Airtac BSED Clamping Double Acting Cylinder BSED80X400S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED80X400S 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, 400mm stroke, PT3/8 ports, G1/8 lock-release.
- BoreØ80 mm
- Stroke400 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 BSED80X400S
The AirTAC BSED80X400S is a double-acting, double-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. A rod exits both ends, providing equal drive force in both directions—about 2268 N each way at 0.5 MPa and 3175 N at 0.7 MPa. The rear rod resists rotation and can carry a flag or cam for mid-travel signaling.
The fail-safe collet lock delivers a 3600 N static holding force with no live air required. It engages bidirectionally to secure the load if pressure drops or an E-stop trips. Remember, this is a static lock, 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. A separate G1/8 release port controls the lock, while adjustable air cushions (36 mm both ends) absorb end-of-stroke impact.
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 BSED80X400S 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 BSED80X400S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED80X400S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 400 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 BSED80X400S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 80 | Bore size in mm. |
| ×400 | 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 BSED80X400S Is Used
Machining Center Clamps
Holds a 3175 N machining fixture securely in place with a 3600 N fail-safe lock during tool changes, while the double-rod ensures equal clamping and retraction speed.
Pallet Stopper Gate
Uses the rear rod for a cam flag to confirm gate position. The 3600 N static lock holds the 80 mm bore gate rigid against moving pallets when air is removed.
Vertical Lift Station
Provides 3175 N of balanced lifting and lowering force. The spring-applied collet engages instantly if air pressure drops, arresting the load up to 3600 N.
Is the Airtac BSED Clamping Double Acting Cylinder BSED80X400S the Right Cylinder?
Select this 80 mm bore model when your application demands symmetric force (3175 N both ways) and reliable mid-stroke holding. Verify your load does not exceed the 3600 N static holding force. If you need less force, the 63 mm bore offers 1402 N at 0.5 MPa and a 2200 N hold; if you need more, the 100 mm bore provides 3681 N at 0.5 MPa and a 5500 N hold.
This 400 mm stroke requires external guide rails to prevent side-load damage to the seals and bearings. The -S magnet option supports CMSE reed and DMSE electronic sensors for position feedback. For replacements, match the 80 mm bore, 400 mm stroke, PT3/8 cylinder port, and your mounting style (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 BSED80X400S FAQ
The integrated spring-applied collet engages instantly, providing a bidirectional 3600 N static holding force to keep the rod at its stopped position. It is a fail-safe static lock, not a dynamic brake, so it must only engage after the rod stops moving.
The double-rod design delivers equal force both ways: 2268 N at 0.5 MPa and 3175 N at 0.7 MPa, with a maximum drive force of 324 kgf. The static holding force of the lock is 3600 N, and the operating speed range is 30-800 mm/s.
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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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