Airtac BSED Clamping Double Acting Cylinder BSED50X900
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED50X900 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, 900mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ50 mm
- Stroke900 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 BSED50X900
The AirTAC BSED50X900 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 force in both directions—about 825 N each way at 0.5 MPa. The fail-safe collet lock provides a 1400 N static holding force with no live air required.
This extruded aluminum body cylinder features a separate G1/8 lock-release port and adjustable air cushions at both ends. Because this SKU lacks a magnet (-S), it does not support CMSE or DMSE position sensors. The 900 mm stroke requires external guide support to prevent side-loading damage.
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 BSED50X900 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 BSED50X900 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X900 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 900 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 BSED50X900
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 50 | Bore size in mm. |
| ×900 | 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 BSED50X900 Is Used
Vertical Lift Stations
Holds elevated loads securely with 1400 N of static force during air loss, while the double-rod provides 825 N of equal lifting and lowering force.
Pallet Stops
Extending a stop gate in both directions with symmetric 1154 N drive force, then locking it rigidly with the spring-applied collet to halt heavy pallets.
Indexing Chutes
Uses the rear rod for a flag cam while the front rod pushes parts, relying on the fail-safe lock to freeze the 900 mm stroke exactly where needed.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X900 the Right Cylinder?
Choose this 50 mm bore model when you need symmetric both-way force (1154 N at 0.7 MPa) and a 1400 N fail-safe hold. If your load exceeds 1400 N, step up to the 63 mm bore (1962 N drive, 2200 N hold). If you need less force, the 40 mm bore offers 739 N drive and 900 N hold. Always confirm the load is below 1400 N before relying on the lock.
For the 900 mm stroke, use a linear guide to manage side loads and prevent binding. Engage the lock only after the rod fully stops, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 s. Replacement parts must match the 50 mm bore, 900 mm stroke, PT1/4 port, and your chosen mounting (Basic, LB, FA, or TC).
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 BSED50X900 FAQ
The integrated spring-applied collet instantly clamps the rod, providing a 1400 N static holding force to prevent the load from dropping. It is a fail-safe lock, not a dynamic brake, so it only engages after the rod stops 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 speed is 30-800 mm/s, capped at a 0.7 MPa operating pressure.
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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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