Airtac BSE Clamp Standard Cylinder BSE40X75S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE40X75S is a genuine double-acting ISO 15552 cylinder with an integrated spring-applied, air-released ROD LOCK. If air is cut or an E-stop is hit, the collet clamps the Ø16mm rod and holds up to 900 N in either direction — no drift. Ø40mm bore, 75mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ40 mm
- Stroke75 mm
- Static holding force900 N
- Lock typeSpring-lock / air-release
- 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 BSE Clamp Standard Cylinder BSE40X75S
The AirTAC BSE40X75S is a 40mm bore, 75mm stroke ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. It delivers a bidirectional static holding force of 900 N with no live air required, ensuring suspended loads remain safely locked during pressure loss or E-stop events. Operating pressure is capped at 0.7 MPa.
This double-acting single-rod actuator features a separate G1/8 release port to disengage the clamping collet. The lock is a fail-safe holding device, not a dynamic brake; it must be engaged only after the rod stops and released only when piston pressures are balanced, allowing at least 0.5 seconds for full release before motion. The -S magnet option enables position sensing with CMSE reed or DMSE electronic sensors.
Rod Lock — 900 N Static Holding (Ø40mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE40X75S holds its position in both directions when air is lost, exhausted or an E-stop trips. Apply 0.15–0.7 MPa to the G1/8 release port to unlock. Engage the lock only after the rod has stopped (it is not a dynamic brake), and release only when the pressures on both sides of the piston are balanced. Allow at least 0.5 s for full release before moving.
Airtac BSE Clamp Standard Cylinder BSE40X75S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE40X75S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Static holding force | 900 N |
| Cylinder port | PT1/4 |
| Lock-release port | G1/8 |
| Rod thread | M12×1.25 |
|---|---|
| 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 |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 800 mm |
Specifications follow the official AirTAC BSE datasheet. The lock uses the SE standard body; SE mounting accessories fit BSE except FTC. Port options: PT (standard) / G (BSPP); lock-release port is G1/8.
Theoretical Output Force (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa (max) | 880 N | — |
| Max drive (@0.7 MPa) | 90 kgf | |
Drive force is separate from the 900 N static holding force of the lock. BSE operates up to 0.7 MPa. Size with a safety margin.
Model Code: Airtac BSE Clamp Standard Cylinder BSE40X75S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard 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 (BSE): Basic, LB, FA, FB, CA, CB, CR, TC (FTC is not available on BSE). Related: SE (no lock), BSED (double-rod rod lock). Sensors CMSE/DMSE fit magnetic BSE.
Where the Airtac BSE Clamp Standard Cylinder BSE40X75S Is Used
Vertical Pneumatic Lift
Holds a mid-stroke vertical lifting stage securely in place with 900 N of fail-safe force, preventing gravity drops if the air supply drops below 0.15 MPa.
Tooling Clamp Hold
Maintains clamping pressure on machined parts during an E-stop, keeping the 879 N drive force locked out until pressures balance and the G1/8 port releases the collet.
Pallet Stop Gate
Acts as a rigid stop gate for lightweight conveyor pallets, using the spring-applied collet to stay firmly positioned without consuming continuous air.
Is the Airtac BSE Clamp Standard Cylinder BSE40X75S the Right Cylinder?
Verify your load does not exceed the 900 N static holding force. If stepping down, the 32mm bore offers 402 N push at 0.5 MPa and a 600 N hold. If stepping up, the 50mm bore provides 982 N push at 0.5 MPa and a 1400 N hold. Always engage the lock only after the rod completely stops, and release it solely when pressures are balanced, allowing >=0.5 s before moving.
To match this actuator exactly, specify the 40mm bore, 75mm stroke, PT1/4 cylinder port, and the -S magnet option. SE-compatible mounting accessories fit this body perfectly, except for the FTC model. Because the 75mm stroke is under 300mm, external side-load guides are less critical here than on longer strokes, but always ensure axial load alignment.
Quick checklist
- ✓ Load to hold ≤ 900 N?
- ✓ Fail-safe hold on air loss / E-stop needed
- ✓ Lock engaged only when stopped
- ✓ G1/8 release-air line available
- ✓ Magnet (-S) for CMSE/DMSE sensors?
Installation & Safety Notes
- check Engage the lock only after the rod has stopped — not as 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 Add safety-rated controls for man-rated / overhead loads.
- check Use SE mounting accessories (FTC excepted).
Airtac BSE Clamp Standard Cylinder BSE40X75S FAQ
The spring-applied collet engages automatically to provide a 900 N static holding force in both directions if air is lost. The drive forces are 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, with a max drive of 90 kgf.
You must balance the air pressures on both sides of the piston first. Then supply 0.15-0.7 MPa to the separate G1/8 release port, wait at least 0.5 seconds for the collet to fully retract, and only then command cylinder motion.
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