
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED63X350S 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, 350mm stroke, PT3/8 ports, G1/8 lock-release.
The AirTAC BSED63X350S 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 1402 N each way at 0.5 MPa. The rear rod is ideal for mounting flags, cams, or secondary tooling while resisting rotational torque.
This fail-safe collet mechanism provides a 2200 N static holding force with no live air required. If pressure drops or an E-stop trips, the rod is securely clamped at position. It features a PT3/8 cylinder port, a separate G1/8 lock-release port, and a -S magnet for CMSE or DMSE sensors.
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 BSED63X350S 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 BSED63X350S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 350 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. |
| ×350 | 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 safely during air loss. The 1402 N both-way drive raises and lowers the platform with equal speed and force.
The double-rod design supports tooling on both ends for alternating operations. The fail-safe collet locks the 350 mm stroke firmly during part changes.
Uses equal push and pull force to index pallets left and right. The rod lock clamps the diverter arm securely between cycles to prevent drift.
Select this 63 mm bore when an application requires both symmetric drive force and mid-stroke holding. Verify your static load is 2200 N or less. If you need less force, the 50 mm bore offers 825 N at 0.5 MPa and 1400 N holding. If you need more, step up to the 80 mm bore for 2268 N at 0.5 MPa and 3600 N holding. At 350 mm stroke, use external guide rails to prevent side-load wear on the seals and rod lock collet.
Always 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 s for the collet to retract. To match this unit exactly, specify the 63 mm bore, 350 mm stroke, PT3/8 threads, and the -S magnet option.
Quick checklist
The drive force is equal in both directions: 1402 N at 0.5 MPa and 1962 N at 0.7 MPa, with a maximum drive force of 200 kgf. The separate static holding force of the spring-applied rod lock is 2200 N, which engages without live air.
The lock is a spring-applied, air-released collet, not a dynamic brake. You must engage it only after the rod stops moving. To release, apply air to the G1/8 release port only after both piston sides are pressure-balanced, allowing at least 0.5 seconds for the collet to fully retract before cycling.
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