Airtac BSED Clamping Double Acting Cylinder BSED63X125
The AirTAC BSED Clamping Double Acting Cylinder BSED63X125 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, 125mm stroke, PT3/8 ports, G1/8 lock-release.
- BoreØ63 mm
- Stroke125 mm
- Static holding force2200 N
- ConfigurationDouble rod + lock
- Cylinder portPT3/8
- 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 BSED63X125
The AirTAC BSED63X125 is a double-acting, double-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. A rod exits both ends, providing equal force and speed in both directions—delivering 1402 N each way at 0.5 MPa and 1962 N at 0.7 MPa. The rear rod is ideal for mounting flags or cams while actively resisting rotation.
This fail-safe collet lock provides a 2200 N static holding force without requiring live air. If pressure drops or an E-stop trips, the rod is securely clamped at position. It engages via a dedicated G1/8 release port and operates within a 0.15-0.7 MPa pressure range. Note that this specific SKU lacks a magnet, so it does not support CMSE or DMSE position sensors.
Double Rod + 2200 N Rod Lock (Ø63mm)
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 BSED63X125 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 BSED63X125 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED63X125 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 125 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.
Theoretical Output Force (Ø63mm)
| 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.
Model Code: Airtac BSED Clamping Double Acting Cylinder BSED63X125
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 63 | Bore size in mm. |
| ×125 | 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 BSED63X125 Is Used
Vertical Lift Gates
Holds a 2200 N vertical gate securely in place during air loss, while the double-rod design delivers 1962 N of equal lifting and lowering force.
Pallet Indexing Stop
Provides hard stopping for heavy pallets with symmetric 1402 N force at 0.5 MPa, locking instantly if the main air supply drops.
Dual-Tool Machining
Mounts a secondary tool or cam on the rear rod for synchronized operations, utilizing the anti-rotation properties of the double-rod build.
Is the Airtac BSED Clamping Double Acting Cylinder BSED63X125 the Right Cylinder?
Select this 63 mm bore when an application demands both-way symmetric drive (200 kgf max at 0.7 MPa) and a robust 2200 N static hold. If your load requires less force, the adjacent 50 mm bore offers 825 N at 0.5 MPa and a 1400 N hold; if you need more, step up to the 80 mm bore, which provides 2268 N at 0.5 MPa and a 3600 N hold. Always verify your load is under 2200 N.
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. This is a static holding device, not a dynamic brake. When replacing a unit, match the 125 mm stroke, PT3/8 cylinder port, M16x1.5 rod thread, and mounting choice (Basic, LB, FA, or TC).
Quick checklist
- ✓ Need both symmetric force AND fail-safe hold?
- ✓ Load to hold ≤ 2200 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 BSED63X125 FAQ
The integrated spring-applied collet immediately clamps the rod, providing a 2200 N static holding force to keep the load in place without live air. It is a fail-safe lock, not a dynamic brake, so it must only be engaged after the rod stops moving.
The double-rod design provides equal force both ways: 1402 N at 0.5 MPa and 1962 N at 0.7 MPa, with a maximum drive force of 200 kgf. This drive force is separate from the 2200 N static holding force of the lock.
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