE Stoßdämpfer GmbH · www.ace-ace.com
21_22_0019 Issue 05.2022
2
General instructions
This manual is for the disruption-free use of the product
types listed on page 1; its compliance is a prerequisite
for the fulfilment of any warranty claims.
Therefore, make sure to read this manual before use.
Please always maintain the specified limits from the per-
formance table (technical data). Take into account the
predominant environmental conditions and restrictions.
Note the regulations of the trade association, TÜV or
corresponding national, international and European reg-
ulations. Installation and commissioning only according
to mounting instructions.
Intended use
ACE profile dampers are an alternative product to the hydraulic
end position damper. They are used wherever moving masses do
not have to be accurately stopped and the energy does not have
to be completely absorbed. The reversible profile dampers are
intended for emergency stop and continuous uses. The TUBUS
profile dampers of the TC range are designed for force absorption
in an axial direction.
Description and function
The TC profile dampers of the ACE TUBUS series are mainte-
nance-free, ready-to-install damping elements made from a
co-polyester elastomer. The diminishing damping characteristic
curve causes a high energy capacity at the start of stroke. The
energy absorption is between 31 % and 64 %.
A structural change in the production process of these damping
elements creates a defined preloading, whereby the TUBUS
converts the occurring force into heat through friction.
One part of the occurring energy is therefore absorbed, whilst the
other part is released again by the return of the body to its original
position.
Calculation and design
In order to ensure an optimum, fault-free and durable function of
the TUBUS Profile Dampers they must be correctly dimensioned
and designed. The following parameters must be known and used
in the calculation:
- Moving mass [kg]
- Impact velocity of the mass into the profile damper(s) [m/s]
- Additionally acting propelling force, propelling power or propel-
ling torque [N, kW, Nm]
- Number of profile dampers acting in parallel [n]
- Number of strokes or cycles per hour [1/h]
The dampers must be dimensioned in such a way that the
maximum energy capacity per stroke is not exceeded during
continuous duty or for emergency stop applications. The specified
performance data and dimensions for the profile damper type
used can be found in the performance table. The correct size
of the profile dampers for emergency stop applications can be
determined with the ACE online calculation programme at www.
ace-ace.com. The calculations are based on dynamic loads.
Where necessary we will also happily send you the respective
dynamic and static characteristic curves. You can also send us
the completed online form by email for checking.
Or make use of our free calculation service by phoning: +49
(0)2173 9226 20
Delivery and storage
The profile damper can become damaged when opening the
packaging. Do not use cutting tools if possible.
- After delivery please check the profile dampers for any damage.
- Profile dampers can generally be stored in any position.
Maintenance and care
Profile dampers are made from one part and therefore do not need
any special maintenance. Profile dampers that are not regularly
operated (e.g. emergency stop devices) are checked at least
once per year as part of the normal safety check of the plant. The
surface is to be checked for cracks and deformations and the
mounting elements checked that they are properly secured. For
profile dampers that are regularly operated, these checks should
take place at intervals of no more than three months.
What should be noted after a damper impact?
Profile dampers that are not regularly operated are to be checked
after a damper impact.
Disassembly and disposal
The profile damper is 100 % recyclable and can be discarded in
household waste.
Example:
Type TC90-49 characteristic curve
Stroke (mm)
Ener
gy (Nm)
1800
1500
1200
900
600
300
0
10 15 20 25 30 35 40
450
400
350
300
250
200
150
100
50
0
10 15 20 25 30 35 40
Stroke (mm)
For
ce (kN)
absorbed energy
rebound stroke energy
F
in
F
back
Energy stroke characteristic curve (dynamic)
(With impact velocity range over 0.5 m/s)
Force stroke characteristic curve (dynamic)
(With impact velocity range over 0.5 m/s)
WARNING
If TUBUS profile dampers are used where a failure of the
product could lead to personal injuries and/or material
damage, additional safety elements must be implemented.
Free-moving masses can lead to injuries by crushing
during installation of the profile damper. Secure moving
masses against inadvertent starting with suitable safety
precautions before installing the profile damper.
Safety information
The total energy and its absorbed portion can be determined from the selection charts.
Example: Energy to be absorbed 1,300 Nm = stroke used 38 mm see example energy stroke characteristic curve.
At the force stroke characteristic curve the determined stroke can be used to determine the share of absorbed or returned force.
As the return force is required for these types, note that at least 90 % of the stroke is used.
Dynamic (v > 0.5 m/s) and static (v ≤ 0.5 m/s) characteristic curves available for all types on request.
TC and TC-S Safety Dampers (crane installations)
Manual