Airtac BSAI Locking Clamp Cylinder BSAI63X175
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI63X175 is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 175mm 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
- Stroke175 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 BSAI63X175
The AirTAC BSAI63X175 is a double-acting ISO 15552 profile cylinder equipped with a built-in spring-applied, air-released clamp-lock. It delivers a practical push thrust of 2182 N at 0.7 MPa, while the independent gripper mechanism provides a static holding force of 2200 N. Buyers must distinguish between these two ratings: thrust moves the load, but the clamp's holding force is what keeps it stationary. This enclasp unit secures the piston rod at any position along its 175 mm travel.
The clamp operates bidirectionally, locking whether the rod was extending or retracting. It engages only after the cylinder has stopped, meaning it cannot brake a moving load. Release requires a separate G1/8 enclasp port and balanced air pressure on both piston sides; otherwise, the rod may jump abruptly upon unlocking. Furthermore, the variable air cushions at the stroke ends only decelerate the piston, whereas the clamp mechanism is the true load holder. This extruded aluminum barrel design accepts AirTAC CMSE reed and DMSE solid-state sensors.
Airtac BSAI Locking Clamp Cylinder BSAI63X175 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI63X175 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 175 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 BSAI63X175 Is Used
Vertical Axis Holding
Prevents gravity-induced drops on vertical lifts by clamping the rod mid-stroke, holding the load securely even if air pressure is lost.
Power Loss Safety
Spring-applied clamping engages automatically during an air or power failure, freezing the piston at its exact current travel position.
Machining Position Lock
Freezes the workpiece at a precise intermediate point for secure clamping, machining, or inspection without relying on end-stop cushions.
Is the Airtac BSAI Locking Clamp Cylinder BSAI63X175 the Right Clamp-Lock?
Select this 63 mm bore model when intermediate stopping is required, stepping up from a 50 mm bore that offers 1374 N thrust and 1400 N holding force. The BSAI63X175 outperforms a SAIL cylinder because it locks anywhere along the stroke, not just at the end caps. If position holding is unnecessary, a plain SAI cylinder suffices. For safe operation, remember the clamp locks only after the rod stops and needs balanced pressure to unlock safely; human-safety applications require an independent backup measure. This configuration uses PT tapered ports, a 3/8 cylinder port, an M16x1.5 rod thread, and mounts via Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, or TCM2 brackets.
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 BSAI63X175 FAQ
It provides a static holding force of 2200 N. The spring-applied clamp locks the rod at any position bidirectionally, but only after the cylinder has stopped moving.
Unlocking requires applying air to the G1/8 enclasp port after balancing pressures on both sides of the piston. If pressures are unbalanced, the rod can move abruptly upon release.
Related AirTAC Lock & Standard Cylinders
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