Airtac BSE Clamp Standard Cylinder BSE40X350
The AirTAC Airtac BSE Clamp Standard Cylinder BSE40X350 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, 350mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ40 mm
- Stroke350 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 BSE40X350
The AirTAC BSE40X350 is a double-acting, single-rod ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. It delivers a 900 N bidirectional static holding force with no live air, ensuring suspended loads remain safely fixed if pressure drops or an E-stop trips. Operating pressure is capped at 0.7 MPa.
This 40 mm bore unit uses a PT1/4 cylinder port and a separate G1/8 lock-release port to free the collet. Because the stroke is 350 mm, utilize SE-compatible mounting accessories (except FTC) and external guides to prevent side-load shaft damage. This SKU lacks a magnet, so position sensing is unavailable.
Rod Lock — 900 N Static Holding (Ø40mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE40X350 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 BSE40X350 Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE40X350 |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 350 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 BSE40X350
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 40 | Bore size in mm. |
| ×350 | 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 BSE40X350 Is Used
Vertical Lift Gates
Holds a 350 mm vertical lift gate securely in place with 900 N of fail-safe force during an E-stop, preventing uncontrolled descent.
Tooling Clamp
Maintains clamping pressure on a machined part if shop air is lost, utilizing the spring-applied collet to prevent workpiece movement.
Pallet Stopper
Locks a conveyor diverter arm at a precise 350 mm extension, ensuring the arm stays put and resists dynamic impacts from passing pallets.
Is the Airtac BSE Clamp Standard Cylinder BSE40X350 the Right Cylinder?
Verify your load requires less than the 900 N static holding force. If you need less drive, the 32 mm bore offers 402 N push at 0.5 MPa and 600 N hold. If you need more, the 50 mm bore provides 982 N push at 0.5 MPa and 1400 N hold. The lock is spring-applied, so engage it only after the rod fully stops. Release it only when piston pressures are balanced, allowing at least 0.5 s before moving. To replace, match the 40 mm bore, 350 mm stroke, PT thread, and mounting choice.
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 BSE40X350 FAQ
The lock is spring-applied and air-released, meaning a loss of air pressure causes the collet to clamp the rod instantly. It provides a 900 N bidirectional static hold, but it is not a dynamic brake; engage it only after the rod has stopped.
The drive force is 628 N push and 528 N pull at 0.5 MPa, and 879 N push at 0.7 MPa (max 90 kgf). The separate static holding force of the rod lock is 900 N.
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