Airtac BSAID Clamp Cylinder BSAID100X25
The AirTAC Airtac BSAID Clamp Cylinder BSAID100X25 is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 25mm 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
- Stroke25 mm
- Cylinder portG1/2
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID100X25
The AirTAC BSAID100X25 is a double-acting ISO 15552 profile cylinder featuring a rod out both ends and a spring-applied, air-released clamp-lock. It delivers an equal thrust of 3681 N in both directions at 0.5 MPa. The integrated enclasp mechanism clamps the rod to hold a load securely at any position along its 25 mm travel, providing a static holding force of 5500 N. Buyers must size the holding force against the static load, as this 5500 N clamp rating is a distinct quantity from the cylinder's 3681 N thrust.
A third G1/8 pneumatic port supplies the unlock pressure, operating within a 0.15-0.7 MPa range. The clamp locks only after the piston has stopped, meaning it cannot brake a moving rod. The double-rod design allows mounting a workpiece on one end and a guide, counterweight, or position flag on the other, providing dual-side guidance and anti-rotation. The variable air cushion at stroke ends only decelerates the piston; the clamp is the device that physically holds the load.
Airtac BSAID Clamp Cylinder BSAID100X25 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID100X25 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 25 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 BSAID100X25 Is Used
Vertical Load Holding
Locks a heavy vertical lift anywhere in its 25 mm travel to prevent dropping during a sudden power loss.
Machining Position Hold
Clamps a dual-sided workpiece fixture rigidly for machining, using the second rod for an anti-rotation guide.
Emergency Safety Stop
Holds a guarded gate or heavy barrier securely at any partial extension until balanced unlock pressure is applied.
Is the Airtac BSAID Clamp Cylinder BSAID100X25 the Right Clamp-Lock?
Choose this 100 mm bore model when an application requires substantial equal-force thrust both ways and mid-stroke holding. If your load requires less force, stepping down to an 80 mm bore offers 2268 N thrust and a 3600 N holding force. Conversely, a 125 mm bore provides 5734 N thrust and 8600 N holding capacity. The BSAID100X25 is ideal when you need to lock at any position, unlike a SAIL cylinder which only holds at stroke ends, or a plain SAID which lacks a clamp entirely.
For safe operation, the clamp unlocks only when air pressures on both sides of the piston are balanced, preventing abrupt rod jumps. Safety-critical loads require an additional independent safety measure. This configuration features a 25 mm stroke, PT port threads, a 1/2 cylinder port, and a 25 mm carbon steel rod with an M20x1.5 thread. The BSAID mounting set omits FB, CA, CB, and CR brackets, accepting only Basic, FA, LB, TC, TCM1, and TCM2 mounts. No magnet is specified for this unit.
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 BSAID100X25 FAQ
The clamp-lock provides a static holding force of 5500 N. It is spring-applied and grips the rod bidirectionally at any position to hold the load, but it only engages after the cylinder has stopped moving.
The clamp uses a third G1/8 port and requires balanced air pressure on both sides of the piston to unlock. If pressures are not balanced, the rod can jump abruptly upon release. An independent safety measure is required for human safety.
Related AirTAC Lock & Standard Cylinders
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