Airtac BSAID Clamp Cylinder BSAID80X25
The AirTAC Airtac BSAID Clamp Cylinder BSAID80X25 is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 25mm stroke and a spring-applied, air-released clamp-lock that holds the rod at ANY position along its travel — with a static holding force of 3600 N.
- BoreØ80 mm
- Stroke25 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID80X25
The AirTAC BSAID80X25 is a double-acting ISO 15552 profile cylinder featuring a double-rod design and a spring-applied, air-released clamp-lock. It secures the load at any position along its 25 mm stroke, delivering a static holding force of 3600 N. Because it is a double-rod unit, the thrust is equal in both directions at 2268 N (0.5 MPa), and the extending rod from the rear provides dual-side guidance, anti-rotation, or a mounting point for a counterweight and position flag.
Remember that the 3600 N clamp holding force is a distinct quantity from the cylinder's 2268 N thrust; you must size the holding capacity against your static load, not the pneumatic push. The clamp operates via a dedicated G1/8 enclasp port and requires 0.15-0.7 MPa to release. Note that the variable air cushion only decelerates the piston near stroke end, while the clamp itself performs the actual holding.
Airtac BSAID Clamp Cylinder BSAID80X25 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID80X25 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 25 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G3/8 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 3600 N |
| Enclasp / unlock port | G1/8 |
| Operating pressure | 0.15 – 0.7 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC BSAI datasheet (ISO 15552). Operating pressure is 0.15–0.7 MPa (lower than a plain SAI). Port options: PT / G.
How the Clamp-Lock Holds
static holding force (Ø80 mm)
A spring-applied gripper clamps the rod and holds the load at any position in the stroke — not just at the stroke end (that is a SAIL) — and it is bidirectional: it holds whether the rod was extending or retracting.
Theoretical Output Force (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa (max) | 3519 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (3600 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID80X25 Is Used
Vertical Load Holding
Locks a heavy vertical workpiece at any point in the 25 mm travel, preventing gravity drops during air loss.
Machining Position Lock
Holds a dual-sided fixture rigidly with 3600 N for precise milling or drilling without drift.
Power Failure Safety
The spring-applied clamp engages instantly anywhere in the stroke during an outage to secure the mechanism.
Is the Airtac BSAID Clamp Cylinder BSAID80X25 the Right Clamp-Lock?
Choose this 80 mm bore if your application demands 2268 N of force both ways alongside a robust 3600 N hold. If your load is lighter, stepping down to a 63 mm bore offers 1402 N pull and a 2200 N hold. If you only need to hold at stroke ends, a SAIL cylinder suffices, but choose this BSAID to lock anywhere mid-stroke. For simple transfer without holding, a plain SAID is adequate.
The clamp locks only after the rod has stopped; it cannot brake a moving rod. Unlocking requires balanced air pressures on both sides, or the rod may jump abruptly. For safety-critical loads, add an independent external measure. This PT-port model uses a 25 mm rod with an M20x1.5 thread, supporting high side loads. It accepts Basic, FA, LB, TC, TCM1, and TCM2 mounts (omitting FB/CA/CB/CR). As no magnet is specified, it will not support CMSE or DMSE sensors.
Quick checklist
- ✓ Hold needed at any position?
- ✓ Or stroke-end only → use SAIL
- ✓ Holding force ≥ your load
- ✓ Balanced-pressure unlock circuit
- ✓ Extra safety measure for people
Airtac BSAID Clamp Cylinder BSAID80X25 FAQ
The clamp-lock provides a static holding force of 3600 N. It locks at any position along the 25 mm stroke, but it only engages after the rod has stopped moving; it is not a braking device.
The clamp releases via a G1/8 port when air pressure is balanced on both sides. Releasing without balance causes the rod to jump. The double rod provides equal force both ways and allows mounting a guide or flag on the rear.
Related AirTAC Lock & Standard Cylinders
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