
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED80X400 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, 400mm stroke, PT3/8 ports, G1/8 lock-release.
The AirTAC BSED80X400 is a double-acting, double-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. A rod exits both ends, providing equal drive force of 2268 N each way at 0.5 MPa. The rear rod is ideal for mounting tooling, flags, or anti-rotation guides.
The fail-safe collet lock delivers a 3600 N static holding force with no live air, instantly securing the 400 mm stroke if pressure drops. Operating pressure is capped at 0.7 MPa, and the lock releases via a separate G1/8 port. This SKU has no magnet, so position sensing is not available.
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 BSED80X400 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.
| Model | Airtac BSED Clamping Double Acting Cylinder BSED80X400 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 400 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.
| 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.
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 80 | Bore size in mm. |
| ×400 | 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.
Holds a 3600 N vertical load securely mid-stroke during air loss, while the 3175 N both-way drive ensures stable up and down actuation.
Uses the rear rod for cam flags and equal 2268 N force both directions at 0.5 MPa, clamping securely via the collet during E-stops.
Provides 324 kgf maximum symmetric drive to shift heavy pallets, locking instantly with 3600 N of static hold when the line halts.
Choose this 80 mm bore when you need symmetric 3175 N drive force at 0.7 MPa alongside a 3600 N fail-safe hold. If your load requires less force, the 63 mm bore offers 1402 N at 0.5 MPa with a 2200 N hold; if you need more, the 100 mm bore provides 3681 N at 0.5 MPa and a 5500 N hold. Always verify your load is under 3600 N.
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. For this 400 mm stroke, use external guides to prevent side-loading and premature seal wear. This model uses a PT3/8 cylinder port, a G1/8 release port, and Basic, LB, FA, or TC mounting.
Quick checklist
The double-rod drive force is equal both ways: 2268 N at 0.5 MPa and 3175 N at 0.7 MPa, yielding a maximum 324 kgf drive. The static holding force of the fail-safe rod lock is 3600 N.
If air is lost, the spring-applied collet clamps the rod instantly, providing a 3600 N static hold. To release, apply pressure to the separate G1/8 port only after both cylinder sides are pressure-balanced, allowing at least 0.5 seconds.
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