
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI32X150 is a genuine double-acting ISO 15552 cylinder with a Ø32mm 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 600 N.
The AirTAC BSAI32X150 is a double-acting ISO 15552 profile cylinder featuring a built-in spring-applied, air-released clamp-lock. It secures the 12mm carbon steel rod at any position along its 150mm travel, providing a static holding force of 600 N. Operating at 0.15-0.7 MPa, it generates up to 563 N of thrust. Remember that holding force and thrust are distinct quantities; you must size the 600 N clamp capacity against your static load, not the cylinder thrust. The lock engages bidirectionally only after the piston stops.
This enclasp mechanism requires a third G1/8 unlock port alongside the 1/8 PT cylinder ports. Do not confuse the variable air cushions with the lock; cushions only decelerate the piston near stroke ends, while the clamp physically holds the load. Furthermore, pressure must be balanced across both sides of the piston before unlocking, or the rod may jump abruptly.
| Model | Airtac BSAI Locking Clamp Cylinder BSAI32X150 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø32 mm |
| Stroke | 150 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.
Prevents gravity-driven drops on vertical strokes by clamping the rod at any intermediate height during an air pressure loss.
Spring-applied clamping engages instantly without live pressure to freeze the piston safely mid-travel during emergency shutdowns.
Holds a workpiece firmly at a precise non-standard stroke position for secure machining or inspection without relying on thrust.
Select this 32mm bore model when an application demands intermediate position holding rather than just end-of-stroke stops. If your load requires less force, stepping down is not an option since 32mm is the smallest available bore, but if you need more holding power, the 40mm bore provides 900 N of holding force and 879 N of thrust at 0.7 MPa. Choose BSAI over a SAIL cylinder when you must secure a load mid-stroke; choose a plain SAI cylinder if you only need standard double-acting motion without any clamping.
For replacements, confirm you need a single-rod configuration with a 150mm stroke, PT port threads, and the BSAI mounting set (Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, TCM2). Because this unit lacks the -S magnet option, it cannot use CMSE reed or DMSE electronic sensors. Always ensure the cylinder has stopped and pressures are balanced before releasing the clamp, and add independent safety measures if human safety depends on the hold.
Quick checklist
The BSAI32X15 features a static holding force of 600 N. The spring-applied clamp locks the rod at any position bidirectionally, but only after the cylinder has stopped moving; it cannot brake a moving rod.
The clamp is released via a third G1/8 enclasp port, but only when air pressures on both sides of the piston are balanced. If pressure is unbalanced, the rod can jump abruptly upon unlocking.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.