Airtac BSE Clamp Standard Cylinder BSE40X450
The AirTAC Airtac BSE Clamp Standard Cylinder BSE40X450 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, 450mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ40 mm
- Stroke450 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 BSE40X450
The AirTAC BSE40X450 is a double-acting ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. It provides a 900 N bidirectional static holding force with no live air, ensuring suspended loads stay put if pressure drops or an E-stop trips. Operating pressure is capped at 0.7 MPa.
This unit uses a separate G1/8 release port to overcome the internal collet, which is fundamentally different from relying on the adjustable air cushions at both ends. Because this 450 mm stroke lacks the -S magnet option, it has no position sensing. You can use standard SE mounting accessories, except for FTC.
Rod Lock — 900 N Static Holding (Ø40mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE40X450 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 BSE40X450 Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE40X450 |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 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 BSE40X450
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 40 | Bore size in mm. |
| ×450 | 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 BSE40X450 Is Used
Packaging Machine Lift Gate
Holds a vertical lift gate securely mid-stroke with 900 N of fail-safe force, preventing a crash if the packaging line air supply drops suddenly.
Drill Press Quill Lock
Clamps the 16 mm rod on a machining drill head during an emergency stop, locking position instantly without relying on live air pressure.
Pallet Conveyor Diverter
Keeps a routing diverter arm fixed in place during E-stops. The spring-applied collet ensures the arm never drifts into the passing pallets.
Is the Airtac BSE Clamp Standard Cylinder BSE40X450 the Right Cylinder?
Verify your load does not exceed the 900 N static holding force. If you need less clamping, the adjacent BSE32 bore offers 402 N push at 0.5 MPa and 600 N hold. For heavier suspension, the BSE50 bore provides 982 N push at 0.5 MPa and 1400 N hold.
Always engage the lock only after the rod fully stops, and release it only when piston pressures are balanced, allowing at least 0.5 s before moving. At 450 mm stroke, use a guide to prevent side loads from damaging the rod and collet. Match replacement specs exactly: PT1/4 port, 16 mm rod, M12x1.25 thread, and your mounting code.
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 BSE40X450 FAQ
The drive force is 628 N push and 528 N pull at 0.5 MPa, 879 N push at 0.7 MPa, with a maximum drive of 90 kgf. The separate static holding force of the rod lock is 900 N.
The lock is spring-applied and fail-safe. If air is lost or exhausted, the collet clamps the rod immediately, providing 900 N of bidirectional holding force. You must supply 0.15-0.7 MPa to the G1/8 release port and wait 0.5 s to free it.
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