Airtac BSAID Clamp Cylinder BSAID40X75
The AirTAC Airtac BSAID Clamp Cylinder BSAID40X75 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 BSAID40X75
The AirTAC BSAID40X75 is a double-acting ISO 15552 profile cylinder featuring a double-rod configuration and a spring-applied, air-released clamp-lock. It secures the load at any position along its 75 mm travel, providing a static holding force of 900 N. Because it is a double-rod actuator, the thrust is equal in both directions at 528 N (based on 0.5 MPa pull force). It is crucial to distinguish this 900 N holding force from the 528 N thrust; the clamp-lock holds the static load, while thrust drives the movement.
The rod extends from both ends, allowing you to mount a workpiece on one side and a guide, counterweight, or position flag on the other for dual-side guidance. A third G1/8 enclasp port controls the unlock function, which requires balanced air pressure on both sides of the piston to prevent the rod from jumping abruptly upon release. The clamp engages only after the cylinder has stopped, meaning it cannot brake a moving rod. Additionally, the variable air cushion at the stroke ends only decelerates the piston; it does not hold the load.
Airtac BSAID Clamp Cylinder BSAID40X75 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID40X75 |
|---|---|
| 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 BSAID40X75 Is Used
Vertical Lift Holding
Locks a raised load at any mid-stroke height on vertical axes to prevent sudden drops during cycle pauses.
Power Loss Safety
Spring-applied clamp engages automatically anywhere in travel during an air pressure failure to secure the load.
Machining Position Hold
Holds a dual-sided workpiece rigidly in place for intermediate machining or inspection operations.
Is the Airtac BSAID Clamp Cylinder BSAID40X75 the Right Clamp-Lock?
Choose this 40 mm bore double-rod model when you need equal force both ways and multi-position holding. If your application requires higher holding capacity, stepping up to the 50 mm bore provides a 1400 N holding force and 825 N thrust. Conversely, a 32 mm bore offers 600 N holding force and 345 N thrust for lighter loads. The BSAID40X75 is preferred over a SAIL cylinder when you must lock at any point in the travel rather than just at the stroke end. A plain SAID cylinder suffices if no mid-stroke holding is needed.
For replacement matching, verify the 40 mm bore, 75 mm stroke, double-rod layout, and PT tapered port threads. The BSAID mounting set omits FB, CA, CB, and CR brackets, accepting only Basic, FA, LB, TC, TCM1, and TCM2. This model has no magnet (-S not specified), so CMSE or DMSE sensors cannot be used. Always ensure the cylinder has stopped before locking, and balanced pressures are applied before unlocking; safety-critical loads require an additional independent safety measure.
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 BSAID40X75 FAQ
The clamp-lock provides a static holding force of 900 N. It is bidirectional and locks the rod at any position, but it only engages after the cylinder has stopped moving; it cannot brake a moving load.
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. Safety-critical applications need an additional independent safety measure.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac BSAID Clamp Cylinder BSAID40X75
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.