Airtac BSE Clamp Standard Cylinder BSE50X25
The AirTAC Airtac BSE Clamp Standard Cylinder BSE50X25 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 Ø20mm rod and holds up to 1400 N in either direction — no drift. Ø50mm bore, 25mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ50 mm
- Stroke25 mm
- Static holding force1400 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/4
- 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 BSE50X25
The AirTAC BSE50X25 is a double-acting ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. A collet clamps the Ø20 mm rod to deliver a 1400 N bidirectional static holding force with zero live air, keeping suspended loads exactly where they stopped during an E-stop or pressure drop. Operating pressure is capped at 0.7 MPa.
This 50 mm bore, 25 mm stroke unit uses a PT1/4 cylinder port and a separate G1/8 release port to unlock the mechanism. The lock is a holding device, not a dynamic brake; it must engage only after the rod stops and release once piston pressures balance. This SKU lacks a magnet, so position sensing is not available.
Rod Lock — 1400 N Static Holding (Ø50mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE50X25 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 BSE50X25 Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE50X25 |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 mm |
| Static holding force | 1400 N |
| Cylinder port | PT1/4 |
| Lock-release port | G1/8 |
| Rod thread | M16×1.5 |
|---|---|
| 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, 30 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa (max) | 1374 N | — |
| Max drive (@0.7 MPa) | 140 kgf | |
Drive force is separate from the 1400 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 BSE50X25
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 50 | Bore size in mm. |
| ×25 | 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 BSE50X25 Is Used
Pallet Elevator Hold
Secures a vertical pallet lift carrying 100 kg. The 1400 N fail-safe collet locks instantly on air loss, preventing a crash while the 982 N drive handles the lift.
Pneumatic Vise Clamp
Maintains 825 N of clamping pull on a steel block. If shop air drops, the collet holds the workpiece with 1400 N, preventing the part from ejecting.
Transfer Gate Stop
Acts as a hard stop on a packaging conveyor. The 1374 N push halts cartons, and the spring-applied lock keeps the gate rigidly extended during E-stops.
Is the Airtac BSE Clamp Standard Cylinder BSE50X25 the Right Cylinder?
Verify your load requires less than the 1400 N holding force and 1374 N push at 0.7 MPa. If you need less drive, step down to the 40 mm bore (628 N push at 0.5 MPa, 900 N hold); for more power, step up to the 63 mm bore (1559 N push at 0.5 MPa, 2200 N hold). Always balance pressures before unlocking, allowing at least 0.5 s for full release. When replacing, match the 50 mm bore, 25 mm stroke, PT1/4 port, and basic mounting. SE mounting accessories fit this body except FTC.
Quick checklist
- ✓ Load to hold ≤ 1400 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 BSE50X25 FAQ
The drive force is 982 N push and 825 N pull at 0.5 MPa, reaching 1374 N push at 0.7 MPa (140 kgf max). The integrated rod lock provides a separate 1400 N static holding force with no live air.
The spring-applied collet clamps the rod immediately, delivering 1400 N of bidirectional hold. To resume motion, apply air to the G1/8 release port, balance piston pressures, and wait 0.5 s before moving.
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