Airtac BSE Clamp Standard Cylinder BSE40X800S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE40X800S 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, 800mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ40 mm
- Stroke800 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 BSE40X800S
The AirTAC BSE40X800S is a double-acting, single-rod ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. It delivers a 900 N bidirectional static holding force with no live air, ensuring suspended loads stay put if pressure drops. Operating pressure is capped at 0.7 MPa, and the lock uses a dedicated G1/8 release port.
This 40 mm bore, 800 mm stroke variant includes a magnetic piston for CMSE or DMSE sensors. The collet lock engages only after the piston stops and requires balanced pressures with at least 0.5 s for full release before motion. It uses adjustable air cushions at both ends, but the fail-safe hold comes entirely from the mechanical collet, not the cushion.
Rod Lock — 900 N Static Holding (Ø40mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE40X800S 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 BSE40X800S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE40X800S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 800 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 BSE40X800S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 40 | Bore size in mm. |
| ×800 | 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 BSE40X800S Is Used
Z-Axis Elevator Hold
Secures a 40 kg vertical lift carriage on a packaging machine. The 900 N fail-safe collet locks instantly on air loss, preventing a drop, while the 628 N drive force at 0.5 MPa handles the lift.
Pneumatic Tooling Clamp
Maintains clamping force on a CNC machining fixture during an E-stop. The spring-applied lock sustains the 900 N hold without live air, keeping the part fixed while hydraulics reset.
Pallet Stop Gate
Acts as a raised stop gate on a 800 mm stroke conveyor line. The 879 N push force at 0.7 MPa extends the barrier, and the lock holds it rigid against impacting pallets.
Is the Airtac BSE Clamp Standard Cylinder BSE40X800S the Right Cylinder?
Verify your load requires 900 N or less of static holding force. If you need less holding and drive force, step down to the 32 mm bore, which provides 402 N push at 0.5 MPa and a 600 N hold. If your load exceeds 900 N, step up to the 50 mm bore, offering 982 N push at 0.5 MPa and a 1400 N hold. Always engage the lock only after the rod stops, and release it only when cylinder pressures are balanced.
At 800 mm of stroke, side loading is a major risk. Use a guide rail to prevent rod bending and premature seal wear. This BSE40X800S configuration features a PT1/4 cylinder port, an M12x1.25 rod thread, and a magnetic piston. SE mounting accessories fit this ISO 15552 body perfectly, except for FTC brackets.
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 BSE40X800S 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 max drive of 90 kgf. The separate static holding force of the spring-applied rod lock is 900 N.
The lock is spring-applied and fail-safe. If air is lost, a collet clamps the rod instantly, providing 900 N of bidirectional holding force. It is not a dynamic brake; engage it only after the rod stops.
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