Airtac BSED Clamping Double Acting Cylinder BSED125X200
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED125X200 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, 200mm stroke, PT1/2 ports, G1/8 lock-release.
- BoreØ125 mm
- Stroke200 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 BSED125X200
The AirTAC BSED125X200 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 provides a bidirectional static holding force of 8600 N with no live air required.
This 125 mm bore unit uses a PT1/2 cylinder port and a separate G1/8 lock-release port. It features a 32 mm rod, an M27x2 rod-end thread, and 40 mm adjustable air cushions at both ends. This SKU has no magnet, so CMSE or DMSE position sensors cannot be used.
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 BSED125X200 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 BSED125X200 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED125X200 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø125 mm |
| Stroke | 200 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 BSED125X200
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 125 | Bore size in mm. |
| ×200 | 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 BSED125X200 Is Used
Heavy Machining Clamps
Secures large metal castings during CNC machining. The 8600 N fail-safe lock holds the heavy workpiece if air pressure drops, while the 8028 N equal both-way drive ensures rigid, balanced clamping and release.
Pallet Stopper Arms
Halts heavy inbound pallets on a conveyor line. The double-rod design allows a rear flag cam to trigger arrival sensors, and the spring-applied collet locks the 125 mm rod instantly during an E-stop.
Vertical Lift Platforms
Raises and lowers heavy material trays with equal force in both directions. The 8600 N static holding force prevents gravitational drift when the system is idle, though safety-rated controls are recommended for man-rated overhead loads.
Is the Airtac BSED Clamping Double Acting Cylinder BSED125X200 the Right Cylinder?
Select this model when an application demands symmetric both-way force and a robust fail-safe hold up to 8600 N. If your load requires less holding or drive force, stepping down to the 100 mm bore yields 3681 N at 0.5 MPa and a 5500 N static hold. If you need more force, this 125 mm bore is the largest available, delivering a maximum drive of 819 kgf at 0.7 MPa. Always engage the lock only after the rod stops completely, and release it only when both piston sides are pressure-balanced, allowing at least 0.5 seconds. For exact replacement matching, verify the 200 mm stroke, PT1/2 port, and Basic/LB/FA/TC mounting choice.
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 BSED125X200 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 of 819 kgf. The integrated fail-safe rod lock provides a separate bidirectional static holding force of 8600 N with no live air.
The spring-applied collet clamps the rod automatically if air is lost or an E-stop trips, holding the load up to 8600 N. To release the lock safely, bring the cylinder to a complete stop, pressure-balance both piston sides, and apply air to the G1/8 release port for at least 0.5 seconds.
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