Airtac BSE Clamp Standard Cylinder BSE50X300
The AirTAC Airtac BSE Clamp Standard Cylinder BSE50X300 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, 300mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ50 mm
- Stroke300 mm
- Static holding force1400 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/4
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE50X300
The AirTAC BSE50X300 is a double-acting, single-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. It delivers a drive force of 1374 N at 0.7 MPa while providing a bidirectional static holding force of 1400 N with no live air required. Operating pressure is capped at 0.15-0.7 MPa.
This fail-safe collet lock engages automatically if air is lost or an E-stop trips, holding the rod firmly in both directions. Unlocking requires air to the separate G1/8 release port. You must engage the lock only after the rod stops and release it only when piston pressures are balanced, allowing at least 0.5 seconds before moving.
Rod Lock — 1400 N Static Holding (Ø50mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE50X300 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 BSE50X300 Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE50X300 |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 300 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 BSE50X300
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 50 | Bore size in mm. |
| ×300 | 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 BSE50X300 Is Used
Palletizer Vertical Lift
Holds a 1374 N drive load mid-stroke on a packaging line palletizer. The 1400 N fail-safe collet locks instantly on air loss, preventing a sudden crash of the lifted goods.
Injection Mold Tooling
Secures heavy mold halves during a press changeover. The spring-applied lock maintains a rigid 1400 N hold without consuming continuous air, ensuring the tool will not drift.
Pallet Stop Gate
Acts as an indexing stop gate on an assembly conveyor. If E-stop is hit, the rod locks bidirectionally at 1400 N, keeping the gate firmly extended to block advancing workpieces.
Is the Airtac BSE Clamp Standard Cylinder BSE50X300 the Right Cylinder?
Verify your suspended load does not exceed the 1400 N static holding force. If you need less drive force, the adjacent 40mm bore offers 628 N push at 0.5 MPa and 900 N hold. If your load exceeds 1400 N, step up to the 63mm bore, which provides 1559 N push at 0.5 MPa and 2200 N hold. Always engage the lock only when stopped and release with balanced pressures.
For the 300mm stroke, use a linear guide to prevent side-load damage to the seals and barrel. This base SKU lacks a magnet (-S), so position sensing via CMSE or DMSE sensors is not supported. Replacement requires matching the 50mm bore, 300mm stroke, PT1/4 cylinder port, and your specific mounting choice. SE mounting accessories fit perfectly 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 BSE50X300 FAQ
The drive force at 0.5 MPa is 982 N push and 825 N pull. At the 0.7 MPa maximum, push is 1374 N (140 kgf max drive). The separate static holding force of the rod lock is 1400 N.
The lock is spring-applied and fail-safe. If air is lost, the collet clamps the rod instantly, providing a 1400 N bidirectional hold. It is not a dynamic brake; engage it only after the rod stops.
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