Airtac BSED Clamping Double Acting Cylinder BSED125X600S
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED125X600S 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, 600mm stroke, PT1/2 ports, G1/8 lock-release.
- BoreØ125 mm
- Stroke600 mm
- Static holding force8600 N
- ConfigurationDouble rod + lock
- Cylinder portPT1/2
- Lock-release portG1/8
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac BSED Clamping Double Acting Cylinder BSED125X600S
The AirTAC BSED125X600S is a double-acting, double-rod ISO 15552 profile cylinder integrating a spring-applied, air-released rod lock. A rod exits both ends, yielding equal force in both directions—about 5734 N each way at 0.5 MPa. The integrated collet lock provides a bidirectional static holding force of 8600 N without requiring live air.
This extruded aluminum body avoids external tie rods while maintaining the ISO 15552 mounting interface. The lock engages via a dedicated G1/8 release port and operates safely within a 0.15-0.7 MPa pressure range. The S suffix indicates a mounted magnet for CMSE reed or DMSE electronic sensors.
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 BSED125X600S 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 BSED125X600S Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED125X600S |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø125 mm |
| Stroke | 600 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 BSED125X600S
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 125 | Bore size in mm. |
| ×600 | 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 BSED125X600S Is Used
Heavy Press Ejection
Ejects large stampings with 8028 N of equal both-way force, while the 8600 N rod lock secures the heavy tooling mid-stroke during press downtime.
Pallet Accumulation Stop
Halts inbound pallets on a high-throughput line; the fail-safe collet holds the 8600 N load firmly if compressed air drops unexpectedly.
Vertical Lift Holding
Raises and lowers heavy platens with symmetric double-rod speed, relying on the spring-applied lock to prevent catastrophic drops on E-stop.
Is the Airtac BSED Clamping Double Acting Cylinder BSED125X600S the Right Cylinder?
Select this 125 mm bore when an application demands both-way symmetric thrust of 8028 N at 0.7 MPa alongside a robust 8600 N fail-safe hold. If your load requires less force, the neighboring 100 mm bore provides 3681 N of drive force at 0.5 MPa and a 5500 N holding capacity. As the largest standard size, stepping up requires a custom solution.
Verify your load does not exceed the 8600 N static holding limit. 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. Because the stroke is 600 mm, ensure external guide rails support side loads to prevent rod binding. Replacement matches require the 125 mm bore, 600 mm stroke, PT1/2 port, and mounting choice among Basic, LB, FA, or TC.
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 BSED125X600S FAQ
The double-rod drive force is equal both ways: 5734 N at 0.5 MPa and 8028 N at 0.7 MPa, with a maximum drive equivalent of 819 kgf. The separate static holding force of the spring-applied rod lock is 8600 N.
The lock is spring-applied and air-released, meaning it clamps the 32 mm rod automatically if air pressure is lost, providing up to 8600 N of static hold. It is not a dynamic brake; engage it only after the rod stops, and release it only when cylinder pressure is balanced.
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