Airtac BSAID Clamp Cylinder BSAID80X350S
The AirTAC Airtac BSAID Clamp Cylinder BSAID80X350S is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 350mm 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
- Stroke350 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID80X350S
The AirTAC BSAID80X350-S is a double-acting ISO 15552 profile cylinder featuring a double-rod layout and a spring-applied, air-released clamp-lock. It secures the load at any position along its 350 mm travel, delivering a static holding force of 3600 N. Because it is a double-rod unit, the thrust is equal in both directions at 2268 N (pull-side value at 0.5 MPa). Remember that holding force and thrust are separate metrics; you must size the clamp's 3600 N capacity against your static load, not the cylinder's propulsion thrust.
A 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 anti-rotation. The 25 mm carbon steel rod and M20x1.5 thread provide robust side-load capacity, though this 350 mm stroke still requires an external guide for unsupported masses. The enclasp mechanism uses a third G1/8 PT port for unlocking (0.15-0.7 MPa). Note that the variable air cushion only decelerates the piston near stroke end; the clamp is what actually holds the load. The integrated -S magnet works with AirTAC CMSE reed and DMSE solid-state sensors.
Airtac BSAID Clamp Cylinder BSAID80X350S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID80X350S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 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 BSAID80X350S Is Used
Mid-Stroke Vertical Hold
Locks a lifting platform at any elevation along the 350 mm travel with 3600 N of holding force, preventing gravity-driven drops during operation.
Power-Loss Safety Enclasp
The spring-applied clamp engages automatically when air pressure drops, freezing the double-rod position instantly to secure the payload.
Machining Position Lock
Uses the dual-rod design to mount a part on one end and a position flag on the other, locking the assembly rigidly for secondary processing.
Is the Airtac BSAID Clamp Cylinder BSAID80X350S the Right Clamp-Lock?
Step down to a 63 mm bore if your application requires less thrust (1402 N pull at 0.5 MPa) and a 2200 N hold, or step up to a 100 mm bore for 3681 N pull and a 5500 N hold. Choose this BSAID clamp-lock over a stroke-end-only SAIL when you must freeze the rod mid-travel. A plain SAID suffices if no intermediate holding is needed. Mounting options for this double-rod type omit FB, CA, CB, and CR, accepting only Basic, FA, LB, TC, TCM1, and TCM2 brackets.
Honesty about the lock is vital: the clamp locks only after the cylinder has stopped and cannot brake a moving rod. It must be unlocked with balanced air pressures on both sides of the piston, or the rod can jump abruptly. Safety-critical loads require an additional independent safety measure. As a replacement, match the double-rod format, 80 mm bore, 350 mm stroke, PT ports, and the correct mounting set, ensuring the -S magnet is present for CMSE/DMSE sensing.
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 BSAID80X350S FAQ
The 3600 N static holding force is the clamp's grip on the rod, which is entirely separate from the 2268 N pneumatic thrust. You must size the 3600 N holding capacity against your static load, not the cylinder's propulsion force.
No, the clamp locks only after the cylinder has stopped; it cannot brake a moving rod. Additionally, it must be unlocked with balanced air pressures on both sides of the piston, or the rod can jump. Safety-critical applications require an independent safety measure.
Related AirTAC Lock & Standard Cylinders
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