SCHUNK GFS 16 User instructions

Assembly and Operating Manual
GFS
Swivel finger
Translation of Original Operating
Manual

Imprint
2 07.00 | GFS | Assembly and Operating Manual | en | 389090
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: 389090
Version: 07.00|21/07/2023|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 Applicable documents ................................................................. 5
1.1.2 Presentation of Warning Labels ..................................................... 5
1.2 Warranty ........................................................................................... 6
1.3 Scope of delivery................................................................................. 6
1.3.1 Accessories kit ........................................................................... 6
1.4 Accessories ........................................................................................ 7
1.4.1 Seal kit .................................................................................... 7
2 Basic safety notes ................................................................................ 8
2.1 Intended use...................................................................................... 8
2.2 Not intended use ................................................................................ 8
2.3 Constructional changes......................................................................... 8
2.4 Spare parts ........................................................................................ 9
2.5 Ambient conditions and operating conditions ........................................... 9
2.6 Personnel qualification ........................................................................ 9
2.7 Personal protective equipment .............................................................. 10
2.8 Notes on safe operation........................................................................ 10
2.9 Transport........................................................................................... 10
2.10 Malfunctions ...................................................................................... 11
2.11 Disposal ............................................................................................ 11
2.12 Fundamental dangers .......................................................................... 11
2.12.1 Protection during handling and assembly ....................................... 11
2.12.2 Protection during commissioning and operation ............................... 12
2.12.3 Protection against dangerous movements ....................................... 12
2.12.4 Protection against electric shock.................................................... 13
2.13 Notes on particular risks ....................................................................... 14
3 Technical data ..................................................................................... 15
4 Assembly............................................................................................ 16
4.1 Mechanical connection......................................................................... 16
4.2 Air connection .................................................................................... 17
4.3 Magnetic Switch MMS 30 ....................................................................... 19
5 Setting tasks ....................................................................................... 21
5.1 Rotating angle adjustment.................................................................... 21
5.2 Shock absorber adjustment ................................................................... 21
5.3 Adjustments for GFS driven on both sides ................................................. 22

Table of contents
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6 Troubleshooting................................................................................... 23
6.1 Does the swivel jaw not move? .............................................................. 23
6.2 Does the swivel jaw not make a complete stroke? ...................................... 23
6.3 Loss of power?.................................................................................... 23
7 Maintenance ....................................................................................... 24
7.1 Notes................................................................................................ 24
7.2 Maintenance and care intervals ............................................................. 24
7.3 Lubricants/Lubrication points (basic lubrication) ....................................... 24
7.4 Disassembling the product .................................................................... 25
7.4.1 Dismantling the swivel jaw .......................................................... 25
7.4.2 Disassembling the idler unit ......................................................... 26
7.4.3 Installing and removing a shock absorber ....................................... 26
7.5 Servicing and assembling the product ..................................................... 27
7.5.1 Screw tightening torques ............................................................. 27
8 Assembly drawings ............................................................................... 28
8.1 Idler unit assembly drawing .................................................................. 28
8.2 Swiveling beam assembly drawing.......................................................... 29
9 Translation of the original declaration of incorporation ................................. 30
10 UKCA declaration of incorporation ............................................................ 31
11 Information on the RoHS Directive, REACH Regulation and Substances of Very High
Concern (SVHC) ..................................................................................... 32

General
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1 General
1.1 About this manual
This manual contains important information for a safe and
appropriate use of the product.
This manual is an integral part of the product and must be kept
accessible for the personnel at all times.
Before starting work, the personnel must have read and
understood this operating manual. Prerequisite for safe working
is the observance of all safety instructions in this manual.
In addition to these instructions, the documents listed
under }1.1.1 [/5] are applicable.
NOTE: The illustrations in this manual are intended to provide a
basic understanding and may deviate from the actual version.
1.1.1 Applicable documents
lGeneral terms of business *
lCatalog data sheet of the purchased product *
The documents labeled with an asterisk (*) can be downloaded
from schunk.com.
1.1.2 Presentation of Warning Labels
To make risks clear, the following signal words and symbols are
used for safety notes.
WARNING
Dangers for persons!
Non-observance can lead to irreversible injury and even death.
CAUTION
Dangers for persons!
Non-observance can cause minor injuries.
CAUTION
Material damage!
Information about avoiding material damage.

General
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1.2 Warranty
If the product is used as intended, the warranty is valid for 24
months from the ex-works delivery date under the following
conditions:
lObserve the specified maintenance and lubrication intervals
lObserve the ambient conditions and operating conditions
Parts touching the workpiece and wear parts are not included in
the warranty.
1.3 Scope of delivery
The scope of delivery includes
lSwivel finger GFS in the version ordered
lAssembly and Operating Manual
lAccessory pack
1.3.1 Accessories kit
Content of the accessory pack:
lCentering sleeve
lScrew
lO-ring
lFitting screw
lSplit washer
Accessory pack for ID number
GFS 16 5511459
GFS 25 5511460
GFS 32 5511461
GFS 40 5510235

General
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1.4 Accessories
A wide range of accessories are available for this product
For information regarding which accessory articles can be used
with the corresponding product variants, see catalog data sheet.
1.4.1 Seal kit
Seal kit for ID number
GFS 16 0370882
GFS 25 0370883
GFS 32 0370884
GFS 40 0370885
contents of the sealing kit,}8 [/28].

Basic safety notes
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2 Basic safety notes
2.1 Intended use
The product may only be used for swiveling permissible
attachment parts or workpieces.
lThe product may only be used within the scope of its technical
data, }3 [/15].
lWhen implementing and operating components in safety-
related parts of the control systems, the basic safety principles
in accordance with DIN EN ISO 13849-2 apply. The proven
safety principles in accordance with DIN EN ISO 13849-2 also
apply to categories 1, 2, 3 and 4.
lThe product is intended for installation in a machine/
automated system. The applicable guidelines for the machine/
automated system must be observed and complied with.
lThe product is intended for industrial and industry-oriented
use.
lAppropriate use of the product includes compliance with all
instructions in this manual.
2.2 Not intended use
It is not intended use if the product is used, for example, as a
pressing tool, stamping tool, lifting gear, guide for tools, cutting
tool, clamping device or a drilling tool.
lAny utilization that exceeds or differs from the appropriate
use is regarded as misuse.
2.3 Constructional changes
Implementation of structural changes
By conversions, changes, and reworking, e.g. additional threads,
holes, or safety devices can impair the functioning or safety of
the product or damage it.
lStructural changes should only be made with the written
approval of SCHUNK.

Basic safety notes
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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.
lUse only original spare parts or 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 to
the product's life span.
lMake sure that the product is used only in the context of its
defined application parameters, }3 [/15].
2.6 Personnel qualification
Inadequate qualifications of the personnel
If the personnel working with the product is not sufficiently
qualified, the result may be serious injuries and significant
property damage.
lAll work may only be performed by qualified personnel.
lBefore working with the product, the personnel must have
read and understood the complete assembly and operating
manual.
lObserve the national safety regulations and rules and general
safety instructions.
The following personal qualifications are necessary for the
various activities related to the product:
Trained electrician Due to their technical training, knowledge and experience,
trained electricians are able to work on electrical systems,
recognize and avoid possible dangers and know the relevant
standards and regulations.
Qualified personnel Due to its technical training, knowledge and experience,
qualified personnel is able to perform the delegated tasks,
recognize and avoid possible dangers and knows the relevant
standards and regulations.
Instructed person Instructed persons were instructed by the operator about the
delegated tasks and possible dangers due to improper behaviour.
Service personnel of
the manufacturer
Due to its technical training, knowledge and experience, service
personnel of the manufacturer is able to perform the delegated
tasks and to recognize and avoid possible dangers.

Basic safety notes
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2.7 Personal protective equipment
Use of personal protective equipment
Personal protective equipment serves to protect staff against
danger which may interfere with their health or safety at work.
lWhen working on and with the product, observe the
occupational health and safety regulations and wear the
required personal protective equipment.
lObserve the valid safety and accident prevention regulations.
lWear protective gloves to guard against sharp edges and
corners or rough surfaces.
lWear heat-resistant protective gloves when handling hot
surfaces.
lWear protective gloves and safety goggles when handling
hazardous substances.
lWear close-fitting protective clothing and also wear long hair
in a hairnet when dealing with moving components.
2.8 Notes on safe operation
Incorrect handling of the personnel
Incorrect handling and assembly may impair the product's safety
and cause serious injuries and considerable material damage.
lAvoid any manner of working that may interfere with the
function and operational safety of the product.
lUse the product as intended.
lObserve the safety notes and assembly instructions.
lDo not expose the product to any corrosive media. This does
not apply to products that are designed for special
environments.
lEliminate any malfunction immediately.
lObserve the care and maintenance instructions.
lObserve the current safety, accident prevention and
environmental protection regulations regarding the product's
application field.
2.9 Transport
Handling during transport
Incorrect handling during transport may impair the product's
safety and cause serious injuries and considerable material
damage.
lWhen handling heavy weights, use lifting equipment to lift
the product and transport it by appropriate means.

Basic safety notes
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lSecure the product against falling during transportation and
handling.
lStand clear of suspended loads.
2.10 Malfunctions
Behavior in case of malfunctions
lImmediately remove the product from operation and report
the malfunction to the responsible departments/persons.
lOrder appropriately trained personnel to rectify the
malfunction.
lDo not recommission the product until the malfunction has
been rectified.
lTest the product after a malfunction to establish whether it
still functions properly and no increased risks have arisen.
2.11 Disposal
Handling of disposal
The incorrect handling of disposal may impair the product's
safety and cause serious injuries as well as considerable material
and environmental harm.
lFollow local regulations on dispatching product components
for recycling or proper disposal.
2.12 Fundamental dangers
General
lObserve safety distances.
lNever deactivate safety devices.
lBefore commissioning the product, take appropriate
protective measures to secure the danger zone.
lDisconnect power sources before installation, modification,
maintenance, or calibration. Ensure that no residual energy
remains in the system.
lIf the energy supply is connected, do not move any parts by
hand.
lDo not reach into the open mechanism or movement area of
the product during operation.
2.12.1 Protection during handling and assembly
Incorrect handling and assembly
Incorrect handling and assembly may impair the product's safety
and cause serious injuries and considerable material damage.

Basic safety notes
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lHave all work carried out by appropriately qualified
personnel.
lFor all work, secure the product against accidental operation.
lObserve the relevant accident prevention rules.
lUse suitable assembly and transport equipment and take
precautions to prevent jamming and crushing.
Incorrect lifting of loads
Falling loads may cause serious injuries and even death.
lStand clear of suspended loads and do not step into their
swiveling range.
lNever move loads without supervision.
lDo not leave suspended loads unattended.
2.12.2 Protection during commissioning and operation
Falling or violently ejected components
Falling and violently ejected components can cause serious
injuries and even death.
lTake appropriate protective measures to secure the danger
zone.
lNever step into the danger zone during operation.
2.12.3 Protection against dangerous movements
Unexpected movements
Residual energy in the system may cause serious injuries while
working with the product.
lSwitch off the energy supply, ensure that no residual energy
remains and secure against inadvertent reactivation.
lNever rely solely on the response of the monitoring function
to avert danger. Until the installed monitors become effective,
it must be assumed that the drive movement is faulty, with its
action being dependent on the control unit and the current
operating condition of the drive. Perform maintenance work,
modifications, and attachments outside the danger zone
defined by the movement range.
lTo avoid accidents and/or material damage, human access to
the movement range of the machine must be restricted. Limit/
prevent accidental access for people in this area due through
technical safety measures. The protective cover and protective
fence must be rigid enough to withstand the maximum
possible movement energy. EMERGENCY STOP switches must be
easily and quickly accessible. Before starting up the machine

Basic safety notes
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or automated system, check that the EMERGENCY STOP system
is working. Prevent operation of the machine if this protective
equipment does not function correctly.
2.12.4 Protection against electric shock
Possible electrostatic energy
Components or assembly groups may become electrostatically
charged. When the electrostatic charge is touched, the discharge
may trigger a shock reaction leading to injuries.
lThe operator must ensure that all components and assembly
groups are included in the local potential equalisation in
accordance with the applicable regulations.
lWhile paying attention to the actual conditions of the working
environment, the potential equalisation must be
implemented by a specialist electrician according to the
applicable regulations.
lThe effectiveness of the potential equalisation must be
verified by executing regular safety measurements.

Basic safety notes
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2.13 Notes on particular risks
WARNING
Risk of injury due to residual energy in the shock absorber
Uncontrolled movements of the rotational axis are possible.
WARNING
Risk of injury from objects falling and being ejected!
Falling and ejected objects during operation can lead to serious
injury or death.
l
Take appropriate protective measures to secure the danger
zone.
Generally valid:
lRemove the energy supplies before installation, modification,
maintenance, or adjustment work.
lMake sure that no residual energy remains in the system.
lDo not move parts by hand when the energy supply is
connected.
lDo not reach into the open mechanism or the movement area
of the unit.
lPerform maintenance, modifications, and additions outside
the danger zone.
lSecure the product during all operations against uncontrolled
activation.
lTake a precautionary approach by maintenance and
disassembly.
l
Only specially trained staff should disassemble the product.
WARNING
Risk of injury due to unexpected movements of the machine/
system!
Movements of the axes, rotating parts and moving the gripper
jaws may cause serious injuries.
lSwitch off the energy supply before starting with assembly
and adjustment works.
lMake sure there is no residiual energy in the system.

Technical data
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3 Technical data
Size 16 25 32 40
Weight [kg] 0.69 1.6 3.0 5.0
Nominal torque [Nm] 0.64 2.35 5.0 10.0
Ambient temperature [°C]
Min.
Max.
5
60
IP rating 54
Pressure medium Compressed air, compressed air
quality according to ISO
8573-1:2010 [7:4:4]
Nominal working pressure [bar] 6
Min. pressure [bar] 3
Max. pressure [bar] 8
Noise emission [dB(A)] ≤ 70
More technical data is included in the catalog data sheet.
Whichever is the latest version.

Assembly
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4 Assembly
4.1 Mechanical connection
Evenness of the
mounting surface
The values apply to the whole mounting surface to which the
product is mounted.
Edge length Permissible unevenness
< 100 < 0.02
> 100 < 0.05
Tab.: Requirements for evenness of the mounting surface (Dimensions in mm)
CAUTION
Heightened play and wear with off-center attachments.
lAn idler unit must be used with off-center attachments.
Mounting
Assembly options
Item GFS 16 GFS 25 GFS 32 GFS 40
1 M5 M8 M10 M12
2 Ø 8 x 5.2 Ø 12 x 6.6 Ø 14 x 8.6 Ø 16 x 8.6
3 M4 x 20 M6 x 30 M8 x 35 M10 x 40
The swivel jaw or the idler unit can be fastened at each of the
two internal threads or using screws (92) from the accessory
pack. For centering, use the centering sleeve (91) from the
accessory pack.

Assembly
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4.2 Air connection
CAUTION
Observe the requirements for the air supply
}3 [/15].
Air connection
Tab.: Thread diameter of the air connections
Item Connection GFS 16 GFS 25 GFS 32/40
1 Hose-free direct connection 2 x M3 2 x M4 2 x M5
2 Main connections 2 x M5 2 x R1/8"
3 Hose-free direct connection 2 x M3 2 x M4 2 x M5
Air connection A for swivel direction »1«
Air connection B for swivel direction »2«
lOnly open the air connections required.
lSeal air connections not required using the locking screws
from the enclosed pack.
lFor hose-free direct connections use the two O-rings from the
enclosed pack.

Assembly
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lUse the supplied one-way flow control valves for connection
(these are used for setting of the swiveling at the fully
assembled system).
Hose-free direct connection
Item M3 M4 M5
1 Adapter
2 Gripper finger
3 O-ring Ø3 x 1 O-ring Ø4 x 1 O-ring Ø5 x 1
CAUTION
The central air supply unit must be equipped with a
maintenance unit that is positioned as near as possible to the
consumer.
Further information on the hose-free direct connection contains
the catalog data sheet.

Assembly
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4.3 Magnetic Switch MMS 30
brown
black
blue
load closer
CAUTION
Material damage due to an incorrect tightening torque!
If the threaded pin is tightened with an incorrect tightening
torque, the product may be damaged.
lObserve a maximum tightening torque of 10 Ncm for the set-
screws.
NOTE
Ferromagnetic material changes the switching positions of the
sensor. For example: Adapter plate made of ordinary steel.
At ferromagnetic adapter plates:
lFirst mount the product on the adapter plate.
lThen set the position of the magnetic switch.
Assembly of the
magnetic switch
The magnetic switches can be mounted via four grooves in the
housing of the
module. Adjusting the switching position
is carried out as follows:
1. Position the unit in the desired rotation angle.
2. Insert the magnetic switch in the groove.
3. Move the magnetic switch along the groove until the
magnetic switch starts to switch.
4. Secure the magnetic switch. (see enclosed data sheet)
5. Check the switching position of the magnetic switch by
swiveling the module multiple times.

Assembly
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NOTE
For monitoring the locked center position it is recommended to
use four magnetic switches:
ltwo sensors for monitoring each of the two end positions
lfor monitoring the approach of the center position from the
stop position 0°
lfor monitoring the approach of the center position from the
stop position 180°