Airtac BSE Clamp Standard Cylinder BSE50X80S
The AirTAC Airtac BSE Clamp Standard Cylinder BSE50X80S 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 Ø20mm rod and holds up to 1400 N in either direction — no drift. Ø50mm bore, 80mm stroke, PT1/4 cylinder ports, G1/8 lock-release port.
- BoreØ50 mm
- Stroke80 mm
- Static holding force1400 N
- Lock typeSpring-lock / air-release
- Cylinder portPT1/4
- Lock-release portG1/8
About the Airtac BSE Clamp Standard Cylinder BSE50X80S
The AirTAC BSE50X80S is a double-acting ISO 15552 profile cylinder with an integrated spring-applied, air-released rod lock. A collet clamps the Ø20 mm rod to deliver a bidirectional static holding force of 1400 N without requiring live air. This fail-safe mechanism ensures suspended loads remain fixed exactly where they stopped if air pressure drops or an E-stop is triggered.
Operating pressure is capped at 0.7 MPa, and unlocking requires 0.15-0.7 MPa supplied to a separate G1/8 release port. The -S magnet option allows position detection using CMSE reed or DMSE electronic sensors. Because it uses the standard SE body, all SE mounting accessories fit this cylinder perfectly except the FTC model.
Rod Lock — 1400 N Static Holding (Ø50mm)
A spring clamps the collet onto the rod, so the Airtac BSE Clamp Standard Cylinder BSE50X80S 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 BSE50X80S Technical Specifications
| Model | Airtac BSE Clamp Standard Cylinder BSE50X80S |
|---|---|
| Series | BSE ISO 15552 rod-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 80 mm |
| Static holding force | 1400 N |
| Cylinder port | PT1/4 |
| Lock-release port | G1/8 |
| Rod thread | M16×1.5 |
|---|---|
| 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 1000 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa (max) | 1374 N | — |
| Max drive (@0.7 MPa) | 140 kgf | |
Drive force is separate from the 1400 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 BSE50X80S
| B | Rod-lock cylinder prefix. |
|---|---|
| SE | ISO 15552 standard double-acting body. |
| 50 | Bore size in mm. |
| ×80 | 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 BSE50X80S Is Used
Vertical Lift Hold
Secures an 80 mm vertical lift stage against gravity drops with a 1400 N fail-safe hold the moment shop air is lost.
Tool Clamp Lock
Maintains machining fixture clamping force on a workpiece during an E-stop, preventing tool crashes from drift.
Pallet Stop Gate
Holds a raised pallet stop gate firmly in place under impact, keeping the lane isolated without relying on live air.
Is the Airtac BSE Clamp Standard Cylinder BSE50X80S the Right Cylinder?
Verify your suspended load stays at or below the 1400 N holding capacity. If your load is lighter, the 40 mm bore offers a 600 N hold and 628 N push at 0.5 MPa; if heavier, step up to the 63 mm bore for a 2200 N hold and 1559 N push at 0.5 MPa. Remember the lock is not a dynamic brake: engage it only after the rod fully stops, and release it only when piston pressures are balanced, allowing at least 0.5 s before moving. To match this unit exactly for replacement, confirm the 50 mm bore, 80 mm stroke, PT1/4 cylinder port, and the -S magnet option.
Quick checklist
- ✓ Load to hold ≤ 1400 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 BSE50X80S FAQ
The drive force is 982 N push and 825 N pull at 0.5 MPa, reaching 1374 N push at 0.7 MPa (max 140 kgf). The static holding force of the rod lock is 1400 N, which is completely separate from the drive force and requires no live air to maintain.
A spring applies a collet to the rod, so if air is lost or exhausted, the rod is held bidirectionally in its stopped position. To release the lock safely, balance pressures on both sides of the piston and supply 0.15-0.7 MPa to the separate G1/8 release port, waiting at least 0.5 s before moving.
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