Airtac BSAI Locking Clamp Cylinder BSAI80X600S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI80X600S is a genuine double-acting ISO 15552 cylinder with a Ø80mm 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 3600 N.
- BoreØ80 mm
- Stroke600 mm
- Cylinder portG3/8
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAI Locking Clamp Cylinder BSAI80X600S
The AirTAC BSAI80X600-S is a double-acting ISO 15552 profile cylinder equipped with a spring-applied, air-released clamp-lock mechanism. It provides a static holding force of 3600 N, gripping the 25 mm carbon steel rod securely at any position along its 600 mm travel. Because it is a single-rod design, it generates 2513 N of push thrust and 2268 N of pull thrust at 0.5 MPa. You must size the 3600 N holding force against your static load, as this clamping capacity is entirely separate from the cylinder's pneumatic thrust.
The clamp locks bidirectionally once the piston has stopped, functioning as an enclasp gripper rather than a moving-rod brake. A third G1/8 enclasp port releases the lock when air pressure is applied, requiring balanced pressures on both sides of the piston to prevent the rod from jumping abruptly upon release. The variable air cushions only decelerate the piston near the stroke ends; the mechanical clamp is what actually holds the load. This unit includes a magnet for CMSE reed and DMSE electronic sensors.
Airtac BSAI Locking Clamp Cylinder BSAI80X600S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI80X600S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 600 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G3/8 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 3600 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 (Ø80 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa (max) | 3519 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (3600 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI80X600S Is Used
Vertical Axis Holding
Locks a heavy vertical load at any intermediate height along the 600 mm stroke, preventing drops during power loss.
Machining Position Hold
Clamps a workpiece in a specific mid-stroke location for machining or inspection without maintaining live air pressure.
Emergency Stop Safety
Holds the rod safely in place when the system e-stops, though independent safety measures are required for human protection.
Is the Airtac BSAI Locking Clamp Cylinder BSAI80X600S the Right Clamp-Lock?
Choose this 80 mm bore when an application demands substantial mid-stroke holding, stepping up from a 63 mm bore that offers 1559 N thrust and 2200 N holding force. If you only need to hold a load at the fully extended or retracted stroke end, a plain SAIL cylinder suffices; the BSAI is necessary when the load must be arrested at varying intermediate positions. For simple movement without any position holding, a standard SAI cylinder is adequate.
Remember that the clamp engages only after the cylinder stops, so human-safety applications require an independent external safety measure. Unlocking demands balanced piston pressures to avoid sudden rod shifts. This 600 mm stroke configuration uses PT tapered ports, an M20x1.5 rod thread, and accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. Given the extended 600 mm stroke, an external guide is highly recommended to manage side loads and prevent rod binding.
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 BSAI80X600S FAQ
The clamp-lock provides a static holding force of 3600 N. It engages bidirectionally at any position along the stroke, but only after the rod has completely stopped moving.
The lock is released by applying air to the G1/8 enclasp port. You must balance the air pressures on both sides of the piston before unlocking, otherwise the rod may move abruptly.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac BSAI Locking Clamp Cylinder BSAI80X600S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.