Ace SDH38EU Service manual

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.comStand 03.2021 ACE Stoßdämpfer GmbH · www.ace-ace.com21_22_0019 Issue 05.2022
Table of contents Page
General instructions................................. 2
Safety information ................................... 2
Intended use........................................... 2
Description and function........................... 2
Calculation and design ............................. 2
Delivery and storage ................................ 2
Maintenance and care.............................. 2
Disassembly and disposal......................... 2
Mounting instructions........................... 3 - 5
Warranty ................................................. 6
Expected service life ................................. 6
Technical data.......................................... 6
SDH38EU
SDH50EU
SDH63EU
SDH38 to SDH63
Safety Shock Absorbers
Low reacting forces with long strokes
High rack damper, optimised characteristic
Energy capacity 3,600 Nm/cycle to 229,100 Nm/cycle
Stroke 50 mm to 800 mm
The identification numbers listed are the
respective standard units of the corresponding
shock absorber series. Special types can have
deviating identification numbers.
Operating and mounting instructions
General instructions and technical details
Piston Rod
Gas Accumulator
Positive Stop
Rod Button
Seals
Piston
Outer Body
Main Bearing
Pressure Chamber with
Metering Orifices
Membran

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.comStand 03.2021 ACE Stoßdämpfer GmbH · www.ace-ace.com21_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 safety shock absorbers are machine elements to brake moving
masses in a defined end position in emergency stop situations
for axial forces. The safety shock absorbers are not designed for
regular operational usage.
Description and function
The ACE safety shock absorbers SDH38 to SDH63 are mainte-
nance-free, ready-to-install hydraulic components with numerous
metering orifices. During the slowing down process the moving
mass moves with kinetic energy and, if necessary, an additional
drive energy in the axial direction of the piston rod with a defined
impact velocity against the rod end button of the shock absorber.
Alternatively, numerous shock absorbers can also be used in
parallel. During the initiated slowing down process the piston
rod is pushed into the shock absorber. The hydraulic oil located
before the piston is displaced through all metering orifices at the
same time. The number of effective metering openings reduces
in proportion to the driven stroke. The retraction speed reduces.
The dynamic pressure applied in front of the piston corresponds
to the counterforce applied by the shock absorber and remains
approximately constant over the entire stroke. A requirement for a
constant rate of deceleration is the correct calculation of the safety
Delivery and storage
- After delivery please check the shock absorber for any damage.
- The shock absorber can become damaged if it falls. Carefully
remove shock absorber from the packaging.
- Shock absorbers can generally be stored in any position.
- Storage in the original packaging is preferred.
- Always store shock absorbers in a dry place in order to avoid
oxidation.
- The recommended maximum storage time is three years.
Maintenance and care
Safety shock absorbers are enclosed systems and therefore
do not need special maintenance. Safety shock absorbers that
are not regularly started up (e.g. emergency stop devices) are
checked at least once per year as part of the normal safety
check of the plant. Check that the return of the piston rod is in
the initial position, the damper is not leaking and the mounting
elements are properly secured. The piston rod must not exhibit
any damage. For safety shock absorbers that are regularly
operated, these checks should take place at intervals of no more
than three months.
Disassembly and disposal
Take account of environmental protection (recovery of problematic
substances) during disposal of the shock absorber. The SDH38
to SDH63 safety shock absorbers are filled with HLP 46. The
corresponding data sheet is available on request.
The SDH38 to SDH63 safety shock absorbers are repairable.
Faulty dampers can be sent to our service department for
determination of the cause of failure.
WARNING
If ACE safety shock absorbers 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 shock absorber. Secure moving
masses against inadvertent starting with suitable safety
precautions before installing the shock absorbers.
Safety information
Calculation and design
In order to ensure an optimum, fault-free and durable function of
the safety shock absorbers 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 shock absorber(s) [m/s]
- Additionally acting propelling force, propelling power or propel-
ling torque [N, kW, Nm]
- Number of shock absorbers acting in parallel [n]
- Number of strokes or cycles per hour [1/h]
The correct size of the safety shock absorbers can be determined
with the ACE online calculation programme at www.ace-ace.de.
You can also send us the completed online form via e-mail for
checking.
Or make use of our free calculation service by phoning: +49
(0)2173 - 9226-20.
General Function
F = Force (N) p = Internal pressure (bar) s = Stroke (m)
t = Deceleration time (s) v = Velocity (m/s)
* The load velocity reduces continuously as you travel through the stroke due to the
reduction in the number of metering orifices (*) in action. The internal pressure remains
essentially constant and thus the Force vs. stroke curve remains linear.
*4 *3
p = 400 bar
v = 2 m/s
*2 *1 *0
p = 400 bar
v = 1,5 m/s
p = 400 bar
v = 1 m/s
p = 400 bar
v = 0,5 m/s
p = 0 bar
v = 0 m/s
F/p
s/t
v
t
shock absorber and therefore the correct selection of the right
metering orifice pattern or the right hardness level of the shock
absorber.
WARNING
The dampers must be dimensioned in such a way that the
calculated values do not exceed the maximum values of the
respective performance table (technical data):
W3[Nm/cycle]
Effective weight me
Max. side load angle [°]
The calculation and design of the suitable safety shock
absorber should be undertaken by or checked by ACE.
For a correct damping design the safety shock absorber
must represent the only braking system in an emergency
stop.
Manual
Safety Shock Absorbers SDH38 to SDH63 (high rack damper, optimised characteristic)

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.comStand 03.2021 ACE Stoßdämpfer GmbH · www.ace-ace.com21_22_0019 Issue 05.2022
3
Installation instructions
Before installation and use check whether the identification num-
ber on the damper or on the packaging matches the respective
designation on the delivery note.
Operating temperature range: -20 °C to +60 °C
Mounting: As required but always in such a way that the entire
damper stroke is used. The dampers must always be mounted
in such a way that the forces are introduced centrally over the
piston rod in the damper. The maximum side load angle must
not be exceeded. Safety dampers must not be exchanged from
one installation site to another if the conformity of the throttle
characteristic curve is not ensured.
Packaging disposal
Please dispose of the transportation packaging in an environ-
mentally-friendly manner. Recycling packaging materials saves
raw materials and reduces waste. The packaging materials do not
contain any prohibited materials.
Emergency stop application: After an emergency stop, check
that the piston rod returns to the initial position, the damper is not
leaking and the mounting elements are properly secured. Make
sure that no damage has occurred to the piston rod, the body, or
the mounting hardware.
Regular start-up: Safety shock absorbers can be regularly
started up with 100 % stroke utilisation with a creep speed of 1/10
of the max. impact velocity.
Checking: A regular check should take place at an interval of no
more than three months.
Commissioning
First impacts on the shock absorber should only be tried after
correctly mounting and with reduced impact velocity and – if
possible – with reduced load. Differences between calculated and
actual operating data can then be detected early on, and damage
to the system can be avoided. If the safety dampers were selected
on calculated data that does not correspond to the maximum
possible loading (i.e. selection based on drive power being
switched off or at reduced impact velocity) then these restricted
impact conditions must not be exceeded during initial testing
or subsequent use of the system. Otherwise you risk damaging
the shock absorbers and/or machine by overstressing materials.
After the initial trial, check that the piston rod fully extends again
and that there are no signs of oil leakage. Also check that the
mounting hardware is still securely tightened. Make sure that no
damage has occurred to the piston rod, the body, or the mounting
hardware.
Performance data and dimensions
Mounting type
TYPES
1Energy capacity
Nm/cycle
1Reacting force
N
Return Force min.
N
Return Force max.
N
Stroke
mm
A max.
mm
B
mm
D
mm
E max.
mm
F and R
Weight
kg
S
Weight
kg
SDH38-50EU 3,600 80,000 600 700 50 270 204 165 84 14.0 13.7
SDH38-100EU 7,300 80,000 600 700 100 370 254 215 13 4 15.5 15.7
SDH38-150EU 10,900 80,000 600 700 150 470 304 265 184 17.0 17.2
SDH38-200EU 14,500 80,000 600 700 200 585 369 330 234 20.0 19.7
SDH38-250EU 18,200 80,000 600 700 250 685 419 380 284 22.0 21.7
SDH38-300EU 21,800 80,000 600 700 300 800 484 445 334 24.0 23.7
SDH38-350EU 25,500 80,000 600 700 350 900 534 495 384 26.0 25.7
SDH38-400EU 29,100 80,000 600 700 400 1,015 599 560 434 28.0 28.2
SDH38-500EU 36,400 80,000 600 700 500 1,230 714 675 534 32.0 32.2
SDH38-600EU 43,600 80,000 600 700 600 1,445 829 790 634 36.0 36.2
SDH38-700EU 50,900 80,000 600 700 700 1,660 944 905 734 40.0 40.2
SDH38-800EU 58,200 80,000 600 700 800 1,875 1,059 1,020 834 44.0 44.2
1The values apply to mounting style Front Flange and Foot Mounting. For mounting style Rear Flange, please consult ACE.
In case of an existing side load angle, please consult ACE.
55
20
BStroke
A max
15
Ø
120
160
18
Ø
115
Ø
36
Ø
55
20
BStroke
A max
15
Ø
120
160
18
Ø
115
Ø
36
Ø
30
D ± 1 E max
Stroke
A max
15
30
160
190
18
Ø
61
60
36
115
Ø
36
Ø
55
Ø
SDH38-R Rear Flange
SDH38-S Foot Mount
SDH38-F Front Flange
WARNING
Take particular care that the customer-specific
identification number at the end of the damper designation
matches the number on the delivery note. The field data
to be read from the type plate, such as moving mass and
maximum impact velocity, must be compared with the
technical design. This ensures that the damper is the right
size for its use. Otherwise you risk damaging the shock
absorbers and/or machine by overstressing materials.
The gas accumulators of the SDH38 to SDH63 safety shock
absorbers are filled with nitrogen ex works. The respective
filling pressure (5 bar) can be found on the damper
label. The dampers may only be operated with this filling
pressure. A reduced filling pressure can lead to serious
malfunctions.
During installation of the dampers, moving masses can
lead to injuries due to inadvertent starting. Secure moving
masses against inadvertent moving.
The dampers may be unsuitable for use and have an
insufficient damping effect. Check the specific suitability
of the dampers before installation.
If operated outside of the operating temperature range,
the damper can lose its function. Operating temperature
range must be maintained. Do not paint dampers due to
heat emission.
Fluids, gases and dirt particles in the surrounding area can
attack or destroy the seal system of the damper and cause
it to fail. Protect or encapsulate piston rod and seal system
from external materials in the surrounding area.
Damage to the piston rod surface can destroy the seal
system. Do not grease, oil piston rod etc. and protect
against dirt particles.
The piston rod can be torn from the damper. Do not load
the piston rod with tensile stress.
Damper can tear off upon impact. Always lay out the
connection structure in such a way that the maximum
occurring forces can be absorbed with sufficient safety.
Safety shock absorber check after a damper impact.
Check that the piston rod returns to the initial position,
the damper is not leaking and the mounting elements are
properly secured.
Mounting accessories
If using accessory parts and mounting elements, note the respec-
tive separate mounting instructions for accessories.
Mounting instructions and mounting accessories
Safety Shock Absorbers SDH38 (high rack damper, optimised characteristic)

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.comStand 03.2021 ACE Stoßdämpfer GmbH · www.ace-ace.com21_22_0019 Issue 05.2022
4
Performance data and dimensions
Mounting type
TYPES
1Energy capacity
Nm/cycle
1Reacting force
N
Return Force min.
N
Return Force max.
N
Stroke
mm
A max.
mm
B
mm
D
mm
E max.
mm
F and R
Weight
kg
S
Weight
kg
SDH50-100EU 14,500 160,000 1,000 1,200 100 416 297 258 139 23.5 25.0
SDH50-150EU 21,800 160,000 1,000 1,200 150 516 347 308 189 26.0 27. 5
SDH50-200EU 29,100 160,000 1,000 1,200 200 616 397 358 239 28.5 30.0
SDH50-250EU 36,400 160,000 1,000 1,200 250 731 462 423 289 32.0 33.5
SDH50-300EU 43,600 160,000 1,000 1,200 300 831 512 473 339 34.5 36.0
SDH50-350EU 50,900 160,000 1,000 1,200 350 931 562 523 389 37.0 38.5
SDH50-400EU 58,200 160,000 1,000 1,200 400 1,046 627 588 439 40.0 41.5
SDH50-500EU 72,700 160,000 1,000 1,200 500 1,261 742 703 539 46.0 47. 5
SDH50-600EU 87,300 160,000 1,000 1,200 600 1,476 857 818 639 52.0 53.5
SDH50-700EU 101,800 160,000 1,000 1,200 700 1,691 972 933 739 58.0 59.5
SDH50-800EU 116,400 160,000 1,000 1,200 800 1,906 1,087 1,048 839 64.0 65.5
SDH50-1000EU 145,500 160,000 1,000 1,200 1,000 2,336 1,317 1,278 1,039 75.0 76.5
1The values apply to mounting style Front Flange and Foot Mounting. For mounting style Rear Flange, please consult ACE.
In case of an existing side load angle, please consult ACE.
Installation instructions
Before installation and use check whether the identification num-
ber on the damper or on the packaging matches the respective
designation on the delivery note.
Operating temperature range: -20 °C to +60 °C
Mounting: As required but always in such a way that the entire
damper stroke is used. The dampers must always be mounted
in such a way that the forces are introduced centrally over the
piston rod in the damper. The maximum side load angle must
not be exceeded. Safety dampers must not be exchanged from
one installation site to another if the conformity of the throttle
characteristic curve is not ensured.
Packaging disposal
Please dispose of the transportation packaging in an environ-
mentally-friendly manner. Recycling packaging materials saves
raw materials and reduces waste. The packaging materials do not
contain any prohibited materials.
Emergency stop application: After an emergency stop, check
that the piston rod returns to the initial position, the damper is not
leaking and the mounting elements are properly secured. Make
sure that no damage has occurred to the piston rod, the body, or
the mounting hardware.
Regular start-up: Safety shock absorbers can be regularly
started up with 100 % stroke utilisation with a creep speed of 1/10
of the max. impact velocity.
Checking: A regular check should take place at an interval of no
more than three months.
Commissioning
First impacts on the shock absorber should only be tried after
correctly mounting and with reduced impact velocity and – if
possible – with reduced load. Differences between calculated and
actual operating data can then be detected early on, and damage
to the system can be avoided. If the safety dampers were selected
on calculated data that does not correspond to the maximum
possible loading (i.e. selection based on drive power being
switched off or at reduced impact velocity) then these restricted
impact conditions must not be exceeded during initial testing
or subsequent use of the system. Otherwise you risk damaging
the shock absorbers and/or machine by overstressing materials.
After the initial trial, check that the piston rod fully extends again
and that there are no signs of oil leakage. Also check that the
mounting hardware is still securely tightened. Make sure that no
damage has occurred to the piston rod, the body, or the mounting
hardware.
70
20
BStroke
A max
20
Ø
140
180
18
Ø
133
Ø
45
Ø
70
20
BStroke
A max
20
Ø
140
180
18
Ø
133
Ø
45
Ø
35
D ± 1 E max
Stroke
A max
20
35
190
225
22
Ø
73
72
40
133
Ø
45
Ø
70
Ø
SDH50-R Rear Flange
SDH50-S Foot Mount
SDH50-F Front Flange
WARNING
Take particular care that the customer-specific
identification number at the end of the damper designation
matches the number on the delivery note. The field data
to be read from the type plate, such as moving mass and
maximum impact velocity, must be compared with the
technical design. This ensures that the damper is the right
size for its use. Otherwise you risk damaging the shock
absorbers and/or machine by overstressing materials.
The gas accumulators of the SDH38 to SDH63 safety shock
absorbers are filled with nitrogen ex works. The respective
filling pressure (5 bar) can be found on the damper
label. The dampers may only be operated with this filling
pressure. A reduced filling pressure can lead to serious
malfunctions.
During installation of the dampers, moving masses can
lead to injuries due to inadvertent starting. Secure moving
masses against inadvertent moving.
The dampers may be unsuitable for use and have an
insufficient damping effect. Check the specific suitability
of the dampers before installation.
If operated outside of the operating temperature range,
the damper can lose its function. Operating temperature
range must be maintained. Do not paint dampers due to
heat emission.
Fluids, gases and dirt particles in the surrounding area can
attack or destroy the seal system of the damper and cause
it to fail. Protect or encapsulate piston rod and seal system
from external materials in the surrounding area.
Damage to the piston rod surface can destroy the seal
system. Do not grease, oil piston rod etc. and protect
against dirt particles.
The piston rod can be torn from the damper. Do not load
the piston rod with tensile stress.
Damper can tear off upon impact. Always lay out the
connection structure in such a way that the maximum
occurring forces can be absorbed with sufficient safety.
Safety shock absorber check after a damper impact.
Check that the piston rod returns to the initial position,
the damper is not leaking and the mounting elements are
properly secured.
Mounting accessories
If using accessory parts and mounting elements, note the respec-
tive separate mounting instructions for accessories.
Mounting instructions and mounting accessories
Safety Shock Absorbers SDH50 (high rack damper, optimised characteristic)

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.comStand 03.2021 ACE Stoßdämpfer GmbH · www.ace-ace.com21_22_0019 Issue 05.2022
5
Performance data and dimensions
Mounting type
TYPES
1Energy capacity
Nm/cycle
1Reacting force
N
Return Force min.
N
Return Force max.
N
Stroke
mm
A max.
mm
B
mm
D
mm
E max.
mm
F and R
Weight
kg
S
Weight
kg
SDH63-100EU 19,100 210,000 1,500 2,500 100 420 301 252 144 32 35
SDH63-150EU 28,600 210,000 1,500 2,500 150 520 351 302 194 35 38
SDH63-200EU 38,200 210,000 1,500 2,500 200 620 401 352 244 39 42
SDH63-250EU 47,700 210,000 1,500 2,500 250 720 451 402 294 43 46
SDH63-300EU 57,300 210,000 1,500 2,500 300 850 531 482 344 48 51
SDH63-350EU 66,800 210,000 1,500 2,500 350 950 581 532 394 52 55
SDH63-400EU 76,400 210,000 1,500 2,500 400 1,080 661 612 444 60 63
SDH63-500EU 95,500 210,000 1,500 2,500 500 1,280 761 712 544 68 71
SDH63-600EU 114,500 210,000 1,500 2,500 600 1,510 891 842 644 78 81
SDH63-700EU 133,600 210,000 1,500 2,500 700 1,740 1,021 972 744 88 91
SDH63-800EU 152,700 210,000 1,500 2,500 800 1,970 1,151 1,102 844 98 101
SDH63-1000EU 190,900 210,000 1,500 2,500 1,000 2,430 1, 411 1,362 1,044 118 121
SDH63-1200EU 229,100 210,000 1,500 2,500 1,200 2,890 1,671 1,622 1,244 138 141
1The values apply to mounting style Front Flange and Foot Mounting. For mounting style Rear Flange, please consult ACE.
In case of an existing side load angle, please consult ACE.
Installation instructions
Before installation and use check whether the identification num-
ber on the damper or on the packaging matches the respective
designation on the delivery note.
Operating temperature range: -20 °C to +60 °C
Mounting: As required but always in such a way that the entire
damper stroke is used. The dampers must always be mounted
in such a way that the forces are introduced centrally over the
piston rod in the damper. The maximum side load angle must
not be exceeded. Safety dampers must not be exchanged from
one installation site to another if the conformity of the throttle
characteristic curve is not ensured.
Packaging disposal
Please dispose of the transportation packaging in an environ-
mentally-friendly manner. Recycling packaging materials saves
raw materials and reduces waste. The packaging materials do not
contain any prohibited materials.
Emergency stop application: After an emergency stop, check
that the piston rod returns to the initial position, the damper is not
leaking and the mounting elements are properly secured. Make
sure that no damage has occurred to the piston rod, the body, or
the mounting hardware.
Regular start-up: Safety shock absorbers can be regularly
started up with 100 % stroke utilisation with a creep speed of 1/10
of the max. impact velocity.
Checking: A regular check should take place at an interval of no
more than three months.
Commissioning
First impacts on the shock absorber should only be tried after
correctly mounting and with reduced impact velocity and – if
possible – with reduced load. Differences between calculated and
actual operating data can then be detected early on, and damage
to the system can be avoided. If the safety dampers were selected
on calculated data that does not correspond to the maximum
possible loading (i.e. selection based on drive power being
switched off or at reduced impact velocity) then these restricted
impact conditions must not be exceeded during initial testing
or subsequent use of the system. Otherwise you risk damaging
the shock absorbers and/or machine by overstressing materials.
After the initial trial, check that the piston rod fully extends again
and that there are no signs of oil leakage. Also check that the
mounting hardware is still securely tightened. Make sure that no
damage has occurred to the piston rod, the body, or the mounting
hardware.
85
25
BStroke
A max
20
Ø
160
200
18
Ø
146
Ø
60
Ø
85
25
BStroke
A max
20
Ø
160
200
18
Ø
146
Ø
60
Ø
45
D ± 1 E max
Stroke
A max
20
45
210
254
27
Ø
81
80
44
146
Ø
60
Ø
85
Ø
SDH63-R Rear Flange
SDH63-S Foot Mount
SDH63-F Front Flange
WARNING
Take particular care that the customer-specific
identification number at the end of the damper designation
matches the number on the delivery note. The field data
to be read from the type plate, such as moving mass and
maximum impact velocity, must be compared with the
technical design. This ensures that the damper is the right
size for its use. Otherwise you risk damaging the shock
absorbers and/or machine by overstressing materials.
The gas accumulators of the SDH38 to SDH63 safety shock
absorbers are filled with nitrogen ex works. The respective
filling pressure (5 bar) can be found on the damper
label. The dampers may only be operated with this filling
pressure. A reduced filling pressure can lead to serious
malfunctions.
During installation of the dampers, moving masses can
lead to injuries due to inadvertent starting. Secure moving
masses against inadvertent moving.
The dampers may be unsuitable for use and have an
insufficient damping effect. Check the specific suitability
of the dampers before installation.
If operated outside of the operating temperature range,
the damper can lose its function. Operating temperature
range must be maintained. Do not paint dampers due to
heat emission.
Fluids, gases and dirt particles in the surrounding area can
attack or destroy the seal system of the damper and cause
it to fail. Protect or encapsulate piston rod and seal system
from external materials in the surrounding area.
Damage to the piston rod surface can destroy the seal
system. Do not grease, oil piston rod etc. and protect
against dirt particles.
The piston rod can be torn from the damper. Do not load
the piston rod with tensile stress.
Damper can tear off upon impact. Always lay out the
connection structure in such a way that the maximum
occurring forces can be absorbed with sufficient safety.
Safety shock absorber check after a damper impact.
Check that the piston rod returns to the initial position,
the damper is not leaking and the mounting elements are
properly secured.
Mounting accessories
If using accessory parts and mounting elements, note the respec-
tive separate mounting instructions for accessories.
Mounting instructions and mounting accessories
Safety Shock Absorbers SDH63 (high rack damper, optimised characteristic)

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.comStand 03.2021 ACE Stoßdämpfer GmbH · www.ace-ace.com21_22_0019 Issue 05.2022
6
Warranty
Fundamentally, all modifications to the product by third parties
lead to exclusion from the warranty.
Obvious defects must be reported to the vendor in writing immedi-
ately after delivery, no later than one week, but in any case before
processing or installation, otherwise the assertion of a warranty
claim is excluded. A timely dispatch is sufficient to keep the term.
The vendor is to be given an opportunity to check on site. If the
complaint is justified the vendor offers warranty by repair or re-
placement at its own discretion. If the rectification fails, the buyer
may choose to demand reduction of payment or cancellation of
the contract. If there is only a minor lack of conformity, particularly
with only minor defects, the buyer nevertheless has a right of
withdrawal.
If, after failed rectification, the buyer chooses to cancel the
contract due to a defect of title or material defect, they are not
entitled to additionally claim for damages.
If, after failed fulfilment, the buyer chooses compensation, the
goods remain with the buyer, if this is reasonable. The compen-
sation is limited to the difference between the purchase price and
the value of the defective item. This does not apply if the vendor
maliciously causes the breach of contract.
The quality of the goods is only considered as agreed upon with
the product description of the vendor. Public statements, claims
or advertising of the manufacturer do not represent an additional
contractual specification of quality of the goods.
If the buyer receives defective mounting instructions, the buyer
is only obligated to deliver defect-free mounting instructions and
only if the defect to the mounting instructions prevents proper
mounting.
The warranty period is two years and begins upon completion.
Exchange and return of custom products are fundamentally
excluded. The factory conditions of the manufacturing factory
apply to parts not manufactured and processed by the vendor,
which can be viewed by the orderer at the vendor at any time.
Construction and installation parts are delivered according to the
present standard of engineering.
Service life
In general, safety dampers are machine elements that are
designed for emergency stop applications.
Safety shock absorbers can be started up with 100 % stroke utili-
sation with a creep speed of 1/10 of the maximum impact velocity.
The propelling force must be greater than the return force.
Starting at creep speed subjects the sealing elements of the
safety dampers to wear. The wear of seals is largely dependent
upon the operating conditions and the respective application and
its operating parameters.
Technical data
Energy capacity: 3,600 Nm/cycle to 229,100 Nm/cycle
Impact velocity range: SDH38-50 to SDH38-800: 0.9 m/s to 4.6 m/s
SDH50-100 to SDH50-1000: 0.6 m/s to 4.6 m/s
SDH63-100 to SDH63-1200: 0.5 m/s to 4.6 m/s
Other speeds on request.
Reacting force: At max. energy capacity = 51 kN to 210 kN
Operating temperature range: -20 °C to +60 °C. Other temperatures on request.
Mounting: in any position
Positive stop: integrated
Material: Outer body: Painted steel;
Piston rod: Hard chrome plated steel
Piston rod seal: NBR
Rod end button: Steel with black oxide finish and hardened
Damping medium: HLP 46
Filling pressure: Approx. 5 bar. Rod return by integrated nitrogen accumulator.
Application field: Shelf storage systems, Test stations, Heavy load appliances, Conveyor systems, Portal systems
Note: For creep speed applications, please consult ACE.
On request: Special oils, special flanges, additional corrosion protection etc. Integrated rod sensor for indicating the complete exten-
sion of the piston rod. Type normally closed or normally open, option PNP or NPN switch.
Manual
Safety Shock Absorbers SDH38 to SDH63 (high rack damper, optimised characteristic)