Airtac BSAI Locking Clamp Cylinder BSAI100X225S
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI100X225S is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 225mm 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
- Stroke225 mm
- Cylinder portG1/2
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAI Locking Clamp Cylinder BSAI100X225S
The AirTAC BSAI100X225-S is a double-acting ISO 15552 profile cylinder featuring a built-in spring-applied, air-released clamp-lock. It secures the 25mm piston rod at any position along its 225mm stroke, delivering a static holding force of 5500 N. The integrated -S magnet works seamlessly with CMSE reed and DMSE electronic sensors for precise position feedback. Operating pressure spans 0.15-0.7 MPa, generating 3927 N of thrust at 0.5 MPa and 5497 N at 0.7 MPa.
Crucially, the 5500 N holding force is a distinct static clamp rating, separate from the cylinder's 5497 N dynamic thrust, meaning you must size the clamp against the dead load, not the push force. Remember that the variable air cushion only decelerates the piston near stroke ends; the mechanical clamp is the true load holder. Unlocking requires a third G1/8 enclasp port and balanced air pressure on both sides of the piston to prevent the rod from jumping abruptly upon release.
Airtac BSAI Locking Clamp Cylinder BSAI100X225S Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI100X225S |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 225 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 BSAI100X225S Is Used
Vertical Load Holding
Suspends heavy vertical workpieces anywhere in the 225mm travel without relying on continuous air pressure, securing 5500 N against gravity.
Power Failure Safety
Engages the spring-applied clamp instantly upon air loss to freeze the 100mm bore rod in its exact current position, preventing crashes.
Machining Position Lock
Holds a part rigidly for inspection or drilling at a custom mid-stroke point where a stroke-end lock cylinder would fail to secure the load.
Is the Airtac BSAI Locking Clamp Cylinder BSAI100X225S the Right Clamp-Lock?
Choose this 100mm bore when a 63mm bore (1402 N thrust, 2200 N holding force) is insufficient to safely suspend your load. The BSAI100X225-S is preferred over a SAIL stroke-end lock when you must freeze the rod mid-travel rather than solely at the extremes. If you only need standard extension without mid-stroke holding, a plain SAI cylinder suffices. This single-rod unit uses a 1/2 inch PT port for the cylinder and a G1/8 port for the enclasp.
The robust M20x1.5 rod thread handles high side loads well, but at 225mm stroke you should still use an external guide rail for heavy offset loads. It accepts Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. Note that the clamp locks only after the rod stops moving, so it cannot brake a moving load; human-safety applications require an independent external safety measure.
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 BSAI100X225S FAQ
The clamp-lock provides a static holding force of 5500 N. It locks the rod at any position along the stroke bidirectionally, but only engages after the cylinder has stopped moving; it cannot brake a moving rod.
You must apply air pressure to the G1/8 enclasp port after balancing the air pressures on both sides of the piston. Releasing the clamp without balanced pressure can cause the rod to jump abruptly, posing a hazard.
Related AirTAC Lock & Standard Cylinders
Request a Quote for Airtac BSAI Locking Clamp Cylinder BSAI100X225S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.