SCHUNK VERO-S NSE-A3 138 User instructions

VERO-S quick-change pallet system
NSE-A3 138
Assembly and Operating Manual
Translation of Original Operating
Manual

Imprint
2 06.00 | NSE-A3 138 | VERO-S quick-change pallet system | en | 1376941
Imprint
Copyright:
This manual is protected by copyright. The author is SCHUNK SE & Co. KG.
All rights reserved.
Technical changes:
We reserve the right to make alterations for the purpose of technical improvement.
Document number: 1376941
Version: 06.00|17/01/2024|en
Dear Customer,
Thank you for trusting our products and our family-owned company, the leading technology
supplier of robots and production machines.
Our team is always available to answer any questions on this product and other solutions. Ask
us questions and challenge us. We will find a solution!
Best regards,
Your SCHUNK team
Customer Management
Tel. [phone]
Fax [phone]
[e-mail]
Please read the operating manual in full and keep it close to the product.

Table of contents
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Table of Contents
1 General ............................................................................................. 5
1.1 About this manual............................................................................... 5
1.1.1 Illustration of safety notes ........................................................... 5
1.1.2 Applicable documents ................................................................. 6
1.2 Warranty ........................................................................................... 6
1.3 Design .............................................................................................. 6
1.4 Scope of delivery................................................................................. 6
1.5 Accessories ........................................................................................ 6
2 Basic safety notes................................................................................. 7
2.1 Appropriate use .................................................................................. 7
2.2 Inappropriate use ............................................................................... 7
2.3 Structural changes............................................................................... 8
2.4 Spare parts ........................................................................................ 8
2.5 Ambient conditions and operating conditions ........................................... 8
2.6 Material limitations ............................................................................. 8
2.7 Personnel qualification ........................................................................ 9
2.8 Personal protective equipment .............................................................. 9
2.9 Transport........................................................................................... 9
2.10 Protection during handling and assembly ................................................ 10
2.11 Protection during commissioning and operation ........................................ 10
2.12 Notes on safe operation........................................................................ 10
2.13 Disposal ............................................................................................ 11
2.14 Fundamental dangers .......................................................................... 11
2.15 Protection against dangerous movements ................................................ 11
2.16 Notes on particular risks ....................................................................... 11
3 Product description............................................................................... 13
3.1 Description of design and variant ........................................................... 13
3.2 Technical data .................................................................................... 13
3.2.1 Suitability for welding applications ................................................ 14
3.3 Technical data for coupling elements of media transfer unit......................... 14
4 Assembly............................................................................................ 15
4.1 Screw tightening torques ...................................................................... 15
4.2 Pre-assembly ..................................................................................... 15
4.3 Installing and connecting ..................................................................... 16
4.4 Fastening and connection ..................................................................... 17
4.4.1 Mounting ................................................................................. 20

Table of contents
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4.5 Clamping pins SPA 40, SPB 40, SPC 40, SPG 40............................................ 21
4.5.1 Notes on clamping pin SPG 40....................................................... 24
4.6 Clamping slide monitoring .................................................................... 24
4.7 Pneumatic circuit diagram .................................................................... 26
4.7.1 Connection recommendation for limited control channels................... 28
4.8 AFS 138 electronic monitoring systems (optional) ........................................ 28
4.9 Flat seal (option)................................................................................. 28
5 Function ............................................................................................ 29
5.1 Cone seal........................................................................................... 29
5.2 Media transfer unit.............................................................................. 29
6 Operation........................................................................................... 31
7 Maintenance and care ........................................................................... 32
8 Troubleshooting................................................................................... 33
8.1 The clamping area does not unlock ......................................................... 33
8.2 The clamping area does not unlock properly ............................................. 33
8.3 The quick-change pallet system no longer opens quietly ............................. 33
8.4 If the clamping area does not unlock properly........................................... 33
8.5 Malfunctions when loading and unloading the change interface with fitted
cone seal........................................................................................... 34
8.6 The cone seal does not seal ................................................................... 34
8.7 The media transfer unit of the NSE-A3 138-V4-P is not working..................... 34
9 Storage.............................................................................................. 35
10 Sealing kits, accessory kits and part lists .................................................... 36
10.1 Sealing Kit List .................................................................................... 36
10.2 Accessory kits ..................................................................................... 36
10.3 Parts lists .......................................................................................... 36
10.3.1 Cone seal.................................................................................. 36
10.3.2 Size NSE-A3 138.......................................................................... 36
11 Assembly Drawings ............................................................................... 38
11.1 Assembly........................................................................................... 38
11.2 Cone seal........................................................................................... 39

General
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1 General
1.1 About this manual
This manual contains important information for the safe, correct
use of the product.
It is an integral part of the product and must be kept accessible
for personnel at all times.
Personnel must have read and understood this manual before
beginning any work. The observance of all safety notes in this
manual is a prerequisite to ensure safe work processes.
The illustrations are intended to provide a basic understanding
and may deviate from the actual version.
Besides this manual, other documents which apply are those
listed under }1.1.2 [/6]
1.1.1 Illustration of safety notes
To make risks clear, the following signal words and symbols are
used for safety notes.
DANGER
Denotes a hazard with a high degree of risk that, if not avoided,
will result in death or serious injury.
WARNING
Denotes a hazard with a medium degree of risk that, if not
avoided, could result in death or serious injury.
CAUTION
Denotes a hazard with a low degree of risk that, if not avoided,
could result in a minor or moderate injury.
CAUTION
Information about avoiding material damage.

General
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1.1.2 Applicable documents
lGeneral Terms and Conditions *
lCatalog data sheet for the attached product *
lTechnical data sheet for optional attachments *
lApproval drawings
The documents labeled with an asterisk (*) can be downloaded
from schunk.com.
1.2 Warranty
The warranty for standard products is 24 months from the date of
delivery from the factory, or 50,000 cycles* for manually
operated clamping devices and 500,000 cycles* for power
operated clamping devices. For special clamping devices, it is 12
months from the date of delivery from the factory, assuming
appropriate use in accordance with the following conditions:
lObserve the applicable documents, }1.1.2 [/6]
l
Observance of the ambient conditions and operating conditions
lObserve the care and maintenance instructions
Parts touching the workpiece and wearing parts are not covered
by the warranty.
* One cycle comprises one complete clamping procedure
("opening" and "closing").
1.3 Design
This guide applies to the following sizes in all
variants }3.1 [/13]
Quick-Change Pallet System
lSize NSE-A3 138
1.4 Scope of delivery
The scope of delivery includes
1 quick-change pallet system in the version ordered
l1 quick-change pallet system accessory kit
l1 cone seal accessory kit
l1 assembly and Operating Manual
1.5 Accessories
(see catalog or data sheets when ordering separately)
lSPA40(-16), SPB(-16), SPC(-16), SPG clamping pins
lPlug (conversion)
lWeaker compression spring for cone seal
lAFS3 138 PMI monitoring system
lAFS3 138 MMS monitoring system
lSDE protection cover
lCoupling nipple for pallet

Basic safety notes
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2 Basic safety notes
Improper handling, assembly and maintenance of this product
may result in risk to persons and equipment if this operating
manual is not observed.
2.1 Appropriate use
lThis product and the compatible add-on components are
intended for positioning and clamping workpieces or
clamping pallets on machine tools.
lThe product may only be used within the scope of its technical
data.
lThe product is intended for industrial and commercial use.
lAppropriate use of the product includes compliance with all
instructions in this manual.
lClamping of pallets and workpieces with temperatures
between 0°C and 100°C, with clamping devices for higher
temperatures (HT variant) up to 200°C.
2.2 Inappropriate use
The product is not being used appropriately if:
lthe product is used as a pressing tool, a toolholder, a load-
handling device or as lifting equipment.
lthe technical data specified are exceeded during usage.
lthe clamping pin or clamping ring is not mounted properly.
lthe product is used for turning applications over 100 RPM
without consulting SCHUNK.
lthe product is not fully covered by the pallet, the fixture or
the workpiece.
lthe product is brought into contact with aggressive media,
especially acids.
lthe product is used in abrasive blasting processes, especially
sandblasting.

Basic safety notes
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2.3 Structural changes
Implementation of structural changes
Modifications, changes or reworking, e.g. additional threads,
holes, or safety devices, can damage the product or impair its
functionality or safety.
lStructural changes should only be made with the written
approval of SCHUNK.
2.4 Spare parts
Use of unauthorized spare parts
Using unauthorized spare parts can endanger personnel and
damage the product or cause it to malfunction.
lOnly use original spare parts and spares authorized by
SCHUNK.
2.5 Ambient conditions and operating conditions
Required ambient conditions and operating conditions
Incorrect ambient and operating conditions can make the
product unsafe, leading to the risk of serious injuries,
considerable material damage and/or a significant reduction in
the service life of the product.
lEnsure that the product is only used within its technical data.
lEnsure that the product is of a sufficient size for the
application.
lEnsure that the contact surfaces of the interface and recesses
towards the locating surfaces above the mounting points are
kept clean at all times.
Prevent chips from entering the interface and cooling
emulsion from filling the interface.
lOnly use cooling emulsions with anti-corrosive additives
when machining.
lWhen using the cone seal, protect it from direct high-pressure
spraying with cooling emulsion.
2.6 Material limitations
The product is made of steel alloys, elastomers and aluminum
alloys. In addition, Branotect anti-rust oil and Renolit HLT2 are
incorporated into the product as auxiliary and operating
materials.

Basic safety notes
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2.7 Personnel qualification
Inadequate qualification of personnel
Any work on the product by inadequately qualified personnel can
lead to serious injuries and considerable material damage.
lAll work must be performed by appropriately qualified
personnel.
lPersonnel must have read and understood the complete
manual before beginning any work on the product.
lObserve country-specific accident prevention regulations and
the general safety notes.
The following personnel qualifications are required for the
various activities on the product:
Qualified electrician Qualified electricians have the professional training, knowledge,
and experience to work on electrical systems, to recognize and
avoid potential dangers, and know the relevant standards and
regulations.
Specialist personnel Specialist personnel have the specialized training, knowledge,
and experience to perform the tasks entrusted to them, to
recognize and avoid potential dangers, and know the relevant
standards and regulations.
Instructed person Instructed persons have been instructed by the operator
regarding the tasks entrusted to them and the potential dangers
of inappropriate behavior.
Manufacturer's service
personnel
The manufacturer's service personnel have the specialized
training, knowledge, and experience to perform the work
entrusted to them and to recognize and avoid potential dangers.
2.8 Personal protective equipment
Use of personal protective equipment
Personal protective equipment serves to protect staff in the event
of a danger that may interfere with their health or safety at
work.
2.9 Transport
Handling during transport
Incorrect handling during transport can make the product unsafe
and risks the danger of serious injuries and considerable material
damage.
lDuring transport and handling, secure the product to prevent
it from falling.

Basic safety notes
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2.10 Protection during handling and assembly
Incorrect handling and assembly
Incorrect handling and assembly can make the product unsafe
and can risk the danger of serious injuries and considerable
material damage.
lAll work must only be performed by appropriately qualified
personnel.
lSecure the system against accidental operation during all
work.
lUse suitable assembly and transport equipment and take
precautions to prevent jamming and crushing.
2.11 Protection during commissioning and operation
Falling or violently ejected components
Falling and ejected components can lead to serious injury or
death.
lTake suitable protective measures to secure the danger zone.
Manual loading
lIf the clamping device is closed, the clamping pallet rests on
the clamping slides after loading. When the clamping device
is opened, the clamping pallet falls down. This poses a risk of
crushing.
2.12 Notes on safe operation
Incorrect manner of working by personnel
An incorrect manner of working can make the product unsafe
and risks serious injuries and considerable material damage.
lObserve the safety notes and assembly instructions.
lDo not expose the product to any corrosive media.
Products for special ambient conditions are excluded here.
lDo not expose the product to any media that lead to swelling
or corroding of seals.
lRectify malfunctions as soon as they occur.
lObserve the care and maintenance instructions.
lObserve the current safety, accident prevention, and
environmental protection regulations for the application field
of the product.
lThe machine spindle must not be started until the clamping
pressure in the clamping device has built up.
lUnclamping may only occur once the machine spindle has
come to a standstill.

Basic safety notes
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2.13 Disposal
Handling of disposal
Incorrect handling of disposal can make the product unsafe and
lead to risks of environmental harm.
lFollow local regulations on dispatching product components
for recycling or proper disposal.
2.14 Fundamental dangers
General
lDisconnect power sources before installation, modification,
maintenance, or calibration. Ensure that no residual energy
remains in the system.
lDo not reach into the open mechanism or movement area of
the product during operation.
2.15 Protection against dangerous movements
Safe condition
Quick-change pallet system with or without chuck jaws clamped
and without energy.
Unexpected movements
If the system still retains residual energy, serious injuries can be
caused while working on the product.
lEstablish a safe state, switch off the energy supply, ensure
that no residual energy remains and secure against
inadvertent reactivation.
2.16 Notes on particular risks
WARNING
Risk of injury due to falling device, pallet or workpiece if the
clamping pin or clamping ring is loosened erroneously or as a
result of negligence.
lDuring operation, unintentional loosening of the clamping
pin or clamping ring must be prevented by suitable
countermeasures (implementation of the safety functions
according to the risk assessment of the integrator).
lWear personal protective equipment.

Basic safety notes
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WARNING
Risk of injury during commissioning due to a falling unlocked
device, pallet or workpiece.
l
During loading, check that the coupling elements, devices, pallets
or workpieces are positioned so they are aligned to each other.
lClamping pallets with torque pin must be fed to the module
in the correct orientation before locking.
lFor modules with media transfer units, ensure the loading
weight on the change interface is sufficient to ensure the
surface of the interface is level with the module.
WARNING
Risk of injury when the clamping pin or clamping ring axis is in
a horizontal position or during overhead applications due to
the device or pallet falling down.
lUse a crane or a transport truck when transporting
workpieces or clamping pallets.
lDuring horizontal or overhead applications, the device or
clamping pallet must be secured before loosening to prevent
it from falling.
WARNING
The quick-change pallet system clamps using spring force.
Risk of injury due to parts automatically moving to their end
positions following actuation of an >>emergency stop<< or
after switching off or failure of the power supply.
l
Wait for the system to come to a complete standstill in safe state.
lDo not reach into the clamping module.
CAUTION
Risk of injury due to contamination (e.g. coolant or splashing
water) in the blow-out and air purge connections of the
clamping module or in the change interface.
lClean the quick-change pallet system before loading.
lWear personal protective equipment (safety goggles).
CAUTION
Risk of injury from pressurized media transfer unit interfaces.
The actuated clamping device on top of these may move
unexpectedly as a result.
lDo not control the media transfer units until the device is
clamped on the quick-change pallet systems.
lTake suitable protective measures to secure the danger zone.

Product description
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3 Product description
3.1 Description of design and variant
Clamping module Variant Torque pin V4 Cone seal Media transfer unit
NSE-A3 138 - x -
NSE-A3 138-V4 x x -
NSE-A3 138-V4-P x x Hydrokomp NW3
NSE-A3 138-V4-P1 x x SWS
3.2 Technical data
Actuating pressure [bar] 6
Repeat accuracy [mm] < 0.005
Pull-in stroke [mm] max. 0.9
Loading weight for versions with cone
seal [kg]
min. 3.2
Loading weight for cone seal when
using a weaker compression spring
(optionally available) [kg]
min. 2
Installation position any
Operating temperature [°C] +5 to +60
Required level of cleanliness IP 30 in accordance with DIN EN 60529
Noise emission [dB(A)] ≤ 70
Pressure medium Compressed air, compressed air quality according to
ISO 8573-1:2010 [7:4:4]
Protection class IP 67
Designation
Variant
ID Holding force*
(M10 / M12 / M16)
[kN]
Pull down force
without turbo [kN]
Pull down force
with turbo [kN]
NSE-A3 138 1364306 35 / 50 / 75 8 28
NSE-A3 138-V4 1364307 35 / 50 / 75 8 28
NSE-A3 138-V4-P 1351708 35 / 50 / 75 8 28
NSE-A3 138-V4-P1 1339726 35 / 50 / 75 8 28
* Holding force when fastening the clamping pin with cylindrical screw – DIN EN ISO 4762/12.9
The actuating pressure for the turbo function must not exceed
6 bar.
A separate maintenance unit must be used for the air supply.
The quick-change pallet system is designed for operation with
dry compressed air. If oiled compressed air is used for
operation, this must be done every time. For an air volume of
1000 liters, the compressed air should be prepared with 1 to 2
drops of oil.

Product description
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Type designation Function Type / Connection
All variants of:
NSE-A3 138
Clamping taper
blow-out function
Cleaning of the change interface,
connection M7
Pneumatic dynamic
pressure monitoring
1. Clamping slide position clamped
(hose-free direct connection)
2. Clamping slide position opened
(hose-free direct connection)
Dynamic pressure
monitoring / blow-off
internal / external
bearing surface
Pallet presence or cleaning of internal /
external bearing surface, connections G1/8"
or hose-free direct connection
NSE-A3 138-V4 (-P / -P1) Blow-out torque pin
(and media transfer
unit)
Cleaning the torque pin (and media
transfer unit), connection G1/8" or hose-
free direct connection
3.2.1 Suitability for welding applications
The clamping device can be used for welding applications with a
welding current of up to 525 A. The welding current is allowed
to flow through the clamping device.
CAUTION
In welding applications, special care must be taken to ensure
that the operating temperature of the clamping device is not
exceeded due to heat conduction in the workpiece.
CAUTION
The contact surfaces of the workpiece and the clamping bolt
must always be kept clean to ensure the best possible contact
with the clamping device.
If the quick-change pallet system is to be used outside the specified
welding currents, please contact your SCHUNK contact person.
3.3 Technical data for coupling elements of media transfer unit
Designation
Variant
ID number Coupling elements, nominal
width 3
NSE-A3 138-V4-P 1351708 Operating pressure: max. 300 bar
Flow rate per minute: max. 8 l
Coupling stroke: 2.5 mm
Coupling force at 0 bar: min. 51 N
Loading weight per module: min. 204 N
Coupling function can be connected
when depressurized
(with 4 couplings)

Assembly
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4 Assembly
4.1 Screw tightening torques
Tightening torques for mounting the clamping pins
(Screw quality 12.9)
Screw size M6 M8 M10 M12 M14 M16
Tightening torque (Nm) 15 32 62 108 170 262
Tightening torques for mounting the clamping modules
(Screw quality 10.9)
Screw size M4 M5 M6 M8 M10 M12 M14
Tightening torque (Nm) 4.2 7.5 13 28 50 88 120
Tightening torque for the countersunk screw on the cone seal
(Screw quality A2-70)
Screw size M6
Tightening torque (Nm) 5
Tightening torques for the plug and cover conversion parts in
the clamping pin mounting
Component Plug (basic version) Bottom cover
Tightening torque (Nm) 10 10
4.2 Pre-assembly
Request our installation drawings if installing the module in
the customer's clamping stations yourself.
The installation position must be observed when performing the
installation yourself.
1 Partial installation 2 Do not use 3 Full installation
CAUTION
With installation location 2, the clamping slide can be blocked
by chips and dirt. For this reason, do not use this installation
position. Otherwise make sure to fit deeper clearance in front
of the movable clamping slides.
lDamage to the clamping module is possible.

Assembly
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4.3 Installing and connecting
WARNING
Risk of injury due to unexpected movements!
If the power supply is switched on or residual energy remains in
the system, components can move unexpectedly and cause
serious injuries.
lBefore starting any work on the product: Switch off the power
supply and secure against restarting.
lMake sure, that no residual energy remains in the system.
WARNING
Risk of injury due to unexpected movements when installing
and removing the cone seal!
This can cause components to move unexpectedly when working
on the cone seal, resulting in injuries.
lBefore starting all work on the product, refer to the cone seal
chapter, }5.1 [/29].
lMake sure that components of the gate unit are fitted in
accordance with the installation guidelines and safely locked
in place.
CAUTION
Danger of injury due to sharp edges and rough or slippery
surfaces
lWear personal protective equipment, particularly protective
gloves.
1. Check the flatness of the bolting surface, }4.4 [/17].
2. Screw the module with the O-rings inserted onto the
clamping station.
ðObserve permissible tightening torques for the mounting
screws and the strength class, }4.1 [/15].
3. Connect module, }4.4 [/17].
ðvia the hose-free direction connection in the base of the
quick-change pallet system, OR
ðvia supply lines on the side G1/8" connections
– remove locking screws G1/8".
– screw in air connections.
4. If necessary, connect monitoring functions.

Assembly
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4.4 Fastening and connection
Flatness
If several linked clamping modules are mounted, make sure that
the flatness and height deviation of the outer ring locating
surfaces from clamping module to clamping module (with respect
to a 200 mm gauge) is ≤ 0.03 mm. The gauge deviation may not
exceed ± 0.015 mm.
Redundancy
Due to redundancy, a clamping pin with positioning accuracy in
one direction (SPB 40, sword-shaped position) must be used for
clamping modules that are more than 160 mm apart or that do
not exhibit a positioning tolerance of ± 0.01 mm. The sword-
shaped alignment surfaces on the SPB 40 clamping pin must be
aligned at right angles to the longitudinal axis between clamping
pins SPA 40 and SPB 40. This allows for compensation of a
distance offset between the clamping areas to be aligned. For
the clamping areas that are not intended for aligning the device
or pallet, clamping pins with centering clearance (SPC 40) must
be used (also refer to chapter "Clamping pins"}4.5 [/21]).
Air bleeding for the piston chamber
When connecting the quick-change pallet systems, it is important
to note that the piston chamber can only be ventilated via the air
connections during the locking process. The relevant valves or
shut-off valves should therefore be equipped with load relief.
This also applies to the turbo connection. If the turbo connection is
not used, the relevant side of the piston must have a way of being
ventilated. This is optimally done via the turbo connection itself.
For the NSE-A3 138, a ventilation option for the cylinder chamber can
be created by removing the M4 x 4 set-screw in the cover of the
clamping module. The following views illustrate the ventilation
options.
Air bleeding via turbo connection, air bleeding via the cover
Air bleeding and ventilation via
turbo connection
Hose-free
direct
connection for
turbo function
Air bleeding and ventilation via the
cover and open ventilation duct in the
installation space
Ensure air bleeding and ventilation via open recess
Caution: The set-screw in the cover must be removed for air
bleeding and ventilation
Connection for blow-out / air purge
The air connection for the blow-out air / air purge is achieved via
the bottom M7 connection thread by installation of a screw-in
union. Alternatively, the air supply can be actuated from a
channel bore hole leading out of the installation location of the

Assembly
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clamping module. To do this, a channel bore with seal seat must
be installed in the installation space. To seal this, the enclosed
O-ring Ø 6 x 5.5 (item 29) must be inserted in the seal seat.
Air flow for
exhaust function
Caution: The set-screw
must be removed from
the cover of the quick-
change pallet system for
deaeration (without
turbo function)
Air supply at the cone seal via the
seal on the base side (max. 2 bar)
Direct connection from installation
space with seal to cone seal via O-
ring Ø6 x 5.5
Air bleeding and ventilation for actuation
(without turbo function) in open recess
guaranteed
M7 screw-in union for Ø6/4 hose
open installation space
Blow-off support internal / external / torque pin and media
transfer unit
Automatic cleaning of the locating surfaces can be done by blowing
off the locating surface via three independent connections:
lIndex 5 connection: Blow-off of locating surfaces, internal
bolt pitch circle
lIndex 6 connection: Blow-off of locating surfaces, external
bolt pitch circle
lIndex 11 connection: Blow-off of locating surfaces, torque pin
or media transfer unit
Turbo connection
When using the turbo connection (if supply is connected), the
spring actuated locking procedure is actively supported with air
pressure, thereby enhancing the achievable pull down force. One
pressure pulse is sufficient to increase the force. The pressure line

Assembly
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can be decoupled afterwards without the pull-in force being
impaired. If the turbo connection is not used, it must be possible
to ventilate the relevant side of the piston.
Media transfer
The NSE-A3 138-V4-P versions are equipped with four media
transfer units on the bearing surface that can be connected when
depressurized. They can supply the clamping devices with
compressed air, hydraulic oil or vacuum pressure, for example.
The matching NW3 coupling nipples must be installed in the
opposite side to be connected. The transfer interfaces are
actuated on the bottom of the module. O-rings are used to seal
the channel bores against the bearing surface. The NW3 coupling
nipples to be used for the side of the clamping pallet as well as
the relevant installation drawing can be requested from SCHUNK.
NOTE
If the media transfer function is used, ensure that the coupling
elements are depressurized and ventilated when loading and
unloading the clamping pallet. The NSE-A3 138-V4-P1 model
has open media transfer sleeves made of rubber. The interface
drawing for the clamping pallet side can be requested from
SCHUNK.
Before starting the machining process, ensure that the change
unit is resting flat on the bearing surface of the quick-change
pallet system and is locked.
Connecting hose lines
If several quick-change pallet systems are activated via one
jointly connected hose line, feed lines with the following
minimum cross-sections must be used.
Number of modules At least nominal hose width
1 4 mm
2, 3, 4 6 mm
from 5 8 mm
When disconnecting hose lines, the relevant openings of the air
supply connections must be protected with seal plugs or sealing
caps to prevent the ingress of dirt or coolant.
Removal from the installation space
Detachable threads facilitate removal of the modules from the
installation space of the clamping stations. To pull off the
clamping module out of the installation space, two levering tools
(e.g. long cylindrical screws) are screwed diagonally into the two
available internal threads of the mounting holes.

Assembly
20 06.00 | NSE-A3 138 | VERO-S quick-change pallet system | en | 1376941
4.4.1 Mounting
Mounting in the installation space is with 6 M8 screws for the
version without torque pin V4, or with 5 M8 screws and a fitting
screw for the version with torque pin V4.
The assembly module can be positioned by means of two
centering diameters of the installation space:
Ø 110 H6 in the lower range. For partial and full installation.
Ø 138 H6 in the upper range.
Positional orientation for modules with torque pin V4 is achieved
with a fitting screw with a diameter of Ø 9 f7 x 5 mm. In order to
do this, make a Ø 9 H7 hole at a distance of 60.5 +/- 0.01 mm
from the axis of the centering diameter (Ø110 H6 / Ø138 H6) on the
mounting bolt circle.
The air connection is made via the bottom mounting holes in the
unit as standard.
Installation situation: partial installation
Bottom, hose-free direct connection
bolt pitch circle Ø 121
Installation situation: full installation