
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED40X100S 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, 100mm stroke, PT1/4 ports, G1/8 lock-release.
The AirTAC BSED40X100S 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 force in both directions—528 N each way at 0.5 MPa and 739 N at 0.7 MPa. The extruded aluminum barrel provides ISO 15552 dimensional interchangeability without external tie rods.
This fail-safe collet lock delivers a 900 N static holding force with no live air required. It engages bidirectionally to secure the load if air pressure drops or an E-stop trips. The lock uses a separate G1/8 release port, and the -S suffix indicates a magnetic piston ready for CMSE reed or DMSE electronic sensors.
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 BSED40X100S 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 BSED40X100S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 100 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. |
| ×100 | 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.
Uses the 739 N equal both-way drive to shuttle a 75 kgf fixture, while the 900 N fail-safe collet locks the 16 mm rod instantly if air pressure drops mid-cycle.
Lifts a light vertical load with symmetric force, engaging the 900 N spring-applied lock to prevent gravity-driven drops when the system is at rest.
The dual-rod design resists mechanical torsion, while the rear rod carries a flag for position verification. The lock holds the 100 mm stroke rigid during inspection.
Select this 40 mm bore model when your application requires symmetric both-way force and mid-range fail-safe holding up to 900 N. If your load exceeds 900 N, step up to the 50 mm bore, which offers 825 N drive force at 0.5 MPa and 1400 N holding force. If you need less holding capacity, the 32 mm bore provides 345 N drive at 0.5 MPa and 600 N holding force.
Remember the lock is not a dynamic brake: engage it only after the rod stops, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 seconds. When replacing, match the 100 mm stroke, PT1/4 cylinder port, and your chosen mounting (Basic, LB, FA, or TC).
Quick checklist
The double-rod drive force is equal both ways: 528 N at 0.5 MPa and 739 N at 0.7 MPa (max 75 kgf). The integrated fail-safe rod lock provides a separate 900 N static holding force with no live air required.
The lock is spring-applied and air-released via a dedicated G1/8 port. It is not a dynamic brake, so you must engage it only after the rod stops. To release, ensure both piston sides are pressure-balanced and allow at least 0.5 seconds for the collet to disengage.
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