Airtac BSAI Locking Clamp Cylinder BSAI63X700
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI63X700 is a genuine double-acting ISO 15552 cylinder with a Ø63mm bore, 700mm 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
- Stroke700 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 BSAI63X700
The AirTAC BSAI63X700 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released clamp-lock mechanism that secures the piston rod at any position along its 700 mm travel. It provides a static holding force of 2200 N and generates a practical maximum thrust of 2182 N at 0.7 MPa. It is crucial to distinguish between these two values: the cylinder thrust moves the load, but the 2200 N clamp holding force is what actually resists the static load when air is removed.
This mechanism requires a third G1/8 enclasp port to release the grip, operating within a balanced pressure range of 0.15-0.7 MPa. The variable air cushion at the stroke ends only decelerates the piston to prevent impact damage; it does not hold the load. The clamp locks bidirectionally, but only after the rod has completely stopped, meaning it cannot function as a dynamic brake for a moving rod.
Airtac BSAI Locking Clamp Cylinder BSAI63X700 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI63X700 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø63 mm |
| Stroke | 700 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 BSAI63X700 Is Used
Vertical Axis Hold
Secures a 700 mm vertical lift at any intermediate height with 2200 N of holding force, preventing gravity-driven drops during air loss.
Emergency Stop Safety
Locks the piston rod in place wherever it stops along the travel when power is cut, though an independent safety measure is required for human safety.
Machining Position Lock
Holds a workpiece rigidly at a specific stroke position for machining or inspection, functioning independently of the air cushions.
Is the Airtac BSAI Locking Clamp Cylinder BSAI63X700 the Right Clamp-Lock?
Choose this 63 mm bore when a 50 mm bore (providing 982 N thrust and 1400 N holding force at 0.5 MPa) is insufficient to safely suspend your load. If your application only requires holding at the fully extended or retracted stroke end, a plain SAIL stroke-end lock cylinder is a simpler solution, whereas the BSAI is necessary for intermediate positioning. For standard pneumatic motion without any holding requirement, a base SAI cylinder suffices.
When replacing or specifying this unit, confirm the single-rod configuration, 63 mm bore, 700 mm stroke, and PT tapered ports (3/8 cylinder port, G1/8 enclasp port). Because this stroke is 700 mm, an external guide is highly recommended to prevent excessive side-loading on the 20 mm rod. The mounting set includes Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2. Note that the clamp must be unlocked with balanced air pressures on both sides of the piston to prevent the rod from jumping abruptly, and human-safety applications require an independent mechanical safety measure.
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 BSAI63X700 FAQ
The BSAI63X700 provides a static holding force of 2200 N. This clamp is spring-applied and air-released, meaning it grips the rod securely at any position along the 700 mm stroke to hold the load without live air pressure.
The clamp locks only after the cylinder has stopped and cannot brake a moving rod. To unlock it safely, the air pressures on both sides of the piston must be balanced; otherwise, the rod can move abruptly upon release. Human-safety critical loads require an additional independent safety measure.
Related AirTAC Lock & Standard Cylinders
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