Airtac BSED Clamping Double Acting Cylinder BSED80X450S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED80X450S 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, 450mm stroke, PT3/8 ports, G1/8 lock-release.
- BoreØ80 mm
- Stroke450 mm
- Static holding force3600 N
- ConfigurationDouble rod + lock
- Cylinder portPT3/8
- 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 BSED80X450S
The AirTAC BSED80X450S 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, the annular area is identical on both sides, yielding equal drive force of 2268 N each way at 0.5 MPa and 3175 N at 0.7 MPa. The rear rod is ideal for mounting flags or cams and naturally resists rotation.
A separate G1/8 release port controls the fail-safe collet mechanism, delivering a 3600 N static holding force with zero live air required. If pressure drops or an E-stop trips, the rod is clamped securely at position. Note that this is a static lock, not a dynamic brake; engage it only after the rod stops and release it only when piston sides are pressure-balanced, allowing at least 0.5 seconds.
Double Rod + 3600 N Rod Lock (Ø80mm)
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 BSED80X450S 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 BSED80X450S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED80X450S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 450 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.
Theoretical Output Force (Ø80mm)
| 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.
Model Code: Airtac BSED Clamping Double Acting Cylinder BSED80X450S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 80 | Bore size in mm. |
| ×450 | 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 BSED80X450S Is Used
Servo-Driven Machining Jaws
Utilizes the equal 3175 N both-way thrust to clamp parts firmly from both sides, while the 3600 N fail-safe lock prevents jaw separation if shop air drops during a cut.
Overhead Z-Axis Lifters
Lifts heavy platens using the double-rod anti-rotation properties, relying on the spring-applied collet to hold the 450 mm stroke position securely during air loss events.
Pallet Diverters
Shifts heavy pallets horizontally with symmetric speed and force, engaging the static rod lock to freeze the diverter arm instantly when the conveyor E-stop is activated.
Is the Airtac BSED Clamping Double Acting Cylinder BSED80X450S the Right Cylinder?
Select this 80 mm bore model when your application requires both symmetric thrust and fail-safe holding up to 3600 N. If your load requires less force, stepping down to the 63 mm bore provides 1402 N at 0.5 MPa and a 2200 N hold. If you need more capacity, stepping up to the 100 mm bore yields 3681 N at 0.5 MPa and a 5500 N hold. Always verify your load is strictly under the 3600 N holding limit.
At 450 mm of stroke, the moment loads generated by any off-center mass are amplified, so guide the load externally to prevent binding against the ISO 15552 extruded barrel. This configuration includes the -S magnet for CMSE reed or DMSE electronic sensors, a PT3/8 cylinder port, and an M20x1.5 rod thread. When ordering a replacement, match the bore, stroke, port thread, mounting style (Basic, LB, FA, or TC), and magnet option.
Quick checklist
- ✓ Need both symmetric force AND fail-safe hold?
- ✓ Load to hold ≤ 3600 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 BSED80X450S FAQ
The double-rod design provides equal drive force in both directions: 2268 N at 0.5 MPa and 3175 N at 0.7 MPa (max 324 kgf). The integrated fail-safe rod lock provides a separate bidirectional static holding force of 3600 N with no live air.
You must first restore pressure to balance both sides of the piston, then apply air to the G1/8 release port. Wait at least 0.5 seconds for the collet to disengage before commanding motion. The lock is a static holding device, not a dynamic brake, so never engage it while the rod is moving.
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