Airtac BSAID Clamp Cylinder BSAID80X25S
The AirTAC Airtac BSAID Clamp Cylinder BSAID80X25S is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 25mm 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 3600 N.
- BoreØ80 mm
- Stroke25 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID80X25S
The AirTAC BSAID80X25-S is a double-acting ISO 15552 profile cylinder featuring a double-rod configuration and a built-in spring-applied, air-released clamp-lock. It provides a static holding force of 3600 N at any position along its 25 mm stroke. Because it is a double-rod unit, the thrust is equal in both directions at 2268 N (0.5 MPa). Buyers must distinguish between this clamp holding force and the cylinder's standard thrust: the 3600 N rating secures the static load, while the 2268 N thrust drives the motion.
This enclasp mechanism requires a third G1/8 unlock port in addition to the two 3/8 cylinder ports, operating within a balanced 0.15-0.7 MPa pressure range. The double-rod design allows mounting a workpiece on one end and a guide or position flag on the other for dual-side anti-rotation. Remember that the variable air cushion only decelerates the piston near stroke end; the clamp itself is the device that holds the load.
Airtac BSAID Clamp Cylinder BSAID80X25S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID80X25S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 25 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G3/8 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 3600 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 1000 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 (Ø80 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa (max) | 3519 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (3600 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID80X25S Is Used
Vertical Lift Hold
Maintains a 3600 N vertical load at any intermediate height without relying on continuous air pressure.
Power-Loss Safety
Spring-applied clamp engages instantly during pneumatic or electrical failure to freeze the double-rod position.
Machining Fixture
Locks the part rigidly mid-stroke for machining or inspection, using the second rod for a position flag.
Is the Airtac BSAID Clamp Cylinder BSAID80X25S the Right Clamp-Lock?
Choose this 80 mm bore model when an application demands 2268 N of thrust both ways alongside a robust 3600 N holding capacity. If your load is lighter, stepping down to a 63 mm bore offers 1402 N of thrust and a 2200 N hold, whereas a 100 mm bore provides 3681 N of thrust and a 5500 N hold for heavier fixtures. The BSAID80X25-S is preferred over a stroke-end-only SAIL cylinder when you must lock the load mid-travel. A plain SAID is sufficient if no intermediate holding is required.
Crucially, the clamp locks only after the rod has completely stopped; it cannot brake a moving rod. It must be unlocked with balanced air pressures to prevent the rod from jumping abruptly. For safety-critical loads, an additional independent safety measure is required. This configuration includes a carbon steel rod, PT port threads, and an -S magnet for CMSE reed and DMSE electronic sensors. It supports Basic, FA, LB, TC, TCM1, and TCM2 mounts (omitting FB, CA, CB, CR). The 25 mm stroke is short, so side-load stress is minimized without 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 BSAID80X25S FAQ
The spring-applied clamp provides a static holding force of 3600 N. It engages at any position along the stroke to hold the load securely without live air pressure.
The clamp locks only after the cylinder has stopped; it cannot brake a moving rod. To unlock it safely, air pressures on both sides of the piston must be balanced via the G1/8 enclasp port, preventing abrupt rod movement.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac BSAID Clamp Cylinder BSAID80X25S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.