Airtac BSAI Locking Clamp Cylinder BSAI63X500S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI63X500S is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 500mm 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
- Stroke500 mm
- Cylinder portG3/8
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM16×1.5
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac BSAI Locking Clamp Cylinder BSAI63X500S
The AirTAC BSAI63X500-S is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released clamp-lock. It secures the carbon steel piston rod at any point along its 500mm travel, delivering a static holding force of 2200N. The bore generates 1559N push thrust at 0.5MPa (2182N at the 0.7MPa practical maximum). Buyers must distinguish this holding force from thrust: the 2200N clamp rating dictates static load capacity, while thrust governs dynamic movement.
This unit features a PT-threaded 3/8 cylinder port plus a separate G1/8 enclasp port for the unlock mechanism. The lock engages only after the rod stops, meaning it cannot brake a moving load. Release requires balanced air pressure on both piston sides to prevent abrupt rod jumps. The integrated variable air cushion decelerates the piston near stroke ends, but the clamp provides the actual position holding. An -S magnet enables position feedback via CMSE reed or DMSE electronic sensors.
Airtac BSAI Locking Clamp Cylinder BSAI63X500S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI63X500S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 500 mm |
| Type | Single rod (BSAI), 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 | — |
Push/pull as tabulated. 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 BSAI Locking Clamp Cylinder BSAI63X500S Is Used
Vertical Axis Hold
Maintains a 2200N vertical load at any intermediate height without relying on continuous air pressure.
Emergency Drop Prevention
Engages instantly upon power loss to freeze the rod in place, requiring a balanced-pressure restart.
Machining Position Lock
Secures the workpiece firmly at a specific 500mm stroke coordinate for stable inspection or drilling.
Is the Airtac BSAI Locking Clamp Cylinder BSAI63X500S the Right Clamp-Lock?
Choose this 63mm bore when an application requires mid-stroke holding that a SAIL end-of-stroke lock cannot provide. If the 1402N pull thrust at 0.5MPa is insufficient, stepping up to the 80mm bore yields 2268N thrust and 3600N holding force. For simple extension moves without intermediate stops, a plain SAI cylinder suffices. For safety-critical vertical loads, add an independent external brake, as this clamp cannot arrest dynamic motion and requires balanced pressure to unlock safely.
This 500mm stroke configuration uses a 3/8 PT port and a 20mm rod with an M16x1.5 thread. Because the stroke exceeds 300mm, an external guide rail is recommended to prevent excessive side-loading on the rod seal. The single-rod mounting set includes Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 brackets. The -S magnet pairs directly with AirTAC CMSE and DMSE switches.
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 BSAI Locking Clamp Cylinder BSAI63X500S FAQ
The integrated clamp-lock provides a static holding force of 2200N. It engages at any position along the 500mm stroke but only after the cylinder has come to a complete stop.
Air pressure must be balanced on both sides of the piston before applying 0.15-0.7MPa to the G1/8 enclasp port. Without balanced pressure, the rod can jump abruptly upon release.
Related AirTAC Lock & Standard Cylinders
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