Airtac BSAID Clamp Cylinder BSAID63X250
The AirTAC Airtac BSAID Clamp Cylinder BSAID63X250 is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 250mm 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
- Stroke250 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM16×1.5
About the Airtac BSAID Clamp Cylinder BSAID63X250
The AirTAC BSAID63X250 is a double-acting ISO 15552 profile cylinder featuring a double-rod design and a spring-applied, air-released clamp-lock mechanism. It delivers 1402 N of thrust in both directions at 0.5 MPa and secures the load at any position along the 250 mm stroke with a static holding force of 2200 N. Remember that holding force and thrust are separate values; you must size the 2200 N clamp against your static load, not the cylinder's push thrust.
The dual-rod configuration allows mounting a workpiece on one end and a guide or position flag on the opposite end for dual-side anti-rotation. It uses a 3/8 cylinder port plus a separate G1/8 enclasp port for the unlock pressure (0.15-0.7 MPa). Note that the variable air cushion only decelerates the piston near stroke end; the mechanical clamp is what actually holds the load.
Airtac BSAID Clamp Cylinder BSAID63X250 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID63X250 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 250 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 BSAID63X250 Is Used
Vertical Axis Hold
Prevents gravity-driven drops on vertical lifts by clamping the rod securely at any point in the travel, maintaining position during air pressure loss.
Mid-Stroke Machining
Locks the dual rods at a specific intermediate position to rigidly hold a workpiece for machining or inspection without reaching the stroke ends.
Dual-Side Tooling
Supports mounting a primary tool on one rod end and a counterweight or alignment guide on the opposite end, preventing rotation during clamped operations.
Is the Airtac BSAID Clamp Cylinder BSAID63X250 the Right Clamp-Lock?
Choose this double-rod model when you need equal bidirectional force and dual-side guidance. If you do not need the second rod, step down to the single-rod BSAI63X250. If your load is lighter, the 50 mm bore offers 825 N thrust and 1400 N holding force. If you only need to hold at stroke ends, a plain SAI or SAIL cylinder suffices, but BSAID locks anywhere.
This clamp locks only after the rod stops; it cannot brake a moving load. Unlocking requires balanced air pressure on both piston sides, or the rod may jump. For human-safety critical applications, add an independent safety measure. Replacement requires a double-rod, 63 mm bore, 250 mm stroke, PT ports, and the BSAID mounting set (Basic, FA, LB, TC, TCM1, TCM2; FB/CA/CB/CR are omitted). The 20 mm rod and M16x1.5 thread handle side loads well, but for strokes over 300 mm, use an external guide.
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 BSAID63X250 FAQ
The built-in clamp-lock provides a static holding force of 2200 N. It is bidirectional and engages via spring pressure to hold the double rod securely at any position along the stroke.
The clamp unlocks only when air pressure (0.15-0.7 MPa) is applied to the G1/8 enclasp port AND the pressures on both sides of the piston are balanced. If pressures are unbalanced, the rod can move abruptly upon release.
Related AirTAC Lock & Standard Cylinders
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