Airtac BSAI Locking Clamp Cylinder BSAI32X125
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI32X125 is a genuine double-acting ISO 15552 cylinder with a Ø32mm bore, 125mm 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
- Stroke125 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 BSAI32X125
The AirTAC BSAI32X125 is a double-acting ISO 15552 profile cylinder featuring 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 125 mm stroke. This bidirectional enclasp provides a static holding force of 600 N. Operating within a 0.15 to 0.7 MPa range, the cylinder generates 402 N of push thrust and 345 N of pull thrust at 0.5 MPa.
It is vital to distinguish between the 600 N static holding force and the cylinder thrust; the clamp only holds stationary loads and cannot brake a moving rod. The clamp operates via a separate G1/8 enclasp port, independent of the 1/8 PT cylinder ports. Furthermore, the variable air cushions at the stroke ends only decelerate the piston to prevent impact damage—they do not hold the load. The clamp locks only after the rod has completely stopped.
Airtac BSAI Locking Clamp Cylinder BSAI32X125 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI32X125 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 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 BSAI32X125 Is Used
Vertical Axis Holding
Secures a 32 mm bore vertical payload at any point in the 125 mm travel, preventing gravity-driven drops during air loss with 600 N of holding force.
Emergency Stop Safety
Provides a bidirectional clamping brake to hold a stopped load safely in place upon sudden power or air pressure loss, though an external measure is needed for human safety.
Inspection Positioning
Locks a workpiece firmly at a specific mid-stroke coordinate for machining or inspection, ensuring zero unwanted piston drift during the process.
Is the Airtac BSAI Locking Clamp Cylinder BSAI32X125 the Right Clamp-Lock?
Choose this 32 mm bore clamp-lock cylinder when an application requires position holding mid-stroke, a capability that distinguishes it from a SAIL model which only locks at stroke ends. If your process only needs end-of-stroke holding or standard actuation, a plain SAI cylinder is sufficient. If higher holding capacity is needed, stepping up to a 40 mm bore provides 900 N of holding force and 628 N of thrust at 0.5 MPa. Conversely, the 32 mm bore is ideal for lighter loads where 600 N of clamping is adequate.
For safe operation, the clamp locks after the cylinder stops and must be released by balancing the air pressures on both sides of the piston; otherwise, the rod may move abruptly. Safety-critical applications require an independent external safety measure. This standard carbon steel rod model without a magnet uses PT ports. It accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mountings. If position sensing is later required, an -S magnet version is needed to pair with AirTAC CMSE reed or DMSE electronic sensors.
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 BSAI32X125 FAQ
The BSAI32X125 provides a static holding force of 600 N. This bidirectional clamp locks the rod at any position along the stroke, but it only holds a stationary load and cannot brake a moving rod.
The clamp uses a spring-applied, air-released mechanism via a separate G1/8 port. To prevent the rod from jumping, the air pressures on both sides of the piston must be balanced before unlocking, ensuring the cylinder has completely stopped.
Related AirTAC Lock & Standard Cylinders
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