Hardware Specification
116
Vacuum
Vacuum is defined as the percentage of absolute vacuum achieved relative to atmospheric
pressure, i.e.:
The vacuum in kPa setting is the target vacuum. The pump will run at full speed until the target
vacuum is achieved, and then run at a lower speed necessary to maintain the target vacuum.
The pressure in the atmosphere varies with weather, temperature and altitude. The VG
grippers automatically compensate for altitudes up to 2km, where the pressure is about 80%
of sea level.
Air flow
Air flow is the amount of air that must be pumped to maintain the target vacuum. A completely
tight system will not have any air flow, whereas real life applications have some smaller air
leakages from two different sources:
•
Leaking vacuum cup lips
•
Leaking workpieces
The smallest leak under a vacuum cup can be hard to find (see picture below).
Leaking workpieces can be even harder to identify. Things that look completely tight might not
be tight at all. A typical example is coarse cardboard boxes. The thin outer layer is often
requiring a lot of air flow to create a pressure difference over it (see figure below).
Therefore, the users must be aware of the following:
•
VG grippers are not suitable for most uncoated, coarse cardboard boxes.
% vacuum Bar
kPa
inHg
Typically used for
0%
0.00rel.
1.01 abs.
0.00rel.
101.3
abs.
0.0rel.
29.9 abs. No vacuum / No lifting capacity
20%
0.20rel.
0.81 abs.
20.3rel.
81.1 abs.
6.0rel.
23.9 abs. Cardboard and thin plastics
40%
0.41rel.
0.61 abs.
40.5rel.
60.8 abs.
12.0rel.
18.0 abs. Light workpieces and long suction cup life span
60%
0.61rel.
0.41 abs.
60.8rel.
40.5 abs.
18.0rel.
12.0 abs. Heavy workpieces and strongly secured grips
80%
0.81rel.
0.20 abs.
81.1rel.
20.3 abs
23.9rel.
6.0 abs. Max. vacuum. Not recommended
Summary of Contents for 3FG15
Page 1: ...USER MANUAL FOR HANWHA ROBOTS ORIGINAL INSTRUCTION EN v1 1 6...
Page 28: ...Installation 28 Then click Apply...
Page 91: ...Hardware Specification 91 RG2 Gripping Speed Graph RG2 Work Range...
Page 94: ...Hardware Specification 94 RG6 Gripping Speed Graph RG6 Work Range...
Page 134: ...Hardware Specification 134 3FG15 All dimensions are in mm and inches...
Page 135: ...Hardware Specification 135 RG2 FT All dimensions are in mm and inches...
Page 136: ...Hardware Specification 136 RG2 All dimensions are in mm and inches...
Page 137: ...Hardware Specification 137 RG6 All dimensions are in mm and inches...
Page 138: ...Hardware Specification 138 Screwdriver All dimensions are in mm and inches...
Page 140: ...Hardware Specification 140 VG10 All dimensions are in mm and inches...
Page 141: ...Hardware Specification 141 All dimensions are in mm and inches...
Page 142: ...Hardware Specification 142 VGC10 All dimensions are in mm and inches...
Page 143: ...Hardware Specification 143 All dimensions are in mm and inches...
Page 144: ...Hardware Specification 144 Quick Changer Tool side All dimensions are in mm and inches...
Page 154: ...Certifications 154 9 Certifications...
Page 155: ...Certifications 155...
Page 156: ...Certifications 156...
Page 157: ...Certifications 157...
Page 158: ...Certifications 158...
Page 159: ...Certifications 159...
Page 160: ...Certifications 160...
Page 161: ...Certifications 161...
