Page 55 - Schmalz - Vacuum Components

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PA01019111_inh_EN.pdf
Vacuum Knowledge
Units and Conversion Tables
PA01019111_inh_EN.pdf Units and Symbols PA01019111_inh_EN.pdf

Dimensions and volume Weight Schmalz - The Company
Parameter Symbol Unit in Parameter Symbol Unit in
Schmalz catalog Schmalz catalog
Length L mm, m Mass m g, kg
Width W mm, m Density ρ kg/m 3 Vacuum Knowledge
Height H mm, m
Diameter d mm, m
Volume V m , l
3
Vacuum Suction Cups
Force Time
Parameter Symbol Unit in Parameter Symbol Unit in
Schmalz catalog Schmalz catalog
Force F N, kg x m/s 2 Duration, evacuation time t ms, s, min, h Grippers
Theoretical holding force F N Speed v m/s Special
TH
2
Acceleration F N Acceleration a, g m/s , g
a
Tear-off force F N
A
Weight G N Vacuum Grip- ping Systems
Friction coefficient µ -
Temperature Electrical and magnetic values
Parameter Symbol Unit in Parameter Symbol Unit in Mounting
Schmalz catalog Schmalz catalog Elements
Temperature t °C Voltage U V
Strength of current l A
Vacuum Generators
Vacuum values Other information

Parameter Symbol Unit in Parameter Symbol Unit in
Schmalz catalog Schmalz catalog
Pressure, absolute p mbar, bar Safety factor S - Technology
Pressure difference ∆p mbar, bar Quantity of suction cups n - Valve
Initial pressure P a mbar, bar Natural logarithm ln -
Final pressure P e mbar, bar Noise level / sound L p dB
Negative pressure / vacuum P u mbar, bar pressure level
3
Suction rate V l/min, m /h Switches and Monitoring
3
Required suction V S l/min, m /h
rate
3
Nominal flow of V V l/min, m /h
solenoid valve
3
Present suction rate of V VE l/min, m /h Filters and Connections
vacuum generator
3
Total volume to be V G m , l
evacuated
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PA01019111_inh_EN.pdf