Airtac BSED Clamping Double Acting Cylinder BSED80X350S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED80X350S 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, 350mm stroke, PT3/8 ports, G1/8 lock-release.
- BoreØ80 mm
- Stroke350 mm
- Static holding force3600 N
- ConfigurationDouble rod + lock
- Cylinder portPT3/8
- Lock-release portG1/8
About the Airtac BSED Clamping Double Acting Cylinder BSED80X350S
The AirTAC BSED80X350S 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 2268 N each way at 0.5 MPa. The rear rod is ideal for mounting flags or anti-rotation cams while resisting torsional twist.
This fail-safe collet lock provides a 3600 N static holding force without consuming live air. If pressure drops or an E-stop trips, the rod clamps instantly. It uses a dedicated G1/8 release port, operates at 0.15-0.7 MPa, and includes adjustable air cushions at both ends. The -S magnet supports CMSE reed and DMSE electronic sensors.
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 BSED80X350S 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 BSED80X350S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED80X350S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 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 BSED80X350S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 80 | Bore size in mm. |
| ×350 | 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 BSED80X350S Is Used
Overhead Z-Axis Lifts
Holds vertical lifting loads securely with 3600 N of fail-safe clamping force during air loss, while the double-rod design provides 3175 N of equal lifting and lowering force.
Pallet Indexing Stops
Uses the rear rod for cam-actuated position feedback while the front rod halts heavy pallets, delivering 2268 N of symmetrical stopping and retracting force at 0.5 MPa.
Dual-Tool Machining
Mounts a secondary tool or flag on the opposite rod end for synchronized operations, maintaining anti-rotation stability and locking instantly at 3600 N for part changes.
Is the Airtac BSED Clamping Double Acting Cylinder BSED80X350S the Right Cylinder?
Select this 80 mm bore when an application requires both-way symmetric drive (3175 N at 0.7 MPa) plus a 3600 N static hold. If your load needs less force, the 63 mm bore offers 1402 N at 0.5 MPa and a 2200 N hold; stepping up to the 100 mm bore yields 3681 N at 0.5 MPa and a 5500 N hold. Always verify your load is under 3600 N.
Engage the lock only after the rod stops, and release it only when piston sides are pressure-balanced, allowing at least 0.5 s. For this 350 mm stroke, add external guide rails to prevent side-loading and protect the M20x1.5 rod threads. Replacement matches require 80 mm bore, 350 mm stroke, PT3/8 port, and your chosen mounting (Basic, LB, FA, or TC).
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 BSED80X350S FAQ
The integrated spring-applied collet engages instantly, providing a 3600 N static holding force to keep the rod locked in position without live air. It is a static lock, not a dynamic brake, so engage it only after the rod stops.
This double-rod cylinder delivers equal force both ways: 2268 N at 0.5 MPa and 3175 N at 0.7 MPa, with a max drive of 324 kgf. The separate fail-safe rod lock provides a 3600 N static holding force.
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