Airtac BSED Clamping Double Acting Cylinder BSED125X160
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED125X160 combines a double-rod ISO 15552 cylinder — a Ø32mm rod out BOTH ends for equal force both directions — with an integrated spring-applied, air-released ROD LOCK that holds up to 8600 N in either direction if air is lost. Ø125mm bore, 160mm stroke, PT1/2 ports, G1/8 lock-release.
- BoreØ125 mm
- Stroke160 mm
- Static holding force8600 N
- ConfigurationDouble rod + lock
- Cylinder portPT1/2
- Lock-release portG1/8
About the Airtac BSED Clamping Double Acting Cylinder BSED125X160
The AirTAC BSED125X160 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 5734 N each way at 0.5 MPa and 8028 N at 0.7 MPa. The collet lock delivers a massive 8600 N static holding force, securing the load with zero live air.
This 125 mm bore unit features a 32 mm rod with an M27x2 thread, PT1/2 cylinder ports, and a dedicated G1/8 release port. The extruded aluminum ISO 15552 body eliminates external tie rods, and this specific SKU ships without a magnet, meaning it does not support CMSE or DMSE position sensing.
Double Rod + 8600 N Rod Lock (Ø125mm)
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 BSED125X160 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 BSED125X160 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED125X160 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø125 mm |
| Stroke | 160 mm |
| Static holding force | 8600 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 – 500 mm/s |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC BSED datasheet. Rod thread M27×2 both ends. Mounting (BSED): Basic, LB, FA, TC. Port options: PT (standard) / G (BSPP); lock-release port is G1/8.
Theoretical Output Force (Ø125mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 5734 N |
| 0.7 MPa (max) | 8027 N |
| Max drive (@0.7 MPa) | 819 kgf |
A rod exits both ends, so force is equal on extend and retract. Drive force is separate from the 8600 N static lock holding force. Size with a safety margin.
Model Code: Airtac BSED Clamping Double Acting Cylinder BSED125X160
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 125 | 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.
Where the Airtac BSED Clamping Double Acting Cylinder BSED125X160 Is Used
Heavy Vertical Lifts
Secures 8600 N vertical loads instantly on air loss, while the double-rod design ensures equal 8028 N lifting and lowering force at 0.7 MPa.
Large Press Tooling
Holds heavy press fixtures rigidly during machining stops, utilizing the 32 mm twin rods to mount cam or flag actuators on the rear end.
Symmetric Push-Pull Jigs
Drives large workholding jigs with identical 5734 N force in both directions at 0.5 MPa, locking the 160 mm stroke securely during cycle transitions.
Is the Airtac BSED Clamping Double Acting Cylinder BSED125X160 the Right Cylinder?
Choose this 125 mm bore model when your application demands both-way symmetric thrust up to 819 kgf and a fail-safe hold of 8600 N. If your load requires less force, the neighboring 100 mm bore provides 3681 N at 0.5 MPa with a 5500 N holding capacity. As the largest standard bore, there is no larger step up, so loads exceeding 8600 N require external mechanical braking. Engage the lock only after the rod stops, and release it only when both piston sides are pressure-balanced with at least 0.5 s transition time.
Quick checklist
- ✓ Need both symmetric force AND fail-safe hold?
- ✓ Load to hold ≤ 8600 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 BSED125X160 FAQ
The spring-applied collet immediately clamps the 32 mm rod, delivering a bidirectional static holding force of 8600 N with no live air required. It is a fail-safe holding lock, not a dynamic brake, so it must only engage after the rod has completely stopped moving.
The double-rod design provides equal drive force both ways: 5734 N at 0.5 MPa and 8028 N at 0.7 MPa, with a maximum drive capacity of 819 kgf. The integrated fail-safe rod lock adds a separate 8600 N static holding force.
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Standard models usually ship in 3-4 days.
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