Airtac BSAI Locking Clamp Cylinder BSAI50X600
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI50X600 is a genuine double-acting ISO 15552 cylinder with a Ø50mm bore, 600mm 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 1400 N.
- BoreØ50 mm
- Stroke600 mm
- Cylinder portG1/4
- 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 BSAI50X600
The AirTAC BSAI50X600 is a double-acting ISO 15552 profile cylinder featuring a built-in clamp-lock mechanism that secures the load at any position along its 600 mm stroke. It provides a static holding force of 1400 N, while the base cylinder generates 982 N of thrust at 0.5 MPa. Buyers must distinguish between holding force and thrust: the clamp's 1400 N rating secures the static load, whereas the 982 N thrust dictates the pneumatic moving capability.
This enclasp mechanism is spring-applied and air-released, operating via a dedicated G1/8 third port, separate from the 1/4 cylinder ports. The clamp locks only after the rod has stopped, meaning it cannot brake a moving load. Additionally, the variable air cushion at the ends only decelerates the piston near stroke extremes; it does not hold the load.
Airtac BSAI Locking Clamp Cylinder BSAI50X600 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI50X600 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø50 mm |
| Stroke | 600 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G1/4 |
| Rod thread | M16×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 1400 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 (Ø50 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 (Ø50mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 982 N | 825 N |
| 0.7 MPa (max) | 1374 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (1400 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI50X600 Is Used
Vertical Axis Hold
Secures a 50 mm bore vertical lift at any point in its 600 mm travel, preventing gravity-driven drops when air pressure is removed.
Power Loss Safety
Spring-applied clamp engages automatically upon loss of air pressure, freezing the rod exactly where it stopped to protect the workpiece.
Machining Position Lock
Holds a part firmly with 1400 N of static force for intermediate-stroke machining or inspection tasks without relying on live pressure.
Is the Airtac BSAI Locking Clamp Cylinder BSAI50X600 the Right Clamp-Lock?
Choose this 50 mm bore when an application requires a 982 N push force at 0.5 MPa alongside a 1400 N static hold anywhere in the 600 mm travel. If a smaller footprint suffices, the 40 mm bore offers 628 N thrust and a 900 N hold; for heavier loads, the 63 mm bore provides 1559 N thrust and a 2200 N hold. Choose BSAI over a SAIL cylinder when you need mid-stroke holding rather than just stroke-end retention.
Because the stroke is 600 mm, an external guide is recommended to prevent rod sag and side-load wear. The clamp locks only after the cylinder stops, requiring balanced air pressure on both sides to unlock safely without abrupt rod jumping. For safety-critical loads, add an independent mechanical measure. This single-rod variant accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, or TCM2 mounts, uses PT ports, and has no magnet for sensors.
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 BSAI50X600 FAQ
It uses a spring-applied, air-released mechanism to grip the piston rod at any stroke position, providing a static holding force of 1400 N. The lock engages only after the cylinder has stopped moving and is released via a G1/8 port.
No, the clamp cannot stop a moving rod and only engages after the cylinder stops. To prevent abrupt movement on release, air pressures on both sides must be balanced before unlocking. For human safety, an independent external measure is required.
Related AirTAC Lock & Standard Cylinders
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