Airtac BSE Clamp Standard Cylinder BSE40X500
The AirTAC Airtac BSE Clamp Standard Cylinder BSE40X500 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, 500mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ40 mm
- Stroke500 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 BSE40X500
The AirTAC BSE40X500 is a double-acting ISO 15552 profile cylinder featuring an integrated spring-applied, air-released rod lock. This fail-safe collet mechanism provides a 900 N bidirectional static holding force with zero live air, securing suspended loads instantly if pressure drops. The operating pressure ceiling is 0.7 MPa.
Unlike a dynamic brake, this lock engages only after the piston rod fully stops. A separate G1/8 release port unlocks the collet when balanced pressure is applied, requiring at least 0.5 seconds before motion. The 500 mm stroke utilizes adjustable air cushions at both ends, but the collet lock provides the true holding power.
Rod Lock — 900 N Static Holding (Ø40mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE40X500 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 BSE40X500 Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE40X500 |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 500 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 BSE40X500
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 40 | Bore size in mm. |
| ×500 | 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 BSE40X500 Is Used
Elevator Platform Hold
Maintains a 900 N static hold on vertical lifting platforms, preventing gravity drift if air supply is lost during an E-stop.
Drill Spindle Clamp
Locks a drill head spindle securely in place during machining cycles, ensuring the 16 mm rod stays fixed without live air.
Pneumatic Gate Stop
Secures heavy access gates in the closed position, engaging its collet lock automatically upon air exhaustion to prevent movement.
Is the Airtac BSE Clamp Standard Cylinder BSE40X500 the Right Cylinder?
Verify your load stays under the 900 N holding force. If you need less holding, the 32 mm bore offers 402 N push at 0.5 MPa and a 600 N lock. For heavier loads, the 50 mm bore provides 982 N push at 0.5 MPa and a 1400 N lock. This SKU lacks a magnet, so position sensing is unavailable.
For a direct replacement, match the 40 mm bore, 500 mm stroke, PT1/4 cylinder port, and mounting style. At 500 mm, use guide rails to prevent side-load wear on the seals. SE mounting accessories fit this body except FTC.
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 BSE40X500 FAQ
The drive force is 628 N push and 528 N pull at 0.5 MPa, reaching 879 N push at 0.7 MPa (max 90 kgf). The separate static holding force of the rod lock is 900 N.
Balance pressure on both sides of the piston, then supply 0.15-0.7 MPa to the G1/8 release port. Wait at least 0.5 seconds for the collet to disengage before moving the rod.
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