Airtac BSED Clamping Double Acting Cylinder BSED50X500S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED50X500S 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, 500mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ50 mm
- Stroke500 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 BSED50X500S
The AirTAC BSED50X500S 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 a maximum of 118 kgf at 0.7 MPa. The rear rod is ideal for mounting flags or cams and helps resist rotation.
With no live air, the internal collet clamps the rod to deliver a 1400 N static fail-safe holding force. The lock is controlled via a separate G1/8 release port and operates at 0.15-0.7 MPa. This model includes a magnet for position sensing using CMSE reed or 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 BSED50X500S 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 BSED50X500S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X500S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 500 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 BSED50X500S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 50 | Bore size in mm. |
| ×500 | 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 BSED50X500S Is Used
Overhead Lift Stations
Holds vertical lifting loads securely with 1400 N of static force during air loss, while the double-rod design delivers 1154 N of equal lifting and lowering power.
Pallet Stopper Arms
Uses the rear rod for cam-actuated position feedback while the front rod cycles 825 N of stopping force at 0.5 MPa, locking instantly if E-stop is hit.
Dual-Tool Transfer
Mounts a workpiece on one end and a flag on the other for balanced 500 mm travel, maintaining equal 1154 N force in both directions.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X500S the Right Cylinder?
Select this 50 mm bore when you need symmetric both-way force and fail-safe holding up to 1400 N. If your load requires less force, the 40 mm bore offers 528 N at 0.5 MPa and 900 N holding. If you need more, the 63 mm bore provides 1402 N at 0.5 MPa and 2200 N holding. Always verify your load is under 1400 N and engage the lock only after the rod stops completely.
At 500 mm stroke, use a guide to prevent side-load damage to the seals. To release the lock safely, pressure-balance both piston sides and allow at least 0.5 seconds before moving. This configuration uses a PT1/4 cylinder port, M16x1.5 rod thread, and includes the -S magnet option.
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 BSED50X500S FAQ
The spring-applied collet immediately clamps the rod, delivering a 1400 N static holding force to keep the load in place. It is a fail-safe lock, not a dynamic brake, so it only engages after the rod stops.
The equal both-way drive force is 825 N at 0.5 MPa and 1154 N at 0.7 MPa, equating to 118 kgf max drive. The fail-safe static holding force of the integrated lock is 1400 N.
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Standard models are processed and dispatched in 3-5 business days.
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