Airtac BSE Clamp Standard Cylinder BSE125X225S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE125X225S 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, 225mm stroke, PT1/2 cylinder ports, G1/8 lock-release port.
- BoreØ125 mm
- Stroke225 mm
- Static holding force8600 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/2
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE125X225S
The AirTAC BSE125X225S is a double-acting ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. It provides a massive 8600 N bidirectional static holding force with no live air required. Operating pressure is capped at 0.7 MPa, and the separate G1/8 release port unlocks the collet only when balanced.
Because it uses the SE body, SE mounting accessories fit this model perfectly except for FTC. The integrated -S magnet enables precise position tracking using CMSE reed or DMSE electronic sensors. The lock is a holding device, not a dynamic brake; it engages only after the rod fully stops.
Rod Lock — 8600 N Static Holding (Ø125mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE125X225S 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 BSE125X225S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE125X225S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø125 mm |
| Stroke | 225 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 BSE125X225S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 125 | Bore size in mm. |
| ×225 | 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 BSE125X225S Is Used
Heavy Vertical Lifts
Secures 8600 N against gravity on large vertical molding presses if compressed air drops, preventing dangerous falls.
Clamp Drift Prevention
Holds heavy machining tooling rigidly in place during E-stops, ensuring the 876 kgf drive load does not shift unexpectedly.
Palletizer Gates
Locks large automated pallet gates instantly in both directions when safety interlocks trip, staying put with zero live air.
Is the Airtac BSE Clamp Standard Cylinder BSE125X225S the Right Cylinder?
Verify your suspended load stays under the 8600 N static holding force. If your load is lighter, step down to the 100 mm bore, which yields 3927 N push at 0.5 MPa and 5500 N hold. If you need more drive power, note this 125 mm bore is the largest available, delivering 6136 N push at 0.5 MPa and 876 kgf max drive at 0.7 MPa.
Engage the lock only after the rod stops, and release it only when piston pressures are balanced, allowing at least 0.5 s before moving. For exact replacement, match the 225 mm stroke, PT1/2 port, M27x2 rod thread, and your required mounting code.
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 BSE125X225S FAQ
The spring-applied collet clamps the rod instantly, providing 8600 N of bidirectional static holding force with no live air. It is a fail-safe hold, not a dynamic brake; the rod must be stopped before engagement.
Drive force is 6136 N push and 5734 N pull at 0.5 MPa, 8590 N push at 0.7 MPa, equating to 876 kgf max drive. The separate static holding force of the lock is 8600 N.
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