Mould Line
Gas Springs
and Spring Plungers
for Mould Making
2
.
21458
.
2007
.
1  Art Nr. 2.5510.00.1107.01000
11/2007
A
P
P
R
O
V
E
D
9
7
/
2
3
/
E
C
- Temperatures up to 120°C
- specially developed for mould making
subject to alterations

2

Safety piston rod
Excess pressure protection
Overstroke protection
 By means of a pressure monitoring system, an impending
failure can be recognised at an early point (prevention)
 No tool breakage, should the 2
nd
separation level lock
(the plate comes to a standstill; after the removal of the
jam, production can be resumed)

Worldwide usage a million times over of FIBRO Gas Springs
 Cost savings: approximately 60-70%
(e.g. compared to a latch-locking unit)
1
at 120°C / 500.000 strokes
2
depending on the spring type
Gas Springs 3487.12.
2
Spring Plungers 3479.
subject to alterations
2
.
21460
.
2007
.

min
40 43 46 49 55 62 68 80 93 105 110 130 155
3487.12.00750. l

±0,25
52 58 64 70 82 96 108 132 158 182 192 232 282 25
45,2
16,5 4 4 2 M8 20 1
l

min
42 45 48 51 57 64 70 82 95 107 112 132 157
3487.12.01000. l

±0,25
64 70 76 88 102 114 138 164 188 198 238 288 28
57,2
17,5 8 7 3 M8 20 2
l

min
51 54 57 63 70 76 88 101 113 118 138 163
*on request
Dimensions for Gas Springs 3487.12.
Order no
Stroke

max
10 20 30 40 50 60 70 80
100* 125*

Max.charge
pressure at
20°C (bar)
Initial-
force
(daN) at3479.030.3479.032.
Spring model

3487.12.00300.3487.12.00500.3487.12.00750.3487.12.01000.
0-80 20 150 80°C 51 204 363 568 887 1113
20°C 42 170 301 471 736 924
80-100 15 125 100°C 45 180 320 500 781 980
20°C 35,5 141,5 251 393 614 770
100-120 10 115 120° C 43,5 175 310 485 757 950
20°C 32,5 130 231 361 565 708

Mounting with external thread
Hexagon nut
order supplementary:
2480.004.00040.1 (M16x1,5)
1

2480.004.00170 (M24x1,5)
2
Hexagon nut
1
Hexagon nut
2