Airtac BSAID Clamp Cylinder BSAID80X225
The AirTAC Airtac BSAID Clamp Cylinder BSAID80X225 is a genuine double-acting ISO 15552 cylinder with a Ø80mm 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 3600 N.
- BoreØ80 mm
- Stroke225 mm
- Cylinder portG3/8
- TypeDouble rod (BSAID)
- Enclasp portG1/8
- Rod threadM20×1.5
About the Airtac BSAID Clamp Cylinder BSAID80X225
The AirTAC BSAID80X225 is a double-acting ISO 15552 profile cylinder featuring a double-rod layout and an integrated spring-applied, air-released clamp-lock. It secures the load at any position along its 225 mm stroke, delivering a static holding force of 3600 N. Because it is a double-rod unit, the thrust is equal in both directions at 2268 N (0.5 MPa), and the twin 25 mm carbon steel rods extending from both ends allow you to mount a workpiece on one side and a guide, counterweight, or position flag on the opposite side for dual-side guidance. It is crucial to distinguish this 3600 N holding force from the 2268 N thrust; the clamp secures the static load, while thrust drives the motion.
This enclasp mechanism operates via a dedicated G1/8 third port, separate from the 3/8 cylinder ports, requiring 0.15-0.7 MPa to release the lock. Remember that the variable air cushion only decelerates the piston near the stroke ends; it does not hold the load. The clamp locks strictly after the cylinder stops and cannot brake a moving rod. Furthermore, unlocking requires balanced air pressures on both sides of the piston, or the rod may jump abruptly, meaning safety-critical applications need an independent external measure.
Airtac BSAID Clamp Cylinder BSAID80X225 Technical Specifications
| Model | Airtac BSAID Clamp Cylinder BSAID80X225 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø80 mm |
| Stroke | 225 mm |
| Type | Double rod (BSAID), double acting |
| Cylinder port | G3/8 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 3600 N |
| Enclasp / unlock port | G1/8 |
| Operating pressure | 0.15 – 0.7 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 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 (Ø80 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2513 N | 2268 N |
| 0.7 MPa (max) | 3519 N | — |
Equal force both directions (double rod). Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (3600 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAID Clamp Cylinder BSAID80X225 Is Used
Vertical Lift Holding
Holds a lifted vertical payload at any point in the 225 mm travel without relying on continuous air pressure.
Power Loss Safety
Spring-applied clamp immediately secures the 25 mm rods if air supply drops, preventing uncommanded falls.
Machining Position Lock
Uses the second rod for a counterweight while the primary rod locks the workpiece rigidly for inspection.
Is the Airtac BSAID Clamp Cylinder BSAID80X225 the Right Clamp-Lock?
Choose this 80 mm bore model when an application demands mid-stroke holding and dual-side rod mounting. If you need less force, the 63 mm bore offers 1402 N thrust and a 2200 N holding force, while stepping up to the 100 mm bore provides 3681 N thrust and a 5500 N hold. Select the BSAID80X225 over a stroke-end-only SAIL cylinder when you must secure the load anywhere in the travel, not just at the limits. If locking is entirely unnecessary, a plain SAID double-rod cylinder suffices. For stroke lengths at or above 300 mm, adding an external guide is recommended to manage side loads.
For a direct replacement, verify the double-rod configuration, 80 mm bore, 225 mm stroke, and PT tapered ports. The BSAID mounting set omits FB, CA, CB, and CR, accepting only Basic, FA, LB, TC, TCM1, and TCM2 brackets. As specified, this unit has no magnet (-S not specified); if position sensing is required, select an -S variant to use CMSE reed or DMSE electronic sensors.
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 BSAID80X225 FAQ
The integrated clamp-lock provides a static holding force of 3600 N. It is bidirectional, meaning it securely holds the 25 mm rods whether the cylinder was extending or retracting, and it can lock at any position along the stroke.
The clamp unlocks only when the air pressures on both sides of the piston are balanced and the cylinder has stopped. If pressures are unbalanced, the rod can jump abruptly upon release. The clamp locks only after the rod stops and cannot serve as a moving-rod brake.
Related AirTAC Lock & Standard Cylinders
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