Airtac BSAI Locking Clamp Cylinder BSAI100X800
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI100X800 is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 800mm 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
- Stroke800 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 BSAI100X800
The AirTAC BSAI100X800 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released clamp-lock that secures the piston rod at any position along its 800 mm travel. It delivers a practical maximum thrust of 5497 N at 0.7 MPa, while the independent clamping mechanism provides a static holding force of 5500 N. Buyers must size this holding force against the static load weight, as the clamp capacity is entirely separate from the cylinder's pneumatic thrust.
This unit operates within a 0.15-0.7 MPa pressure range and requires a third G1/8 enclasp port to release the brake. The variable air cushions at both ends only serve to decelerate the piston near stroke extremes; they do not hold the load. The robust 25 mm carbon steel rod and M20x1.5 thread provide excellent side-load resistance, though the lengthy 800 mm stroke still necessitates an external guide to prevent rod deflection.
Airtac BSAI Locking Clamp Cylinder BSAI100X800 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI100X800 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 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 BSAI100X800 Is Used
Vertical Axis Hold
Secures a heavy vertical load at any intermediate height without relying on continuous air pressure.
Power Loss Safety
Engages automatically upon air loss to freeze a 100 mm bore actuator exactly where it stopped.
Machining Position Lock
Clamps the extended rod rigidly to prevent deflection during workpiece processing or inspection.
Is the Airtac BSAI Locking Clamp Cylinder BSAI100X800 the Right Clamp-Lock?
Choose this 100 mm bore model when an application requires substantial push force (5497 N at 0.7 MPa) combined with mid-stroke holding. If the load is lighter, stepping down to the BSAI80X200 offers 3518 N thrust and a 3600 N holding force. Conversely, heavier loads might require the BSAI125X800 with 8590 N thrust and an 8600 N hold. Select this clamp-lock variant over a standard SAI cylinder when the load must be maintained during air pressure loss, or over a SAIL model when the hold is needed anywhere along the stroke rather than solely at the end positions.
For safe operation, understand that the clamp locks only after the rod has completely stopped; it cannot brake a moving load. Furthermore, the lock must be released by balancing the air pressures on both sides of the piston, or the rod may jump abruptly. Safety-critical applications require an independent external safety measure. This single-rod configuration uses PT tapered ports (1/2 inch cylinder port, G1/8 enclasp port) and accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. It ships without a magnet; add the -S option for CMSE reed or DMSE electronic sensor compatibility.
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 BSAI100X800 FAQ
The clamp-lock provides a static holding force of 5500 N. It engages via spring pressure to hold the rod at any position bidirectionally, but only after the cylinder has stopped moving.
The clamp is released by applying air to the G1/8 enclasp port, but only after the pneumatic pressures on both sides of the piston are balanced. Releasing the clamp into an unbalanced state can cause abrupt rod movement.
Related AirTAC Lock & Standard Cylinders
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