Airtac BSE Clamp Standard Cylinder BSE125X700S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE125X700S 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, 700mm stroke, PT1/2 cylinder ports, G1/8 lock-release port.
- BoreØ125 mm
- Stroke700 mm
- Static holding force8600 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/2
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE125X700S
The AirTAC BSE125X700S is a double-acting, single-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. It delivers a massive 8590 N drive force at 0.7 MPa while providing a bidirectional static holding force of 8600 N. If air pressure drops or an emergency stop is triggered, the collet clamp engages automatically to secure the 700 mm stroke in place.
This fail-safe lock requires no live air to maintain its grip. Operating pressure is capped at 0.7 MPa, and the lock is released via a separate G1/8 port. The integrated adjustable air cushions at both ends absorb end-of-stroke impact, but the collet lock is the sole mechanism responsible for holding the load. The -S option includes a magnet for CMSE reed and DMSE electronic sensors.
Rod Lock — 8600 N Static Holding (Ø125mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE125X700S 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 BSE125X700S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE125X700S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø125 mm |
| Stroke | 700 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 BSE125X700S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 125 | Bore size in mm. |
| ×700 | 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 BSE125X700S Is Used
Heavy Press Tooling Clamp
Secures heavy press dies and tooling weighing up to 8600 N. The spring-applied collet prevents the tool from dropping if factory air is exhausted during a sudden E-stop event.
Large Vertical Lift Station
Holds a 700 mm vertical lift carriage firmly in place on heavy machinery. The fail-safe lock engages instantly on air loss, preventing catastrophic gravity-driven drops of the 876 kgf load.
Automated Assembly Hoist
Locks a heavy automated hoist arm mid-cycle during dwell periods. The 125 mm bore provides 8590 N of drive force to move the load, while the collet lock holds it securely without consuming live air.
Is the Airtac BSE Clamp Standard Cylinder BSE125X700S the Right Cylinder?
Verify your suspended load requires 8600 N or less of static holding force to prevent drift. If your application needs less drive force, stepping down to the 100 mm bore yields a 3927 N push at 0.5 MPa and a 5500 N hold. If you need more drive, note that 125 mm is the largest standard BSE bore available, offering 6136 N push at 0.5 MPa and 876 kgf max drive at 0.7 MPa.
Engage the lock only after the rod has completely stopped, and release it only when pressures on both sides of the piston are balanced, allowing at least 0.5 seconds for full release before moving. At 700 mm stroke, use guide rails to prevent side-load damage to the seals. This unit uses a PT1/2 cylinder port, an M27x2 rod thread, and accepts SE-compatible mounting accessories except 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 BSE125X700S FAQ
The drive force is 6136 N push and 5734 N pull at 0.5 MPa, and 8590 N push at 0.7 MPa (max 876 kgf drive). The static holding force of the rod lock is 8600 N. Drive force moves the load, while the holding force keeps it stationary without live air.
The lock is spring-applied and air-released. If air is lost, exhausted, or an E-stop trips, the clamping collet engages automatically to hold the rod bidirectionally at whatever position it stopped. To release it safely, balance pressures on both sides of the piston and apply air to the G1/8 release port for at least 0.5 seconds before moving.
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