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
- 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 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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