Airtac BSED Clamping Double Acting Cylinder BSED40X80S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED40X80S 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, 80mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ40 mm
- Stroke80 mm
- Static holding force900 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 BSED40X80S
The AirTAC BSED40X80S 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—about 528 N each way at 0.5 MPa. The collet lock provides a bidirectional static holding force of 900 N with no live air required.
This fail-safe lock engages automatically if air pressure drops, but it is a holding device, not a dynamic brake. Engage the lock only after the rod stops, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 s. The extruded aluminum barrel has no external tie rods, and the separate G1/8 release port operates independently from the PT1/4 cylinder ports.
Double Rod + 900 N Rod Lock (Ø40mm)
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 BSED40X80S 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 BSED40X80S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED40X80S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 80 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.
Theoretical Output Force (Ø40mm)
| 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.
Model Code: Airtac BSED Clamping Double Acting Cylinder BSED40X80S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 40 | Bore size in mm. |
| ×80 | 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 BSED40X80S Is Used
Vertical Lift Jigs
Holds a 900 N vertical jig assembly securely in place during an air loss event, while the 739 N equal both-way drive ensures smooth up and down positioning.
Symmetric Tooling Transfer
Utilizes the dual exiting rods to mount a rear cam flag for timing sensors, providing identical 528 N push and pull force at 0.5 MPa for precise tool transfers.
Mid-Stop Conveyor Gates
Employs the fail-safe collet lock to clamp the rod at 900 N static force when pallet flow stops, preventing drift even if the 0.15-0.7 MPa air supply is interrupted.
Is the Airtac BSED Clamping Double Acting Cylinder BSED40X80S the Right Cylinder?
Select this 40 mm bore model when your application requires symmetric drive force and a 900 N fail-safe holding capacity. If your load exceeds 900 N, step up to the 50 mm bore, which provides 825 N of drive force at 0.5 MPa and a 1400 N holding force. If you need less holding capacity, the 32 mm bore offers 345 N of drive force at 0.5 MPa and a 600 N hold.
Always verify that the static load to be held is at or below 900 N. The equal both-way drive yields 739 N at 0.7 MPa. This unit includes the -S magnet for CMSE reed and DMSE electronic sensors. Mounting options are limited to Basic, LB, FA, and TC. For this 80 mm stroke, ensure adequate guide support to prevent side-load wear.
Quick checklist
- ✓ Need both symmetric force AND fail-safe hold?
- ✓ Load to hold ≤ 900 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 BSED40X80S FAQ
The spring-applied collet clamps the rod automatically when air is lost or E-stop is tripped, providing a 900 N static holding force. The drive force is equal both ways: 528 N at 0.5 MPa, 739 N at 0.7 MPa, with a maximum drive of 75 kgf. It is a static lock, not a dynamic brake.
Apply pressure to the separate G1/8 release port only after the cylinder piston sides are pressure-balanced. Allow at least 0.5 seconds for the air-released collet to disengage before commanding motion, ensuring the rod is already stopped.
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