
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI32X80S is a genuine double-acting ISO 15552 cylinder with a Ø32mm bore, 80mm 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 600 N.
The AirTAC BSAI32X80-S is a double-acting ISO 15552 profile cylinder equipped with a built-in clamp-lock mechanism. A spring-applied, air-released gripper clamps the 12 mm carbon steel piston rod to hold the load securely at any position along its 80 mm travel. It delivers a static holding force of 600 N, while the cylinder itself generates 402 N of push thrust at 0.5 MPa. It is crucial to distinguish holding force from thrust: you must size the clamp's 600 N rating against your static load, not the cylinder's thrust.
This model includes a -S magnet for precise position sensing with AirTAC CMSE (reed) and DMSE (electronic) switches fitted into the side sensor grooves. The clamp mechanism relies on a third G1/8 enclasp port, separate from the PT 1/8 cylinder ports, to release the rod. Remember that the adjustable air cushions only decelerate the piston near stroke ends; the mechanical clamp is what actually holds the load in place.
| Model | Airtac BSAI Locking Clamp Cylinder BSAI32X80S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø32 mm |
| Stroke | 80 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G1/8 |
| Rod thread | M10×1.25 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 600 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 700 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.
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.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa (max) | 563 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (600 N) is separate from cylinder thrust. Size with a margin.
Locks a lifted load at any intermediate height along the 80 mm stroke to prevent gravity-driven drops during operation.
The spring-applied clamp engages automatically on air loss, freezing the 12 mm rod exactly where it stopped mid-stroke.
Secures a workpiece firmly in a specific clamped position for machining or inspection without maintaining live air pressure.
Choose this 32 mm bore when an application requires intermediate position holding that a SAIL stroke-end lock cannot provide. If your load exceeds the 600 N holding capacity, stepping up to the 40 mm bore increases the clamp rating to 900 N and the thrust to 628 N. Conversely, if you only need to hold the load at the fully extended or retracted end, a plain SAI cylinder without the clamp head is more economical.
For safe operation, the clamp locks only after the rod has stopped; it cannot brake a moving load. You must balance the air pressure on both sides of the piston before unlocking, or the rod may jump abruptly. Safety-critical applications require an independent external holding measure. This replacement single-rod cylinder uses PT tapered ports, accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, or TCM2 mounts, and requires the -S magnet option for CMSE/DMSE sensors.
Quick checklist
The BSAI32X80-S provides a static holding force of 600 N. The spring-applied clamp locks the rod at any position along the 80 mm stroke, but it only engages after the cylinder has stopped moving.
The clamp is released via a third G1/8 enclasp port. You must balance the air pressure on both sides of the piston before unlocking; otherwise, the rod can move abruptly. An independent safety measure is required for human safety applications.
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