Airtac BSED Clamping Double Acting Cylinder BSED50X450S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED50X450S combines a double-rod ISO 15552 cylinder — a Ø20mm rod out BOTH ends for equal force both directions — with an integrated spring-applied, air-released ROD LOCK that holds up to 1400 N in either direction if air is lost. Ø50mm bore, 450mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ50 mm
- Stroke450 mm
- Static holding force1400 N
- ConfigurationDouble rod + lock
- 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 BSED Clamping Double Acting Cylinder BSED50X450S
The AirTAC BSED50X450S is a double-acting, double-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. A rod exits both ends, providing equal drive force of 825 N each way at 0.5 MPa and 1154 N at 0.7 MPa. The rear rod can mount tooling or a flag cam while resisting rotation.
A separate G1/8 release port controls the fail-safe collet, which delivers a 1400 N static holding force with no live air. The lock engages only after the rod stops and releases when both piston sides are pressure-balanced, requiring at least 0.5 s. This -S model includes a magnet for CMSE reed and DMSE electronic sensors.
Double Rod + 1400 N Rod Lock (Ø50mm)
A rod exits both ends for symmetric force and back-rod tooling, and a spring clamps the collet so the Airtac BSED Clamping Double Acting Cylinder BSED50X450S holds its position in both directions on air loss or E-stop. Apply 0.15–0.7 MPa to the G1/8 release port to unlock. Engage only after the rod has stopped (not a dynamic brake), and release only when both piston sides are pressure-balanced; allow ≥0.5 s for full release.
Airtac BSED Clamping Double Acting Cylinder BSED50X450S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X450S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 450 mm |
| Static holding force | 1400 N |
| Cylinder port | PT1/4 |
| Lock-release port | G1/8 |
| Configuration | Double rod, double acting |
|---|---|
| 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 |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC BSED datasheet. Rod thread M16×1.5 both ends. Mounting (BSED): Basic, LB, FA, TC. Port options: PT (standard) / G (BSPP); lock-release port is G1/8.
Theoretical Output Force (Ø50mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 825 N |
| 0.7 MPa (max) | 1155 N |
| Max drive (@0.7 MPa) | 118 kgf |
A rod exits both ends, so force is equal on extend and retract. Drive force is separate from the 1400 N static lock holding force. Size with a safety margin.
Model Code: Airtac BSED Clamping Double Acting Cylinder BSED50X450S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod 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 (BSED): Basic, LB, FA, TC. Related: SED (double rod, no lock), BSE (single-rod rod lock). Sensors CMSE/DMSE fit magnetic BSED.
Where the Airtac BSED Clamping Double Acting Cylinder BSED50X450S Is Used
Vertical Lift Interlocks
Holds a 1400 N vertical load safely during E-stops, while the 1154 N equal both-way drive raises and lowers the platform.
Pallet Stopper Gates
The double-rod design allows a flag cam on the rear rod to trigger sensors, while the collet locks the 825 N stopper arm in place.
Mid-Stroke Machining
Clamps a workpiece securely for machining; the fail-safe lock maintains position even if the 0.7 MPa air supply drops.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X450S the Right Cylinder?
Select this 50 mm bore model when an application demands both symmetric thrust and fail-safe holding up to 1400 N. If your load requires less hold, the 40 mm bore offers 739 N drive force at 0.7 MPa and 900 N holding. For heavier needs, the 63 mm bore provides 1962 N drive and 2200 N hold. Always verify the load is below the 1400 N limit.
With a 450 mm stroke, use a guide to manage side loads and prevent rod binding. The lock is a static hold, not a dynamic brake; engage it only after motion stops. Release only when cylinder pressure is balanced. Replacement matches the 50 mm bore, 450 mm stroke, PT1/4 port, and -S magnet options.
Quick checklist
- ✓ Need both symmetric force AND fail-safe hold?
- ✓ Load to hold ≤ 1400 N?
- ✓ Back-rod space for tooling/flag
- ✓ Lock engaged only when stopped
- ✓ G1/8 release-air line available
Installation & Safety Notes
- check Engage the lock only after the rod has stopped — not 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 Support both rod ends; avoid side load.
- check Use BSED mounting (Basic/LB/FA/TC).
Airtac BSED Clamping Double Acting Cylinder BSED50X450S FAQ
The spring-applied collet engages to provide a 1400 N static holding force, locking the rod in place. It is a fail-safe static hold, not a dynamic brake, so it must engage only after the rod stops.
The equal both-way drive force is 825 N at 0.5 MPa and 1154 N at 0.7 MPa, with a maximum drive of 118 kgf. The separate static holding force of the lock is 1400 N.
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Standard models are processed and dispatched in 3-5 business days.
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