Airtac BSAID Clamp Cylinder BSAID100X125
The AirTAC Airtac BSAID Clamp Cylinder BSAID100X125 is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 125mm 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
- Stroke125 mm
- Cylinder portG1/2
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID100X125
The AirTAC BSAID100X125 is a double-acting ISO 15552 profile cylinder featuring a double-rod configuration and a spring-applied, air-released clamp-lock. It secures the load at any position along its 125 mm travel, providing a robust static holding force of 5500 N. Because it is a double-rod actuator, the thrust is equal in both directions, delivering 3681 N of push and pull force at 0.5 MPa. A rod extends from both end caps, allowing you to mount a workpiece on one side and a guide, counterweight, or position flag on the opposite side for dual-side anti-rotation.
It is vital to distinguish the 5500 N static holding force from the 3681 N cylinder thrust; you must size the clamp's holding capacity against your static load, not the pneumatic thrust. The clamp uses a third G1/8 enclasp port to release the rod, operating within a 0.15-0.7 MPa pressure range. Furthermore, the variable air cushions at both ends only decelerate the piston near stroke end—they do not hold the load. Only the mechanical clamp secures the rod.
Airtac BSAID Clamp Cylinder BSAID100X125 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID100X125 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 125 mm |
| Type | Double rod (BSAID), 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 | — |
Equal force both directions (double rod). 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 BSAID Clamp Cylinder BSAID100X125 Is Used
Vertical Load Holding
Secures heavy vertical lifts at any point in the 125 mm travel, preventing gravity-driven drops during an air loss event.
Machining Position Lock
Holds a dual-sided workpiece rigidly for machining or inspection, using the second rod for a position flag.
Emergency Stop Hold
Maintains the exact mid-stroke position of a stopped load safely when pneumatic power is removed.
Is the Airtac BSAID Clamp Cylinder BSAID100X125 the Right Clamp-Lock?
Choose this double-rod model when an application requires equal force both ways and intermediate holding, unlike a plain SAID which cannot lock. If you only need to hold at the stroke end, a SAIL cylinder suffices. If you need to step down, the 80 mm bore offers 2268 N thrust and a 3600 N holding force. The clamp locks only after the rod has stopped; it cannot brake a moving load. It must be unlocked with balanced air pressures on both sides of the piston, or the rod may jump abruptly. Safety-critical applications require an independent external measure.
This BSAID100X125 uses PT tapered ports (1/2 inch cylinder ports, G1/8 enclasp port) and accepts Basic, FA, LB, TC, TCM1, and TCM2 mounts (omitting FB, CA, CB, CR). It lacks a standard magnet, so add an -S suffix if CMSE reed or DMSE electronic sensors are needed. The 25 mm rod thread handles high side loads, though external guidance is recommended for long strokes.
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 BSAID Clamp Cylinder BSAID100X125 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. You must balance the air pressure on both sides of the piston before unlocking, otherwise the rod may move abruptly.
Related AirTAC Lock & Standard Cylinders
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