Airtac BSAID Clamp Cylinder BSAID50X150
The AirTAC Airtac BSAID Clamp Cylinder BSAID50X150 is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 150mm 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
- Stroke150 mm
- Cylinder portG1/4
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM16×1.5
About the Airtac BSAID Clamp Cylinder BSAID50X150
The AirTAC BSAID50X150 is a double-acting ISO 15552 profile cylinder featuring a double-rod layout and an integrated spring-applied, air-released clamp-lock. It provides a static holding force of 1400 N at any position along its 150 mm travel. Because it is a double-rod unit, the thrust is equal in both directions at 825 N (0.5 MPa), and the second protruding rod is ideal for mounting a counterweight, a position flag, or dual-side guidance to prevent rotation.
A critical distinction exists between holding force and thrust: the 1400 N clamp force is a separate static braking value from the 825 N pneumatic thrust, meaning you must size the hold against the static load, not the cylinder's push power. Furthermore, the variable air cushion only decelerates the piston near the stroke ends; the clamp mechanism alone holds the load. Unlocking requires a third G1/8 enclasp port and balanced air pressure on both sides of the piston to prevent the rod from jumping abruptly upon release.
Airtac BSAID Clamp Cylinder BSAID50X150 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID50X150 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 150 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 BSAID50X150 Is Used
Vertical Mid-Stroke Hold
Suspends and locks a 50 mm double-rod payload at any point in a vertical lift, using the 1400 N clamp to prevent gravity-driven drops during cycle pauses.
Power Failure Safety
Engages the spring-applied clamp instantly upon air loss, holding the dual-rod load safely wherever it stopped rather than crashing down.
Machining Position Freeze
Secures a workpiece or fixture rigidly at a specific intermediate distance for probing or light machining, using the second rod for a position flag.
Is the Airtac BSAID Clamp Cylinder BSAID50X150 the Right Clamp-Lock?
Step down to a 40 mm bore (528 N pull thrust, 900 N hold) if your static load is lighter, or step up to a 63 mm bore (1402 N pull thrust, 2200 N hold) for heavier suspended masses. Choose this BSAID clamp-lock over a stroke-end-only SAIL model when you need to freeze the load mid-travel. A plain SAID is sufficient if no intermediate holding is required. This clamp locks only after the rod has stopped, so it cannot brake a moving load, and human-safety applications need an independent backup measure.
This 50 mm bore uses 1/4 inch PT cylinder ports and accepts Basic, FA, LB, TC, TCM1, and TCM2 mounts (omitting FB, CA, CB, and CR). The 20 mm carbon steel rod and M16x1.5 thread offer robust side-load capacity, though strokes of 300 mm or more require an external guide. Without a -S magnet, it cannot host CMSE or DMSE 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 BSAID50X150 FAQ
The integrated clamp-lock provides a static holding force of 1400 N. It locks the 20 mm rod at any position bidirectionally, but only after the cylinder has come to a complete stop.
The clamp is released via a third G1/8 enclasp port, but only after the air pressures on both sides of the piston are balanced. Releasing without balanced pressure can cause the rod to jump abruptly.
Related AirTAC Lock & Standard Cylinders
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