Airtac BSED Clamping Double Acting Cylinder BSED80X50
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED80X50 combines a double-rod ISO 15552 cylinder — a Ø25mm rod out BOTH ends for equal force both directions — with an integrated spring-applied, air-released ROD LOCK that holds up to 3600 N in either direction if air is lost. Ø80mm bore, 50mm stroke, PT3/8 ports, G1/8 lock-release.
- BoreØ80 mm
- Stroke50 mm
- Static holding force3600 N
- ConfigurationDouble rod + lock
- Cylinder portPT3/8
- Lock-release portG1/8
About the Airtac BSED Clamping Double Acting Cylinder BSED80X50
The AirTAC BSED80X50 is a double-acting, double-rod ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. A rod exits both ends, providing equal thrust and speed in both directions—about 2268 N each way at 0.5 MPa. The rear rod is ideal for mounting flags or cams and resists rotation.
If air pressure drops below 0.15 MPa or an E-stop trips, the internal collet clamps the 25 mm rod to provide a 3600 N bidirectional static hold. This fail-safe lock requires no live air. Remember to engage the lock only after the rod stops, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 seconds.
Double Rod + 3600 N Rod Lock (Ø80mm)
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 BSED80X50 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 BSED80X50 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED80X50 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 50 mm |
| Static holding force | 3600 N |
| Cylinder port | PT3/8 |
| 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 M20×1.5 both ends. Mounting (BSED): Basic, LB, FA, TC. Port options: PT (standard) / G (BSPP); lock-release port is G1/8.
Theoretical Output Force (Ø80mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 2268 N |
| 0.7 MPa (max) | 3175 N |
| Max drive (@0.7 MPa) | 324 kgf |
A rod exits both ends, so force is equal on extend and retract. Drive force is separate from the 3600 N static lock holding force. Size with a safety margin.
Model Code: Airtac BSED Clamping Double Acting Cylinder BSED80X50
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 80 | Bore size in mm. |
| ×50 | 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 BSED80X50 Is Used
Vertical Lift Stations
Lift 324 kgf loads symmetrically both ways and secure the 25 mm rod with 3600 N of static holding force to prevent drops during air loss.
Multi-Tool Machining
Mount a secondary cam or tool on the rear rod for equal both-way actuation, engaging the collet lock only after the spindle stops.
Pallet Stop Gates
Hold indexing pallets securely in place with a 3600 N fail-safe clamp that activates instantly if the 0.15-0.7 MPa air supply is interrupted.
Is the Airtac BSED Clamping Double Acting Cylinder BSED80X50 the Right Cylinder?
Choose this 80 mm bore when you need symmetric both-way force and fail-safe holding. Verify your static load does not exceed the 3600 N holding force. If you need less force, the 63 mm bore offers 1402 N at 0.5 MPa and a 2200 N hold; if you need more, the 100 mm bore provides 3681 N at 0.5 MPa and a 5500 N hold.
This SKU has no -S magnet, so it does not support position sensing. The cylinder port is PT3/8, and the separate lock-release port is G1/8. Operating pressure is capped at 0.7 MPa. For safety-rated or man-rated overhead loads, always use external safety controls, as the lock is a static clamp, not a dynamic brake.
Quick checklist
- ✓ Need both symmetric force AND fail-safe hold?
- ✓ Load to hold ≤ 3600 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 BSED80X50 FAQ
The double-rod drive force is equal both ways: 2268 N at 0.5 MPa and 3175 N at 0.7 MPa, with a max drive of 324 kgf. The integrated spring-applied rod lock provides a 3600 N static holding force with no live air.
Release the lock only after the rod has stopped moving and both piston sides are pressure-balanced. Apply air to the G1/8 release port and allow at least 0.5 seconds for the collet to disengage before driving the cylinder.
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