Airtac BSAI Locking Clamp Cylinder BSAI100X150S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI100X150S is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 150mm 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 5500 N.
- BoreØ100 mm
- Stroke150 mm
- Cylinder portG1/2
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAI Locking Clamp Cylinder BSAI100X150S
The AirTAC BSAI100X150-S is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released clamp-lock. It secures the carbon steel piston rod at any position along its 150 mm travel, delivering a static holding force of 5500 N. Because it includes a -S magnet, it supports CMSE reed and DMSE solid-state sensors for precise position feedback. Operating pressure spans 0.15-0.7 MPa, yielding 3927 N push thrust at 0.5 MPa.
Crucially, the 5500 N holding force is a distinct metric from the cylinder's thrust; you must size the clamp against the static load, not the motive force. The lock operates bidirectionally but engages only after the rod stops, meaning it cannot brake a moving load. Additionally, the variable air cushion at stroke ends only decelerates the piston, while the actual load holding is handled entirely by the clamp mechanism via its dedicated G1/8 enclasp port.
Airtac BSAI Locking Clamp Cylinder BSAI100X150S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI100X150S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 150 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G1/2 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 5500 N |
| Enclasp / unlock port | G1/8 |
| Operating pressure | 0.15 – 0.7 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Max stroke | Up to 1000 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 (Ø100 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa (max) | 5498 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (5500 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI100X150S Is Used
Vertical Load Holding
Secures heavy vertical stages at any point in the travel, preventing gravity-driven drops during air pressure loss.
Machining Position Lock
Holds a workpiece rigidly at a custom mid-stroke machining point, absorbing cutting forces without relying on live air pressure.
Emergency Safety Hold
Acts as a fail-safe clamp that engages instantly upon power or air loss, locking the load exactly where it stopped.
Is the Airtac BSAI Locking Clamp Cylinder BSAI100X150S the Right Clamp-Lock?
Select this 100 mm bore when an application requires substantial mid-stroke holding, as the 5500 N clamp capacity supports heavy vertical or suspended loads. If less force is needed, stepping down to an 80 mm bore provides 2513 N thrust and 3600 N holding force. Choose this BSAI model over a SAIL cylinder when you need to lock at any position, rather than just at stroke ends. For simple motion without holding, a plain SAI cylinder suffices.
This replacement match features a single rod, 100 mm bore, 150 mm stroke, PT tapered ports, and a 1/2 cylinder port. It accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. The M20x1.5 rod thread and 25 mm rod diameter handle high side loads. Always unlock the clamp with balanced piston pressures to prevent abrupt rod movement, and add independent safety measures for human-safety-critical holds.
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 BSAI100X150S FAQ
The clamp-lock provides a static holding force of 5500 N. It engages via spring pressure to hold the rod securely at any position along the stroke, independent of the cylinder's thrust.
The lock engages only after the cylinder has stopped, so it cannot brake a moving rod. To unlock it safely, air pressure must be balanced on both sides of the piston via the G1/8 enclasp port, preventing abrupt rod jumps. Safety-critical applications require an independent backup measure.
Related AirTAC Lock & Standard Cylinders
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