
The AirTAC Airtac BSAID Clamp Cylinder BSAID100X150S is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 150mm 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 5500 N.
The AirTAC BSAID100X150-S is a double-acting ISO 15552 profile cylinder featuring a rod extending from both ends and a built-in spring-applied, air-released clamp-lock. It grips the piston rod to hold loads securely at any position along the 150 mm stroke, delivering a static holding force of 5500 N. Because it is a double-rod unit, the thrust is equal in both directions at 3681 N (0.5 MPa), and the second rod allows you to mount a workpiece on one end and a guide, counterweight, or position flag on the other for dual-side anti-rotation guidance.
It is vital to distinguish this 5500 N holding force from the 3681 N thrust; the clamp sustains a static load, whereas thrust drives the motion. Furthermore, the variable air cushion at stroke ends only decelerates the piston, while the clamp is the true holding mechanism. Unlocking requires a third G1/8 enclasp port and balanced pressure on both sides, as the clamp engages only after the rod has completely stopped and cannot brake a moving load.
| Model | Airtac BSAID Clamp Cylinder BSAID100X150S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 150 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G1/2 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 5500 N |
| Enclasp / unlock port | G1/8 |
| Operating pressure | 0.15 – 0.7 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 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.
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 | 3927 N | 3682 N |
| 0.7 MPa (max) | 5498 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (5500 N) is separate from cylinder thrust. Size with a margin.
Maintains vertical payloads at any height along the stroke with 5500 N of holding force, preventing gravity-driven falls when air pressure is removed.
Freezes the double rod at an exact intermediate point for secure clamping, machining, or inspection processes without relying on end-stroke cushions.
The spring-applied clamp immediately grips the rod during a sudden air loss, locking the load in place mid-travel until pressure is restored.
Choose this 100 mm bore if your application requires substantial equal bidirectional thrust (3681 N at 0.5 MPa) alongside robust mid-stroke holding. If your load is lighter, stepping down to the 80 mm bore offers 2268 N pull thrust and a 3600 N hold; if you need more holding power, the 125 mm bore provides 5734 N thrust and an 8600 N hold. The BSAID100X150-S is specified over a plain SAID when unpowered load retention is mandatory, and it beats a SAIL end-lock cylinder because it clamps at any point, not just at stroke extremes.
For safe operation, remember the lock engages only after the cylinder stops, so human-safety applications need an independent backup measure. To release the clamp safely, balance the air pressure to prevent the rod from jumping abruptly. This carbon steel rod unit uses PT tapered ports (1/2 inch cylinder, G1/8 enclasp) and includes a -S magnet for CMSE reed or DMSE electronic sensors. The double-rod design omits the FB, CA, CB, and CR mounts, accepting Basic, FA, LB, TC, TCM1, and TCM2 brackets.
Quick checklist
The built-in clamp-lock provides a static holding force of 5500 N. It is bidirectional, meaning it securely holds the double rod in place regardless of whether the cylinder was extending or retracting before it stopped.
The lock only engages after the rod has stopped and cannot brake a moving load. To release it safely, you must apply air to the G1/8 enclasp port while ensuring the pressures on both sides of the piston are balanced; otherwise, the rod may jump abruptly.
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