Airtac BSAID Clamp Cylinder BSAID40X700S
The AirTAC Airtac BSAID Clamp Cylinder BSAID40X700S 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 BSAID40X700S
The AirTAC BSAID40X700-S is a double-acting ISO 15552 profile cylinder featuring a double-rod configuration and a spring-applied, air-released clamp-lock. It provides a static holding force of 900 N and locks the rod at any position along its 700 mm travel. Because it is a double-rod design, thrust is equal in both directions at 528 N (0.5 MPa). A crucial distinction is that this 900 N holding force is separate from the cylinder thrust; you must size the clamp against the static load, not the motive force. The clamp uses a third G1/8 enclasp port and requires balanced piston pressure to unlock safely.
Having a rod extending from both ends allows you to mount a workpiece on one side and a guide or counterweight on the other, providing dual-side anti-rotation. The variable air cushions only decelerate the piston near stroke ends; the clamp is what actually holds the load. This -S variant includes a magnet for CMSE reed and DMSE electronic sensors. Operating pressure is 0.15-0.7 MPa, with a speed range of 30-800 mm/s.
Airtac BSAID Clamp Cylinder BSAID40X700S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID40X700S |
|---|---|
| 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 BSAID40X700S Is Used
Vertical Axis Hold
Locks a 700 mm vertical lift at any mid-stroke position with 900 N of holding force to prevent gravity drops during operation.
Power Loss Safety
Spring-applied clamp engages automatically on air loss, securely holding the load anywhere in the travel range.
Machining Positioning
Uses the double-rod end to mount a counterweight while the clamp holds the workpiece steady against machining vibration.
Is the Airtac BSAID Clamp Cylinder BSAID40X700S the Right Clamp-Lock?
Choose this 40 mm bore if you need 528 N thrust both ways and 900 N static holding. If your load requires more restraint, stepping up to the 50 mm bore provides 825 N thrust and 1400 N holding force. This model excels over a SAIL cylinder because it locks at any position, whereas SAIL only holds at stroke ends. If you do not need mid-stroke clamping, a plain SAID cylinder suffices. For this 700 mm stroke, the 16 mm rod and M12x1.25 thread handle moderate side loads, but an external guide is recommended for unsupported lengths.
The clamp locks only after the rod has stopped; it cannot brake a moving load. It must be unlocked with balanced air pressures, or the rod may jump abruptly. Safety-critical applications require an independent external measure. Replacement requires a double-rod, 40 mm bore, 700 mm stroke, PT port threads, and the BSAID mounting set (Basic, FA, LB, TC, TCM1, TCM2), which omits FB/CA/CB/CR. The -S magnet works with CMSE and 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 BSAID40X700S FAQ
It provides a static holding force of 900 N. This clamp locks the rod at any position along the stroke and holds bidirectionally, but it only engages 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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