Airtac BSAI Locking Clamp Cylinder BSAI32X400
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI32X400 is a genuine double-acting ISO 15552 cylinder with a Ø32mm bore, 400mm 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
- Stroke400 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 BSAI32X400
The AirTAC BSAI32X400 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 400mm travel, delivering a static holding force of 600 N. The base thrust is 402 N at 0.5 MPa, but remember that holding force and thrust are separate quantities: you must size the 600 N clamp capacity against your static load, not the cylinder push force.
This unit uses a 1/8 PT cylinder port and a separate G1/8 enclasp port to release the brake. The clamp locks only after the rod stops, so it cannot brake a moving load. Furthermore, it must be unlocked with balanced air pressures on both sides of the piston to prevent the rod from jumping abruptly. Note that the variable air cushion only decelerates the piston near stroke end; the mechanical clamp is what actually holds the load.
Airtac BSAI Locking Clamp Cylinder BSAI32X400 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI32X400 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø32 mm |
| Stroke | 400 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 BSAI32X400 Is Used
Vertical Lift Hold
Maintains a 600 N vertical load securely at any intermediate height without relying on continuous air pressure.
Power Loss Safety
Spring-applied clamp engages instantly upon air loss to freeze the rod position safely mid-stroke.
Machining Positioning
Locks the workpiece rigidly in place during drilling or milling, preventing unwanted rod drift.
Is the Airtac BSAI Locking Clamp Cylinder BSAI32X400 the Right Clamp-Lock?
Choose this 32mm bore when a compact ISO 15552 footprint needs mid-stroke holding without live air pressure. If your static load exceeds the 600 N holding force, step up to the 40mm bore, which provides 900 N of clamp force and 628 N of thrust at 0.5 MPa. If you only need to hold a load at the stroke end, a plain SAIL cylinder suffices, but choose BSAI when you must enclasp the rod anywhere in the travel. For non-safety-critical applications, the clamp provides reliable positioning, but an independent safety measure is required if human safety depends on the hold.
This BSAI32X400 configuration features a single carbon steel rod, 400mm stroke, 1/8 PT cylinder ports, and a G1/8 unlock port. It supports Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mountings. Because the stroke is 400mm, an external guide is recommended to prevent excessive side loading on the 12mm rod. Sensors are not included; add an -S magnet for CMSE reed or DMSE electronic switches.
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 BSAI32X400 FAQ
The built-in clamp-lock provides a static holding force of 600 N. It engages via spring pressure to hold the rod securely at any position along the 400mm stroke, operating bidirectionally whether the rod was extending or retracting.
The clamp locks only after the cylinder has stopped and cannot brake a moving rod. To release it safely, you must apply balanced air pressure to both sides of the piston via the G1/8 enclasp port; otherwise, the rod may move abruptly upon unlocking.
Related AirTAC Lock & Standard Cylinders
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