Airtac BSED Clamping Double Acting Cylinder BSED40X75
The AirTAC Airtac BSED Clamping Double Acting Cylinder BSED40X75 combines a double-rod ISO 15552 cylinder — a Ø16mm rod out BOTH ends for equal force both directions — with an integrated spring-applied, air-released ROD LOCK that holds up to 900 N in either direction if air is lost. Ø40mm bore, 75mm stroke, PT1/4 ports, G1/8 lock-release.
- BoreØ40 mm
- Stroke75 mm
- Static holding force900 N
- ConfigurationDouble rod + lock
- Cylinder portPT1/4
- 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 BSED40X75
The AirTAC BSED40X75 is a double-acting, double-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. Because the annulus area is identical on both sides, it delivers an equal drive force of 528 N each way at 0.5 MPa and 739 N at 0.7 MPa. A rod exits both ends, allowing the rear extension to mount a flag or cam while resisting rotational torque.
The fail-safe collet lock provides a 900 N static holding force with no live air required. If pressure drops or an E-stop trips, the rod is securely clamped at position. This unit has no magnet (no -S suffix), meaning position sensing via CMSE or DMSE sensors is not supported on this specific SKU.
Double Rod + 900 N Rod Lock (Ø40mm)
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 BSED40X75 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 BSED40X75 Technical Specifications
| Model | Airtac BSED Clamping Double Acting Cylinder BSED40X75 |
|---|---|
| Series | BSED ISO 15552 double-rod rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Static holding force | 900 N |
| Cylinder port | PT1/4 |
| 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 800 mm |
Specifications follow the official AirTAC BSED datasheet. Rod thread M12×1.25 both ends. Mounting (BSED): Basic, LB, FA, TC. Port options: PT (standard) / G (BSPP); lock-release port is G1/8.
Theoretical Output Force (Ø40mm)
| Pressure | Force (both directions) |
|---|---|
| 0.5 MPa | 528 N |
| 0.7 MPa (max) | 739 N |
| Max drive (@0.7 MPa) | 75 kgf |
A rod exits both ends, so force is equal on extend and retract. Drive force is separate from the 900 N static lock holding force. Size with a safety margin.
Model Code: Airtac BSED Clamping Double Acting Cylinder BSED40X75
| B | Rod-lock cylinder prefix. |
|---|---|
| SED | ISO 15552 double-rod double-acting body. |
| 40 | Bore size in mm. |
| ×75 | 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 BSED40X75 Is Used
Vertical Lift Stops
Holds a 900 N vertical load securely in place during air loss, while the equal 739 N both-way drive ensures consistent up and down transfer speeds.
Symmetric Transfer Arms
Drives a dual-ended tooling arm with identical 528 N force in both directions at 0.5 MPa, locking the 75 mm stroke precisely during station dwells.
Mid-Stroke Machining Clamps
Provides a stable 900 N static clamp for light machining operations, utilizing the rear rod for external cam tracking without rotational drift.
Is the Airtac BSED Clamping Double Acting Cylinder BSED40X75 the Right Cylinder?
Choose this 40 mm bore when an application requires both symmetric bi-directional force and mid-stroke fail-safe holding up to 900 N. If your load is lighter, the adjacent 32 mm bore offers 345 N at 0.5 MPa and a 600 N hold; if you need more power, stepping up to the 50 mm bore yields 825 N at 0.5 MPa and a 1400 N hold. Always verify your load stays within the 900 N static 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 s for the transition. This is a static holding device, not a dynamic brake. For exact replacements, match the 75 mm stroke, PT1/4 cylinder port, and your required mounting (Basic, LB, FA, or TC).
Quick checklist
- ✓ Need both symmetric force AND fail-safe hold?
- ✓ Load to hold ≤ 900 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 BSED40X75 FAQ
The integrated spring-applied collet engages instantly, providing a 900 N static holding force to keep the rod at its current position. It is a fail-safe lock, not a dynamic brake, so it must only be engaged after the rod has stopped moving.
The double-rod design yields equal drive force both ways: 528 N at 0.5 MPa and 739 N at 0.7 MPa, with a maximum drive of 75 kgf. This is separate from the 900 N static holding force of the rod lock.
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Standard models are processed and dispatched in 3-5 business days.
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