de
en
cs
da
es
fi
fr
hr
hu
it
lt
nl
pl
pt
ro
ru
sl
sv
GARANT Grid vacuum plate Venturi system VRV0
1.
Identification data
Manufacturer
Hoffmann Supply Chain GmbH
Poststraße 15
90471 Nuremberg
Germany
Brand
GARANT
Product
Grid vacuum plate Venturi system 125 x
200 mm
Version
01 Translation of the original instruction
manual
Date created
10/2021
2.
General instructions
Read the instructions for use, follow them and keep them available for later
reference.
2.1.
SYMBOLS AND MEANS OF REPRESENTATION
Warning symbols
Meaning
DANGER
Indicates a hazard which if not avoided
will lead to death or serious injury.
WARNING
Indicates a hazard which if not avoided
may lead to death or serious injury.
CAUTION
Indicates a hazard which if not avoided
may lead to minor or moderate injury.
NOTICE
Indicates a hazard which if not avoided
may lead to damage to property.
i
Indicates useful tips and instructions to-
gether with information for efficient and
problem-free operation.
2.2.
EXPLANATION OF TERMS
The term “vacuum plate” is used in this instruction handbook to refer to the grid va-
cuum plate Venturi system.
3.
Safety
3.1.
GROUPED SAFETY MESSAGES
Risk of injury due to pneumatic energy
Pneumatic energy can cause injuries.
»
Before working on the pneumatic system, fully depressurise it.
»
Do not mount a workpiece whilst the plate is under vacuum.
A falling workpiece and sharp edges
Crush hazard and laceration hazard for the hands and feet.
»
Wear safety shoes and safety gloves.
3.2.
INTENDED USE
To clamp and secure workpieces with simple shapes and rough surfaces.
For industrial use.
Use only in a technically perfect and safe condition.
3.3.
REASONABLY FORESEEABLE MISUSE
Do not use in potentially explosive atmospheres.
Do not make any unauthorised modifications.
3.4.
PERSONAL PROTECTIVE EQUIPMENT
Comply with the national and regional regulations for safety and accident preven-
tion. Wear safety glasses, safety shoes and safety gloves at all times.
3.5.
DUTIES OF THE OPERATING COMPANY
The operating company must ensure that personnel who work on the product com-
ply with the regulations and provisions together with the following instructions:
National and regional regulations for safety, accident prevention and environ-
mental protection regulations.
No damaged products are assembled, installed or commissioned.
The necessary protective equipment is provided.
Ensure employees have been instructed and trained.
Clearly specify personnel responsible for the various activities and check compli-
ance.
3.6.
PERSONNEL QUALIFICATIONS
Specialists for mechanical work
Specialists in the sense of this documentation are persons who are familiar with as-
sembly work, mechanical installation, commissioning, troubleshooting and mainten-
ance of the products and who possess the following qualifications:
Qualification / training in the field of mechanics as specified in the nationally ap-
plicable regulations.
Trained person
Trained persons in the sense of this documentation are persons who have been
trained to perform work in the areas of transport, storage and operation.
4.
Device overview
A
1 Grid (clamping face) with grooves
for sealing cord
4 Venturi vacuum pump
2 Back-stop disc, height adjustable
5 Compressed air connection
3 Bore for pulling vacuum
4.1.
SCOPE OF SUPPLY
1x grid vacuum plate 125 mm x 200 mm
Back-stop discs (height adjustable, eccentrically mounted)
1x sealing cord 4mm (Ø4 mm, length 10 m)
1x shut-off valve
1x compressed air hose 10/8 PUR (length 1 m)
5.
Transport
Use appropriately sized means of transport. If necessary, use edge protectors.
i
Immediately on receipt check the product for damage in transport. If the product is
damaged, do not install or commission it.
6.
Assembly and installation
Specialist mechanical fitter
6.1.
WITHIN A CLAMPING FIXTURE
1. Clamp the vacuum plate with its long side in a suitable clamping fixture. Be sure
to leave sufficient room for the Venturi nozzles and compressed air hose connec-
tion.
6.2.
INSTALLATION OF THE COMPRESSED AIR
NOTICE
Damage due to liquid taken up by suction
Liquids that penetrate between the clamping face and workpiece seating face can
damage the Venturi vacuum pump and reduce the coefficient of friction of the work-
piece.
»
Check that the workpiece is securely seated.
1. Connect a compressed air hose with a shut-off valve (included in the scope of
supply) to the screwed connector for the Venturi vacuum pump.
2. Connect the other end of the compressed air hose to the 7.2 mm hose coupling
adaptor.
3. Connect the 7.2 mm hose coupling adaptor to the compressed air supply.
»
The compressed air is now installed.
6.3.
MOUNTING THE BACK-STOP DISC
i
The purpose of the back-stop discs is the alignment of workpieces on the vacuum
plate.
1. Undo the knurled nut.
2. Rotate the back-stop disc until it projects above the edge of the vacuum plate.
3. Tighten the knurled nut.
7.
Operation
7.1.
CLAMPING A WORKPIECE
CAUTION
Risk of injury due to a loose workpiece
Workpieces that come loose from the vacuum plate can cause injuries.
»
Before starting to machine the workpiece, check that the workpiece is securely
restrained.
»
Machining forces must be less than the restraining forces.
»
If the workpiece is subjected to higher forces, restrain it using back-stop discs.
»
Arrange the back-stop discs to counteract the machining forces or feed move-
ments.
B
,
C
i
Lay the sealing cord into the grid of the vacuum plate to match the workpiece con-
tour and prevent loss of vacuum.
NOTICE! Moisten the hands to lay the sealing cord.
ü
There must be no burrs or unevennesses on the contact face of the workpiece.
ü
Contact area between the vacuum plate and workpiece cleaned.
1. Cut the sealing cord to suit the size of the workpiece.
2. Insert the sealing cord into the recesses of the grid face, following the dimen-
sions of the workpiece (1).
NOTICE! The bore for pulling vacuum must lie within the area enclosed by
the sealing cord.
3. Insert the sealing cord, butting the ends against each other. Do not compress the
sealing cord or stretch it.
4. Place the workpiece on the sealing cord. If necessary, align the back-stop discs
(2).
5. Switch on the vacuum and clamp the workpiece.
»
The optimum operating pressure for the Venturi vacuum pump is 4.0 bar.
8
Summary of Contents for VENTURI VRV0
Page 2: ...A 1 2 3 4 5 B 1 C 2 2...
Page 3: ...www hoffmann group com 3...
Page 58: ...58...
Page 59: ...www hoffmann group com 59...
