Airtac BSAID Clamp Cylinder BSAID80X300S
The AirTAC Airtac BSAID Clamp Cylinder BSAID80X300S 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 BSAID80X300S
The AirTAC BSAID80X300-S 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 300 mm stroke with a static holding force of 3600 N. Because it is a double-rod actuator, it delivers equal thrust in both directions, generating 2268 N of push and pull force at 0.5 MPa. You must size the holding force against your static load independently of the cylinder thrust, as the clamp capacity and pneumatic thrust are two separate quantities.
This unit uses a third G1/8 enclasp port to release the brake, requiring a balanced air pressure of 0.15-0.7 MPa to unlock safely. The variable air cushions only decelerate the piston near stroke ends; the mechanical clamp is what actually holds the load. A rod extends from both ends so you can mount a workpiece on one side and a guide or position flag on the other, providing dual-side anti-rotation guidance.
Airtac BSAID Clamp Cylinder BSAID80X300S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID80X300S |
|---|---|
| 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 BSAID80X300S Is Used
Vertical Axis Holding
Secures a 300 mm vertical lift at any intermediate position without relying on continuous air pressure, utilizing the 3600 N holding force.
Power Loss Safety
Spring-applied clamp engages automatically upon air loss to freeze the double-rod payload instantly wherever it has stopped.
Machining Position Lock
Locks the dual-side guided workpiece rigidly in place for machining or inspection, preventing drift from vibration.
Is the Airtac BSAID Clamp Cylinder BSAID80X300S the Right Clamp-Lock?
Choose this double-rod model when a workpiece and a secondary guide or flag need mounting on opposite ends, requiring equal 2268 N thrust both ways. If you only need a single extending rod, the BSAI80X300-S provides the same 3600 N holding force without the second rod. For lighter vertical axes, the BSAID63X300-S offers 1402 N thrust and a 2200 N hold. Remember the clamp locks only after the rod stops; it cannot brake a moving load. Human-safety applications require an independent safety measure.
This replacement match features an 80 mm bore, 300 mm stroke, PT tapered ports, and a -S magnet for CMSE reed or DMSE electronic sensors. The 25 mm rod and M20x1.5 thread handle high side loads, but at 300 mm you should still use an external guide. Mounting options omit FB, CA, CB, and CR, accepting only Basic, FA, LB, TC, TCM1, and TCM2.
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 BSAID80X300S FAQ
It uses a spring-applied, air-released mechanism that clamps the rod to hold the load at any position with a 3600 N static force. It is bidirectional and engages only after the cylinder has stopped moving.
The clamp unlocks via a third G1/8 enclasp port, but only when air pressures on both sides of the piston are balanced. If pressures are not balanced, the rod can jump abruptly upon release.
Related AirTAC Lock & Standard Cylinders
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