Airtac BSED Clamping Double Acting Cylinder BSED50X225S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED50X225S 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, 225mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ50 mm
- Stroke225 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 BSED50X225S
The AirTAC BSED50X225S is a double-acting double-rod ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. A rod exits both ends, delivering equal drive force of 825 N each way at 0.5 MPa and 1154 N at 0.7 MPa. The rear rod is ideal for mounting flags or cams and resists rotation.
This fail-safe collet lock provides a 1400 N static holding force without requiring live air. It engages bidirectionally to secure the load if pressure drops. The lock uses a separate G1/8 release port, and the included -S magnet supports CMSE reed and DMSE electronic sensors for position tracking.
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 BSED50X225S 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 BSED50X225S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X225S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 225 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 BSED50X225S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 50 | Bore size in mm. |
| ×225 | 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 BSED50X225S Is Used
Mid-Force Assembly Stations
Drives 1154 N equal both-way clamping while the 1400 N lock holds position during air loss.
Pallet Stop and Hold
The double rod allows a rear cam for timing while the collet locks the 50 mm rod statically.
Z-Axis Lifts
Provides 825 N both-way lift at 0.5 MPa and fails safe to 1400 N if E-stop trips or air drops.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X225S the Right Cylinder?
Select this 50 mm bore when you need symmetric 1154 N both-way force alongside a 1400 N fail-safe hold. If your load requires less force, the 40 mm bore offers 528 N at 0.5 MPa with a 900 N hold. If you need more, step up to the 63 mm bore providing 1402 N at 0.5 MPa and a 2200 N hold.
Always verify your load is within the 1400 N static limit and engage the lock only after the rod completely stops. To release safely, pressure-balance both piston sides and allow at least 0.5 seconds before moving. For this 225 mm stroke, use a guide to prevent side-load damage. Replacement matches: 50 mm bore, 225 mm stroke, PT1/4 cylinder port, and -S magnet.
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 BSED50X225S FAQ
The spring-applied collet immediately clamps the rod, providing a 1400 N bidirectional static hold with no live air. It is a holding lock, not a dynamic brake, so engage it only after the rod stops.
The double-rod design delivers equal force both ways: 825 N at 0.5 MPa and 1154 N at 0.7 MPa, with a max drive of 118 kgf. The integrated fail-safe rod lock provides a separate 1400 N static holding force.
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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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