Airtac BSAID Clamp Cylinder BSAID40X75S
The AirTAC Airtac BSAID Clamp Cylinder BSAID40X75S is a genuine double-acting ISO 15552 cylinder with a Ø40mm bore, 75mm 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
- Stroke75 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 BSAID40X75S
The AirTAC BSAID40X75-S is a double-acting ISO 15552 profile cylinder featuring a double-rod configuration and a spring-applied, air-released clamp-lock. It delivers an equal thrust of 528N in both directions at 0.5 MPa, while the integrated enclasp gripper secures the piston rod at any position along its 75mm travel. Because the rod extends from both ends, operators can mount a workpiece on one side and a guide or counterweight on the other, providing dual-side anti-rotation guidance.
It is crucial to distinguish the 900N static holding force from the 528N thrust; you must size the clamp against the static load, not the cylinder's push capacity. The clamp operates via a separate G1/8 enclasp port and locks only after the rod has stopped, meaning it cannot brake a moving load. Furthermore, the variable air cushion only decelerates the piston near stroke end, whereas the clamp provides the actual position holding.
Airtac BSAID Clamp Cylinder BSAID40X75S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID40X75S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 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 BSAID40X75S Is Used
Vertical Lift Holding
Suspends a dual-sided vertical load securely at any intermediate height, preventing gravity drops when air pressure is removed.
Power Loss Safety
Maintains the exact position of a guided tool or fixture anywhere in its travel during an unexpected compressed air failure.
Machining Fixture
Locks a counterweighted workpiece rigidly in place for intermediate processing steps without continuous pneumatic pressure.
Is the Airtac BSAID Clamp Cylinder BSAID40X75S the Right Clamp-Lock?
Choose this double-rod clamp-lock model when a load requires equal force both ways and mid-stroke holding. If you only need end-of-stroke locking, a plain SAIL saves complexity, while a standard SAID lacks a clamp entirely. To adjust capacity, the neighbouring bore 32 offers 345N pull and 600N holding force, whereas bore 50 provides 825N pull and 1400N holding force. For this 40mm bore, the M12x1.25 rod thread handles side loads well, but long unsupported strokes still need an external guide.
Always unlock the clamp with balanced air pressures on both sides of the piston to prevent the rod from jumping abruptly. For safety-critical applications, install an additional independent safety measure. This replacement unit features PT tapered ports, a -S magnet for CMSE reed and DMSE electronic sensors, and accepts Basic, FA, LB, TC, TCM1, or TCM2 mounts (omitting FB, CA, CB, CR).
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 BSAID40X75S FAQ
The spring-applied clamp-lock provides a static holding force of 900N. It locks the rod at any position bidirectionally, but only after the cylinder has stopped moving.
You must apply air to the G1/8 enclasp port only after the pressures on both sides of the piston are balanced. If pressures are unbalanced, the rod can jump abruptly upon release, so an independent safety measure is needed for human safety.
Related AirTAC Lock & Standard Cylinders
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