Airtac BSAI Locking Clamp Cylinder BSAI100X150
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI100X150 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 BSAI100X150
The AirTAC BSAI100X150 is a double-acting ISO 15552 profile cylinder featuring a built-in spring-applied, air-released clamp-lock. It secures the piston rod at any position along its 150 mm travel, delivering a static holding force of 5500 N. Operating within a 0.15-0.7 MPa range, the cylinder generates a practical maximum thrust of 5497 N. You must size the holding force against your static load, as the 5500 N clamp capacity is a distinct quantity separate from the 5497 N thrust used for moving the mass.
This enclasp mechanism is bidirectional and operates via a dedicated G1/8 unlock port, which is separate from the 1/2 cylinder ports. The clamp engages only after the rod has stopped, meaning it cannot brake a moving load. Furthermore, the variable air cushion at the stroke ends only decelerates the piston; it does not hold the load. Release requires balanced air pressure on both piston sides to prevent the rod from jumping abruptly.
Airtac BSAI Locking Clamp Cylinder BSAI100X150 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI100X150 |
|---|---|
| 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 BSAI100X150 Is Used
Vertical Axis Position Hold
Maintains vertical loads securely at any point in the 150 mm travel, preventing gravity-driven drops during operation.
Power Loss Safety
The spring-applied clamp engages automatically upon air loss, locking the 25 mm rod instantly to halt workpiece movement.
Machining & Inspection Hold
Freezes the piston mid-stroke to provide a rigid, vibration-resistant platform for intermediate processing steps.
Is the Airtac BSAI Locking Clamp Cylinder BSAI100X150 the Right Clamp-Lock?
Choose this 100 mm bore when a 63 mm bore (1402 N thrust, 2200 N holding force) is insufficient to safely secure your static load. Select the BSAI clamp-lock over a SAIL model when you need to hold the load at any intermediate stroke position, rather than just at the stroke end. If position holding is entirely unnecessary, a plain SAI cylinder is the simpler choice. The 25 mm carbon steel rod and M20x1.5 thread provide robust side-load resistance, but any stroke exceeding 300 mm still requires an external guide.
As a direct replacement match, ensure your setup uses a single-rod configuration, 100 mm bore, 150 mm stroke, PT tapered ports, and an appropriate mounting set (Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, or TCM2). This standard configuration lacks a magnet, so position sensing via CMSE or DMSE switches is not supported without modification. Always verify that the cylinder has fully stopped before applying the clamp, and add an independent safety measure 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 BSAI100X150 FAQ
The BSAI100X150 provides a static holding force of 5500 N. The clamp locks the rod at any position along the stroke, but it only engages after the cylinder has stopped moving and cannot be used as a braking device.
The clamp is released by supplying air to the dedicated 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. Safety-critical applications require an additional independent safety measure.
Related AirTAC Lock & Standard Cylinders
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