Airtac BSE Clamp Standard Cylinder BSE50X450S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE50X450S 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, 450mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ50 mm
- Stroke450 mm
- Static holding force1400 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/4
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE50X450S
The AirTAC BSE50X450S is a double-acting ISO 15552 profile cylinder featuring a built-in spring-applied, air-released rod lock. It delivers a bidirectional static holding force of 1400 N. If air pressure drops or an E-stop trips, the collet clamps the rod to hold the load safely in place.
The cylinder operates at 0.15-0.7 MPa with a separate G1/8 release port to unlock the mechanism. This 50 mm bore, 450 mm stroke variant includes a magnet for position sensing and uses adjustable air cushions at both ends to absorb kinetic energy.
Rod Lock — 1400 N Static Holding (Ø50mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE50X450S 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 BSE50X450S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE50X450S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 450 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 BSE50X450S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 50 | Bore size in mm. |
| ×450 | 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 BSE50X450S Is Used
Vertical Pneumatic Lift
Secures a 1400 N vertical elevator platform instantly if air pressure is lost, preventing uncontrolled drops while the drive provides 982 N push at 0.5 MPa.
Overhead Tool Clamp
Holds a machining fixture rigidly in place during an E-stop, relying on the fail-safe collet rather than live air to maintain the clamp.
Pallet Stop Gate
Maintains a raised stop position on a packaging conveyor line even when the main air supply is exhausted, ensuring product does not roll past.
Is the Airtac BSE Clamp Standard Cylinder BSE50X450S the Right Cylinder?
Verify your suspended load requires less than the 1400 N holding force. If you need less drive, the 40 mm bore offers 628 N push at 0.5 MPa and 900 N hold; for heavier loads, the 63 mm bore provides 1559 N push at 0.5 MPa and 2200 N hold. Always engage the lock only after the rod stops completely.
When replacing, match the 50 mm bore, 450 mm stroke, PT1/4 port, and -S magnet. Since the stroke is 450 mm, use external guide rails to prevent side-load wear on the seals. 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 BSE50X450S FAQ
The drive force is 982 N push and 825 N pull at 0.5 MPa, or 1374 N push at 0.7 MPa (140 kgf max drive). The separate static holding force of the rod lock is 1400 N.
The lock is spring-applied, so it clamps automatically on air loss for fail-safe holding. To release, supply air to the G1/8 release port, ensure piston pressures are balanced, and wait at least 0.5 seconds before moving.
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