Airtac BSAID Clamp Cylinder BSAID40X700
The AirTAC Airtac BSAID Clamp Cylinder BSAID40X700 is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 700mm 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
- Stroke700 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 BSAID40X700
The AirTAC BSAID40X700 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 900 N and locks the carbon steel rod at any position along its 700 mm stroke. Because it is a double-rod unit, the thrust is equal in both directions at 528 N (0.5 MPa), and the extending rod out of the back end allows mounting a position flag, secondary tool, or counterweight for dual-side guidance. It is important to distinguish this 900 N holding force from the 528 N thrust; the clamp secures a static load, while thrust dictates movement. The enclasp mechanism relies on a separate G1/8 unlock port requiring 0.15-0.7 MPa to release.
The clamp operates bidirectionally, gripping securely whether the rod was extending or retracting, but it is designed to hold only after the cylinder has stopped moving, not to brake a live load. The variable air cushions at both ends only decelerate the piston near stroke end; the clamp itself is what holds the load. Operating pressure is 0.15-0.7 MPa, and unlocking requires balanced air pressure on both sides of the piston to prevent the rod from jumping abruptly. For position sensing, an -S magnet variant would be needed to accept AirTAC CMSE reed or DMSE electronic sensors.
Airtac BSAID Clamp Cylinder BSAID40X700 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID40X700 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 700 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 BSAID40X700 Is Used
Vertical Axis Drop Prevention
Holds a 900 N vertical load at any intermediate position during an unexpected power loss, preventing gravity-driven falls on long 700 mm strokes.
Dual-Side Machining Fixture
Uses the double-rod layout to mount a machining fixture on one end and an anti-rotation guide on the other, clamping securely during workpiece processing.
Intermediate Inspection Hold
Locks the rod mid-stroke to freeze a heavy assembly in place for manual inspection without maintaining live air pressure.
Is the Airtac BSAID Clamp Cylinder BSAID40X700 the Right Clamp-Lock?
Choose this double-rod BSAID40X700 when you need to mount workpieces on one end and a guide or anti-rotation flag on the other, alongside mid-stroke holding. If you do not need the second rod, the single-rod BSAI40X700 offers the same 900 N hold and 628 N push thrust. If your application only requires holding at the stroke ends rather than anywhere in travel, a SAIL40 cylinder suffices. To step up force, the BSAID50X700 provides 825 N thrust both ways and a 1400 N hold.
This 700 mm stroke exceeds 300 mm, so an external guide is recommended to support the rod and prevent excessive side loading. The clamp locks only after the rod stops, and it must be released with balanced pressures to avoid sudden movement; safety-critical loads require an additional independent measure. Replacement requires a double-rod, 40 mm bore, 700 mm stroke, PT ported cylinder. The BSAID mounting set 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 BSAID40X700 FAQ
The integrated clamp-lock provides a static holding force of 900 N. It is spring-applied and air-released, gripping the rod bidirectionally at any position along the 700 mm stroke once the cylinder has stopped moving.
The clamp must only be unlocked after the cylinder has stopped and the air pressures on both sides of the piston are balanced. Releasing it with unbalanced pressure can cause the rod to jump abruptly. An additional independent safety measure is required for human-safety-critical loads.
Related AirTAC Lock & Standard Cylinders
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