Airtac BSAID Clamp Cylinder BSAID80X300
The AirTAC Airtac BSAID Clamp Cylinder BSAID80X300 is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 300mm 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
- Stroke300 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID80X300
The AirTAC BSAID80X300 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 3600 N, gripping the rod securely at any position along its 300 mm travel. Because it is a double-rod design, the thrust is identical in both directions, delivering 2268 N of push and pull force at 0.5 MPa. A vital distinction to remember is that this 3600 N holding force is separate from the cylinder's thrust; you must size the clamp capacity against the static load weight, not the pneumatic push force.
The dual-rod architecture serves a distinct mechanical purpose beyond equal force: it allows you to mount a workpiece on one end and a guide, counterweight, or position flag on the opposite end, providing dual-side guidance and anti-rotation. The clamp mechanism uses a third G1/8 enclasp port—separate from the two 3/8 cylinder ports—and requires 0.15-0.7 MPa to unlock. Remember that the variable air cushions only decelerate the piston near stroke end; the clamp is the true load holder.
Airtac BSAID Clamp Cylinder BSAID80X300 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID80X300 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 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 BSAID80X300 Is Used
Vertical Axis Drop Prevention
Secures a 300 mm vertical lift at any mid-stroke position, preventing gravity drops during a sudden air loss while balancing loads on both rod ends.
Machining Position Hold
Locks the part rigidly in place for drilling or inspection with 3600 N of clamp force, using the second rod end for an external position flag.
Power Failure Safety Stop
Engages instantly upon air loss to freeze the double-rod mechanism wherever it stopped, acting as an emergency hold until pressure is restored.
Is the Airtac BSAID Clamp Cylinder BSAID80X300 the Right Clamp-Lock?
Select this double-rod model when your mechanism requires equal push/pull thrust and anti-rotation guidance over a 300 mm stroke. If you need less holding capacity, the 63 mm bore offers 1402 N pull thrust at 0.5 MPa and a 2200 N clamp hold. If your load is heavier, stepping up to a 100 mm bore provides 3681 N pull thrust and a 5500 N hold. Choose this BSAID clamp-lock over a plain SAID when unpowered mid-stroke holding is mandatory, and over a SAIL model when you need to lock anywhere instead of only at stroke ends.
For safe operation, note that the clamp locks only after the rod has stopped; it cannot brake a moving load. It must be unlocked with balanced air pressures on both piston sides, or the rod may jump abruptly. At 300 mm of travel, the long unsupported rod requires an external guide to prevent side-load wear. This unit uses PT port threads, a 25 mm carbon steel rod with an M20x1.5 thread, and accepts Basic, FA, LB, TC, TCM1, or TCM2 mounts (omitting FB/CA/CB/CR). Sensors require a magnet (-S) to work with CMSE reed or DMSE electronic switches.
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 BSAID80X300 FAQ
The clamp-lock provides a static holding force of 3600 N. It grips the 25 mm rod at any position along the 300 mm stroke, holding the load bidirectionally without requiring live air pressure.
The clamp locks only after the cylinder has stopped; it cannot brake a moving rod. To unlock it safely, you must balance the air pressures on both sides of the piston before applying air to the G1/8 enclasp port, otherwise the rod may jump abruptly.
Related AirTAC Lock & Standard Cylinders
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