Festo DNCKE S Serie Instrucciones De Utilizacion página 47

DNCKE−...−S / KEC−...−S
Case 3: Test with additional weight force upright:
• Calculate the required test pressure P
( F
* m
P
P +
A
A
Size
Test force F
P
Piston area A Returning direction
must not exceed 10 bar (è 13 Technical data).
1) The test pressure P
A
Even with a calculation result of Pa > 10 bar, only the maximum test pressure of 10 bar may be applied.
Tab. 11
Static functional test
Place the piston rod in the advanced end position.
Exhaust port (2 è Fig. 1).
The clamp is active.
Pressurise cylinder chamber of
the DNCKE in the returning direction
with test pressure P (è Tab. 11) while
A
simultaneously exhausting the cylinder
chamber in the advancing direction.
The test force (test pressure) should last 60 s. During this time, the piston must not move further.
Tab. 12
Festo – DNCKE−...−S / KEC−...−S – 1511b English
1)
using the following equation:
A
g )
10
DNCKE
[N]
[sq. mm]
Dynamic brake test
Pressurise cylinder chamber of the DNCKE in the returning
direction with test pressure P
simultaneously exhausting the cylinder chamber in
the advancing direction.
– The movement begins (danger of crushing).
– The max. permissible travel speed must not be
exceeded.
Exhaust port (2 è Fig. 1).
– Braking begins
– The cylinder stops.
Determine path from the exhaust start signal until
the cylinder is at rest.
– This path equals the overtravel.
Fig. 23
P = test pressure [bar]
A
F = test force [N]
P
m = effective load [kg]
g = acceleration due to gravity [9.81 m/s
A = piston surface area [sq. mm]
40 63
1300 3200
1055 2803
A
P
A
2
]
100
8000
7363
(è Tab. 11) while
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