Airtac BSAID Clamp Cylinder BSAID63X250S
The AirTAC Airtac BSAID Clamp Cylinder BSAID63X250S 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 BSAID63X250S
The AirTAC BSAID63X250-S is a double-acting ISO 15552 profile cylinder featuring a rod out both ends and a built-in spring-applied, air-released enclasp mechanism. It delivers 1402 N of thrust in both directions at 0.5 MPa, while the clamp-lock provides a static holding force of 2200 N. It is vital to distinguish holding force from thrust: the 2200 N rating is the clamp's grip on the rod to maintain a static load, entirely separate from the pneumatic thrust used to move the workpiece.
This bidirectional clamp locks the carbon steel rod at any position along the 250 mm stroke, but only after the piston has stopped; it cannot brake a moving load. The mechanism uses a third G1/8 enclasp port and requires a balanced 0.15-0.7 MPa air pressure to unlock safely, preventing abrupt rod jumps. The double-rod layout is chosen specifically to mount a workpiece on one end and a guide, counterweight, or position flag on the other, ensuring dual-side anti-rotation guidance.
Airtac BSAID Clamp Cylinder BSAID63X250S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID63X250S |
|---|---|
| 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 BSAID63X250S Is Used
Vertical Load Holding
Suspends elevated platforms or heavy lifting stages mid-stroke, using the 2200 N clamp to prevent falls when air pressure is removed.
Power Loss Safety Stop
Secures the workpiece instantly anywhere along the 250 mm travel during an unexpected pneumatic or electrical power failure.
Dual-Side Machining Positioning
Uses the second rod end for a position flag or guide while locking the primary tool carriage firmly for precise milling or inspection.
Is the Airtac BSAID Clamp Cylinder BSAID63X250S the Right Clamp-Lock?
Select this double-rod model when you need equal push and pull forces alongside multi-axis stability. If your application only requires locking at the stroke end rather than anywhere along the travel, a SAIL stroke-end lock cylinder suffices. If no clamping is needed at all, a plain SAID double-rod cylinder is a simpler choice. To step down, a bore 50 offers 825 N thrust and a 1400 N hold; to step up, a bore 80 provides 2268 N thrust and a 3600 N hold.
For replacement, verify the 63 mm bore, 250 mm stroke, PT port threads, and the -S magnet for CMSE reed and DMSE solid-state sensors. The BSAID mounting set omits FB, CA, CB, and CR brackets, accepting only Basic, FA, LB, TC, TCM1, and TCM2. Since the stroke is 250 mm, the 20 mm rod diameter handles moderate side loads, but an external guide is recommended for heavy offsets. Always confirm the cylinder has stopped before applying the clamp, and add an independent safety measure for human-safety-critical holds.
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 BSAID63X250S FAQ
The clamp-lock provides a static holding force of 2200 N. It engages a spring-applied gripper on the rod to hold the load at any position, but only after the cylinder has completely stopped moving.
The clamp is released via a third G1/8 enclasp port, but only when the air pressures on both sides of the piston are balanced. If pressures are unbalanced, the rod can jump abruptly upon release, so always ensure the cylinder has stopped and pressures are equal before unlocking.
Related AirTAC Lock & Standard Cylinders
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