Airtac BSAI Locking Clamp Cylinder BSAI100X80
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI100X80 is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 80mm 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
- Stroke80 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 BSAI100X80
The AirTAC BSAI100X80 is a double-acting ISO 15552 profile cylinder featuring a built-in clamp-lock that grips the 25 mm carbon steel rod to hold loads at any position along its 80 mm stroke. A spring-applied, air-released mechanism delivers a static holding force of 5500 N, operating independently from the cylinder's 5497 N thrust at 0.7 MPa. Buyers must size the holding force against the static load rather than the thrust, as these are two distinct quantities.
This enclasp mechanism requires a third G1/8 unlock port—separate from the 1/2 PT cylinder ports—and needs 0.15-0.7 MPa balanced pressure to release safely. The variable air cushion only decelerates the piston near stroke ends; the clamp itself provides the actual holding power. Note that the lock engages only after the rod has completely stopped, meaning it cannot brake a moving load.
Airtac BSAI Locking Clamp Cylinder BSAI100X80 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI100X80 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 80 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 BSAI100X80 Is Used
Mid-Stroke Vertical Hold
Locks a heavy lifting platform securely at any height along the travel, preventing gravity-driven drops during operation.
Power Failure Safety
The spring-applied clamp engages automatically upon air loss, freezing the payload exactly where it stopped without drifting.
Machining Position Lock
Holds a workpiece rigidly at a specific non-end position for precise drilling or inspection, resisting machining vibration.
Is the Airtac BSAI Locking Clamp Cylinder BSAI100X80 the Right Clamp-Lock?
Choose this 100 mm bore model when a mid-stroke hold is essential, stepping up from a BSAI80X80 (1402 N pull thrust, 3600 N holding force) for heavier vertical loads. If holding is only needed at stroke ends, a plain SAI or SAIL cylinder suffices, but BSAI excels by locking anywhere. For safety-critical applications, remember the clamp locks only after the rod stops and requires balanced pressure to unlock, or the rod may jump abruptly; human-safety loads need an additional independent safety measure.
As a single-rod replacement, match the 100 mm bore, 80 mm stroke, PT ports, and the BSAI mounting set (Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, TCM2). The M20x1.5 rod thread handles high side loads, and a -S magnet version can be specified for CMSE reed or DMSE electronic sensors.
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 BSAI100X80 FAQ
The integrated clamp-lock provides a static holding force of 5500 N, gripping the rod securely at any position along the 80 mm stroke once the piston has stopped moving.
The clamp unlocks only when air pressure (0.15-0.7 MPa) is applied to the G1/8 enclasp port and the pressures on both sides of the piston are balanced. Releasing it without balanced pressure can cause the rod to move abruptly.
Related AirTAC Lock & Standard Cylinders
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