Airtac BSE Clamp Standard Cylinder BSE80X125S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE80X125S 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 Ø25mm rod and holds up to 3600 N in either direction — no drift. Ø80mm bore, 125mm stroke, PT3/8 cylinder ports, G1/8 lock-release port.
- BoreØ80 mm
- Stroke125 mm
- Static holding force3600 N
- Lock typeSpring-lock / air-release
- Cylinder portPT3/8
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE80X125S
The AirTAC BSE80X125S is an ISO 15552 profile double-acting single-rod cylinder fitted with a spring-applied, air-released collet rod lock. It provides a 3600 N bidirectional fail-safe hold with zero live air, instantly clamping the 25mm rod if pressure drops or an E-stop is hit. The operating pressure ceiling is strictly 0.15-0.7 MPa.
This unit features a 125mm stroke, PT3/8 cylinder ports, and a dedicated G1/8 release port. The -S magnet option allows position sensing with CMSE reed or DMSE electronic sensors. SE-compatible mounting accessories fit this body directly, except for FTC variants.
Rod Lock — 3600 N Static Holding (Ø80mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE80X125S 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 BSE80X125S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE80X125S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 125 mm |
| Static holding force | 3600 N |
| Cylinder port | PT3/8 |
| Lock-release port | G1/8 |
| Rod thread | M20×1.5 |
|---|---|
| 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, 36 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa (max) | 3519 N | — |
| Max drive (@0.7 MPa) | 359 kgf | |
Drive force is separate from the 3600 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 BSE80X125S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 80 | Bore size in mm. |
| ×125 | 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 BSE80X125S Is Used
Vertical Machining Center Lift
Holds a heavy machine tooling head firmly in place during an air loss event, utilizing the 3600 N holding force to prevent a catastrophic vertical drop.
Pallet Accumulation Stop
Acts as a hard stop on a packaging conveyor line, locking the 25mm rod instantly during an E-stop to secure heavy pallets without drifting.
Heavy Press Tool Clamp
Secures an automotive stamping die in the clamped position, ensuring the 3518 N drive force is maintained safely even if the main air supply is exhausted.
Is the Airtac BSE Clamp Standard Cylinder BSE80X125S the Right Cylinder?
Verify your suspended load stays below the 3600 N static holding limit. If your load is lighter, the 63mm bore offers a 1559 N push at 0.5 MPa and a 2200 N hold. If you need more stopping power, the 100mm bore provides a 3927 N push at 0.5 MPa and a 5500 N hold.
Engage the lock only after the rod fully stops, and release it only when piston pressures are balanced, allowing at least 0.5 seconds before moving. For exact replacement, match the 80mm bore, 125mm stroke, PT thread, and -S magnet. Strokes over 300mm require external guides to prevent side-load wear.
Quick checklist
- ✓ Load to hold ≤ 3600 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 BSE80X125S FAQ
The spring-applied collet clamps the rod instantly, providing a 3600 N static hold in both directions without live air. The drive forces are 2513 N push and 2268 N pull at 0.5 MPa, 3518 N push at 0.7 MPa, and a maximum drive of 359 kgf.
Apply 0.15-0.7 MPa to the separate G1/8 release port only after balancing the pressures on both sides of the piston. Wait at least 0.5 seconds for the collet to fully retract before commanding cylinder movement to avoid damaging the mechanism.
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