Airtac BSAID Clamp Cylinder BSAID40X200
The AirTAC Airtac BSAID Clamp Cylinder BSAID40X200 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 BSAID40X200
The AirTAC BSAID40X200 is a double-acting ISO 15552 profile cylinder featuring a double-rod design and an integrated clamp-lock. A spring-applied, air-released mechanism grips the rod to hold the load at any position along its 200 mm travel, providing a static holding force of 900 N. Because it is a double-rod unit, it delivers equal thrust in both directions, generating 528 N of push and pull force at 0.5 MPa. You must size the 900 N holding capacity against your static load, as this clamp force is entirely separate from the cylinder's thrust output.
This enclasp unit uses a third G1/8 unlock port, distinct from the 1/4 cylinder ports, and requires a balanced 0.15-0.7 MPa air pressure to release safely. The double-rod architecture allows you to mount a workpiece on one end and a guide or counterweight on the opposite end, providing dual-side anti-rotation. Remember that the variable air cushions only decelerate the piston near stroke ends; the mechanical clamp is the sole device responsible for holding the load.
Airtac BSAID Clamp Cylinder BSAID40X200 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID40X200 |
|---|---|
| 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 BSAID40X200 Is Used
Vertical Axis Holding
Locks a lifted load at any intermediate height with 900 N of holding force, preventing gravity-driven drops during an air-loss event.
Machining Position Lock
Secures a dual-sided workpiece fixture rigidly in place for machining or inspection, using the second rod for a position flag or counterweight.
Emergency Stop Safety
Holds the mechanism wherever it stops during an E-stop, though an independent safety measure is required for human safety hazards.
Is the Airtac BSAID Clamp Cylinder BSAID40X200 the Right Clamp-Lock?
Choose this double-rod model when a tool or fixture requires dual-side guidance and equal 528 N bi-directional thrust at 0.5 MPa alongside a 900 N holding force. If your application only needs to hold at the stroke end, a plain SAIL lock cylinder suffices, but BSAID is required for mid-stroke clamping. For higher load capacities, stepping up to a 50 mm bore provides 825 N of thrust and a 1400 N clamp force. The clamp engages only after the rod stops moving; it cannot brake a moving load, and unlocking requires balanced piston pressures to prevent the rod from jumping abruptly. For safety-critical operations, add an independent external safety measure.
As a replacement, verify the 40 mm bore, 200 mm stroke, PT port threads, and carbon steel rods. The BSAID supports Basic, FA, LB, TC, TCM1, and TCM2 mounts, omitting the FB, CA, CB, and CR styles found on single-rod variants. This unit does not include a magnet; add the -S option if you require CMSE reed or DMSE electronic solid-state position sensing. Its 16 mm rod diameter and M12x1.25 thread offer robust side-load capacity, though long unsupported strokes should still use an external guide.
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 BSAID40X200 FAQ
It provides a static holding force of 900 N. The spring-applied clamp locks the rod at any position bidirectionally, but only after the cylinder has stopped moving; it is not a dynamic braking system.
The clamp releases via a third G1/8 enclasp port using 0.15-0.7 MPa air. You must balance the air pressures on both sides of the piston before unlocking, or the rod may jump abruptly. Safety-critical loads require an additional independent measure.
Related AirTAC Lock & Standard Cylinders
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