Airtac BSED Clamping Double Acting Cylinder BSED40X800S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED40X800S 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, 800mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ40 mm
- Stroke800 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 BSED40X800S
The AirTAC BSED40X800S is a double-acting, double-rod ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. A rod exits both ends, delivering equal force and speed in both directions—yielding about 528 N each way at 0.5 MPa. The extruded aluminum barrel provides ISO 15552 dimensional interchangeability without external tie rods.
The fail-safe collet lock provides a 900 N static holding force with no live air required. A separate G1/8 release port controls the lock, which must only engage after the rod stops and release when both piston sides are pressure-balanced (allow >=0.5 s). The -S magnet supports CMSE reed and DMSE electronic sensors.
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 BSED40X800S 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 BSED40X800S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED40X800S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 800 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 BSED40X800S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 40 | Bore size in mm. |
| ×800 | 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 BSED40X800S Is Used
Vertical Lift Stations
Provides 739 N of equal both-way force for raising and lowering heavy platens, while the 900 N spring-applied lock holds the load safely if air pressure drops.
Pallet Transfer Stops
The double-rod design allows a rear rod to mount a flag cam for position feedback, while the collet lock securely halts the 800mm stroke mid-travel with zero live air.
Dual-End Tooling
Equal force both ways enables precise bidirectional machining or clamping, with the fail-safe lock preventing drift during emergency stops.
Is the Airtac BSED Clamping Double Acting Cylinder BSED40X800S the Right Cylinder?
Select this 40mm bore when an application requires 739 N of both-way drive force at 0.7 MPa alongside a 900 N fail-safe hold. If your load exceeds 900 N, step up to the 50mm bore (1154 N drive, 1400 N hold). If you need less force, the 32mm bore offers 483 N drive and 600 N hold. At 800mm stroke, use an external guide to prevent side-load binding. Always engage the lock only after the rod stops. Replacement match: 40mm bore, 800mm stroke, PT1/4 port, magnet, Basic/LB/FA/TC mount.
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 BSED40X800S FAQ
The spring-applied collet immediately clamps the rod, providing a 900 N static holding force with no live air. It is a fail-safe hold, not a dynamic brake, so engage it only after the rod stops.
The double-rod design delivers equal force both ways: 528 N at 0.5 MPa and 739 N at 0.7 MPa (max 75 kgf). The separate static holding force of the lock is 900 N.
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Standard models are processed and dispatched in 3-5 business days.
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