Airtac BSAI Locking Clamp Cylinder BSAI100X100S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI100X100S is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 100mm 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
- Stroke100 mm
- Cylinder portG1/2
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAI Locking Clamp Cylinder BSAI100X100S
The AirTAC BSAI100X100-S is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released clamp-lock. It provides a robust static holding force of 5500 N, gripping the piston rod securely at any position along its 100 mm travel. The integrated -S magnet enables precise position sensing with AirTAC CMSE reed and DMSE solid-state switches. Because it is a profile cylinder with an extruded aluminum barrel, it offers a compact, modern footprint while remaining dimensionally interchangeable per ISO 15552.
It is vital to distinguish holding force from thrust: the 5500 N clamp rating is the static load capacity of the brake, entirely separate from the cylinder thrust, which reaches 5497 N at 0.7 MPa. The clamp operates via a third G1/8 enclasp port and requires a balanced-pressure unlock to prevent the rod from jumping abruptly upon release. Furthermore, the variable air cushions only decelerate the piston near stroke ends; the clamp itself is the device that actually holds the load.
Airtac BSAI Locking Clamp Cylinder BSAI100X100S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI100X100S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 100 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 BSAI100X100S Is Used
Vertical Load Holding
Prevents gravity-driven drops on vertical axes by clamping the rod at any height with 5500 N of holding force during a power or air loss event.
Machining Position Lock
Secures a workpiece or fixture at an exact intermediate stroke position to resist cutting forces without relying on live air pressure.
Mid-Stroke Safety Stop
Holds the load safely anywhere in the travel range for inspection or emergency stops, functioning independently of the cushions.
Is the Airtac BSAI Locking Clamp Cylinder BSAI100X100S the Right Clamp-Lock?
Step down to a 80 mm bore if your application requires less thrust (2513 N push at 0.5 MPa) and a lower 3600 N holding capacity, or step up to a 125 mm bore for 6136 N thrust and 8600 N holding force. Choose this BSAI model over a SAIL cylinder when you need to lock the load at an intermediate point rather than solely at the stroke end. A plain SAI cylinder suffices if no drop-prevention or mid-stroke holding is required.
Remember that the clamp locks only after the rod has stopped; it cannot brake a moving load, so human-safety applications need an independent secondary measure. To replace this unit, match the single-rod configuration, 100 mm bore, 100 mm stroke, PT port threads, and the -S magnet. Mounting options include Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2. The M20x1.5 rod thread provides excellent rigidity for side loads, though external guidance is recommended for long strokes.
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 BSAI100X100S FAQ
It delivers a static holding force of 5500 N. The bidirectional clamp locks the rod at any position along the stroke, but only after the cylinder has stopped moving; it is not a dynamic brake.
The lock is released by applying air to the G1/8 enclasp port, but only after the pressures on both sides of the piston are balanced. Releasing without balanced pressure can cause the rod to jump abruptly.
Related AirTAC Lock & Standard Cylinders
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