Airtac BSED Clamping Double Acting Cylinder BSED50X800
The AirTAC BSED Clamping Double Acting Cylinder BSED50X800 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, 800mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ50 mm
- Stroke800 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 BSED50X800
The AirTAC BSED50X800 is a double-acting, double-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. A rod exits both ends, delivering equal drive force in both directions—825 N each way at 0.5 MPa and 1154 N at 0.7 MPa. The rear rod provides a convenient mounting point for tooling, flags, or anti-rotation guidance.
The fail-safe collet lock delivers a 1400 N static holding force with zero live air required. A separate G1/8 release port controls the unlock function. This unit uses the default PT1/4 cylinder porting, a 20 mm rod with an M16x1.5 thread, and lacks a piston magnet, meaning no CMSE or DMSE position sensors can be fitted to this specific SKU.
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 BSED50X800 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 BSED50X800 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED50X800 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 800 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 BSED50X800
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 50 | Bore size in mm. |
| ×800 | 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 BSED50X800 Is Used
Overhead Lift Stations
Holds a 1400 N vertical load safely in place during an E-stop or air loss event, while the double-rod design provides 1154 N of equal lifting and lowering force.
Pallet Transfer Stops
Provides a rigid bidirectional stop for heavy pallets, using the 825 N drive at 0.5 MPa to index and the spring collet to lock position securely during transfers.
Dual-Tool Machining
Mounts a cutting tool on one end and a cam flag on the rear rod, utilizing equal force both ways for balanced machining cycles up to 800 mm.
Is the Airtac BSED Clamping Double Acting Cylinder BSED50X800 the Right Cylinder?
Select this 50 mm bore model when your application requires symmetric both-way force and mid-stroke fail-safe holding up to 1400 N. If your load exceeds 1400 N, step up to the 63 mm bore (1962 N drive at 0.7 MPa, 2200 N holding force). If you need less force, the 40 mm bore offers 739 N drive and 900 N holding. Always engage the lock only after the rod completely stops, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 seconds for the transition.
With an 800 mm stroke, the extended rod is highly susceptible to side loads and buckling. You must use external linear guides to support the load and prevent binding. This cylinder supports Basic, LB, FA, and TC mounting styles. To replace this unit, match the 50 mm bore, 800 mm stroke, PT1/4 ports, and the non-magnet configuration.
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 BSED50X800 FAQ
The spring-applied collet instantly clamps the rod, providing a 1400 N static bidirectional holding force with no live air. It is a fail-safe lock, not a dynamic brake, so it must only be engaged after the rod stops moving.
The equal both-way drive force is 825 N at 0.5 MPa and 1154 N at 0.7 MPa (max 118 kgf). The static holding force is 1400 N. Operating pressure is 0.15-0.7 MPa, and the speed range is 30-800 mm/s.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
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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