Approach to System Design
The implementation from theory to practice is shown with a system design based on an example. The Schmalz Calculator in the "Services" section provides helpful support for system design.
Flowchart for system design
Calculation of forces
Suction cups
Mounting elements
Vacuum hoses
Distributors
Vacuum generators
Solenoid valves
Vacuum switches
The following calculations are based on this application:
Workpiece
Material: Steel sheets, stacked on a pallet
Surface: Smooth, level, dry
Dimensions:
Length: max. 2,500 mm
Width: max. 1,250 mm
Thickness: max. 2.5 mm
Weight: approx. 60 kg
Handling system
Used system: Gantry handling system
Existing compressed air: 8 bar
Control voltage: 24 V DC
Working sequence: Horizontal Pick & Place
A steel sheet is picked up from a pallet, lifted, transported horizontally and deposited in a machining center.
Max. acceleration:
X, Y axis: 5 m/s2
Z axis: 5 m/s2
Cycle time: 30 s
Scheduled time:
for pick-up: < 1s
for releasing: < 1s
Schmalz Calculator
Weight Calculation of a Workpiece
Theoretical Holding Force of a Suction Cup
Suction Cup Selection
Mounting Elements Selection
Vacuum Hose Selection
Distributor Selection
Vacuum Generator Selection
Valve Technology Selection
Vacuum Switch Selection
Calculation of Evacuation Times
