Airtac BSAI Locking Clamp Cylinder BSAI32X900S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI32X900S is a genuine double-acting ISO 15552 cylinder with a Ø32mm bore, 900mm 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
- Stroke900 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 BSAI32X900S
The AirTAC BSAI32X900-S is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released clamp-lock mechanism. A defining trait of this series is the ability to hold the load securely at any position along the 900mm stroke, providing a static holding force of 600 N. Because the bore is 32mm, the cylinder thrust reaches 563 N at 0.7 MPa. It is crucial to understand that holding force and thrust are distinct quantities; you must size the clamp's 600 N holding capacity against your static load, not the 563 N pneumatic thrust.
This unit includes a -S magnet for precise position sensing with AirTAC CMSE reed and DMSE solid-state switches. The enclasp mechanism requires a third G1/8 port to release the grip, and it operates on a balanced 0.15-0.7 MPa air supply. Furthermore, the variable air cushion only decelerates the piston near stroke ends; the mechanical clamp is the sole device responsible for maintaining the hold.
Airtac BSAI Locking Clamp Cylinder BSAI32X900S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI32X900S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø32 mm |
| Stroke | 900 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 BSAI32X900S Is Used
Vertical Z-Axis Holding
Prevents gravity-driven drops on vertical lifts by clamping the 12mm rod at any point in the 900mm travel, securing the load without relying on continuous air pressure.
Emergency Power Loss Hold
Spring-applied mechanism instantly engages the 600 N grip upon air loss, safely freezing the piston wherever it stopped along the extended stroke.
Machining Position Lock
Locks a workpiece or fixture firmly in place for inspection or light machining tasks, ensuring no pneumatic pressure fluctuations cause unwanted rod drift.
Is the Airtac BSAI Locking Clamp Cylinder BSAI32X900S the Right Clamp-Lock?
Selecting this non-standard 900mm stroke requires careful attention to side-load management. Because the stroke exceeds the 32mm bore's 700mm standard maximum, the 12mm carbon steel rod and M10x1.25 thread will need external guidance to prevent binding over such a long unsupported distance. If your application requires less holding capacity, stepping down is not an option below 32mm, but if you need more grip, the 40mm bore offers 900 N of holding force alongside 879 N of thrust at 0.7 MPa.
Choose this BSAI model over a SAIL cylinder when you need to lock at any intermediate point rather than just at the stroke end. For replacement, match the 32mm bore, 900mm stroke, PT ported cylinder, and the single-rod mounting set (Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, TCM2). Remember that the clamp locks only after the rod has stopped moving—it cannot brake a moving load—and unlocking requires balanced pressures to prevent the rod from jumping abruptly.
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 BSAI32X900S FAQ
The BSAI32X900-S provides a static holding force of 600 N. This bidirectional clamp locks the rod at any position along the 900mm stroke, but it only engages after the cylinder has stopped moving; it is not a braking device for a moving rod.
The clamp is spring-applied and air-released via a separate G1/8 enclasp port. To prevent the rod from jumping abruptly, the air pressures on both sides of the piston must be balanced and the cylinder stopped before applying unlock pressure.
Related AirTAC Lock & Standard Cylinders
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