Airtac BSE Clamp Standard Cylinder BSE32X250S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE32X250S 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 Ø12mm rod and holds up to 600 N in either direction — no drift. Ø32mm bore, 250mm stroke, PT1/8 cylinder ports, G1/8 lock-release port.
- BoreØ32 mm
- Stroke250 mm
- Static holding force600 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/8
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE32X250S
The AirTAC BSE32X250S is a double-acting ISO 15552 profile cylinder featuring a 32mm bore, 250mm stroke, and an integrated spring-applied, air-released rod lock. A collet mechanism provides a bidirectional static holding force of 600 N. Because the lock is spring-applied, it engages automatically if air pressure drops, ensuring fail-safe load holding without live air. The operating pressure ceiling is capped at 0.7 MPa.
This model includes a -S magnet for position sensing with CMSE reed or DMSE electronic switches. It uses a separate G1/8 release port to unlock the collet, while the main cylinder ports are PT1/8. The lock is a holding device, not a dynamic brake; it must only engage after the rod stops and release when piston pressures are balanced, requiring at least 0.5 seconds for full release before motion.
Rod Lock — 600 N Static Holding (Ø32mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE32X250S 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 BSE32X250S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE32X250S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø32 mm |
| Stroke | 250 mm |
| Static holding force | 600 N |
| Cylinder port | PT1/8 |
| Lock-release port | G1/8 |
| Rod thread | M10×1.25 |
|---|---|
| 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, 27 mm |
| Max stroke | Up to 700 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 (Ø32mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa (max) | 563 N | — |
| Max drive (@0.7 MPa) | 57 kgf | |
Drive force is separate from the 600 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 BSE32X250S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 32 | Bore size in mm. |
| ×250 | 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 BSE32X250S Is Used
Small Vertical Lifts
Holds a 402 N push load securely on a Z-axis gantry. The 600 N collet engages instantly on air loss, preventing a small parts elevator from crashing down during an E-stop.
Tooling Clamp Hold
Secures a pneumatic clamping fixture in place. If shop air is exhausted, the spring-applied collet maintains the 600 N grip so the workpiece stays fixed and cannot drift.
Pallet Stop Gate
Acts as a physical stop gate on a 30-800 mm/s conveyor line. The fail-safe lock keeps the gate rigidly extended against a 345 N pull load, even if the air supply is disconnected.
Is the Airtac BSE Clamp Standard Cylinder BSE32X250S the Right Cylinder?
Verify your load requires a holding force of 600 N or less. If you need less drive force, the next size down does not exist for BSE, making 32mm the minimum. If your load exceeds 600 N or you need more push, step up to the 40mm bore, which provides 628 N push at 0.5 MPa and 900 N of holding force. Always engage the lock only after the piston stops, and release it only after balancing pressures on both sides. For replacing an existing unit, match the 32mm bore, 250mm stroke, PT1/8 port, and -S magnet. Since the stroke is 250mm, ensure adequate guide support to prevent side-load wear on the barrel and collet.
Quick checklist
- ✓ Load to hold ≤ 600 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 BSE32X250S FAQ
The drive force at 0.5 MPa is 402 N push and 345 N pull. At the 0.7 MPa ceiling, push is 563 N, yielding a max drive of 57 kgf. The integrated rod lock provides a separate 600 N static holding force.
The lock is spring-applied and fail-safe. If air is lost or exhausted, the collet immediately clamps the 12mm rod, providing 600 N of bidirectional holding force. It is not a dynamic brake, so you must engage it only after the rod stops.
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