EnErgy EfficiEncy in blank production

Energy efficiency in
blank production
Efficiency along the line.
Automation from Schuler.
Energy efficiency as a competitive advantage
are based on the latest scientific findings on the energy
efficiency of machines. An advantage that can give our
When it comes to producing blanks, energy costs account
customers a decisive lead over their global competitors.
for a significant share of a press line’s life cycle costs.
However, investment decisions are still often based
As energy-saving potential depends largely on the material
purely on the line’s purchase price, without considering
being processed and the operating mode of individual ma-
its operating or energy costs.
chine parts, there can be significant variations. At present,
the greatest energy savings can be achieved when processing
Schuler’s blanking lines are designed and developed specifi-
aluminum and when operating the press in pendular mode.
cally from the aspect of energy saving. Thanks to numerous
research projects – e. g. Schuler is part of the Fraunhofer
In the years 2009 to 2012 alone, the development of our
Institute’s “Innovation Alliance Green Carbody Technologies”
press lines has led to a significant energy savings potential
(the alliance is sponsored by the German
based on a typical product mix for automotive stamping
Ministry of Education and Research and
plants of around 120 kW for steel and around 180 kW for
supported by the Project Management
Agency Karlsruhe) – our technologies
Coil feed line
Servo press
Stop2Drop stacking device
Hydraulic unit
Energy efficiency measures of
‚‚ Pendular stroke capability
Schuler blanking lines
‚‚ Modern energy storage management to balance out
energy peaks
Coil feed line and whole line
Stop2Drop stacking device
‚‚ Modern ALM infeed modules (cosΦ≈1)
‚‚ Number of conveyor belts reduced from 6 to 4
‚‚ Regenerative power supply modules
‚‚ Friction coefficients on conveyor belts reduced
‚‚ Energy recovery from regenerative power share of all
Specifically for processing aluminum:
main drives
‚‚ Optimized drive efficiency (controlling excitation current
in the front-of-line and end-of-line areas)
‚‚ Vacuum created by fan (instead of venturi nozzles)
‚‚ Optimized suction nozzles
‚‚ Enlarged holding surfaces
‚‚ As-needed control of external motor fan
‚‚ Reduced pressure losses in the lines
‚‚ Use of low-friction bearings
‚‚ Fan with frequency converters to adapt suction to
‚‚ Highly efficient transmission
thickness and geometry of blanks
‚‚ Intelligent pause switching
Hydraulic unit
Servo press
‚‚ Separation of permanent and temporary consumers:
‚‚ Highly efficient main drive with torque motor
‚‚ Energy storage for intermediate storing of regenerative
power from torque motors
coil feed separate from stacking table and coil loading cart
‚‚ Pump controlled by frequency converters
‚‚ Optimized hydraulic components: use of globe valves,
‚‚ No slide counterbalance (no mechanical slide counterbalance losses)
digital hydraulics, plug amplifier with pulse width
‚‚ No hydraulic clutch-brake combination (no hydraulic losses)
Contact us!
We look forward to developing a tailored energy efficiency concept together with you based on your particular production data.
This applies to both new machines and retrofits for existing equipment.
Contact: Schuler Automation Hessdorf, Sales Manager Blanking Lines, Normann Blasig, Phone +49 9135 715-210,
Fax +49 9135 715-109, e-mail:
For more information, simply scan the QR code
with the camera of your smartphone or tablet.
Blanking lines
Schuler Automation GmbH & Co. KG
Louis-Schuler-Strasse 1
91093 Hessdorf
Phone +49 9135 715-210
Fax +49 9135 715-44210
Schuler Service Phone +49 9135 715-358
Schuler Service Fax +49 9135 715-249
609EN-102013-WSP-500-Copyright by Schuler
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