Airtac BSE Clamp Standard Cylinder BSE125X80S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE125X80S 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, 80mm stroke, PT1/2 cylinder ports, G1/8 lock-release port.
- BoreØ125 mm
- Stroke80 mm
- Static holding force8600 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/2
- Lock-release portG1/8
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac BSE Clamp Standard Cylinder BSE125X80S
The AirTAC BSE125X80S is a double-acting ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. A collet clamps the Ø32 mm rod to deliver an 8600 N bidirectional static holding force. If air is lost or an E-stop trips, the lock engages fail-safe to prevent drift.
Operating pressure is capped at 0.15-0.7 MPa, and the lock requires a separate G1/8 release port. The -S suffix adds a magnet for CMSE (reed) and DMSE (electronic) sensors. Remember the lock is a static hold, not a dynamic brake; engage it only after the rod stops and allow at least 0.5 s for full release.
Rod Lock — 8600 N Static Holding (Ø125mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE125X80S 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 BSE125X80S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE125X80S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø125 mm |
| Stroke | 80 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 BSE125X80S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 125 | Bore size in mm. |
| ×80 | 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 BSE125X80S Is Used
Heavy Vertical Lifts
Holds suspended machining fixtures weighing up to 8600 N in place instantly if compressed air drops, preventing sudden crashes on large vertical axes.
Press Tool Clamping
Secures heavy stamping dies during an E-stop. The fail-safe collet locks the 32 mm rod bidirectionally, ensuring the press stays put without live air.
Large Machine Stops
Locks heavy automated machine beds in position. The 8590 N drive force moves the load, while the spring-applied lock rigidly holds it during dwell cycles.
Is the Airtac BSE Clamp Standard Cylinder BSE125X80S the Right Cylinder?
Verify your load requires less than the 8600 N holding force. If you need less clamping, the adjacent 100 mm bore offers a 3927 N push at 0.5 MPa and a 5500 N hold. For heavier drive needs, the 125 mm is the largest standard BSE, delivering an 8590 N push at 0.7 MPa.
Always engage the lock only when the rod is stopped and release it only when piston pressures are balanced. As a direct replacement, match the 125 mm bore, 80 mm stroke, PT1/2 cylinder port, basic mounting, and -S magnet. SE mounting accessories fit this ISO 15552 body entirely except for FTC.
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 BSE125X80S 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 with no live air.
The lock is spring-applied and air-released, so a loss of control air instantly clamps the collet to the rod for a fail-safe hold. It is a static lock, not a dynamic brake; you must engage it only after the rod stops and allow at least 0.5 s for release.
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