Airtac BSE Clamp Standard Cylinder BSE125X160S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE125X160S 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, 160mm stroke, PT1/2 cylinder ports, G1/8 lock-release port.
- BoreØ125 mm
- Stroke160 mm
- Static holding force8600 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/2
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE125X160S
The AirTAC BSE125X160S is a double-acting ISO 15552 profile cylinder featuring a 125 mm bore and 160 mm stroke. It integrates a spring-applied, air-released rod lock that provides a massive 8600 N bidirectional static holding force. Operating pressure is capped at 0.7 MPa, and it includes a -S magnet for position sensing.
This fail-safe collet mechanism clamps the 32 mm rod automatically if air pressure is lost or an E-stop is triggered, holding the load securely in both directions without live air. A separate G1/8 release port unlocks the collet, and standard SE mounting accessories fit this body perfectly except for FTC.
Rod Lock — 8600 N Static Holding (Ø125mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE125X160S 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 BSE125X160S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE125X160S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø125 mm |
| Stroke | 160 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 BSE125X160S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 125 | Bore size in mm. |
| ×160 | 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 BSE125X160S Is Used
Heavy Vertical Press
Holds an 8600 N vertical press ram in place during an air loss event, preventing catastrophic drops on heavy stamping machinery.
Large Injection Mold Tooling
Secures heavy mold halves safely mid-stroke; the 8590 N drive force provides powerful clamping while the lock prevents separation if air fails.
Industrial Foundry Gate
Locks a massive foundry access gate firmly open or closed during E-stop activations, relying on the fail-safe collet rather than live air pressure.
Is the Airtac BSE Clamp Standard Cylinder BSE125X160S the Right Cylinder?
Verify your suspended load stays below the 8600 N holding capacity. If your application requires less force, the neighboring 100 mm bore provides 3927 N push at 0.5 MPa and 5500 N hold. For heavier demands, 125 mm is the maximum standard size offering 8590 N push at 0.7 MPa and 876 kgf max drive.
Engage the lock only after the rod completely stops, and release it only when piston pressures are balanced, allowing at least 0.5 seconds before moving. This 160 mm stroke unit is under 300 mm so side-load guide concerns are minimal. Replacement specs must match the 125 mm bore, 160 mm stroke, PT1/2 port, and -S magnet option.
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 BSE125X160S FAQ
The integrated spring-applied collet instantly engages, providing 8600 N of bidirectional static holding force to keep the load exactly where it stopped. It is a fail-safe hold, not a dynamic brake.
At 0.5 MPa, the push force is 6136 N and pull is 5734 N. At the 0.7 MPa maximum, push is 8590 N (876 kgf max drive). This drive force is entirely separate from the 8600 N static holding force of the lock.
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