Airtac BSAID Clamp Cylinder BSAID80X500S
The AirTAC Airtac BSAID Clamp Cylinder BSAID80X500S is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 500mm 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
- Stroke500 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID80X500S
The AirTAC BSAID80X500-S is a double-acting ISO 15552 profile cylinder featuring a double-rod layout and an integrated spring-applied, air-released clamp-lock. It secures the piston rod at any position along its 500 mm travel, providing a static holding force of 3600 N. Because it is a double-rod unit, thrust is equal in both directions at 2268 N (pull at 0.5 MPa). Remember that holding force and thrust are distinct metrics; size the clamp's 3600 N capacity against your static load, not the cylinder's propulsion force.
The dual-rod design allows mounting a workpiece on one end and a counterweight, position flag, or guidance fixture on the opposite end, delivering dual-side anti-rotation stability. This enclasp mechanism utilizes a third G1/8 PT port for unlocking, requiring balanced air pressure on both piston sides to prevent the rod from jumping abruptly upon release. Furthermore, the variable air cushions only decelerate the piston near stroke ends; they do not hold the load, as only the mechanical clamp provides true static positioning.
Airtac BSAID Clamp Cylinder BSAID80X500S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID80X500S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 500 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 BSAID80X500S Is Used
Vertical Axis Load Holding
Secures a vertically lifted payload at any point in the 500 mm stroke, preventing gravity-driven drops during a compressed air failure.
Machining Position Lock
Holds a dual-side workpiece rigidly in place for machining or inspection, using the second rod for an anti-rotation guide.
Mid-Stroke Safety Stop
Provides emergency holding power anywhere along the travel path, ensuring the load stays put when the machine halts unexpectedly.
Is the Airtac BSAID Clamp Cylinder BSAID80X500S the Right Clamp-Lock?
Choose this double-rod model when symmetrical force and dual-side mounting are required. If your application only needs a single extending rod, the BSAI80X500-S offers the same 3600 N holding capacity. To adjust holding power, stepping down to a 63 mm bore drops the clamp force to 2200 N (pull thrust 1402 N), while moving up to a 100 mm bore increases the hold to 5500 N. If holding is only needed at the stroke ends rather than mid-travel, a plain SAI cylinder suffices.
This clamp locks only after the rod has stopped moving; it cannot brake a dynamic load. Safety-critical applications require an additional independent safety measure. At 500 mm of stroke, the long unsupported rod demands an external guide to prevent side-load wear. The unit includes a -S magnet for CMSE (reed) and DMSE (solid-state) sensors. Replacement requires matching the double rod, 80 mm bore, 500 mm stroke, 3/8 cylinder port, G1/8 enclasp port, and the BSAID mounting set (Basic, FA, LB, TC, TCM1, TCM2), which omits FB, CA, CB, and CR brackets.
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 BSAID80X500S FAQ
The integrated clamp-lock provides a static holding force of 3600 N. It engages via a spring mechanism and can hold the rod securely at any position within the 500 mm stroke, operating independently of the cylinder's 2268 N thrust.
The clamp is released by supplying air to the G1/8 enclasp port, but only after the air pressures on both sides of the piston are balanced. If pressures are unbalanced, the rod can jump abruptly. The lock holds only after the rod stops; it will not brake a moving load.
Related AirTAC Lock & Standard Cylinders
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