Unit：mm
9.8 Newton(N)=1 Kg=2.2 LBS
| Model No. | Stroke (A) | Extended Length (B) | Force Range (N) |
| BS-205-C9S20-XXXNPK | 25 | 205 | 100~650N |
| BS-245-C9S20-XXXNPK | 45 | 245 | 100~650N |
| BS-285-C9S20-XXXNPK | 65 | 285 | 100~650N |
| BS-325-C9S20-XXXNPK | 85 | 325 | 100~650N |
| BS-365-C9S20-XXXNPK | 105 | 365 | 100~650N |
| BS-405-C9S20-XXXNPK | 125 | 405 | 100~650N |
| BS-445-C9S20-XXXNPK | 145 | 445 | 100~650N |
| BS-485-C9S20-XXXNPK | 165 | 485 | 100~650N |
| BS-525-C9S20-XXXNPK | 185 | 525 | 100~650N |
| BS-585-C9S20-XXXNPK | 215 | 585 | 100~650N |
STABILUS Stainless SUS316 Free Type-Safety Gas spring works on the same principle as free type but with additional support tube and outer lock to secure mechanical BLOC-O-LIFT of the application in the open position.