Airtac BSAID Clamp Cylinder BSAID80X75S
The AirTAC Airtac BSAID Clamp Cylinder BSAID80X75S is a genuine double-acting ISO 15552 cylinder with a Ø80mm 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 3600 N.
- BoreØ80 mm
- Stroke75 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID80X75S
The AirTAC BSAID80X75-S is a double-acting ISO 15552 profile cylinder featuring a double-rod layout and a spring-applied, air-released clamp-lock mechanism. It secures the load at any position along its 75mm stroke, delivering a static holding force of 3600 N. Because it is a double-rod unit, the thrust is equal in both directions at 2268 N (0.5 MPa). A core design principle here is that holding force and thrust are separate values; you must size the 3600 N clamp against your static load, independent of the 2268 N pneumatic thrust.
This enclasp mechanism uses a third G1/8 port to release the grip, requiring balanced air pressure on both piston sides to prevent the rod from jumping abruptly upon release. The double-rod configuration serves a distinct purpose beyond equal force: it allows mounting a workpiece on one end and a guide, counterweight, or position flag on the other, providing dual-side anti-rotation guidance. The 25mm carbon steel rod and M20x1.5 thread offer robust side-load capacity, and the integrated -S magnet supports precise tracking via CMSE reed or DMSE electronic sensors.
Airtac BSAID Clamp Cylinder BSAID80X75S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID80X75S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 75 mm |
| Type | Double rod (BSAID), 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 | — |
Equal force both directions (double rod). 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 BSAID Clamp Cylinder BSAID80X75S Is Used
Vertical Load Holding
Maintains vertical position anywhere in the 75mm travel with 3600 N of holding force, preventing gravity-induced drops during air pressure loss.
Machining Position Lock
Secures a dual-side workpiece fixture rigidly for machining or inspection, using the second rod end for an external guide or position flag.
Emergency Stop Hold
Clamps the 25mm carbon steel rod bidirectionally at any point in the stroke to freeze motion immediately after the cylinder stops during an E-stop.
Is the Airtac BSAID Clamp Cylinder BSAID80X75S the Right Clamp-Lock?
Choose this double-rod BSAID80X75-S when your mechanism requires multi-point holding anywhere in the stroke and dual-side guidance. If your application only needs to hold at the stroke end, a plain SAIL80 cylinder suffices, while a standard SAID80 is better if no lock is needed at all. If your static load exceeds the 3600 N clamp capacity, stepping up to the 125mm bore provides an 8600 N holding force and a 5734 N equal thrust.
The clamp locks only after the rod has stopped; it cannot brake a moving load. Safety-critical applications require an additional independent safety measure. This PT-ported model includes a -S magnet for CMSE/DMSE sensors. It accepts Basic, FA, LB, TC, TCM1, and TCM2 mountings (omitting FB, CA, CB, and CR). The variable air cushion only decelerates the piston near stroke end; the clamp itself is what holds the load.
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 BSAID Clamp Cylinder BSAID80X75S FAQ
The built-in clamp-lock provides a static holding force of 3600 N. It locks at any position along the stroke after the rod stops, and because it is a double-rod unit, the 2268 N thrust is equal in both directions.
The clamp is spring-applied and air-released via a third G1/8 port. You must balance the air pressure on both sides of the piston before unlocking, otherwise the rod can jump abruptly. It cannot brake a moving rod, so safety-critical loads need an independent safety measure.
Related AirTAC Lock & Standard Cylinders
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