
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED63X25S combines a double-rod ISO 15552 cylinder — a Ø20mm rod out BOTH ends for equal force both directions — with an integrated spring-applied, air-released ROD LOCK that holds up to 2200 N in either direction if air is lost. Ø63mm bore, 25mm stroke, PT3/8 ports, G1/8 lock-release.
The AirTAC BSED63X25S is a double-acting, double-rod ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. A rod exits both ends, providing equal drive force of 1402 N each way at 0.5 MPa and a maximum of 1962 N at 0.7 MPa. The extruded aluminum barrel has no external tie rods, ensuring a clean ISO 15552 mounting interface.
The fail-safe collet delivers a 2200 N static holding force with no live air, clamping the Ø20 mm rod bidirectionally if pressure drops. A separate G1/8 release port controls the lock, and the -S magnet supports CMSE reed and DMSE electronic sensors for position tracking.
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 BSED63X25S 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.
| Model | Airtac BSED Clamping Double Acting Cylinder BSED63X25S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 mm |
| Static holding force | 2200 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 M16×1.5 both ends. Mounting (BSED): Basic, LB, FA, TC. Port options: PT (standard) / G (BSPP); lock-release port is G1/8.
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 1402 N |
| 0.7 MPa (max) | 1962 N |
| Max drive (@0.7 MPa) | 200 kgf |
A rod exits both ends, so force is equal on extend and retract. Drive force is separate from the 2200 N static lock holding force. Size with a safety margin.
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 63 | 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.
Holds a 2200 N vertical load securely during an E-stop or air loss, while the 1962 N equal both-way force drives the lift up and down reliably.
Uses the rear rod for cam tracking while the front rod pushes and pulls an 1402 N load at 0.5 MPa with identical speed in both directions.
Clamps the Ø20 mm rod at a precise 25 mm interval for machining, preventing drift without relying on the air cushion for static hold.
Select this 63 mm bore when an application needs symmetric thrust and fail-safe holding up to 2200 N. If your load requires less force, the 50 mm bore offers 825 N at 0.5 MPa and 1400 N holding. If you need more, the 80 mm bore provides 2268 N at 0.5 MPa and 3600 N holding. Always verify the load is below 2200 N and engage the lock only after the rod stops, allowing at least 0.5 s for the pressure-balanced release. For replacement, match the 25 mm stroke, PT3/8 port, and mounting option.
Quick checklist
The drive force is equal both ways at 1402 N @0.5 MPa and 1962 N @0.7 MPa, with a max drive of 200 kgf. The static holding force of the spring-applied rod lock is 2200 N.
If air is lost, the spring-applied collet clamps the rod instantly, providing a 2200 N static hold. To release, both piston sides must be pressure-balanced and the separate G1/8 port must be pressurized, allowing at least 0.5 s for unlock.
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