Airtac BSAI Locking Clamp Cylinder BSAI32X75S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI32X75S is a genuine double-acting ISO 15552 cylinder with a Ø32mm bore, 75mm 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.
- BoreØ32 mm
- Stroke75 mm
- Cylinder portG1/8
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM10×1.25
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac BSAI Locking Clamp Cylinder BSAI32X75S
The AirTAC BSAI32X75-S is a double-acting ISO 15552 profile cylinder with a built-in clamp-lock that holds the piston rod at any position along its 75 mm travel. Unlike standard air cushions that only decelerate the piston near stroke ends, this spring-applied, air-released enclasp mechanism physically grips the 12 mm carbon steel rod to hold a static load of 600 N. You must size the holding force against your load, not the cylinder thrust, because the 563 N push thrust at 0.7 MPa is a separate quantity that moves the rod, while the clamp only retains it.
This model includes a -S magnet for position sensing with CMSE reed or DMSE electronic solid-state switches. The clamp operates via a separate G1/8 enclasp port, requiring 0.15-0.7 MPa to release the grip. The clamp locks only after the cylinder has stopped, meaning it cannot brake a moving rod. Furthermore, it must be unlocked with balanced air pressures on both sides of the piston, or the rod can jump abruptly upon release.
Airtac BSAI Locking Clamp Cylinder BSAI32X75S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI32X75S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø32 mm |
| Stroke | 75 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.
How the Clamp-Lock Holds
static holding force (Ø32 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 (Ø32mm)
| 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.
Where the Airtac BSAI Locking Clamp Cylinder BSAI32X75S Is Used
Vertical Axis Hold
Prevents a vertically lifted workpiece from dropping when air pressure is removed, holding it securely at any height within the 75 mm travel.
Emergency Power-Loss Hold
Engages the spring-applied clamp instantly upon loss of air supply to freeze the rod in its current position, preventing uncontrolled movements.
Machining Position Lock
Locks the 12 mm rod rigidly during a secondary machining or inspection process, ensuring the workpiece does not shift under tooling vibration.
Is the Airtac BSAI Locking Clamp Cylinder BSAI32X75S the Right Clamp-Lock?
Choose this 32 mm bore if your application requires 402 N push thrust at 0.5 MPa and a 600 N static hold anywhere in the 75 mm stroke. If you need more holding capacity, step up to the 40 mm bore, which provides 528 N pull thrust and a 900 N holding force. The BSAI is chosen over a SAIL model when you need to lock at any intermediate position, rather than just at the stroke ends. If you only need end-of-stroke holding, a plain SAI cylinder suffices.
As a replacement, match the single-rod configuration, 32 mm bore, 75 mm stroke, and PT tapered port threads. The 1/8 cylinder ports and G1/8 enclasp port must be plumbed correctly. Mounting options include Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2. For safety-critical loads, add an independent mechanical measure, as the clamp is not a moving-rod brake and requires balanced pressure to unlock safely.
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 BSAI Locking Clamp Cylinder BSAI32X75S FAQ
The clamp-lock provides a static holding force of 600 N. It is a spring-applied, air-released mechanism that grips the rod to hold the load at any position, which is separate from the 563 N pneumatic thrust used to move the cylinder.
The clamp locks only after the cylinder has stopped and cannot brake a moving rod. To unlock it safely, you must apply 0.15-0.7 MPa to the G1/8 enclasp port only after the air pressures on both sides of the piston are balanced, otherwise the rod can move abruptly.
Related AirTAC Lock & Standard Cylinders
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