Leantechnik SHB Series User manual

1
www.leantechnik.com
Operating instructions
Stepless holding brake (SHB)
Issue date 2017-09
© LEANTECHNIK AG
Sizes 5.0 - 5.3
Safety brake for profile rail guides

2
www.leantechnik.com
Contents
Contents
1 General information
1.1 Denitions of terms 4
2 Safety
2.1 Safety and information symbols 5
2.2 General information 5
2.2.1 Personnel requirements 5
2.3 Correct use 6
2.4 Handling 6
2.5 Required protective measures by the user 6
2.6 Dimensioning of further machine elements 6
3. Legal provisions
3.1 The following standards, guidelines and regulations have been applied 7
3.2 Liability 7
3.3 Warranty 7
3.4 Notes 7
4 Product description
4.1 Scope of delivery / delivery condition 8
4.2 Function 8
5 Technical data
5.1 Notes 9
5.1.1 Conditions of use 9
5.1.2 Ambient temperature 9
5.1.3 Protection class 9
5.1.4 Noise emissions 9
5.1.5 Installation location 9
5.1.6 Prerequisite for use of the product 9
5.1.7 Technical data 10
6 Correct use
6.1 Instructions for use 14
6.2 Limitations 14
6.3 Reasonably foreseeable misuse 14
6.4 Duration of use 14
6.5 Brake design 15
6.5.1 Calculation example (dynamic braking) 15
6.5.2 Switching times 16

3
www.leantechnik.com
Contents
7 Storage
7.1 Storage of brakes 17
8 Installation
8.1 Installation conditions 18
8.1.1 General 18
8.1.2 Prole rail 18
8.1.3 Control 19
8.2 Installation 20
8.2.1 Prerequisite 20
8.2.2 Preparation 20
8.2.3 Installation process 20
9 Switching condition monitoring 21
10 Commissioning
10.1 Brake test (before commissioning) 22
10.2 Brake test (static) 22
10.2.1 (Static) brake test 22
10.3 Brake test (during operation) 22
10.3.1 Regular function check (static) 22
11 Maintenance / Inspection / Switching frequency
11.1 Switching frequency 23
11.2 Inspection 23
11.3 Maintenance 23
11.4 Cleaning 24
12 Disassembly 25
13 Disposal 26
14 Malfunctions 27
Contents

4
www.leantechnik.com
1 General information
Please read and follow the operating instructions carefully! Non-observance may lead to malfunctions or
failure of the brake and associated damage. These operating instructions are an integral part of the brake
delivery. Always keep the operating instructions easily accessible near the brake.
1.1 Definitions of terms
Term Meaning
Stepless holding brake (SHB) Pneumatically actuated spring-applied brakes as a
component for holding and delaying
moving machine parts.
Rated holding force F Is the theoretical holding force assigned to
the designation. The nominal holding force lies within
the specied nominal holding force tolerances.
Load mass Designation for the weight that the brake
must hold.

5
www.leantechnik.com
2 Safety
2 Safety
2.1 Safety and information symbols
2.2 General information
Brakes can also pose other hazards, e.g:
Hand injuries
Danger of retraction
Serious personal injury and damage to property can occur:
• If the brake is used improperly.
• If the brake has been changed or modied.
• If the relevant STANDARDS of safety or
installation conditions are not observed.
2.2.1 Personnel requirements
To avoid personal injury and damage to property only quali-
ed and trained persons are allowed to work on the compo-
nents. They must be sufciently familiar with their design, trans-
port, installation, commissioning, maintenance and disposal
in accordance with the relevant standards and regulations.
• Technical data and specications (type plate and
documentation) must be strictly adhered to.
General information:
General information:
During the necessary risk assessment when the
machine or plant is being designed, the hazards must be as-
sessed in accordance with Machinery Directive 2006/42/
EC and must be eliminated by means of suitable protective
measures.
Brakes for safety-related applications must be used in a
single or redundant manner according to the required category
to achieve the required performance
level (PLr) as dened by EN ISO 13849. This is
invariably the task of the system manufacturer.
Symbol Signal word Meaning
DANGER Indicates an imminent danger.
If it is not avoided, death or serious injury will result.
WARNING Indicates a potentially hazardous situation.
Failure to avoid this could result in death or serious injury.
CAUTION Indicates a hazardous situation. Failure to avoid this could result in light
or minor injuries.
!
!
!
i
Before installation and commissioning, the in-
stallation and operating instructions must be
read carefully and the safety instructions must
be observed, as incorrect handling can lead to
personal injury and damage to property. The
pneumatic brakes have been developed and
manufactured according to the rules of technol-
ogy known at the time and are generally con-
sidered safe to operate at the time of delivery
! !
i
ATTENTION Possible damage to property may result.
Note Indicates application tips and other particularly useful
information. It is not a signal word for a dangerous or

6
www.leantechnik.com
2 Safety
2.3 Correct use
Stepless holding brakes (SHB) are intended for use
in machines and systems and may only be used for
the purpose ordered and conrmed. Use outside the
respective technical specications is considered incor-
rect.
Stepless holding brakes (SHB) are used for holding and
decelerating on prole rails.
Stepless holding brakes (SHB) prevent unintentional fall-
ing or crashing of gravity-loaded axles.
• Not suitable for use in potentially explosive atmos-
pheres
2.4 Handling
Before mounting, the brake must be checked for proper condi-
tion (visual inspection). Not considered to be proper:
• External damage
• Outer oiling
• External soiling
The function of the brake must be checked both after
installation and after prolonged periods of system inactivity.
2.5 Required protective measures by the user
• Covering of moving parts to protect against
crushing and entrapment.
• Provision of an additional corrosion protection measure if the
brake is used in extreme environmental conditions or
outdoors with direct weather inuences.
2.6 Dimensioning of further machine elements
iThe effect of the maximum and minimum brak-
ing force on the other machine components must
be taken into account for sufcient dimension-
ing. The stepless holding brake (SHB) observes
a maximum braking force of 2.5 x nominal hold-
ing force and a minimum braking force of 1
x nominal holding force of the brake. If further
brakes are arranged behind the stepless holding
brake (SHB), the load is added if the braking
times of the different brakes overlap.

7
www.leantechnik.com
3. Legal provisions
3. Legal provisions
3.1 The following standards, guidelines and regu-
lations have been applied
(also to be observed during installation and operation)
EN ISO 4414
General rules and safety requirements for pneumatic systems and
their components
EN ISO 12100
Safety of machinery - General principles of design -
Risk assessment and risk reduction
EN ISO 13849-1
Safety of machinery - Safety-related parts of control systems
3.2 Liability
The information, notes and technical data given in the documen-
tation were up to date at the time of printing. Claims relating to
brakes that have already been delivered cannot be asserted on
the basis of this. Liability for damages and operational distur-
bances are not accepted in the event of:
• Failure to observe the installation and operating instructions,
• Improper use of the brakes,
• Unauthorised modication of the brakes,
• Improper work on the brakes,
• Handling or operating errors.
3.4 Notes
3.3 Warranty
• The warranty conditions correspond to the conditions
of sale and purchase of Leantechnik AG
(www.leantechnik.com)
• Defects must be reported to Leantechnik AG
immediately after discovery.
Note on the Machinery Directive (2006/42/EC) The product is a component for installation in ma-
chinery in accordance with Machinery Directive 2006/42/EC. In conjunction with other elements, the
brakes can full safety-related applications. The type and scope of the measures necessary are derived
from the risk analysis of the machine. The brake is then part of the machine and the machine manufacturer
assesses the conformity of the safety device with the directive.
The commissioning of the product is prohibited until it has been ensured that the machine complies with
the requirements of the directive.
Note on the ATEX Directive
The product is not suitable for use in potentially explosive atmospheres without this conformity assessment.
To use this product in potentially explosive atmospheres, classication and labelling according to Directive
2014/34/EU must be carried out.
i

8
www.leantechnik.com
4 Product description
4 Product description
4.1 Scope of delivery / delivery condition
• The stepless holding brake (SHB) is assembled ready for
installation.
• The stepless holding brake (SHB) is
set to the specied nominal holding force.
• Observe the type plate
• The scope of delivery and delivery condition must be
conrmed immediately after receipt of the shipment.
LEANTECHNIK does not assume any warranty for
defect claims asserted after this time.
Report transport damage to the supplier immediately.
Incompleteness of the delivery and recognisable defects
must be reported immediately at the manufacturer's works.
4.2 Function
The spring-loaded, closed and pneumatically opened
stepless holding brake (SHB) clamps a prole rail in a manner
that is innitely variable and free of play.
The spring-loaded system ensures the fail-safe principle
with the stepless holding brake (SHB) working as a safety brake.
• By venting the stepless holding brake (SHB) with the
required operating pressure, the clamping element
of the brake is pressed against the cup spring.
The prole rail can be moved (Fig. 1).
• By venting the stepless holding brake (SHB), the
cup spring acts on the brake's clamping element.
The prole rail is clamped (Fig. 2).
The maximum permissible sliding speed is 2 m/s.
Higher speeds on request
Fig. 1 Sliding prole rail under the inuence of pressure
Fig. 2 Clamped prole rail with pressure relief
ATTENTION Brake may be damaged Removing
the transport lock (K) when the brake is depressur-
ised will result in damage. Only remove the trans-
port lock (K) (red screw head) when pressurised.
Caution Note the brake's own weight The brake
may fall during lifting / transporting. Crushing
and impacts may result.
Note!
The maximum clamping force can only be
achieved when the brake is depressurised.
Note!
If the operating pressure is too low, the
brake cannot be properly pressurised
(opened).
i
i
!
!

9
www.leantechnik.com
5 Technical data
5.1 Notes
5.1.1 Conditions of use
• Mounting and connection dimensions at the place of use
must be matched to the size of the brake.
• The use of the brake under extreme environmental
conditions or outdoors with direct contact with
weather inuences is not permitted.
• The surfaces of the exterior components are provided
with a phosphate coating in the factory, which ensures a
corrosion protection base.
• The provision of the required operating pressure
must be guaranteed.
5.1.2 Ambient temperature
-10 °C to +60 °C
The technical data refers to the
specied temperature range.
5.1.3 Protection class
(mechanical) IP44: When installed, protected against sol-
id foreign bodies with a diameter of >1 mm and against
splashing water on all sides.
5.1.4 Noise emissions
Generally no noise emissions
5.1.5 Installation location
The stepless holding brake (SHB) can be used in any
installation position.
5.1.6 Requirements for the use of the product
Compare the limit values in these
operating instructions with the current application, e.g.
• Pressure
• Clamping forces / braking forces
• Braking distances
• Masses
• Temperatures etc.
• Pressure medium
The indicated values are guideline values which have
been determined in test facilities. The suitability for
the intended application must be determined, if nec-
essary, by independent testing. When designing the
brakes, the installation situations, permissible friction
work and braking distances as well as ambient con-
ditions must be carefully checked and coordinated.
i
5 Technical data

10
www.leantechnik.com
5.1.7 SHB1 short version
H
I J
N
O
P
Q
R
U
Anbauflansch
kundenseitig
3) Mindesthaltekraft bei drucklosem Zustand der Bremse und bei trockener oder mineralöl-benetzter Profilschiene
4) Bei einer Schalthäufigkeit >200.000 muss mit einer Reduzierung der Nennhaltekraft von 20% gerechnet werden
C
H
G J
Transportsicherung
(rote Schraubenkopf)
nur im druckbeaufschlagten Zustand entfernen!
Bremse nur mit Führungsschiene schliessen!
Transportation lock
(red bot head)
remove only when pressurised!
close brake only with guide rail!
A
B
D
E
F
M
Schaltzustandskontrolle
switching condition monitoring
Kabellänge / cable length 4.8m
L
K
Position für Transportsicherung
position of transportation lock
H
I J
S
T
ACHTUNG!
Bremse nie ohne Führungsschiene betreiben.
Das Betätigen der Bremse ohne Führungs-
schiene führt zu Beschädigung
ATTENTION!
Never operate the brake without
a guide rail. Activation of the brake
without a guide rail will cause damage
SHB1
kurze Ausführung
Einheit 5.1 5.3
501 390 501 392
A mm 130 190
B mm 120 170
C mm 59 86,7
D mm 98 152
E mm 96 134
F mm M16 28 M24 43
G mm 30 37
H mm 20,7 32,7
I mm 26 40
J "
G 1/8
9,5
Anschluss Ma=12Nm
K mm M8 M10
L mm 79,4 112,4
Induktiver Sensor Fa.Balluff M mm BES516-3005-G-E4-C-PU-05
N mm 25 25
O mm 62 +-/0,1 92,2 +/-0,1
P mm 29,5 42,7
Q mm 1 1
R mm 3 5,5
S mm 15 29
T mm 27 48
Erforderliche min. Dicke
des kundenseitigen
Anbauflansches ( Stahl )
U mm 15 35
Nennhaltekraft
3)4)
bei 6 bar
N 3000 6000
Nennhaltekraft
3)4)
bei 20 bar unter
Verwendung eines
Druckbooster
N 7500 15000
Öffnungsdruck
min.
bar
6 bzw. 20
max. 8 bzw. 28
Steifigkeit
N/
μ
m
490 1000
max. Gleitgeschwindigkeit m/s 2
Umgebungstemperatur °C -10 bis +60
Luftverbrauch pro
Schaltung in Normliter bei
Öffnungsdruck
bei 6 bar
NL
0,135
bei 20 bar 0,448
Druckmedium
Druckluft mit Druckluftqualität
nach ISO 8573-1 Klasse 4
Gewicht kg 4,95 15,67
5 Technical data

11
Article number 5.0 5.1 5.3
SHB1 short version
20 bar version 501 388 501 390 501 392
6 bar version 501 443 501 445 501 447
www.leantechnik.com
3) Minimum holding force when the brake is depressurised and when the profile rail is dry or wetted with mineral oil
4) With a switching frequency of >200,000, a reduction in the nominal holding force of 20% must be expected
5.3
5.5
15.67
5.1.7 SHB1 short version
5 Technical data
SHB1 Unit 5.0 5.1
Short version A mm 115 130 190
B mm 100 120 170
C mm 50 59 86.7
D mm 92 98 152
E mm 82 96 134
F mm M12 21.5 M16 28 M24 43
G mm 25 30 37
H mm 15.5 20.7 32.7
I mm 21 26 40
J mm G 1/8 9.5
Connection Ma=12Nm
K mm M6 M8 M10
L mm 66 79.4 112.4
Balluff inductive sensor M mm BES516-3005-G-E4-C-PU-05
N mm 25 25 25
O mm 54.2 +-/0.1 62 +-/0.1 92.2 +/-0.1
P mm 26 29.5 42.7
Q mm 2.2 1 1
R mm 4.2 3
S mm 15 15 29
T mm 23 27 48
Min. required thickness U mm 10 15 35
of the customer-side
mounting ange ( steel )
Nominal holding force 3)4) N 1750 3000 6000
at 6 bar
Nominal holding force 3)4) N 5000 7500 15000
at 20 bar
using a
pressure booster
Opening pressure min. bar 6 or 20
max. bar 8 or 28
Stiffness N/μm 380 490 1000
Max. sliding speed m/s 2
Ambient temperature °C -10 to +60
Air consumption per
at 6 bar NL 0.09 0.135 0.25
Circuit in standard litre at
at 20 bar NL 0.3 0.448 0.65
Opening pressure
Pressure medium Compressed air with compressed air quality
according to ISO 8573-1 class 4
Weight kg 3.3 4.9

12
www.leantechnik.com
J
O
P
Q
R
N
H
I
U
Anbauflansch
kundenseitig
J J
H
G G
H
C
Transportsicherung
(rote Schraubenkopf)
nur im druckbeaufschlagten Zustand entfernen!
Bremse nur mit Führungsschiene schliessen!
Transportation lock
(red bot head)
remove only when pressurised!
close brake only with guide rail!
H
I
J
T
S
L
K
Position für Transportsicherung
position of transportation lock
D
A
E B
F
M
2 x Schaltzustandskontrolle
2 x switching condition monitoring
Kabellänge / cable length 4.8m
ACHTUNG!
Bremse nie ohne Führungsschiene betreiben.
Das Betätigen der Bremse ohne Führungs-
schiene führt zu Beschädigung
ATTENTION!
Never operate the brake without
a guide rail. Activation of the brake
without a guide rail will cause damage
3) Mindesthaltekraft bei drucklosem Zustand der Bremse und bei trockener oder mineralöl-benetzter Profilschiene
4) Bei einer Schalthäufigkeit >200.000 muss mit einer Reduzierung der Nennhaltekraft von 20% gerechnet werden
SHB2
lange Ausführung
Einheit 5.1 5.3
501 391 501 393
A mm 225 325
B mm 120 170
C mm 59 86,7
D mm 196 288
E mm 96 134
F mm M16 28 M24 43
G mm 28,5 35
H mm 20,7 32,7
I mm 26 40
J "
G 1/8
9,5
Anschluss Ma=12Nm
K mm M8 M10
L mm 79,4 112,4
Induktiver Sensor Fa.Balluff M mm BES516-3005-G-E4-C-PU-05
N mm 25 25
O mm 62 +-/0,1 92,2 +/-0,1
P mm 29,5 42,7
Q mm 1 1
R mm 3 5,5
S mm 15 29
T mm 27 48
Erforderliche min. Dicke
des kundenseitigen
Anbauflansches ( Stahl )
U mm 15 35
Nennhaltekraft
3)4)
bei 6 bar
N 6000 12000
Nennhaltekraft
3)4)
bei 20 bar unter
Verwendung eines
Druckbooster
N 15000 30000
Öffnungsdruck
min.
bar
6 bzw. 20
max. 8 bzw. 28
Steifigkeit
N/
μ
m
490 1000
max. Gleitgeschwindigkeit m/s 2
Umgebungstemperatur °C -10 bis +60
Luftverbrauch pro
Schaltung in Normliter bei
Öffnungsdruck
bei 6 bar
NL
0,269
bei 20 bar 0,897
Druckmedium
Druckluft mit Druckluftqualität
nach ISO 8573-1 Klasse 4
Gewicht kg 8,86 26,67
5.1.7 SHB2 long version
5 Technical data

13
Article number 5.0 5.1 5.3
SHB2 long version
20 bar version 501 389 501 391 501 393
6 bar version 501 444 501 446 501 448
www.leantechnik.com
3) Minimum holding force when the brake is depressurised and when the profile rail is dry or wetted with mineral oil
4) With a switching frequency of >200,000, a reduction in the nominal holding force of 20% must be expected
5.1.7 SHB2 long version
5 Technical data
SHB2 Unit 5.0 5.1 5.3
Long version A mm 192 225 325
B mm 100 120 170
C mm 50 59 86.7
D mm 170 196 288
E mm 82 96 134
F mm M12 21.5 M16 28 M24 43
G mm 25 28.5 35
H mm 21.5 20.7 32.7
I mm 21 26 40
J mm G 1/8 9.5
Connection Ma=12Nm
K mm M6 M8 M10
L mm 66 79.4 112.4
Balluff inductive sensor M mm BES516-3005-G-E4-C-PU-05
N mm 25 25 25
O mm 54.2 +-/0.1 62 +-/0.1 92.2 +/-0.1
P mm 26 29.5 42.7
Q mm 2.2 1 1
R mm 4.2 3 5.5
S mm 15 15 29
T mm 23 27 48
Min. required thickness U mm 10 15 35
of the customer-side
mounting ange (steel)
Nominal holding force 3)4) N 5000 7500 15000
at 6 bar
Nominal holding force 3)4) N 5000 7500 15000
at 20 bar
using a
pressure booster
Opening pressure min. bar 6 or 20
max. bar 8 or 28
Stiffness N/μm 380 490 1000
Max. sliding speed m/s 2
Ambient temperature °C -10 to +60
Air consumption per
at 6 bar NL 0.18 0.269 0.5
Circuit in standard litre at
at 20 bar NL 0.6 0.897 1.3
Opening pressure
Pressure medium Compressed air with compressed air quality
according to ISO 8573-1 class 4
Weight kg 5.33 8.86 26.67

14
www.leantechnik.com
6 Correct use
6 Correct use
See also Section 2.3
6.1 Instructions for use
• Static application: - Hold and clamp in the event of
power failure - In case of pressure drop - EMERGENCY STOP
• Observance of the correct dimensioning of the clamping force
and switching frequency during EMERGENCY STOP for safe
holding of the mass and safe adherence to the required
braking distance.
• Use in a clean environment (penetration of lubricating greases,
coarse dust and other friction-reducing substances can
impair the clamping / braking function).
• Use in closed buildings (in tropical regions, high
ambient humidity and temperatures below 0 °C with
long downtimes, in marine climates, only with special
measures).
6.2 Limitations
• The brake is not suitable for use in heavily soiled
environments
• The brake is not suitable for use in high ambient
temperatures >70 °C
• The brake is not suitable for use in liquid media
• The brake is not suitable for use in a vacuum
• The brake not suitable for contact with abrasive media
(e.g. friction and grinding dust)
• The brake is not suitable for contact with aggressive,
corrosive media (e.g. solvents, acids, alkalis,
salt, etc.)
• The brake is not suitable for contact with foodstuffs
6.3 Reasonably foreseeable misuse
The following uses are prohibited and can lead to hazards.
• Any opening of the screws on the housing.
• Operation without prole rail.
• Exceeding the specied maximum
operating pressure.
• Changing the brake by means of additional
recesses, drill holes, etc.
6.4 Duration of use
20 years or after reaching T10d (denition see EN ISO
13849-1) service life.

15
www.leantechnik.com
6.5 Brake design
Designation
General
When selecting the brake, the nominal holding force must be
greater than or equal to the required holding force.
FNom ≥ Freq. [N]
Design for dynamic braking (EMERGENCY STOP)
As security, at least the weight of the load to be held
+ 100 % reserve must be provided for.
The greater the ratio of the nominal holding force to the re-
quired holding force, the shorter the stopping distance is (under
identical technical conditions)
The minimum holding force required can be calculated using
the following formula:
Freq. = m x g [N]
0.5
Design for static holding (clamping)
As security, at least the weight of the mass to be held +20 %
reserve must be provided for.
The minimum holding force required can be calculated using
the following formula:
Freq. = m x g [N]
0.8
The stopping distance / stopping time of the
load to be braked is strongly dependent on the following inu-
ences:
• Switching time of the control unit (signal processing)
• Switching time of the control valve
• Switching time of the brake
• Cross-section and length of cables
The greater the sum of the switching times the later
the deceleration of the load (due to longer
lasting acceleration). The stopping distance /
stopping time becomes longer (with constant holding force).
Designation
tKo [s] Stopping time: Time
Signal interruption to standstill
of the load
V0 [m/s2] Initial speed
Vmax [m/s2] Maximum speed
6 Correct use
1 Path
2 Speed
3 Axial force
β [°] Angular position 0° (horizontal) to 90° (vertical)
aB [m/s2] Acceleration of the downwards moving
load, depending on the angular position
av [m/s2] Deceleration
g [m/s2] Acceleration due to gravity (9.81 m/s2)
FBr [N] Braking force for dynamic calculation
Freq. [N] Required holding force
FNom [N] Nominal holding force (minimum holding force)
FNtot [N] Rated holding force total (one or more
brakes)
Fmax [N] Maximum holding force
m [kg] Load mass
SBr [m] Braking path: path from beginning of deceleration
until the load comes to a standstill
SSys [m] System path: path travelled by the
load until deceleration starts.
SKo [m] Stopping distance: path from signal interruption
until the load comes to a standstill
t50 [s] Brake switching time
tV1) [s] Valve switching time
(not applicable for Type 382.0 __._)
tSV [s] Control unit switching time (signal processing time)
tSys [s] System switching time
tBr [s] Brake braking time

16
www.leantechnik.com
Details
Angular position of prole rail β = 90° (vertical axis)
Mass m = 200 kg
Initial speed V0 = 0.5 m/s
Valve switching time tV = 0.016 s
Control unit switching time tSV = 0.020 s
Available operating pressure = 6 bar
1. Preselection of braking force
Freq. = m × g [N]
0.5
Freq. = 200 × 9.81 = 3924 [N]
0.5
Selected: SHB 2 Size 5.1,
Type 3850.0_0_ _ at 6 bar,
Nominal holding force FNom = 6000 N
(from Section 5.2 Table "Technical data")
2. Calculation of stopping distance/stopping time
Checking the selected brake size
Acceleration of the load
aB = g x sin(β) = 9.81x sin(90°) = 9.81 [m/s2]
Acceleration of the load
SSys = V0 × tSys + aB × tSys2 × 0.5 [m/s2]
SSys = 0.5 × 0.079 + 9.81 × 0.0792 × 0.5 [m/s2]
SSys = 0.071 [m/s2]
tSys = t50 + tV + tSV = 0.043 + 0.016 + 0.02
tSys = 0.079 [m/s2]
Braking distance
SBr = Vmax2 [m]
2 × ( FNtot - aB )
m
Switching times Size
Brake switching time Type 3850/1 t50 [s] 0.035 0.035 0.040
5.0 5.1 5.3
Stopping distance
SBr = 1.272 =0.04 [m]
2 ×20.19
Vmax = V0 + aB × tSys[m/s]
Vmax = 0.5 + 9.81 × 0.079 =1.27 [m/s]
SKo =SBr + SSys [m]
SKo =0.04 + 0.071 =0.11 [m]
Stopping time
tKo =tBr + tSys [s]
tKo =0.063 + 0.079 =0.142 [s]
tBr = Vmax =1.27 =0.063 [s]
FNtot - aB 20.19
m
Deceleration (for system dimensioning
aV =
FNtot×2.5 --g = 6000×2.5 -9.8 =65.1 [m/s2]
m 200
Load =aV = 65.19 =6.64 [g]
g 9.81
6 Correct use
6.5.1 Calculation example (dynamic braking)

17
www.leantechnik.com
7 Storage
7 Storage
7.1 Storage of brakes
• Brakes should be stored lying down, in dry rooms, free of dust and vibrations.
• Relative humidity < 50 %.
• Temperature without major uctuations in the range from 0 °C to +40 °C.
• No direct sunlight or UV light.
• Do not store aggressive, corrosive substances (solvents / acids / alkalis / salts / etc.) nearby.

18
www.leantechnik.com
8 Installation
8 Installation
8.1 Installation conditions
Observe before installing!
8.1.1 General
• The brake is supplied ready for installation.
• The nominal holding force is determined by the preloading of the
springs at the factory. The ball clamping screws
for the adjustment of the stroke path
are secured against twisting with Loctite 243.
8.1.2 Profile rail
Requirements on the prole rail
i
!
CAUTION Nominal holding force can be inuenced.
Turning of the ball clamping screw by the customer can
lead to malfunctions. Never turn the ball clamping screws.
Note!
The brake must not be dismantled!
Note!
The function of the stepless holding brake (SHB) is only
guaranteed if the rail surface is properly maintained.
ATTENTION Never operate the brake without a prole rail
Operating the brake without a prole rail
leads to damage. The brake
can no longer be used.
CAUTION The clamping effect can be impaired by
friction-reducing
materials such as tough lubricants,
greases or separating agents
- clean if necessary. See Section
11.4
!
i
!

19
8 Installation
www.leantechnik.com
8.1.3 Control
Leantechnik recommends the following pneumatic controls. The
piston chamber is lled with compressed air, thus eliminating
the spring force. In the event of a power failure, the compressed
air in the piston chamber is discharged. The spring force acts
on the clamping element. The prole rail is clamped/braked.
Switching time-related applications
• Select the shortest possible cable paths. Cross sections
and the lengths of the cables inuence
the response times considerably.
• For faster brake application we recommend a
quick exhaust valve (6) (selected according to the
compressed air connection thread).
• The size and speed of the 3/2-way valve (5) inuences
the switching time.
Safety-related applications
• Use of a proximity switch for
switch condition monitoring (see Section 9.1)
• In addition, use a pressure monitor (pressure switch 6)
between the brake and the quick exhaust valve.
i
i
i
Recommendation!
For applications to optimise the
switching time (reduction of braking path)
Note!
The owing away of compressed air must not
be compromised by any other
components.
Recommendation!
For applications to optimise
safety (in case of danger to persons)
Pressure source
Maintenance unit
Check valve (for pressure uctuations)
3/2-way valve (installation as close as
possible to the brake)
Quick exhaust valve (for fast
switching times)
Pressure switch (query for
safety-relevant application)
1
2
3
4
5
6
Position Denomination

20
www.leantechnik.com
8 Installation
8.2 Installation
8.2.1 Prerequisite
• Unpack the brake
• Check completeness
• Check the details on the type plate
• Visual inspection (e.g. after prolonged storage)
8.2.2 Preparation
• Have the necessary tools ready:
- Open-end wrench, etc.
- Torque wrench
• Observe the required minimum thickness of the customer's
mounting ange (dimension U).
• Have fastening screws ready (not included in scope
of delivery)
All tightening torques are recommendations. This information
does not release the user from
checking the data in relation to the installation situation.
8.2.3 Installation process
1. Remove the screw plug from the desired pneumatic con-
nection (J)
2. Connect the pneumatic hose via the thread on the pneu-
matic connection
(J) to the brake
3. Load the brake with operating pressure. See Technical
data.
4. Unscrew the transport lock (K) and
remove it
6. Push the brake onto the prole rail.
7. Screw in the fastening screws (without
torque).
8. Screw locking with Loctite 243
9. Depressurise the brake and thus tension it
(centring).
10. Tighten the fastening screws with tightening torque
Nm.
11. Apply pressure to the brake.
12. Depressurise the brake again (pressure relief).
13. Tighten the fastening screws with tightening torque
!
!
!
!
i
CAUTION Observe the dead weight of the
brake: When lifting / dismantling, the
brake may drop. Crushing
and impacts may result.
With wipers (optional), the
connections m3 and m4 cannot be used.
CAUTION Load crash possible
The brake has no function when the transport
locks are screwed in. The transport lock (red
screw head) must be removed.
ATTENTION Close the brake only with the
guide. The brake must be pushed onto the pro-
le rail.
ATTENTION Brake may be damaged
Removing the transport lock when the brake
is depressurised will result in damage. Only
remove the transport lock (red screw head)
when pressurised.
Size and tightening torques of the fastening screws
Size Thread Tight-
ening
torque
Strength
class
Max.
screw-in
depth B
5.0
5.1
5.3
6 x M12
6 x M16
6 x M24
109 Nm
260 Nm
900 Nm
10.9
10.9
10.9
21.7 mm
27.7 mm
43 mm