Airtac BSE Clamp Standard Cylinder BSE125X200S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE125X200S is a genuine double-acting ISO 15552 cylinder with an integrated spring-applied, air-released ROD LOCK. If air is cut or an E-stop is hit, the collet clamps the Ø32mm rod and holds up to 8600 N in either direction — no drift. Ø125mm bore, 200mm stroke, PT1/2 cylinder ports, G1/8 lock-release port.
- BoreØ125 mm
- Stroke200 mm
- Static holding force8600 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/2
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE125X200S
The AirTAC BSE125X200S is a double-acting ISO 15552 profile cylinder equipped with an integrated spring-applied, air-released rod lock. It provides a massive 8600 N bidirectional static holding force, ensuring heavy suspended loads remain safely fixed the moment air pressure is lost or exhausted. Operating pressure is capped at 0.7 MPa, and the cylinder runs at speeds of 30-500 mm/s.
This fail-safe collet mechanism engages only after the piston rod completely stops, functioning strictly as a static hold rather than a dynamic brake. Unlocking requires 0.15-0.7 MPa supplied to the dedicated G1/8 release port, with a mandatory 0.5-second delay for full release before motion. The -S magnet option enables position sensing via CMSE reed or DMSE electronic sensors.
Rod Lock — 8600 N Static Holding (Ø125mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE125X200S holds its position in both directions when air is lost, exhausted or an E-stop trips. Apply 0.15–0.7 MPa to the G1/8 release port to unlock. Engage the lock only after the rod has stopped (it is not a dynamic brake), and release only when the pressures on both sides of the piston are balanced. Allow at least 0.5 s for full release before moving.
Airtac BSE Clamp Standard Cylinder BSE125X200S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE125X200S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 mm |
| Static holding force | 8600 N |
| Cylinder port | PT1/2 |
| Lock-release port | G1/8 |
| Rod thread | M27×2 |
|---|---|
| Operating pressure | 0.15 – 0.7 MPa |
| Unlocking pressure | 0.15 – 0.7 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Adjustable, 40 mm |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC BSE datasheet. The lock uses the SE standard body; SE mounting accessories fit BSE except FTC. Port options: PT (standard) / G (BSPP); lock-release port is G1/8.
Theoretical Output Force (Ø125mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 6136 N | 5734 N |
| 0.7 MPa (max) | 8590 N | — |
| Max drive (@0.7 MPa) | 876 kgf | |
Drive force is separate from the 8600 N static holding force of the lock. BSE operates up to 0.7 MPa. Size with a safety margin.
Model Code: Airtac BSE Clamp Standard Cylinder BSE125X200S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 125 | Bore size in mm. |
| ×200 | Stroke length in mm. |
| -S | Optional built-in magnet for CMSE / DMSE sensor sensing. |
Thread: PT (blank) / G. Mounting (BSE): Basic, LB, FA, FB, CA, CB, CR, TC (FTC is not available on BSE). Related: SE (no lock), BSED (double-rod rod lock). Sensors CMSE/DMSE fit magnetic BSE.
Where the Airtac BSE Clamp Standard Cylinder BSE125X200S Is Used
Heavy Vertical Lifts
Secures 8600 N vertical press platens or heavy lifting stages, holding them firmly in place during an E-stop or sudden air loss to prevent catastrophic falls.
Large Press Tooling
Clamps heavy stamping or forming tools on 125 mm bore machinery, using the 8590 N drive force for extension and the fail-safe collet to lock position during air drops.
Overhead Conveyor Stops
Acts as a rigid stop gate for heavy industrial conveyors, locking instantly via the G1/8 release port exhaust to hold assembled chassis or pallets without live air.
Is the Airtac BSE Clamp Standard Cylinder BSE125X200S the Right Cylinder?
Verify your load does not exceed the 8600 N static holding force. If you need less drive force, stepping down to the 100 mm bore yields 3927 N push at 0.5 MPa and a 5500 N hold. If you require maximum thrust, this 125 mm bore is the largest available, providing 6136 N push at 0.5 MPa and an 876 kgf max drive at 0.7 MPa. Always balance pressures on both sides before unlocking, allowing at least 0.5 s for release. For drop-in replacements, match the 200 mm stroke, PT1/2 port, and mounting choice. SE mounting accessories fit this body perfectly, except for the FTC variant.
Quick checklist
- ✓ Load to hold ≤ 8600 N?
- ✓ Fail-safe hold on air loss / E-stop needed
- ✓ Lock engaged only when stopped
- ✓ G1/8 release-air line available
- ✓ Magnet (-S) for CMSE/DMSE sensors?
Installation & Safety Notes
- check Engage the lock only after the rod has stopped — not as a dynamic brake.
- check Release only when both piston sides are pressure-balanced.
- check Allow ≥0.5 s for full release before commanding motion.
- check Feed the G1/8 release port with 0.15–0.7 MPa clean air.
- check Add safety-rated controls for man-rated / overhead loads.
- check Use SE mounting accessories (FTC excepted).
Airtac BSE Clamp Standard Cylinder BSE125X200S FAQ
It uses a spring-applied, air-released collet that clamps the 32 mm rod, delivering an 8600 N bidirectional static hold with zero live air. It is strictly a static lock, not a dynamic brake.
The drive force is 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, with a maximum 876 kgf drive. The static holding force is 8600 N. Speed range is 30-500 mm/s.
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