Airtac BSAID Clamp Cylinder BSAID63X25S
The AirTAC Airtac BSAID Clamp Cylinder BSAID63X25S 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 BSAID63X25S
The AirTAC BSAID63X25-S is a double-acting ISO 15552 profile cylinder featuring a double-rod configuration and a spring-applied, air-released clamp-lock. It provides a static holding force of 2200 N, gripping the rod securely at any position along its 25 mm travel. Because it is a double-rod design, the thrust is equal in both directions at 1402 N (0.5 MPa), and the second rod allows you to mount a position flag, counterweight, or secondary tool on the opposite end for dual-side guidance.
A critical distinction is that the 2200 N clamp holding force is a separate metric from the 1402 N cylinder thrust; you must size the holding force against your static load, not the drive thrust. The clamp operates via a dedicated G1/8 enclasp port, which is entirely separate from the 3/8 cylinder ports. Note that the variable air cushions only decelerate the piston near stroke ends; the mechanical clamp is what actually holds the load.
Airtac BSAID Clamp Cylinder BSAID63X25S Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID63X25S |
|---|---|
| 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 BSAID63X25S Is Used
Vertical Mid-Stroke Hold
Suspends a vertical load securely at any point in the 25 mm travel using the 2200 N clamp, preventing drops during machining cycles.
Power Loss Safety
Spring-applied clamp engages automatically on air loss to freeze the double-rod payload exactly where it stopped.
Inspection Positioning
Uses the second rod for a position flag while the primary end holds the workpiece rigid for quality checks.
Is the Airtac BSAID Clamp Cylinder BSAID63X25S the Right Clamp-Lock?
Choose this double-rod clamp-lock model when you need to hold a load mid-stroke rather than just at the end of travel, which is where a standard SAIL cylinder falls short. If you do not require mid-stroke locking, a plain SAID cylinder is sufficient. If you need a larger holding capacity, stepping up to the 80 mm bore increases the static hold to 3600 N and the pull thrust to 2268 N; stepping down to the 50 mm bore reduces the hold to 1400 N and thrust to 825 N.
For safe operation, remember the clamp locks only after the cylinder has stopped; it cannot brake a moving rod. You must unlock it with balanced air pressures on both sides of the piston, or the rod may jump abruptly. This unit includes a magnet for CMSE reed and DMSE electronic sensors, uses PT ports, and accepts Basic, FA, LB, TC, TCM1, or TCM2 mounts (omitting FB/CA/CB/CR). The 20 mm rod with an M16x1.5 thread handles side loads well, though external guidance is always recommended for precise dual-rod alignment.
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 BSAID63X25S FAQ
The spring-applied clamp provides a static holding force of 2200 N. It locks the rod bidirectionally at any position along the stroke, but only after the piston has stopped moving.
You must apply 0.15-0.7 MPa to the G1/8 enclasp port to release the clamp, but only after balancing the air pressures on both sides of the piston. If pressures are unbalanced, the rod can move abruptly upon unlocking.
Related AirTAC Lock & Standard Cylinders
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