Airtac BSAID Clamp Cylinder BSAID100X250S
The AirTAC Airtac BSAID Clamp Cylinder BSAID100X250S is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 250mm 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
- Stroke250 mm
- Cylinder portG1/2
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID100X250S
The AirTAC BSAID100X250-S is a double-acting ISO 15552 profile cylinder featuring a rod extending from both ends and a built-in clamp-lock mechanism. A spring-applied, air-released gripper secures the piston rod at any position along its 250 mm travel, delivering a static holding force of 5500 N. Because it is a double-rod design, the thrust is equal in both directions at 3681 N (0.5 MPa), and the second rod allows you to mount a position flag or secondary tool on the opposite end for dual-side guidance.
It is vital to distinguish this 5500 N static holding force from the cylinder's 3681 N thrust—the clamp maintains the load's position without live air pressure, whereas thrust dictates movement. Furthermore, the variable air cushions only decelerate the piston near stroke ends; the mechanical clamp is the sole device holding the load. Unlocking requires a third G1/8 enclasp port and balanced cylinder pressures to prevent the rod from jumping abruptly upon release.
Airtac BSAID Clamp Cylinder BSAID100X250S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID100X250S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 250 mm |
| Type | Double rod (BSAID), 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 | — |
Equal force both directions (double rod). 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 BSAID Clamp Cylinder BSAID100X250S Is Used
Vertical Load Holding
Secures heavy vertical lifts at any point in the 250 mm travel using 5500 N of holding force, preventing drops during air pressure loss.
Machining Position Hold
Clamps a workpiece rigidly for machining or inspection, using the second rod end for a counterweight or anti-rotation guide.
Emergency Stop Safety
Holds the load safely in place after the cylinder stops, though human-safety applications still require an independent mechanical backup.
Is the Airtac BSAID Clamp Cylinder BSAID100X250S the Right Clamp-Lock?
Select this 100 mm bore when an application demands substantial mid-stroke holding, stepping up from a 63 mm bore that offers 1402 N pull thrust and 2200 N holding force. Choose this BSAID model over a stroke-end-only SAIL lock when you must enclasp the load anywhere in the travel, or select a plain SAID if no intermediate holding is necessary. The clamp locks only after the rod has stopped moving; it cannot brake a moving load, and safety-critical applications require an independent external measure.
As a replacement match, ensure double-rod geometry, 100 mm bore, 250 mm stroke, and PT tapered ports. The 1/2 inch cylinder ports and G1/8 unlock port must be correctly plumbed. Mounting is limited to Basic, FA, LB, TC, TCM1, and TCM2 (omitting FB/CA/CB/CR). The -S magnet works with AirTAC CMSE (reed) and DMSE (electronic) sensors, and the robust M20x1.5 rod thread handles high side loads well.
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 BSAID100X250S FAQ
It uses a spring-applied, air-released mechanism to grip the rod at any position with a 5500 N static holding force. It locks only after the cylinder has stopped and cannot brake a moving rod.
The double-rod design provides equal thrust both ways (3681 N at 0.5 MPa) and allows mounting a guide, flag, or secondary tool on the opposite end for dual-side anti-rotation.
Related AirTAC Lock & Standard Cylinders
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