Airtac BSED Clamping Double Acting Cylinder BSED125X600
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED125X600 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 BSED125X600
The AirTAC BSED125X600 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 in both directions at about 5734 N each way at 0.5 MPa. The extruded aluminum body has no external tie rods, ensuring clean integration.
This specific SKU lacks a magnet, meaning no CMSE or DMSE position sensors can be fitted. The bidirectional collet lock provides a robust 8600 N static holding force with zero live air required. The lock engages via a dedicated G1/8 release port, completely separate from the adjustable air cushions at both ends.
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 BSED125X600 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 BSED125X600 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED125X600 |
|---|---|
| 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 BSED125X600
| 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 BSED125X600 Is Used
Heavy Machining Center
Ideal for heavy machine tools requiring 8028 N equal both-way force to move large fixtures, while the 8600 N lock holds the mass securely during aggressive cutting cycles.
Large Press Handling
Perfect for heavy press operations where the rear rod supports a cam flag for timing, and the fail-safe collet prevents the 600mm stroke from creeping during air loss.
Automated Welding Station
Suitable for large welding manipulators needing identical push and pull thrust, utilizing the spring-applied lock to freeze the heavy arm instantly upon E-stop activation.
Is the Airtac BSED Clamping Double Acting Cylinder BSED125X600 the Right Cylinder?
Select this 125mm bore model when a heavy load demands high symmetric force and fail-safe holding. Verify your static load does not exceed the 8600 N holding capacity. If sizing down, the 100mm bore provides 3681 N drive force at 0.5 MPa and 5500 N holding force. As the largest standard bore, stepping up requires a custom solution. For the 600mm stroke, use a guide rail to prevent side-loading damage to the rod and collet.
Always engage the lock only after the rod completely stops moving. To release safely, ensure both piston sides are pressure-balanced and allow at least 0.5 seconds before moving. When replacing, match the 125mm bore, 600mm stroke, PT1/2 cylinder port, and your specific mounting choice from 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 BSED125X600 FAQ
The 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 static holding force of the integrated rod lock is 8600 N, which holds the load with no live air.
The lock is spring-applied and air-released via a G1/8 port. If air is lost, the collet clamps the rod immediately, providing fail-safe holding. To release, both piston sides must be pressure-balanced, and you must allow at least 0.5 seconds before commanding motion.
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Standard models are processed and dispatched in 3-5 business days.
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