Airtac BSE Clamp Standard Cylinder BSE40X50
The AirTAC Airtac BSE Clamp Standard Cylinder BSE40X50 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, 50mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ40 mm
- Stroke50 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 BSE40X50
The AirTAC BSE40X50 is a double-acting ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. It delivers a 900 N bidirectional static holding force, ensuring suspended loads remain fixed if air pressure drops. Operating pressure is capped at 0.7 MPa.
This 40 mm bore unit features a 16 mm rod and PT1/4 cylinder ports, while the lock mechanism utilizes a dedicated G1/8 release port. Because this SKU lacks a magnet, it does not support position sensing. The lock clamps the rod only after motion stops, providing true fail-safe drift protection rather than dynamic braking.
Rod Lock — 900 N Static Holding (Ø40mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE40X50 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 BSE40X50 Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE40X50 |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 50 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 BSE40X50
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 40 | Bore size in mm. |
| ×50 | 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 BSE40X50 Is Used
Pneumatic Vertical Lift
Holds a 90 kgf vertical workhead mid-stroke. The 900 N fail-safe collet prevents gravity drift if the main air supply abruptly exhausts.
Tool Clamp Station
Secures a machined part during secondary milling. The spring-applied lock maintains 900 N of clamping grip during an E-stop.
Pallet Stop Gate
Acts as a mid-route halt for assembly pallets. The rod lock engages after the conveyor stops, keeping the barrier rigid with no live air.
Is the Airtac BSE Clamp Standard Cylinder BSE40X50 the Right Cylinder?
Verify your load requires 900 N or less of static holding force. If you need less drive power, the 32 mm bore offers 402 N push at 0.5 MPa and 600 N holding force. For heavier suspension, the 50 mm bore provides 982 N push at 0.5 MPa and 1400 N holding force. Always balance piston pressures and allow at least 0.5 seconds before moving after releasing the lock. Replacement units must match the 50 mm stroke, PT thread, and basic mounting. SE mounting accessories fit this ISO 15552 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 BSE40X50 FAQ
The spring-applied collet engages automatically upon air loss, delivering a 900 N static holding force. The drive forces are 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.
Apply 0.15-0.7 MPa to the separate G1/8 release port. You must balance pressures on both sides of the piston first, then allow at least 0.5 seconds for full release before commanding cylinder motion.
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