Assembly
28
25.00 | DPZ-plus | Assembly and Operating Manual | en | 389035
Actuation with air
purge
Close
Air purge
Open
Air purge actuation plan
The use of air purge changes the gripping forces. Air purge
pressure reduces the gripping force on closing and increases it on
opening.
Changes in gripping forces that arise due to air purge
Air purge pressure
DPZ-plus
40
50
64
80
100
125
160
200
0.2 bar
12 N
17 N
20 N
39 N
42 N
66 N
102 N 162 N
0.3 bar
18 N
26 N
30 N
58 N
63 N
99 N
153 N 243 N
0.4 bar
24 N
35 N
40 N
77 N
84 N
132 N 204 N 324 N
0.5 bar
30 N
44 N
50 N
96 N
105 N 164 N 255 N 405 N
When using air purge, the gripping forces may be calculated using
the following formulas. The changes in gripping force using air
purge from the table above are used for this.
Gripping force on opening:
F
G, opening
= F
G, nominal
+ F
air purge
Gripping force on closing:
F
G, closing
= F
G, nominal
- F
air purge
Example:
DPZ-plus 80 (stroke 1,
nominal pressure = 6 bar, air purge pressure= 0.5 bar, closing force = ?)
Closing force (from catalog)
900 N (at 6 bar)
Gripping force change (from table)
- 96 N (at 0.5 bar)
Closing force at air purge pressure 0.5 bar
804 N
