Airtac BSED Clamping Double Acting Cylinder BSED50X500
The AirTAC BSED Clamping Double Acting Cylinder BSED50X500 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 BSED50X500
The AirTAC BSED50X500 is a double-acting, double-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. Because a rod exits both ends, it delivers equal drive force in both directions—825 N each way at 0.5 MPa and 1154 N at 0.7 MPa. The rear rod is ideal for mounting cams or flags and naturally resists rotation.
The fail-safe collet lock provides a 1400 N static holding force with no live air required. It engages only after the rod stops and releases via a dedicated G1/8 port once piston sides are pressure-balanced. This 500 mm stroke SKU ships without a magnet (-S omitted), so it does not support CMSE or DMSE position 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 BSED50X500 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 BSED50X500 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X500 |
|---|---|
| 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 BSED50X500
| 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 BSED50X500 Is Used
Overhead Lift Dwell
Holds a 1400 N vertical load safely mid-stroke during air loss, while the 825 N both-way drive smoothly raises and lowers the assembly.
Pallet Stop Gate
Uses the double-rod's equal extension and retraction speeds to cycle a 500 mm stop gate, locking firmly via the collet when E-stops are triggered.
Symmetric Clamping Press
Provides 1154 N of identical clamping force in both directions, using the rear rod for an external flag while the lock holds the workpiece without air.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X500 the Right Cylinder?
Select this 50 mm bore when an application demands 825 N of symmetric thrust at 0.5 MPa combined with a 1400 N static holding capacity. If your load requires less force, the 40 mm bore offers 528 N drive and 900 N holding; if you need more, step up to the 63 mm bore for 1402 N drive and 2200 N holding. Always verify your load is under 1400 N before relying on the lock.
At 500 mm, this stroke requires external guide rails to prevent side-load damage to the seals and lock collet. To replace, match the 50 mm bore, 500 mm stroke, PT1/4 cylinder port, and mounting choice (Basic, LB, FA, or TC). Remember to allow at least 0.5 seconds for the lock to release after balancing pressure.
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 BSED50X500 FAQ
If air is lost, the spring-applied collet immediately clamps the rod, providing a 1400 N static holding force to keep the load in place. It is a fail-safe lock, not a dynamic brake, so it must only engage after the rod has stopped moving.
The drive force is equal both ways: 825 N at 0.5 MPa and 1154 N at 0.7 MPa (max 118 kgf). The static holding force of the lock is 1400 N. Operating pressure is 0.15-0.7 MPa, and speed ranges from 30-800 mm/s.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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