Airtac BSAID Clamp Cylinder BSAID40X200S
The AirTAC Airtac BSAID Clamp Cylinder BSAID40X200S is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 200mm 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
- Stroke200 mm
- Cylinder portG1/4
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM12×1.25
About the Airtac BSAID Clamp Cylinder BSAID40X200S
The AirTAC BSAID40X200-S is a double-acting ISO 15552 profile cylinder featuring a rod out both ends and a built-in spring-applied, air-released clamp-lock mechanism. It delivers an equal thrust of 528 N in both directions at 0.5 MPa, while the integrated enclasp gripper provides a static holding force of 900 N. A key distinction is that this holding force is entirely separate from the cylinder thrust; you must size the clamp capacity against your static load, not the pneumatic push force.
Because it is a double-rod design, you can mount a workpiece on one end and a guide or position flag on the opposite end for dual-side anti-rotation. The clamp locks at any position along the 200 mm stroke, but it only engages after the rod has stopped and cannot brake a moving load. A third G1/8 enclasp port supplies the unlock pressure, which requires balanced air on both sides of the piston to prevent the rod from jumping abruptly upon release. The -S magnet option pairs precisely with AirTAC CMSE reed and DMSE electronic sensors.
Airtac BSAID Clamp Cylinder BSAID40X200S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID40X200S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 200 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 BSAID40X200S Is Used
Vertical Lift Holding
Holds a suspended load at any point in the 200 mm travel during a power loss, preventing gravity-driven drops on vertical axes.
Machining Position Lock
Secures a dual-sided workpiece fixture rigidly in place for intermediate machining or inspection stops without relying on air pressure.
Dual-Side Tooling Index
Uses the second rod end for a counterweight or position flag while the clamp locks the assembly safely mid-stroke.
Is the Airtac BSAID Clamp Cylinder BSAID40X200S the Right Clamp-Lock?
Choose this double-rod clamp-lock when you need equal force both ways and anti-rotation guidance, stepping up from a 32 mm bore (345 N pull, 600 N hold) if your load requires more stability, or down to a 32 mm if 900 N of holding force is excessive. The BSAID40X200-S beats a SAIL end-lock cylinder because it grips the rod anywhere in the travel, not just at stroke ends. If you only need standard movement without position holding, a plain SAID cylinder suffices.
Remember that the clamp locks only after the cylinder stops, so human-safety applications require an independent external brake. The 16 mm carbon steel rod with an M12x1.25 thread handles side loads well, but for any stroke over 300 mm you should add an external guide. Replacement requires a 40 mm bore, 200 mm stroke, PT ported double-rod body with the -S magnet. The correct mounting set for this double-rod type omits FB, CA, CB, and CR, accepting only Basic, FA, LB, TC, TCM1, and TCM2 brackets.
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 BSAID40X200S FAQ
The clamp-lock provides a static holding force of 900 N. It is bidirectional and locks the rod at any position along the stroke, but only after the cylinder has stopped moving.
The clamp uses a third G1/8 enclasp port and requires balanced air pressure on both sides of the piston to unlock. If pressures are not balanced, the rod can jump abruptly upon release, so an independent safety measure is needed for human-safety loads.
Related AirTAC Lock & Standard Cylinders
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