Airtac BSAI Locking Clamp Cylinder BSAI80X1000S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI80X1000S is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 1000mm 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 3600 N.
- BoreØ80 mm
- Stroke1000 mm
- Cylinder portG3/8
- 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 BSAI80X1000S
The AirTAC BSAI80X1000-S is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released clamp-lock. It secures the carbon steel piston rod at any position along its 1000 mm stroke, delivering a static holding force of 3600 N. Because it is a single-rod design, it generates 2513 N of push thrust at 0.5 MPa and a practical maximum of 3518 N at 0.7 MPa. Remember that this holding force is a separate quantity from the thrust; you must size the clamp capacity against your static load, not the cylinder's motive power.
This unit features a PT tapered port thread and a -S magnet for precise position sensing. The clamp mechanism uses a dedicated G1/8 enclasp port to release the rod, operating entirely independently from the variable air cushions at the stroke ends. The cushions decelerate the piston near travel limits, while the clamp is what actually holds the load. Operating pressure is 0.15-0.7 MPa, and the rod locks only after the cylinder has stopped moving.
Airtac BSAI Locking Clamp Cylinder BSAI80X1000S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI80X1000S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 1000 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G3/8 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 3600 N |
| Enclasp / unlock port | G1/8 |
| Operating pressure | 0.15 – 0.7 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 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 (Ø80 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa (max) | 3519 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (3600 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI80X1000S Is Used
Vertical Axis Mid-Stroke Hold
Secures a 1000 mm vertical lift at any intermediate height without relying on continuous air pressure, utilizing the 3600 N static holding force.
Emergency Drop Prevention
Engages the clamp automatically upon loss of air pressure to freeze the rod in place after the cylinder stops, protecting tooling and workpieces.
Machining Position Lock
Holds a heavy workpiece completely stationary at a custom position for drilling or inspection, ensuring the load does not drift during the operation.
Is the Airtac BSAI Locking Clamp Cylinder BSAI80X1000S the Right Clamp-Lock?
Choose this 80 mm bore when an application requires a 3518 N push force at 0.7 MPa combined with mid-stroke holding power. If your static load is lighter, stepping down to a 63 mm bore provides 2182 N thrust and a 2200 N hold. If you only need to prevent dropping at the fully retracted or extended end of travel, a SAIL stroke-end lock is sufficient; choose this BSAI model specifically when you must lock anywhere in the 1000 mm travel. For standard non-locking movement, a plain SAI cylinder is adequate.
Because the stroke is 1000 mm, the M20x1.5 rod thread and 25 mm rod diameter carry substantial side loads, but an external guide is still recommended to prevent binding over such a long unsupported distance. The clamp locks only after the rod stops, so it cannot brake a moving load. It must be unlocked with balanced air pressures on both sides of the piston to prevent the rod from jumping abruptly. For safety-critical human loads, add an independent safety measure. This replacement matches a single-rod 80 mm bore, 1000 mm stroke, PT ports, and accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, or TCM2 mounts. The -S magnet works with AirTAC CMSE reed and 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 BSAI80X1000S FAQ
The spring-applied clamp provides a static holding force of 3600 N. It engages at any position along the 1000 mm stroke, but only after the cylinder has stopped moving. It cannot brake a moving rod.
The clamp is released by supplying air to the dedicated G1/8 enclasp port. You must balance the air pressures on both sides of the piston before unlocking, otherwise the rod may move abruptly. An independent safety measure is required for human safety.
Related AirTAC Lock & Standard Cylinders
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