
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED63X250S 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, 250mm stroke, PT3/8 ports, G1/8 lock-release.
The AirTAC BSED63X250S is a double-acting, double-rod ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. A rod exits both ends, yielding equal thrust in both directions at about 1402 N each way at 0.5 MPa. The collet lock provides a bidirectional static holding force of 2200 N.
Because the lock engages mechanically without live air, the rod is securely clamped during pressure loss or E-stop trips. The -S magnet enables position feedback via CMSE reed or DMSE electronic sensors, while the rear rod resists rotation and can mount a flag or cam.
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 BSED63X250S 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 BSED63X250S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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. |
| ×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.
Holds a 2200N vertical load securely mid-stroke without live air, while the 1962N both-way drive raises and lowers the platform smoothly.
Uses the equal both-way force for machining pressure, while the rear rod provides anti-rotation stability for a position flag.
Clamps the diverter arm instantly upon E-stop activation, securely freezing the 63mm bore position during emergency halts.
Select this 63mm bore when an application demands symmetric 1962 N drive force at 0.7 MPa alongside a 2200N fail-safe hold. If your load requires less force, the 50mm bore offers 825 N at 0.5 MPa and a 1400 N hold; stepping up to the 80mm bore provides 2268 N at 0.5 MPa and a 3600 N hold.
Always verify the load to hold is at or below 2200 N. Engage the lock only after the rod stops, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 seconds. For replacement, match the 63mm bore, 250mm stroke, PT3/8 port, and -S magnet. At 250mm stroke, use guide rails to manage side loads.
Quick checklist
The integrated spring-applied collet clamps the rod immediately, providing a 2200N static holding force to prevent movement. It is a fail-safe hold, not a dynamic brake, so it must engage only after the rod stops.
The double-rod design provides equal drive force both ways: 1402N at 0.5 MPa, 1962N at 0.7 MPa, and a maximum drive of 200 kgf. The fail-safe rod lock adds a bidirectional static holding force of 2200N.
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