Airtac BSAI Locking Clamp Cylinder BSAI80X1000
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI80X1000 is a genuine double-acting ISO 15552 cylinder with a Ø80mm bore, 1000mm 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
- Stroke1000 mm
- Cylinder portG3/8
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM20×1.5
- 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 BSAI80X1000
The AirTAC BSAI80X1000 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released clamp-lock mechanism. It provides a robust static holding force of 3600 N, gripping the 25mm carbon steel rod securely at any position along its 1000mm travel. While the cylinder generates 2513N of thrust at 0.5MPa, the 3600N clamp holding force is a separate quantity; you must size the holding capacity against your static load, not the pneumatic thrust.
This enclasp unit operates at 0.15-0.7MPa and uses a dedicated G1/8 unlock port alongside its 3/8 cylinder ports. The variable air cushion only decelerates the piston near stroke ends to prevent impact damage, whereas the clamp itself is what actually secures the load. The clamp locks only after the rod has stopped and cannot brake a moving load, requiring balanced air pressure on both sides to unlock safely without abrupt rod movement.
Airtac BSAI Locking Clamp Cylinder BSAI80X1000 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI80X1000 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 1000 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 BSAI80X1000 Is Used
Vertical Axis Hold
Secures elevated loads on vertical actuators at any point in the 1000mm travel, preventing crashes during sudden air pressure loss.
Machining Position Lock
Clamps the rod rigidly during drilling or milling operations, ensuring the workpiece remains entirely stationary without relying on live air pressure.
Mid-Stroke Safety Stop
Holds a load securely at any intermediate position along the stroke during emergency stop conditions or power loss.
Is the Airtac BSAI Locking Clamp Cylinder BSAI80X1000 the Right Clamp-Lock?
Choose this 80mm bore when a 63mm bore (1402N thrust, 2200N hold) lacks the required clamping capacity, or step down to a 63mm unit if your load is lighter. Select this BSAI model over a SAIL cylinder when you need to hold the load at any intermediate position, rather than just at the stroke end. If you only need standard movement without intermediate holding, a plain SAI cylinder suffices.
This model has a 1000mm stroke; at this length, the rod is highly susceptible to side-loading, so an external guide rail is essential to prevent binding. The M20x1.5 rod thread on the 25mm rod handles substantial side loads when properly supported. Replacement requires matching the single-rod, 80mm bore, 1000mm stroke, PT ports, and the BSAI mounting set (Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, TCM2). Add an -S magnet for CMSE reed or DMSE solid-state 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 BSAI80X1000 FAQ
The clamp-lock provides a static holding force of 3600 N. It engages via a spring-applied, air-released mechanism to hold the rod at any position, but only locks after the cylinder has completely stopped moving.
The clamp uses a dedicated G1/8 enclasp port and must be unlocked only when the air pressures on both sides of the piston are balanced. If pressures are unbalanced, the rod can move abruptly upon release, so an independent safety measure is required for human-safety loads.
Related AirTAC Lock & Standard Cylinders
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