Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK0404HS 
0.3 J 
0.3  1.0 m/s 
45 cycles/min 
2.5 N 
5  70 °C 
4 mm 
28.6mm 
24.6mm 
FK0404LS 
0.1 J 
0.3  1.0 m/s 
45 cycles/min 
2.5 N 
5  70 °C 
4 mm 
28.6mm 
24.6mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK0404HC 
0.3 J 
0.3  1.0 m/s 
45 cycles/min 
2.5 N 
5  70 °C 
4 mm 
32.6mm 
24.6mm 
FK0404LC 
0.1 J 
0.3  1.0 m/s 
45 cycles/min 
2.5 N 
5  70 °C 
4 mm 
32.6mm 
24.6mm 
Cap Length: 4mm Cap Diameter: 3mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK0604HS 
0.5 J 
0.3  1.0 m/s 
45 cycles/min 
3 N 
5  70 °C 
4 mm 
29mm 
25mm 
FK0604LS 
0.1 J 
0.3  1.0 m/s 
45 cycles/min 
3 N 
5  70 °C 
4 mm 
29mm 
25mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK0604HC 
0.5 J 
0.3  1.0 m/s 
45 cycles/min 
3 N 
5  70 °C 
4 mm 
33mm 
25mm 
FK0604LC 
0.1 J 
0.3  1.0 m/s 
45 cycles/min 
3 N 
5  70 °C 
4 mm 
33mm 
25mm 
Cap Length: 4mm Cap Diameter: 4.6mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK1008HS 
2.94 J 
0.3  1.0 m/s 
60 cycles/min 
4.9 N 
5  70 °C 
8 mm 
48mm 
40mm 
FK1008MS 
2.94 J 
0.3  2.0 m/s 
60 cycles/min 
4.9 N 
5  70 °C 
8 mm 
48mm 
40mm 
FK1008LS 
2.94 J 
0.3  3.0 m/s 
60 cycles/min 
4.9 N 
5  70 °C 
8 mm 
48mm 
40mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK1008HC 
2.94 J 
0.3  1.0 m/s 
60 cycles/min 
4.9 N 
5  70 °C 
8 mm 
55mm 
40mm 
FK1008MC 
2.94 J 
0.3  2.0 m/s 
60 cycles/min 
4.9 N 
5  70 °C 
8 mm 
55mm 
40mm 
FK1008LC 
2.94 J 
0.3  3.0 m/s 
60 cycles/min 
4.9 N 
5  70 °C 
8 mm 
55mm 
40mm 
Cap Length: 7mm Cap Diameter: 6mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK1210HS 
6.86 J 
0.3  3.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
10 mm 
63mm 
53mm 
FK1210MS 
6.86 J 
0.3  2.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
10 mm 
63mm 
53mm 
FK1210LS 
6.86 J 
0.3  1.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
10 mm 
63mm 
53mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK1210HC 
6.86 J 
0.3  3.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
10 mm 
71mm 
53mm 
FK1210MC 
6.86 J 
0.3  2.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
10 mm 
71mm 
53mm 
FK1210LC 
6.86 J 
0.3  1.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
10 mm 
71mm 
53mm 
Cap Length: 8mm Cap Diameter: 8mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK1412HS 
9.8 J 
0.3  1.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
12 mm 
70mm 
58mm 
FK1412MS 
9.8 J 
0.3  2.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
12 mm 
70mm 
58mm 
FK1412LS 
9.8 J 
0.3  3.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
12 mm 
70mm 
58mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK1412HC 
9.8 J 
0.3  1.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
12 mm 
78mm 
58mm 
FK1412MC 
9.8 J 
0.3  2.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
12 mm 
78mm 
58mm 
FK1412LC 
9.8 J 
0.3  3.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
12 mm 
78mm 
58mm 
Cap Length: 8mm Cap Diameter: 10mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK1417HS 
14.7 J 
0.3  1.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
17 mm 
97mm 
80mm 
FK1417MS 
14.7 J 
0.3  2.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
17 mm 
97mm 
80mm 
FK1417LS 
14.7 J 
0.3  3.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
17 mm 
97mm 
80mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK1417HC 
14.7 J 
0.3  1.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
17 mm 
107mm 
80mm 
FK1417MC 
14.7 J 
0.3  2.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
17 mm 
107mm 
80mm 
FK1417LC 
14.7 J 
0.3  3.0 m/s 
60 cycles/min 
8.9 N 
5  70 °C 
17 mm 
107mm 
80mm 
Cap Length: 10mm Cap Diameter: 10mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK1612HS 
14.7 J 
0.3  1.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
12 mm 
75mm 
63mm 
FK1612MS 
14.7 J 
0.3  2.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
12 mm 
75mm 
63mm 
FK1612LS 
14.7 J 
0.3  3.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
12 mm 
75mm 
63mm 

Model 
Max. energy absorption J 
Range of impact rate m/s 
Max. cycle rate cycle/min 
Extension force N (kgf) 
Operating temperature °C 
Stroke mm 
Overall Length mm 
Cylinder Length mm 
FK1612HC 
14.7 J 
0.3  1.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
12 mm 
90mm 
63mm 
FK1612MC 
14.7 J 
0.3  2.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
12 mm 
90mm 
63mm 
FK1612LC 
14.7 J 
0.3  3.0 m/s 
60 cycles/min 
9.8 N 
5  70 °C 
12 mm 
90mm 
63mm 
Cap Length: 15mm Cap Diameter: 13.5mm 