Airtac BSED Clamping Double Acting Cylinder BSED80X250
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED80X250 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, 250mm stroke, PT3/8 ports, G1/8 lock-release.
- BoreØ80 mm
- Stroke250 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 BSED80X250
The AirTAC BSED80X250 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 of 2268 N each way at 0.5 MPa and 3175 N at 0.7 MPa. This symmetric design is ideal for mounting rear-rod tooling or flags while resisting rotation.
The integrated collet lock delivers a 3600 N bidirectional static holding force with no live air required. It engages automatically if air pressure drops, securing the load. The lock operates via a separate G1/8 release port, and the cylinder features adjustable air cushions at both ends (36 mm cushion length) to absorb impact. Note this SKU ships without a magnet (-S), so it does not support CMSE or DMSE position 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 BSED80X250 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 BSED80X250 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED80X250 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 250 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 BSED80X250
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 80 | Bore size in mm. |
| ×250 | 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 BSED80X250 Is Used
Vertical Lifting Jigs
Holds elevated platens securely against gravity with 3600 N of fail-safe force, engaging instantly if air pressure drops during a vertical lift cycle.
Dual-Tool Machining Stations
Uses the equal 3175 N both-way force to actuate cutting or clamping tools on both strokes, with the rear rod available for cam-triggered sequencing.
Heavy Pallet Stops
Locks the extended stop pin in place to halt heavy conveyor pallets, maintaining a rigid 3600 N barrier without wasting continuous compressed air.
Is the Airtac BSED Clamping Double Acting Cylinder BSED80X250 the Right Cylinder?
Select this 80 mm bore cylinder when your application requires both symmetric force (3175 N at 0.7 MPa) and a fail-safe hold up to 3600 N. If your load requires less force, the 63 mm bore offers 1402 N at 0.5 MPa and a 2200 N hold; for heavier loads, the 100 mm bore provides 3681 N at 0.5 MPa and a 5500 N hold. Always verify your static load is within the 3600 N holding limit.
The rod lock is a static holding device, not a dynamic brake; engage it only after the rod stops moving, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 seconds. For this 250 mm stroke, ensure adequate guide support to prevent side loads from damaging the seals. Replacement matches require the 80 mm bore, 250 mm stroke, PT3/8 port, and your specific mounting choice (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 BSED80X250 FAQ
The spring-applied collet lock engages automatically, providing a 3600 N bidirectional static hold to keep the rod at its current position. It is a fail-safe lock, not a dynamic brake, so it only holds after the rod has stopped moving.
The double-rod design provides equal force in both directions: 2268 N at 0.5 MPa and 3175 N at 0.7 MPa (max 324 kgf). This drive force is separate from the 3600 N static holding force of the rod lock, which holds the load with no live air.
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