Airtac BSAID Clamp Cylinder BSAID40X450
The AirTAC Airtac BSAID Clamp Cylinder BSAID40X450 is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 450mm 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 900 N.
- BoreØ40 mm
- Stroke450 mm
- Cylinder portG1/4
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM12×1.25
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac BSAID Clamp Cylinder BSAID40X450
The AirTAC BSAID40X450 is a double-acting ISO 15552 profile cylinder featuring a double-rod configuration and a spring-applied, air-released clamp-lock. It secures the load at any position along its 450 mm stroke with a static holding force of 900 N. Because it is a double-rod design, the thrust is equal in both directions at 528 N. Remember that this holding force is a distinct metric from the cylinder thrust; you must size the clamp's 900 N capacity against your static load, not the 528 N drive force. The enclasp mechanism requires a separate G1/8 unlock port, and the variable air cushion only decelerates the piston near stroke ends—it does not hold the load.
Having 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 anti-rotation. The clamp locks bidirectionally after the cylinder has stopped, but it cannot brake a moving rod. You must unlock it with balanced air pressures (0.15-0.7 MPa operating range) to prevent the rod from jumping abruptly. Since no magnet is specified here, position sensing via CMSE or DMSE switches is not enabled.
Airtac BSAID Clamp Cylinder BSAID40X450 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID40X450 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 450 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G1/4 |
| Rod thread | M12×1.25 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 900 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 800 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 (Ø40 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 (Ø40mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa (max) | 880 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (900 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID40X450 Is Used
Vertical Lift Holding
Secures a vertically lifted payload at any intermediate height using the 900 N clamp, preventing falls when air pressure is removed.
Machining Position Lock
Holds a dual-sided workpiece rigidly in place for machining or inspection, using the second rod for an external guide.
Power Loss Safety
The spring-applied clamp engages automatically upon air loss, freezing the 450 mm stroke position safely.
Is the Airtac BSAID Clamp Cylinder BSAID40X450 the Right Clamp-Lock?
Choose this BSAID40X450 when you need dual-side guidance and intermediate holding along a long travel. If you need less holding capacity, the 32 mm bore offers 600 N hold and 345 N thrust; stepping up to the 50 mm bore provides 1400 N hold and 825 N thrust. This model outperforms a SAIL cylinder because it locks anywhere, not just at stroke ends, though a plain SAID suffices if no intermediate clamping is needed. At 450 mm stroke, the 16 mm rod and M12x1.25 thread carry moderate side loads, but an external guide is recommended for unsupported lengths. For replacement, match the double-rod layout, 40 mm bore, 450 mm stroke, and PT port threads. The BSAID mounting set omits FB, CA, CB, and CR, accepting only Basic, FA, LB, TC, TCM1, and TCM2.
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 BSAID40X450 FAQ
The clamp-lock provides a static holding force of 900 N. It engages via spring pressure to hold the rod at any position, but only after the cylinder has stopped moving.
The clamp is released by applying air to the G1/8 enclasp port, but only after the pressures on both sides of the piston are balanced. Releasing it with unbalanced pressure can cause the rod to jump abruptly.
Related AirTAC Lock & Standard Cylinders
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