Airtac BSAID Clamp Cylinder BSAID63X125
The AirTAC Airtac BSAID Clamp Cylinder BSAID63X125 is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 125mm 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 2200 N.
- BoreØ63 mm
- Stroke125 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM16×1.5
About the Airtac BSAID Clamp Cylinder BSAID63X125
The AirTAC BSAID63X125 is a double-acting ISO 15552 profile cylinder featuring a double-rod configuration and a spring-applied, air-released clamp-lock. It provides a static holding force of 2200 N and can secure the load at any position along its 125 mm stroke. Because it is a double-rod unit, its thrust is equal in both directions at 1402 N (0.5 MPa). Remember that this holding force is a separate metric from thrust; you must size the clamp's 2200 N capacity against your static load, not the cylinder's push force.
A rod extending from both ends allows you to mount a workpiece on one side and a guide, counterweight, or position flag on the other, providing dual-side guidance. The clamp operates via a third G1/8 enclasp port, requiring 0.15-0.7 MPa to unlock. Note that the variable air cushion only decelerates the piston near stroke end; the clamp itself is what holds the load. The rod stops moving before the clamp engages, and unlocking requires balanced pressures to prevent abrupt rod jumps.
Airtac BSAID Clamp Cylinder BSAID63X125 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID63X125 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 125 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G3/8 |
| Rod thread | M16×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 2200 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 (Ø63 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa (max) | 2182 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (2200 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID63X125 Is Used
Vertical Z-Axis Hold
Maintains a 2200 N grip on a raised vertical load at any point in the 125 mm travel, preventing drops during air pressure loss.
Machining Position Lock
Secures a dual-side workpiece fixture rigidly in place for mid-stroke drilling or inspection, utilizing the second rod for an anti-rotation guide.
Power Failure Safety
The spring-applied clamp engages instantly upon loss of air, holding the stopped load safely wherever it is in the cycle.
Is the Airtac BSAID Clamp Cylinder BSAID63X125 the Right Clamp-Lock?
Choose this double-rod clamp-lock cylinder when you need to anchor a load mid-stroke rather than just at the ends, which is where a plain SAID falls short. If your application requires less holding capacity, the 50 mm bore offers 825 N of pull thrust and 1400 N of holding force; stepping up to the 80 mm bore yields 2268 N of thrust and 3600 N of holding power. The 20 mm rod diameter and M16x1.5 thread provide robust side-load resistance, though any stroke over 300 mm still demands an external guide.
This BSAID63X125 uses PT tapered ports (3/8 cylinder, G1/8 enclasp) and accepts Basic, FA, LB, TC, TCM1, or TCM2 mounts, omitting the FB, CA, CB, and CR brackets due to its double-rod design. It lacks a standard magnet, so position sensing requires a custom solution. Always ensure the cylinder has fully stopped before applying the clamp, and add an independent safety measure for human-safety-critical loads.
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 BSAID63X125 FAQ
The integrated clamp-lock provides a static holding force of 2200 N. It can secure the rod at any position along the 125 mm stroke, but it only engages after the cylinder has stopped moving.
The BSAID features a double-rod design extending from both ends, providing equal thrust in both directions and allowing a guide or tool to be mounted on the opposite side. The BSAID also omits the FB, CA, CB, and CR mounting brackets compared to the single-rod BSAI.
Related AirTAC Lock & Standard Cylinders
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