Airtac BSED Clamping Double Acting Cylinder BSED100X25
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED100X25 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 5500 N in either direction if air is lost. Ø100mm bore, 25mm stroke, PT1/2 ports, G1/8 lock-release.
- BoreØ100 mm
- Stroke25 mm
- Static holding force5500 N
- ConfigurationDouble rod + lock
- Cylinder portPT1/2
- Lock-release portG1/8
About the Airtac BSED Clamping Double Acting Cylinder BSED100X25
The AirTAC BSED100X25 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 3681 N each way at 0.5 MPa. This symmetric design is ideal for carrying rear-rod tooling or flags while resisting rotation.
The fail-safe collet lock provides a 5500 N static holding force without requiring live air. If pressure drops or an E-stop trips, the rod is securely clamped at position. This unit has no magnet (-S omitted), meaning no CMSE or DMSE position sensors can be fitted to this specific SKU.
Double Rod + 5500 N Rod Lock (Ø100mm)
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 BSED100X25 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 BSED100X25 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED100X25 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 25 mm |
| Static holding force | 5500 N |
| Cylinder port | PT1/2 |
| 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 (Ø100mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 3682 N |
| 0.7 MPa (max) | 5154 N |
| Max drive (@0.7 MPa) | 526 kgf |
A rod exits both ends, so force is equal on extend and retract. Drive force is separate from the 5500 N static lock holding force. Size with a safety margin.
Model Code: Airtac BSED Clamping Double Acting Cylinder BSED100X25
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 100 | 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 BSED100X25 Is Used
Heavy Machining Fixtures
Clamps parts with 5153 N of equal both-way force, while the 5500 N rod lock holds the workpiece securely during machining if air pressure is lost.
Overhead Z-Axis Lifts
Lifts vertical loads using symmetric double-rod thrust, relying on the fail-safe collet to prevent drops when air is removed, though safety-rated controls are advised for man-rated loads.
Pallet Stops
Halts heavy pallets on conveyors, using the rear rod for cam actuation while the lock maintains the stopped position without consuming live air.
Is the Airtac BSED Clamping Double Acting Cylinder BSED100X25 the Right Cylinder?
Select this 100 mm bore model when your application demands both symmetric thrust and static holding. Verify your load requires no more than 5500 N of holding force and 5153 N of drive force at 0.7 MPa. If you need less force, the 80 mm bore offers 2268 N of drive force at 0.5 MPa and a 3600 N hold. If you need more, the 125 mm bore provides 5734 N at 0.5 MPa and an 8600 N hold.
Engage the lock only after the rod completely stops, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 seconds for the transition. To replace this unit, match the 25 mm stroke, PT1/2 cylinder port, and your chosen mounting (Basic, LB, FA, or TC).
Quick checklist
- ✓ Need both symmetric force AND fail-safe hold?
- ✓ Load to hold ≤ 5500 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 BSED100X25 FAQ
The drive force is equal both ways at 3681 N at 0.5 MPa and 5153 N at 0.7 MPa (max 525 kgf). The static fail-safe holding force of the integrated rod lock is 5500 N. Operating pressure is capped at 0.7 MPa.
The spring-applied collet clamps the rod immediately upon air loss, holding the load up to 5500 N. To release, apply air to the G1/8 release port only after both cylinder sides are pressure-balanced, allowing at least 0.5 seconds for the collet to open.
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