
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED50X160 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 1400 N in either direction if air is lost. Ø50mm bore, 160mm stroke, PT1/4 ports, G1/8 lock-release.
The AirTAC BSED50X160 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 drive force of 825 N each way at 0.5 MPa and 1154 N at 0.7 MPa. The extruded aluminum barrel has no external tie rods, and the rear rod can mount a cam or tooling while resisting rotation.
The fail-safe collet lock provides a bidirectional static holding force of 1400 N with no live air required. If pressure drops or an E-stop trips, the mechanism clamps the rod to maintain position. This unit uses a PT1/4 cylinder port, a dedicated G1/8 release port, and a 30 mm adjustable air cushion at both ends. This specific SKU lacks the -S magnet option, so it does not support CMSE or DMSE position 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 BSED50X160 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 BSED50X160 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 160 mm |
| Static holding force | 1400 N |
| Cylinder port | PT1/4 |
| 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 | 825 N |
| 0.7 MPa (max) | 1155 N |
| Max drive (@0.7 MPa) | 118 kgf |
A rod exits both ends, so force is equal on extend and retract. Drive force is separate from the 1400 N static lock holding force. Size with a safety margin.
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 50 | Bore size in mm. |
| ×160 | 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 1400 N vertical lift payload in place during air loss, while the 1154 N both-way drive moves the load through the work cycle.
Rear rod end carries a secondary tool or flag, utilizing equal 825 N force at 0.5 MPa for identical push and pull operations.
Locks a pallet securely at an intermediate station without live air, engaging the collet only after the conveyor fully stops.
Select this 50 mm bore model when an application requires symmetric both-way force and a 1400 N fail-safe hold. Verify your static load is at or below 1400 N. If you need less force, the 40 mm bore offers 528 N at 0.5 MPa and a 900 N hold. If you need more, step up to the 63 mm bore, which provides 1402 N at 0.5 MPa and a 2200 N hold.
Operating pressure is capped at 0.7 MPa. 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. When replacing, match the 160 mm stroke, PT1/4 port thread, and Basic, LB, FA, or TC mounting. For this 160 mm stroke, standard guide rails are recommended to manage side loads and preserve bearing life.
Quick checklist
The drive force is equal in both directions: 825 N at 0.5 MPa and 1154 N at 0.7 MPa, yielding a max drive of 118 kgf. The fail-safe static holding force of the rod lock is 1400 N, which is entirely separate from the drive force.
The spring-applied collet clamps the rod instantly upon air loss, holding the load up to 1400 N without live air. To release safely, balance pressure on both piston sides, then apply air to the dedicated G1/8 release port, allowing at least 0.5 seconds for the collet to disengage.
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