
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED40X200 combines a double-rod ISO 15552 cylinder — a Ø16mm rod out BOTH ends for equal force both directions — with an integrated spring-applied, air-released ROD LOCK that holds up to 900 N in either direction if air is lost. Ø40mm bore, 200mm stroke, PT1/4 ports, G1/8 lock-release.
The AirTAC BSED40X200 is a double-acting, double-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. Because a rod exits both ends, it delivers equal drive force in both directions—generating 528 N each way at 0.5 MPa and 739 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 clamps the rod bidirectionally with a static holding force of 900 N, maintaining position without live air. It engages via a dedicated G1/8 release port and is strictly a static hold, not a dynamic brake. This SKU has no magnet (-S omitted), meaning CMSE or DMSE position sensors cannot be used without a model change.
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 BSED40X200 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 BSED40X200 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 mm |
| Static holding force | 900 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 800 mm |
Specifications follow the official AirTAC BSED datasheet. Rod thread M12×1.25 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 | 528 N |
| 0.7 MPa (max) | 739 N |
| Max drive (@0.7 MPa) | 75 kgf |
A rod exits both ends, so force is equal on extend and retract. Drive force is separate from the 900 N static lock holding force. Size with a safety margin.
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 40 | Bore size in mm. |
| ×200 | 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.
Lifts 75 kgf loads at 0.7 MPa with equal both-way force, engaging the 900 N fail-safe collet to prevent drops when air pressure is removed.
Halts moving items using symmetric double-rod motion, holding the stopper blade securely mid-stroke with zero live air required.
Transfers parts equally in both directions while the rear rod supports external cams, locking reliably during E-stop events.
Select this 40 mm bore when an application requires symmetric both-way force alongside a 900 N fail-safe hold. If your load requires less force, stepping down to the 32 mm bore provides 345 N at 0.5 MPa with a 600 N holding capacity. If you need more power, stepping up to the 50 mm bore yields 825 N at 0.5 MPa and a 1400 N hold. Always verify your load is at or below the 900 N static limit.
For safe operation, 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. To replace this unit, match the 40 mm bore, 200 mm stroke, PT1/4 cylinder port, and your specific mounting choice (Basic, LB, FA, or TC).
Quick checklist
The drive force is equal in both directions, providing 528 N at 0.5 MPa and 739 N at 0.7 MPa (max 75 kgf). The static fail-safe holding force of the integrated rod lock is 900 N.
The spring-applied collet clamps the rod instantly, providing up to 900 N of bidirectional static hold. To release it safely, restore pressure to the G1/8 release port, balance both piston sides, and allow at least 0.5 seconds.
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