Airtac BSAI Locking Clamp Cylinder BSAI100X450
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI100X450 is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 450mm 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 5500 N.
- BoreØ100 mm
- Stroke450 mm
- Cylinder portG1/2
- 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 BSAI100X450
The AirTAC BSAI100X450 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released clamp-lock that grips the rod to secure a static load of 5500 N at any position along its 450 mm travel. Operating at 0.15-0.7 MPa, it delivers a practical push thrust of 5497 N at 0.7 MPa. Remember that this holding force is a separate quantity from the cylinder thrust; you must size the clamp capacity against your static load, not the pneumatic push force. The enclasp mechanism uses a dedicated G1/8 unlock port, requiring balanced air pressure on both sides of the piston to release safely.
The variable air cushion at the stroke ends only decelerates the piston; it does not hold the load. The clamp itself locks bidirectionally, but only after the rod has completely stopped, meaning it cannot serve as a moving-rod brake. This 100 mm bore variant uses a robust M20x1.5 rod thread and a 1/2 inch cylinder port to handle substantial pneumatic flow.
Airtac BSAI Locking Clamp Cylinder BSAI100X450 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI100X450 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G1/2 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 5500 N |
| Enclasp / unlock port | G1/8 |
| Operating pressure | 0.15 – 0.7 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 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 (Ø100 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 (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa (max) | 5498 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (5500 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI100X450 Is Used
Vertical Axis Holding
Secures heavy vertical lifting stages at any intermediate height with 5500 N of static holding force, preventing drops during air pressure loss.
Emergency Power Loss Hold
Spring-applied clamp engages instantly when air is removed, freezing the 450 mm stroke position safely mid-travel without requiring live pressure.
Machining Position Lock
Locks the rod rigidly after the cylinder stops to provide a stable, vibration-free workpiece position for machining or inspection tasks.
Is the Airtac BSAI Locking Clamp Cylinder BSAI100X450 the Right Clamp-Lock?
Choose this 100 mm bore when a heavy vertical or suspended load requires reliable intermediate positioning, as the 5500 N clamp easily secures the 5497 N maximum thrust capacity. If your application only needs holding at the fully extended or retracted stroke end, a plain SAIL stroke-end lock is sufficient, but BSAI is required for true lock-anywhere functionality. If your load is lighter, stepping down to a BSAI80 provides 3600 N of holding force and 3518 N of thrust.
For safety, the clamp locks only after the cylinder stops and must be unlocked with balanced pressures to prevent the rod from jumping abruptly; safety-critical applications need an independent external measure. With a 450 mm stroke, the M20x1.5 rod carries good side-load capacity, but an external guide is still recommended for unsupported lengths. This single-rod configuration accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. It features PT tapered ports and can be fitted with AirTAC CMSE (reed) or DMSE (electronic) sensors by specifying the -S magnet option.
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 BSAI100X450 FAQ
The BSAI100X450 provides a static holding force of 5500 N. The clamp is bidirectional and locks at any position along the 450 mm stroke, but only after the rod has stopped moving; it cannot brake a moving load.
The clamp is spring-applied and air-released via a dedicated G1/8 port. To prevent the rod from jumping abruptly, you must balance the air pressure on both sides of the piston before unlocking, ensuring the cylinder has completely stopped.
Related AirTAC Lock & Standard Cylinders
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