Airtac BSED Clamping Double Acting Cylinder BSED80X25S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED80X25S 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, 25mm stroke, PT3/8 ports, G1/8 lock-release.
- BoreØ80 mm
- Stroke25 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 BSED80X25S
The AirTAC BSED80X25S 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—about 2268 N each way at 0.5 MPa. The rear rod can carry a flag or cam and resists rotation.
A collet clamps the rod with a bidirectional static holding force of 3600 N, maintaining position with no live air if pressure drops or an E-stop trips. The lock is a holding device, not a dynamic brake; engage it only after the rod stops, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 s. The unit uses a separate G1/8 release port, and 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 BSED80X25S 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 BSED80X25S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED80X25S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 25 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 BSED80X25S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 80 | Bore size in mm. |
| ×25 | 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 BSED80X25S Is Used
Vertical Lift Jaws
Holds a vertical gripper assembly steady at 3175 N drive force both ways, engaging the 3600 N lock to prevent dropping when air is lost.
Indexing Mill Stop
Uses the rear exiting rod for a cam flag while the collet locks the 2268 N bidirectional force in place during machining pauses.
Pallet Diverter Park
Diverts loads equally in both directions and relies on the fail-safe spring-applied collet to hold position during E-stops.
Is the Airtac BSED Clamping Double Acting Cylinder BSED80X25S the Right Cylinder?
Choose this 80 mm bore when you need symmetric both-way force and a fail-safe hold up to 3600 N. If your load to hold is lower, the 63 mm bore offers 1402 N drive force at 0.5 MPa and a 2200 N holding force. If you need more, step up to the 100 mm bore, which provides 3681 N at 0.5 MPa and a 5500 N hold. Operating pressure is capped at 0.7 MPa.
Always verify your load does not exceed the 3600 N static holding force. For safety, engage the lock only after the rod completely stops, and release it only when both piston sides are pressure-balanced. When replacing, match the 80 mm bore, 25 mm stroke, PT3/8 cylinder port, and the integrated magnet. For any stroke 300 mm or longer, add an external guide to manage side loads.
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 BSED80X25S FAQ
The integrated rod lock is spring-applied, so it automatically clamps the rod with a 3600 N static holding force to maintain position. It is a fail-safe holding device, not a dynamic brake, and requires no live air.
The double-rod drive force is equal both ways at 2268 N at 0.5 MPa and 3175 N at 0.7 MPa, with a maximum drive of 324 kgf. The static holding force of the lock is 3600 N.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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