Airtac BSAI Locking Clamp Cylinder BSAI100X75S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI100X75S is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 75mm 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
- Stroke75 mm
- Cylinder portG1/2
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM20×1.5
- 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 BSAI100X75S
The AirTAC BSAI100X75-S is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released clamp-lock mechanism. It delivers a practical thrust of 3927 N at 0.5 MPa (5497 N at 0.7 MPa) and features a robust 25 mm carbon steel rod with an M20x1.5 thread. Crucially, the integrated enclasp gripper provides a static holding force of 5500 N, clamping the rod securely at ANY position along its 75 mm travel. You must size the holding capacity against your static load, as this 5500 N clamp force is a distinct quantity separate from the cylinder's thrust.
This bidirectional lock engages only after the piston has stopped, meaning it cannot brake a moving rod. The lock releases via a dedicated G1/8 enclasp port, requiring balanced air pressure on both sides of the piston to prevent abrupt rod movement upon release. The variable air cushions at both ends serve strictly to decelerate the piston near stroke limits, while the clamp itself is what truly holds the load. Equipped with a magnet (-S), it supports precise position sensing via AirTAC CMSE reed and DMSE electronic solid-state switches.
Airtac BSAI Locking Clamp Cylinder BSAI100X75S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI100X75S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 75 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 BSAI100X75S Is Used
Vertical Load Holding
Secures heavy vertical loads at any intermediate height during a process cycle, preventing gravity-driven drops if air pressure is lost.
Power Failure Safety
Spring-applied clamp immediately grips the 25 mm rod upon loss of air, holding the workpiece safely in place mid-stroke during an emergency shutdown.
Machining Position Lock
Locks a part rigidly at a specific non-end stroke coordinate for high-force machining or inspection operations, ensuring zero unwanted rod deflection.
Is the Airtac BSAI Locking Clamp Cylinder BSAI100X75S the Right Clamp-Lock?
Choose this 100 mm bore model when a mid-to-heavy load requires intermediate-stop holding along a short 75 mm travel. If 3927 N thrust or 5500 N holding is excessive, stepping down to a 80 mm bore yields 2268 N pull thrust and a 3600 N clamp hold; conversely, a 125 mm bore offers 5734 N thrust and 8600 N hold. Select this BSAI over a SAIL model when you need the rod gripped anywhere in the stroke rather than solely at the end. If no intermediate locking is required, a plain SAI cylinder suffices.
For replacements, verify the single-rod configuration, 100 mm bore, 75 mm stroke, PT tapered port threads, and the correct mounting set (Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, TCM2). The substantial 25 mm rod and M20x1.5 thread provide excellent side-load resilience. Always remember the clamp locks only after the cylinder stops and requires balanced pressure to unlock safely; for human-safety-critical applications, install an additional independent safety measure.
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 BSAI100X75S FAQ
The spring-applied clamp-lock provides a static holding force of 5500 N. It is bidirectional and can lock the rod securely at ANY position along the 75 mm stroke, not just at the stroke ends.
The clamp locks only AFTER the cylinder has stopped; it cannot brake a moving rod. To unlock safely, air pressure must be balanced on both sides of the piston via the G1/8 enclasp port, otherwise the rod may jump abruptly. Safety-critical loads require an additional independent safety measure.
Related AirTAC Lock & Standard Cylinders
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