Airtac BSAID Clamp Cylinder BSAID100X400S
The AirTAC Airtac BSAID Clamp Cylinder BSAID100X400S is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 400mm 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
- Stroke400 mm
- Cylinder portG1/2
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID100X400S
The AirTAC BSAID100X400-S is a double-acting ISO 15552 profile cylinder featuring a double-rod layout and a spring-applied, air-released clamp-lock. It secures the load at any position along its 400 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 (at 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 3681 N thrust; the clamp only holds stationary loads and cannot brake a moving rod. The lock engages via a dedicated G1/8 enclasp port and releases only when cylinder pressures are balanced. Note that the variable air cushion merely decelerates the piston near stroke ends—it does not hold the load. The integrated -S magnet supports precise tracking with CMSE reed and DMSE electronic sensors.
Airtac BSAID Clamp Cylinder BSAID100X400S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID100X400S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 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 BSAID100X400S Is Used
Vertical Lift Holding
Maintains vertical workpiece positions anywhere along the 400 mm stroke during power loss, relying on the 5500 N clamp rather than live air pressure.
Machining Position Lock
Secures a dual-sided workpiece fixture rigidly for machining or inspection, using the second rod for an anti-rotation guide.
Emergency Stop Safety
Holds the load safely after the cylinder stops, though an independent mechanical measure is required for human safety hazards.
Is the Airtac BSAID Clamp Cylinder BSAID100X400S the Right Clamp-Lock?
Choose this 100 mm bore when an application demands 3681 N of equal bidirectional thrust and a 5500 N static hold over a 400 mm travel. If your load is lighter, the 80 mm bore offers 2268 N thrust and a 3600 N hold; if you need more holding power, the 125 mm bore provides 5734 N thrust and an 8600 N hold. This model is preferred over a stroke-end-only SAIL cylinder when you must lock anywhere mid-travel. For non-safety-critical holding without mid-stroke locks, a plain SAID cylinder suffices.
When replacing, match the double-rod layout, 100 mm bore, 400 mm stroke, and PT port threads. The 1/2 inch cylinder ports and G1/8 unlock port require separate plumbing. Mounting options omit FB, CA, CB, and CR brackets, accepting only Basic, FA, LB, TC, TCM1, and TCM2. Because the stroke is 400 mm, the 25 mm rod and M20x1.5 thread handle side loads well, but an external guide is still recommended. Operating pressure is 0.15-0.7 MPa, with a speed range of 30-500 mm/s.
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 BSAID100X400S FAQ
It uses a spring-applied, air-released mechanism to grip the rod at any position with a 5500 N static holding force. It is bidirectional and engages only after the cylinder has stopped, meaning it cannot brake a moving load.
The double-rod layout provides equal thrust in both directions and allows you to mount a workpiece on one end and a guide or position flag on the other. To unlock the clamp safely, air pressures on both sides of the piston must be balanced to prevent the rod from jumping.
Related AirTAC Lock & Standard Cylinders
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