30.30.01.01648/06
www.schmalz.com
EN | 41
Fault
Possible cause
Solution
Vacuum level is not
reached or vacuum is
created too slowly
Leakage in hose line
Check hose connections
Leakage or wear on the sealing
plates/sealing
Check the sealing plates/sealing and re-
place if necessary
The separating or ventilation cylin-
der does not close correctly.
Check that the seals are okay and
whether there are hoses/accumulations
of dirt at the opening that prevent the
cylinder from sealing the opening.
The spacer sleeves between the
main body and the valve section
have been forgotten. The screws to
the connection were screwed too
tightly.
Reinstall the spacer sleeves. Tighten
the screws with the correct tightening
torque.
The load cannot be
held
Vacuum level too low
See above for possible causes
Suction force too weak for payload
Increase vacuum or connect additional
grippers if necessary
Check valves are dirty
Clean the valves; to do so, remove the
valve plates and masking film
The area gripper is not pressed
firmly enough onto the workpiece
to be lifted
Press the area gripper more firmly onto
the surface. On even surfaces, we rec-
ommend that the foam compress by at
least 50%.
Too short retention time for the
area gripper on the workpiece
Extend the retention time
Too fast or jerky lifting of work-
pieces
Optimize the motion. Avoid acceleration
peaks (especially when lifting the work-
pieces)
The workpieces to be lifted are not
suitable for the area grippers (e.g.
non-rigid).
Use a different gripping system.
External vacuum gen-
erator works, but
workpieces are not
picked up
If present: The dust filter of the
vacuum generator is dirty
Clean or replace dust filter
The sealing mat is damaged/torn
Replace sealing mat
Workpiece is too heavy
Workpiece is not suitable
The sealing ring of the separating
cylinder is damaged
Replace the sealing ring
The suction bar’s slider is clogged
with chips or resin
For information on cleaning the sliders
and check valves, see Section 9.3
L x W x H
– proportions of the
parts to be lifted are not correct
Workpiece is not suitable Minimum
workpiece width: 50 mm.
Vacuum is too high
Determine the maximum possible vac-
uum of the vacuum generator; check
the system for leaks (hose connections,
sealing, etc.); valves are dirty; the work-
piece is too porous
The sealing mat is not applied
firmly enough
Press the area gripper more firmly onto
the surface. On even surfaces, we rec-
ommend that the foam compress by at
least around 50%.
