Airtac BSAI Locking Clamp Cylinder BSAI32X225S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI32X225S is a genuine double-acting ISO 15552 cylinder with a Ø32mm bore, 225mm 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
- Stroke225 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 BSAI32X225S
The AirTAC BSAI32X225-S is a double-acting ISO 15552 profile cylinder equipped with a built-in clamp-lock mechanism. Unlike a plain SAI cylinder, this unit features a spring-applied, air-released enclasp gripper that locks the 12 mm carbon steel piston rod at ANY position along its 225 mm travel. It provides a documented static holding force of 600 N, operating entirely independently from the cylinder's standard thrust, which is 402 N push and 345 N pull at 0.5 MPa. Buyers must size the holding force against the static load, not the thrust, because the clamp and pneumatic thrust are two separate quantities.
The clamp requires a third G1/8 enclasp port alongside the 1/8 PT cylinder ports, and it unlocks only when air pressure is balanced across the piston. The integrated variable air cushion decelerates the piston near stroke ends, but the cushion is never the holding device; the clamp secures the load. This -S variant includes a magnet for precise position sensing with AirTAC CMSE reed or DMSE solid-state switches.
Airtac BSAI Locking Clamp Cylinder BSAI32X225S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI32X225S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø32 mm |
| Stroke | 225 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 BSAI32X225S Is Used
Vertical Axis Hold
Prevents gravity-driven drops on vertical strokes by clamping the rod securely at any intermediate position during a power loss.
Machining Position Lock
Secures a workpiece at a precise intermediate stroke location for machining or inspection without relying on continuous air pressure.
Emergency Stop Hold
Holds the load safely in place wherever the cylinder stopped during an emergency stop, provided the rod was stationary before clamping.
Is the Airtac BSAI Locking Clamp Cylinder BSAI32X225S the Right Clamp-Lock?
Choose this 32 mm bore if your application requires holding a load mid-stroke, a capability where BSAI beats the stroke-end-only SAIL lock. If your load exceeds the 600 N holding force, step up to the 40 mm bore, which offers 528 N pull thrust at 0.5 MPa and a 900 N clamp. If you only need to hold at the stroke end, a plain SAI cylinder suffices. The 12 mm rod with an M10x1.25 thread handles moderate side loads well, but for any stroke over 300 mm, an external guide is recommended.
Replacement setup requires PT port threads, a 1/8 cylinder port, and the G1/8 enclasp port. Mounting options include Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, or TCM2. Remember the clamp locks only after the rod stops; it cannot brake a moving rod. Safety-critical applications need an additional independent safety measure, 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 BSAI32X225S FAQ
The clamp-lock provides a static holding force of 600 N. It locks the rod bidirectionally at any position along the stroke, but it only engages after the cylinder has stopped moving and cannot brake a moving rod.
The clamp is spring-applied and air-released via a third G1/8 enclasp port. To prevent the rod from jumping abruptly, the air pressures on both sides of the piston must be balanced before unlocking, and the cylinder must be stopped.
Related AirTAC Lock & Standard Cylinders
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