Airtac BSAID Clamp Cylinder BSAID50X175
The AirTAC Airtac BSAID Clamp Cylinder BSAID50X175 is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 175mm 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 1400 N.
- BoreØ50 mm
- Stroke175 mm
- Cylinder portG1/4
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM16×1.5
About the Airtac BSAID Clamp Cylinder BSAID50X175
The AirTAC BSAID50X175 is a double-acting ISO 15552 profile cylinder featuring a double-rod layout and a spring-applied, air-released clamp-lock. It provides a static holding force of 1400 N, gripping the rod to hold the load securely at any position along its 175 mm travel. Because it is a double-rod unit, the thrust is identical in both directions at 825 N at 0.5 MPa. Remember that the clamp holding force is a separate quantity from the cylinder thrust; you must size the holding force against your static load, not the push or pull thrust.
A rod extending from both ends allows you to mount a workpiece on one side and a guide or counterweight on the other, providing dual-side guidance and anti-rotation. The enclasp mechanism uses a third G1/8 port to release the grip, requiring 0.15-0.7 MPa of balanced pressure to unlock safely. Note that the variable air cushion only decelerates the piston near stroke end; the clamp itself is what holds the load.
Airtac BSAID Clamp Cylinder BSAID50X175 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID50X175 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 175 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G1/4 |
| Rod thread | M16×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 1400 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 (Ø50 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa (max) | 1374 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (1400 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID50X175 Is Used
Vertical Axis Holding
Locks a lifted workpiece at any height along the vertical travel, preventing sudden drops during a power loss.
Machining Position Hold
Secures a dual-side workpiece rigidly in place for machining or inspection, using the second rod for a position flag.
Dual-Side Tooling Mount
Mounts a primary workpiece on one rod end and a counterweight or secondary tool on the opposite end for balanced operation.
Is the Airtac BSAID Clamp Cylinder BSAID50X175 the Right Clamp-Lock?
Step down to a 40 mm bore if your application only needs 528 N of thrust and 900 N of holding force, or move up to a 63 mm bore for 1402 N thrust and 2200 N holding capacity. Choose this BSAID50X175 when you need equal force both ways and a rod out both ends for mounting external guides. Select a plain SAID if you do not need mid-stroke holding, or a SAIL if holding only at the stroke end is sufficient. The clamp locks only after the cylinder has stopped; it cannot brake a moving rod. Safety-critical applications require an additional independent safety measure.
This configuration uses standard carbon steel rods and PT tapered ports. The 20 mm rod diameter and M16x1.5 thread handle side loads well, but for a 175 mm stroke an external guide is still recommended. It supports Basic, FA, LB, TC, TCM1, and TCM2 mountings (omitting FB, CA, CB, CR). Without a -S magnet, it will not host CMSE reed or 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 BSAID Clamp Cylinder BSAID50X175 FAQ
The clamp-lock provides a static holding force of 1400 N. It is bidirectional and locks at any position along the stroke, but only after the cylinder has stopped moving.
The clamp is released by applying air to the third G1/8 enclasp port. The air pressures on both sides of the piston must be balanced before unlocking, otherwise the rod can jump abruptly.
Related AirTAC Lock & Standard Cylinders
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