Airtac BSE Clamp Standard Cylinder BSE40X225
The AirTAC Airtac BSE Clamp Standard Cylinder BSE40X225 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 Ø16mm rod and holds up to 900 N in either direction — no drift. Ø40mm bore, 225mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ40 mm
- Stroke225 mm
- Static holding force900 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/4
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE40X225
The AirTAC BSE40X225 is a double-acting, single-rod ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. It delivers a push force of 879 N at 0.7 MPa, while the fail-safe collet lock provides a 900 N bidirectional static holding force with zero live air required. Operating pressure is capped at 0.15-0.7 MPa.
This unit uses a separate G1/8 release port to unlock the collet; the cylinder itself uses a PT1/4 port. The lock engages automatically upon air loss or E-stop to hold the rod in place. It is a static holding device, not a dynamic brake, and requires at least 0.5 s for full release before motion.
Rod Lock — 900 N Static Holding (Ø40mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE40X225 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 BSE40X225 Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE40X225 |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 225 mm |
| Static holding force | 900 N |
| Cylinder port | PT1/4 |
| Lock-release port | G1/8 |
| Rod thread | M12×1.25 |
|---|---|
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 800 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa (max) | 880 N | — |
| Max drive (@0.7 MPa) | 90 kgf | |
Drive force is separate from the 900 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 BSE40X225
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 40 | 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 BSE40X225 Is Used
Packaging Vertical Lift
Holds a 900 N vertical lifting carriage securely in place during an E-stop, preventing product crashes when main air pressure drops.
Tooling Clamp
Maintains 879 N of clamping force on a machining fixture, keeping the workpiece locked even if the plant air supply is suddenly exhausted.
Diverter Gate Hold
Locks a 225 mm stroke diverter gate mid-stroke on a sorting line, ensuring the barrier stays rigidly positioned against product flow.
Is the Airtac BSE Clamp Standard Cylinder BSE40X225 the Right Cylinder?
Verify your load does not exceed the 900 N static holding force. If you need less holding capacity, the BSE32X225 offers a 600 N hold and 402 N push at 0.5 MPa. For heavier loads, the BSE50X225 provides a 1400 N hold and 982 N push at 0.5 MPa. Always engage the lock only after the rod fully stops, and release it only when piston pressures are balanced.
This 225 mm stroke model has no -S magnet, so it will not support CMSE or DMSE position sensors. It uses an extruded aluminum ISO 15552 profile barrel without external tie rods. SE mounting accessories fit this body perfectly, except for the FTC tandem model.
Quick checklist
- ✓ Load to hold ≤ 900 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 BSE40X225 FAQ
The drive force is 628 N push and 528 N pull at 0.5 MPa, or 879 N push at 0.7 MPa (90 kgf max drive). The integrated spring-applied rod lock provides a separate 900 N bidirectional static holding force when engaged.
The lock is fail-safe. If air is lost or exhausted, a spring pushes a clamping collet against the rod, holding it in both directions up to 900 N. You must supply 0.15-0.7 MPa to the G1/8 release port and wait at least 0.5 s to free the rod.
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