Airtac BSE Clamp Standard Cylinder BSE125X150
The AirTAC Airtac BSE Clamp Standard Cylinder BSE125X150 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, 150mm stroke, PT1/2 cylinder ports, G1/8 lock-release port.
- BoreØ125 mm
- Stroke150 mm
- Static holding force8600 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/2
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE125X150
The AirTAC BSE125X150 is a double-acting ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. It delivers a massive 8600 N bidirectional static holding force with zero live air required, ensuring suspended loads stay exactly where they stopped during an E-stop or pressure loss. Operating pressure is capped at 0.15-0.7 MPa, and the drive force is entirely separate from the lock's holding capacity.
This 125 mm bore unit uses a PT1/2 cylinder port and a dedicated G1/8 release port to unlock the internal collet. Because this SKU lacks the -S magnet option, it does not support CMSE or DMSE position sensors. The ISO 15552 extruded aluminum body accepts standard SE mounting accessories, except for the FTC variant. Always allow at least 0.5 seconds for full pressure balance before moving the rod after a release.
Rod Lock — 8600 N Static Holding (Ø125mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE125X150 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 BSE125X150 Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE125X150 |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø125 mm |
| Stroke | 150 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 BSE125X150
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 125 | Bore size in mm. |
| ×150 | 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 BSE125X150 Is Used
Heavy Press Tooling Clamp
Secures 8000 N stamping dies mid-stroke. If shop air exhausts suddenly, the collet locks the 32 mm rod instantly, preventing the heavy press ram from crashing down on the workpiece.
Palletizer Lift Station
Holds a fully loaded pallet lift arm securely at its raised stop. The 8600 N fail-safe hold guarantees the vertical load cannot drift downward during a safety fence breach or E-stop activation.
Automated Welding Gate
Maintains a heavy manipulator gate firmly open while robots pass. The spring-applied collet locks the position, ensuring the 8590 N drive force does not unintentionally drift if the control air is isolated.
Is the Airtac BSE Clamp Standard Cylinder BSE125X150 the Right Cylinder?
Verify your load's static weight does not exceed the 8600 N holding force. If your load is lighter, stepping down to the 100 mm bore drops the holding force to 5500 N and the 0.5 MPa push drive to 3927 N, which might better suit mid-range dynamics. As the largest standard bore, there is no larger neighbor; if 8600 N is insufficient, you must redesign the mechanical leverage or use dual cylinders. The 125 mm bore provides a 6136 N push at 0.5 MPa and 8590 N at 0.7 MPa. Remember to engage the lock only after the rod completely stops, and release it only when piston pressures are balanced. For this 150 mm stroke, ensure external guides support the load to prevent excessive side-load on the rod.
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 BSE125X150 FAQ
The drive force at 0.5 MPa is 6136 N push and 5734 N pull; at 0.7 MPa, the push is 8590 N (max 876 kgf). The integrated rod lock provides a separate 8600 N static holding force that secures the load with no live air.
The lock is spring-applied and air-released. If air pressure drops below 0.15 MPa or is lost, a collet instantly clamps the rod, providing an 8600 N bidirectional hold. It is not a dynamic brake; you must engage it only after the rod stops, and allow at least 0.5 s for full release before moving.
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