Airtac BSAID Clamp Cylinder BSAID63X25
The AirTAC Airtac BSAID Clamp Cylinder BSAID63X25 is a genuine double-acting ISO 15552 cylinder with a Ø63mm 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 2200 N.
- BoreØ63 mm
- Stroke25 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM16×1.5
About the Airtac BSAID Clamp Cylinder BSAID63X25
The AirTAC BSAID63X25 is a double-acting ISO 15552 profile cylinder featuring a rod out both ends and a built-in clamp-lock mechanism. A spring-applied, air-released gripper engages the rod to hold the load at any position along its 25 mm travel, delivering a static holding force of 2200 N. Because it is a double-rod design, the thrust is equal in both directions at 1402 N, making it ideal for dual-side guidance or mounting a counterweight on the opposing end.
It is crucial to distinguish this 2200 N holding force from the cylinder's 1402 N thrust—the clamp secures the static load independently of the pneumatic pressure. The clamp uses a third G1/8 enclasp port and requires a balanced 0.15-0.7 MPa air pressure to unlock safely. Furthermore, the variable air cushion only decelerates the piston near stroke ends; the mechanical clamp is the sole device that actually holds the load.
Airtac BSAID Clamp Cylinder BSAID63X25 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID63X25 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 25 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G3/8 |
| Rod thread | M16×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 2200 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 (Ø63 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 (Ø63mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 1559 N | 1402 N |
| 0.7 MPa (max) | 2182 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (2200 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID63X25 Is Used
Vertical Z-Axis Hold
Freezes a lifted payload at any point in the 25 mm travel, preventing sudden drops during a compressed air failure.
Machining Position Lock
Secures the dual-rod workpiece platform rigidly in place during milling or drilling without relying on live air pressure.
Dual-Side Tooling Mount
Uses the second rod end for a counterweight or guide, while the clamp safely holds the assembly mid-stroke.
Is the Airtac BSAID Clamp Cylinder BSAID63X25 the Right Clamp-Lock?
Select this 63 mm bore model when an application requires equal force in both directions alongside mid-stroke holding. If you need less force, the 50 mm bore offers 825 N thrust and 1400 N holding force; if you need more, the 80 mm bore provides 2268 N thrust and 3600 N hold. Choose this BSAID over a stroke-end-only SAIL lock when you must freeze the load anywhere in the travel. The 20 mm rod and M16x1.5 thread provide robust side-load resistance, and the double-rod design allows mounting a position flag or second tool on the opposite end.
For replacements, match the double-rod configuration, 63 mm bore, 25 mm stroke, and PT port threads. The BSAID mounting set omits FB, CA, CB, and CR brackets, accepting only Basic, FA, LB, TC, TCM1, and TCM2. Note that the clamp locks only after the rod has completely stopped—it cannot brake a moving rod. Always balance pressures before unlocking to prevent the rod from jumping, and add an independent safety measure for human-safety-critical loads.
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 BSAID63X25 FAQ
The clamp-lock provides a static holding force of 2200 N. It engages via a spring-applied gripper to hold the double rod securely at any position along the 25 mm stroke, independent of the 1402 N pneumatic thrust.
The clamp locks only after the cylinder has stopped moving; it cannot brake a moving rod. To unlock it safely, air pressure must be balanced on both sides of the piston via the G1/8 enclasp port, otherwise the rod may jump abruptly.
Related AirTAC Lock & Standard Cylinders
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