Airtac BSE Clamp Standard Cylinder BSE50X50S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE50X50S 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, 50mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ50 mm
- Stroke50 mm
- Static holding force1400 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/4
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE50X50S
The AirTAC BSE50X50S is a double-acting, single-rod ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. It delivers a drive force of 1374 N at 0.7 MPa, while the fail-safe collet lock provides a bidirectional static holding force of 1400 N with no live air required.
The lock engages automatically if air is exhausted or an E-stop trips, holding the rod securely in both directions. A separate G1/8 release port unlocks the collet when balanced air is applied. The -S magnet option supports CMSE reed and DMSE electronic sensors for position feedback.
Rod Lock — 1400 N Static Holding (Ø50mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE50X50S 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 BSE50X50S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE50X50S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 50 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 BSE50X50S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 50 | Bore size in mm. |
| ×50 | 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 BSE50X50S Is Used
Packaging Vertical Lift
Holds a 1400 N carton elevator carriage mid-stroke during an E-stop, preventing boxes from falling when main air pressure drops.
Machine Tool Clamping
Secures a workpiece fixture with 1374 N drive force and locks the collet to prevent part drift if the pneumatic supply suddenly exhausts.
Pallet Conveyor Stop
Acts as a pneumatic stop gate on a packaging line, using the fail-safe lock to ensure the barrier stays rigid if the air compressor fails.
Is the Airtac BSE Clamp Standard Cylinder BSE50X50S the Right Cylinder?
Verify your suspended load does not exceed the 1400 N static holding force. If you need less holding capacity, the 40 mm bore offers 628 N push at 0.5 MPa and 900 N hold; if scaling up, the 63 mm bore provides 1559 N push at 0.5 MPa and 2200 N hold. Operating pressure is capped at 0.7 MPa.
Engage the lock only after the rod completely stops, and release it only when piston pressures are balanced, allowing at least 0.5 s before moving. For replacements, match the 50 mm bore, 50 mm stroke, PT1/4 cylinder port, and mounting style. 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 BSE50X50S FAQ
The drive force is 982 N push and 825 N pull at 0.5 MPa, 1374 N push at 0.7 MPa (max 140 kgf). The separate static holding force of the rod lock is 1400 N.
The spring-applied collet clamps the rod instantly upon air loss, holding it bidirectionally up to 1400 N. To release, apply balanced air to the G1/8 port and wait 0.5 s before moving.
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